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removed all template / AST rewrite stuff; massive change; added -encoding tool option 

[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9780]
This commit is contained in:
parrt 2012-01-02 18:13:16 -08:00
parent 1921a46dd2
commit 1b04195a2f
154 changed files with 637 additions and 14092 deletions
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26
runtime/Java/src/org/antlr/v4/runtime/ANTLRErrorStrategy.java
View File

@ -30,9 +30,9 @@ import org.antlr.v4.runtime.misc.OrderedHashSet;
*
* TODO: what to do about lexers
*/
public interface ANTLRErrorStrategy<Symbol> {
public interface ANTLRErrorStrategy {
/** Report any kind of RecognitionException. */
void reportError(@NotNull BaseRecognizer<Symbol> recognizer,
void reportError(@NotNull BaseRecognizer recognizer,
@Nullable RecognitionException e)
throws RecognitionException;
@ -52,7 +52,7 @@ public interface ANTLRErrorStrategy<Symbol> {
* "inserting" tokens, we need to specify what that implicitly created
* token is. We use object, because it could be a tree node.
*/
Symbol recoverInline(@NotNull BaseRecognizer<Symbol> recognizer)
Token recoverInline(@NotNull BaseRecognizer recognizer)
throws RecognitionException;
/** Resynchronize the parser by consuming tokens until we find one
@ -60,7 +60,7 @@ public interface ANTLRErrorStrategy<Symbol> {
* the current rule. The exception contains info you might want to
* use to recover better.
*/
void recover(@NotNull BaseRecognizer<Symbol> recognizer,
void recover(@NotNull BaseRecognizer recognizer,
@Nullable RecognitionException e);
/** Make sure that the current lookahead symbol is consistent with
@ -90,14 +90,14 @@ public interface ANTLRErrorStrategy<Symbol> {
* turn off this functionality by simply overriding this method as
* a blank { }.
*/
void sync(@NotNull BaseRecognizer<Symbol> recognizer);
void sync(@NotNull BaseRecognizer recognizer);
/** Notify handler that parser has entered an error state. The
* parser currently doesn't call this--the handler itself calls this
* in report error methods. But, for symmetry with endErrorCondition,
* this method is in the interface.
*/
void beginErrorCondition(@NotNull BaseRecognizer<Symbol> recognizer);
void beginErrorCondition(@NotNull BaseRecognizer recognizer);
/** Is the parser in the process of recovering from an error? Upon
* a syntax error, the parser enters recovery mode and stays there until
@ -105,13 +105,13 @@ public interface ANTLRErrorStrategy<Symbol> {
* avoid sending out spurious error messages. We only want one error
* message per syntax error
*/
boolean inErrorRecoveryMode(@NotNull BaseRecognizer<Symbol> recognizer);
boolean inErrorRecoveryMode(@NotNull BaseRecognizer recognizer);
/** Reset the error handler. Call this when the parser
* matches a valid token (indicating no longer in recovery mode)
* and from its own reset method.
*/
void endErrorCondition(@NotNull BaseRecognizer<Symbol> recognizer);
void endErrorCondition(@NotNull BaseRecognizer recognizer);
/** Called when the parser detects a true ambiguity: an input sequence can be matched
* literally by two or more pass through the grammar. ANTLR resolves the ambiguity in
@ -120,7 +120,7 @@ public interface ANTLRErrorStrategy<Symbol> {
* that can match the input sequence. This method is only called when we are parsing with
* full context.
*/
void reportAmbiguity(@NotNull BaseRecognizer<Symbol> recognizer,
void reportAmbiguity(@NotNull BaseRecognizer recognizer,
DFA dfa, int startIndex, int stopIndex, @NotNull IntervalSet ambigAlts,
@NotNull OrderedHashSet<ATNConfig> configs);
@ -130,12 +130,12 @@ public interface ANTLRErrorStrategy<Symbol> {
* we can't be sure if a conflict is an ambiguity or simply a weakness in the Strong LL parsing
* strategy. If we are parsing with full context, this method is never called.
*/
// void reportConflict(@NotNull BaseRecognizer<Symbol> recognizer,
// void reportConflict(@NotNull BaseRecognizer recognizer,
// int startIndex, int stopIndex, @NotNull IntervalSet ambigAlts,
// @NotNull OrderedHashSet<ATNConfig> configs);
void reportAttemptingFullContext(@NotNull BaseRecognizer<Symbol> recognizer,
void reportAttemptingFullContext(@NotNull BaseRecognizer recognizer,
@NotNull DFA dfa,
int startIndex, int stopIndex,
@NotNull OrderedHashSet<ATNConfig> configs);
@ -145,7 +145,7 @@ public interface ANTLRErrorStrategy<Symbol> {
* is more complicated than Strong LL can handle. The parser moved up to full context
* parsing for that input sequence.
*/
void reportContextSensitivity(@NotNull BaseRecognizer<Symbol> recognizer,
void reportContextSensitivity(@NotNull BaseRecognizer recognizer,
@NotNull DFA dfa,
int startIndex, int stopIndex,
@NotNull OrderedHashSet<ATNConfig> configs);
@ -155,7 +155,7 @@ public interface ANTLRErrorStrategy<Symbol> {
* If there are fewer than n-1, then we don't know which make it alternative to protect
* if the predicates fail.
*/
void reportInsufficientPredicates(@NotNull BaseRecognizer<Symbol> recognizer,
void reportInsufficientPredicates(@NotNull BaseRecognizer recognizer,
@NotNull DFA dfa,
int startIndex, int stopIndex, @NotNull IntervalSet ambigAlts,
DecisionState decState,

8
runtime/Java/src/org/antlr/v4/runtime/BailErrorStrategy.java
View File

@ -32,14 +32,14 @@ package org.antlr.v4.runtime;
/** Bail out of parser at first syntax error. Do this to use it:
* myparser.setErrorHandler(new BailErrorStrategy<Token>());
*/
public class BailErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol> {
public class BailErrorStrategy extends DefaultErrorStrategy {
/** Instead of recovering from exception e, Re-throw wrote it wrapped
* in a generic RuntimeException so it is not caught by the
* rule function catches. Exception e is the "cause" of the
* RuntimeException.
*/
@Override
public void recover(BaseRecognizer<Symbol> recognizer, RecognitionException e) {
public void recover(BaseRecognizer recognizer, RecognitionException e) {
throw new RuntimeException(e);
}
@ -47,7 +47,7 @@ public class BailErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol> {
* successfully recovers, it won't throw an exception.
*/
@Override
public Symbol recoverInline(BaseRecognizer<Symbol> recognizer)
public Token recoverInline(BaseRecognizer recognizer)
throws RecognitionException
{
throw new RuntimeException(new InputMismatchException(recognizer));
@ -55,5 +55,5 @@ public class BailErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol> {
/** Make sure we don't attempt to recover from problems in subrules. */
@Override
public void sync(BaseRecognizer<Symbol> recognizer) { }
public void sync(BaseRecognizer recognizer) { }
}

111
runtime/Java/src/org/antlr/v4/runtime/BaseRecognizer.java
View File

@ -32,7 +32,6 @@ import org.antlr.v4.runtime.atn.*;
import org.antlr.v4.runtime.dfa.DFA;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.runtime.misc.Nullable;
import org.antlr.v4.runtime.tree.BufferedASTNodeStream;
import org.antlr.v4.runtime.tree.ParseTreeListener;
import java.util.ArrayList;
@ -43,17 +42,19 @@ import java.util.List;
* support code essentially; most of it is error recovery stuff and
* backtracking.
*
* TODO: rename since lexer not under. or reorg parser/treeparser; treeparser under parser?
* TODO: rename / reorg with parser
*/
public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2ParserATNSimulator<Symbol>> {
public abstract class BaseRecognizer extends Recognizer<Token, v2ParserATNSimulator<Token>> {
public static final String NEXT_TOKEN_RULE_NAME = "nextToken";
protected TokenStream _input;
/** The RuleContext object for the currently executing rule. This
* must be non-null during parsing, but is initially null.
* When somebody calls the start rule, this gets set to the
* root context.
*/
protected ParserRuleContext<Symbol> _ctx;
protected ParserRuleContext<Token> _ctx;
protected boolean buildParseTrees;
protected boolean traceATNStates;
@ -64,7 +65,7 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
* the parse or during tree walks later. Both could be done.
* Not intended for tree parsing but would work.
*/
protected ParseTreeListener<Symbol> _listener;
protected ParseTreeListener<Token> _listener;
/** Did the recognizer encounter a syntax error? Track how many. */
protected int syntaxErrors = 0;
@ -89,9 +90,9 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
* single token insertion or deletion error recovery. If
* that fails, throw MismatchedTokenException.
*/
public Symbol match(int ttype) throws RecognitionException {
public Token match(int ttype) throws RecognitionException {
// System.out.println("match "+((TokenStream)input).LT(1)+" vs expected "+ttype);
Symbol currentSymbol = getCurrentInputSymbol();
Token currentSymbol = getCurrentToken();
if ( getInputStream().LA(1)==ttype ) {
_errHandler.endErrorCondition(this);
consume();
@ -145,11 +146,11 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
return traceATNStates;
}
public ParseTreeListener<Symbol> getListener() {
public ParseTreeListener<Token> getListener() {
return _listener;
}
public void setListener(ParseTreeListener<Symbol> listener) {
public void setListener(ParseTreeListener<Token> listener) {
this._listener = listener;
}
@ -165,37 +166,48 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
}
@Override
public abstract SymbolStream<Symbol> getInputStream();
public TokenStream getInputStream() { return getTokenStream(); }
@Override
public final void setInputStream(IntStream input) {
setTokenStream((TokenStream)input);
}
public TokenStream getTokenStream() {
return _input;
}
/** Set the token stream and reset the parser */
public void setTokenStream(TokenStream input) {
this._input = null;
reset();
this._input = input;
}
public String getInputString(int start) {
return getInputString(start, getInputStream().index());
}
public String getInputString(int start, int stop) {
SymbolStream<Symbol> input = getInputStream();
SymbolStream<Token> input = getInputStream();
if ( input instanceof TokenStream ) {
return ((TokenStream)input).toString(start,stop);
}
else if ( input instanceof BufferedASTNodeStream ) {
return ((BufferedASTNodeStream<Symbol>)input).toString(input.get(start),input.get(stop));
}
return "n/a";
}
/** Match needs to return the current input symbol, which gets put
* into the label for the associated token ref; e.g., x=ID. Token
* and tree parsers need to return different objects. Rather than test
* for input stream type or change the IntStream interface, I use
* a simple method to ask the recognizer to tell me what the current
* input symbol is.
* into the label for the associated token ref; e.g., x=ID.
*/
public abstract Symbol getCurrentInputSymbol();
public void notifyListeners(String msg) {
notifyListeners(getCurrentInputSymbol(), msg, null);
public Token getCurrentToken() {
return _input.LT(1);
}
public void notifyListeners(Symbol offendingToken, String msg,
public void notifyListeners(String msg) {
notifyListeners(getCurrentToken(), msg, null);
}
public void notifyListeners(Token offendingToken, String msg,
@Nullable RecognitionException e)
{
int line = -1;
@ -204,17 +216,17 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
line = ((Token) offendingToken).getLine();
charPositionInLine = ((Token) offendingToken).getCharPositionInLine();
}
ANTLRErrorListener<Symbol>[] listeners = getListeners();
ANTLRErrorListener<Token>[] listeners = getListeners();
if ( listeners.length == 0 ) {
System.err.println("line "+line+":"+charPositionInLine+" "+msg);
return;
}
for (ANTLRErrorListener<Symbol> pl : listeners) {
for (ANTLRErrorListener<Token> pl : listeners) {
pl.error(this, offendingToken, line, charPositionInLine, msg, e);
}
}
public void enterOuterAlt(ParserRuleContext<Symbol> localctx, int altNum) {
public void enterOuterAlt(ParserRuleContext<Token> localctx, int altNum) {
// if we have new localctx, make sure we replace existing ctx
// that is previous child of parse tree
if ( buildParseTrees && _ctx != localctx ) {
@ -239,8 +251,8 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
*
* Trigger listener events if there's a listener.
*/
public Symbol consume() {
Symbol o = getCurrentInputSymbol();
public Token consume() {
Token o = getCurrentToken();
getInputStream().consume();
if ( buildParseTrees ) {
// TODO: tree parsers?
@ -262,22 +274,43 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
}
}
public abstract void enterRule(ParserRuleContext<Symbol> localctx, int ruleIndex);
public void exitRule(int ruleIndex) {
_ctx = (ParserRuleContext<Symbol>)_ctx.parent;
/** Always called by generated parsers upon entry to a rule.
* This occurs after the new context has been pushed. Access field
* _ctx get the current context.
*
* This is flexible because users do not have to regenerate parsers
* to get trace facilities.
*/
public void enterRule(ParserRuleContext<Token> localctx, int ruleIndex) {
_ctx = localctx;
_ctx.start = _input.LT(1);
_ctx.ruleIndex = ruleIndex;
if ( buildParseTrees ) addContextToParseTree();
if ( _listener != null) {
_listener.enterEveryRule(_ctx);
_ctx.enterRule(_listener);
}
}
public ParserRuleContext<Symbol> getInvokingContext(int ruleIndex) {
ParserRuleContext<Symbol> p = _ctx;
public void exitRule(int ruleIndex) {
// trigger event on _ctx, before it reverts to parent
if ( _listener != null) {
_ctx.exitRule(_listener);
_listener.exitEveryRule(_ctx);
}
_ctx = (ParserRuleContext<Token>)_ctx.parent;
}
public ParserRuleContext<Token> getInvokingContext(int ruleIndex) {
ParserRuleContext<Token> p = _ctx;
while ( p!=null ) {
if ( p.getRuleIndex() == ruleIndex ) return p;
p = (ParserRuleContext<Symbol>)p.parent;
p = (ParserRuleContext<Token>)p.parent;
}
return null;
}
public ParserRuleContext<Symbol> getContext() {
public ParserRuleContext<Token> getContext() {
return _ctx;
}
@ -409,7 +442,9 @@ public abstract class BaseRecognizer<Symbol> extends Recognizer<Symbol, v2Parser
}
}
public abstract String getSourceName();
public String getSourceName() {
return _input.getSourceName();
}
/** A convenience method for use most often with template rewrites.
* Convert a List<Token> to List<String>

88
runtime/Java/src/org/antlr/v4/runtime/DefaultErrorStrategy.java
View File

@ -34,12 +34,11 @@ import org.antlr.v4.runtime.dfa.DFA;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.misc.OrderedHashSet;
import org.antlr.v4.runtime.tree.AST;
/** This is the default error handling mechanism for ANTLR parsers
* and tree parsers.
*/
public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol> {
public class DefaultErrorStrategy implements ANTLRErrorStrategy {
/** This is true after we see an error and before having successfully
* matched a token. Prevents generation of more than one error message
* per error.
@ -57,24 +56,24 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
protected IntervalSet lastErrorStates;
@Override
public void beginErrorCondition(BaseRecognizer<Symbol> recognizer) {
public void beginErrorCondition(BaseRecognizer recognizer) {
errorRecoveryMode = true;
}
@Override
public boolean inErrorRecoveryMode(BaseRecognizer<Symbol> recognizer) {
public boolean inErrorRecoveryMode(BaseRecognizer recognizer) {
return errorRecoveryMode;
}
@Override
public void endErrorCondition(BaseRecognizer<Symbol> recognizer) {
public void endErrorCondition(BaseRecognizer recognizer) {
errorRecoveryMode = false;
lastErrorStates = null;
lastErrorIndex = -1;
}
@Override
public void reportError(BaseRecognizer<Symbol> recognizer,
public void reportError(BaseRecognizer recognizer,
RecognitionException e)
throws RecognitionException
{
@ -98,7 +97,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
else {
System.err.println("unknown recognition error type: "+e.getClass().getName());
if ( recognizer!=null ) {
recognizer.notifyListeners((Symbol)e.offendingNode, e.getMessage(), e);
recognizer.notifyListeners((Token)e.offendingToken, e.getMessage(), e);
}
}
}
@ -107,7 +106,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
* token that the match() routine could not recover from.
*/
@Override
public void recover(BaseRecognizer<Symbol> recognizer, RecognitionException e) {
public void recover(BaseRecognizer recognizer, RecognitionException e) {
// System.out.println("recover in "+recognizer.getRuleInvocationStack()+
// " index="+recognizer.getInputStream().index()+
// ", lastErrorIndex="+
@ -147,13 +146,13 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
* We opt to stay in the loop as long as possible.
*/
@Override
public void sync(BaseRecognizer<Symbol> recognizer) {
public void sync(BaseRecognizer recognizer) {
ATNState s = recognizer.getInterpreter().atn.states.get(recognizer._ctx.s);
// System.err.println("sync @ "+s.stateNumber+"="+s.getClass().getSimpleName());
// If already recovering, don't try to sync
if ( errorRecoveryMode ) return;
SymbolStream<Symbol> tokens = recognizer.getInputStream();
SymbolStream<Token> tokens = recognizer.getInputStream();
int la = tokens.LA(1);
// try cheaper subset first; might get lucky. seems to shave a wee bit off
@ -185,46 +184,47 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
// do nothing if we can't identify the exact kind of ATN state
}
public void reportNoViableAlternative(BaseRecognizer<Symbol> recognizer,
public void reportNoViableAlternative(BaseRecognizer recognizer,
NoViableAltException e)
throws RecognitionException
{
SymbolStream<Symbol> tokens = recognizer.getInputStream();
SymbolStream<Token> tokens = recognizer.getInputStream();
String input;
if (tokens instanceof TokenStream) {
if ( e.startToken.getType()==Token.EOF ) input = "<EOF>";
else input = ((TokenStream)tokens).toString(e.startToken, e.offendingToken);
} else {
}
else {
input = "<unknown input>";
}
String msg = "no viable alternative at input "+escapeWSAndQuote(input);
recognizer.notifyListeners((Symbol) e.offendingNode, msg, e);
recognizer.notifyListeners((Token) e.offendingToken, msg, e);
}
public void reportInputMismatch(BaseRecognizer<Symbol> recognizer,
public void reportInputMismatch(BaseRecognizer recognizer,
InputMismatchException e)
throws RecognitionException
{
String msg = "mismatched input "+getTokenErrorDisplay((Symbol)e.offendingNode)+
String msg = "mismatched input "+getTokenErrorDisplay((Token)e.offendingToken)+
" expecting "+e.getExpectedTokens().toString(recognizer.getTokenNames());
recognizer.notifyListeners((Symbol)e.offendingNode, msg, e);
recognizer.notifyListeners((Token)e.offendingToken, msg, e);
}
public void reportFailedPredicate(BaseRecognizer<Symbol> recognizer,
public void reportFailedPredicate(BaseRecognizer recognizer,
FailedPredicateException e)
throws RecognitionException
{
String ruleName = recognizer.getRuleNames()[recognizer._ctx.getRuleIndex()];
String msg = "rule "+ruleName+" "+e.msg;
recognizer.notifyListeners((Symbol)e.offendingNode, msg, e);
recognizer.notifyListeners((Token)e.offendingToken, msg, e);
}
public void reportUnwantedToken(BaseRecognizer<Symbol> recognizer) {
public void reportUnwantedToken(BaseRecognizer recognizer) {
if (errorRecoveryMode) return;
recognizer.syntaxErrors++;
beginErrorCondition(recognizer);
Symbol t = recognizer.getCurrentInputSymbol();
Token t = recognizer.getCurrentToken();
String tokenName = getTokenErrorDisplay(t);
IntervalSet expecting = getExpectedTokens(recognizer);
String msg = "extraneous input "+tokenName+" expecting "+
@ -232,12 +232,12 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
recognizer.notifyListeners(t, msg, null);
}
public void reportMissingToken(BaseRecognizer<Symbol> recognizer) {
public void reportMissingToken(BaseRecognizer recognizer) {
if (errorRecoveryMode) return;
recognizer.syntaxErrors++;
beginErrorCondition(recognizer);
Symbol t = recognizer.getCurrentInputSymbol();
Token t = recognizer.getCurrentToken();
IntervalSet expecting = getExpectedTokens(recognizer);
String msg = "missing "+expecting.toString(recognizer.getTokenNames())+
" at "+getTokenErrorDisplay(t);
@ -275,11 +275,11 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
* reference in rule atom. It can assume that you forgot the ')'.
*/
@Override
public Symbol recoverInline(BaseRecognizer<Symbol> recognizer)
public Token recoverInline(BaseRecognizer recognizer)
throws RecognitionException
{
// SINGLE TOKEN DELETION
Symbol matchedSymbol = singleTokenDeletion(recognizer);
Token matchedSymbol = singleTokenDeletion(recognizer);
if ( matchedSymbol!=null ) {
// we have deleted the extra token.
// now, move past ttype token as if all were ok
@ -297,7 +297,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
}
// if next token is what we are looking for then "delete" this token
public boolean singleTokenInsertion(BaseRecognizer<Symbol> recognizer) {
public boolean singleTokenInsertion(BaseRecognizer recognizer) {
int currentSymbolType = recognizer.getInputStream().LA(1);
// if current token is consistent with what could come after current
// ATN state, then we know we're missing a token; error recovery
@ -313,7 +313,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
return false;
}
public Symbol singleTokenDeletion(BaseRecognizer<Symbol> recognizer) {
public Token singleTokenDeletion(BaseRecognizer recognizer) {
int nextTokenType = recognizer.getInputStream().LA(2);
IntervalSet expecting = getExpectedTokens(recognizer);
if ( expecting.contains(nextTokenType) ) {
@ -326,7 +326,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
*/
recognizer.consume(); // simply delete extra token
// we want to return the token we're actually matching
Symbol matchedSymbol = recognizer.getCurrentInputSymbol();
Token matchedSymbol = recognizer.getCurrentToken();
endErrorCondition(recognizer); // we know current token is correct
return matchedSymbol;
}
@ -352,8 +352,8 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
* If you change what tokens must be created by the lexer,
* override this method to create the appropriate tokens.
*/
protected Symbol getMissingSymbol(BaseRecognizer<Symbol> recognizer) {
Symbol currentSymbol = recognizer.getCurrentInputSymbol();
protected Token getMissingSymbol(BaseRecognizer recognizer) {
Token currentSymbol = recognizer.getCurrentToken();
if (!(currentSymbol instanceof Token)) {
throw new UnsupportedOperationException("This error strategy only supports Token symbols.");
}
@ -373,10 +373,10 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
t.channel = Token.DEFAULT_CHANNEL;
t.source = current.getTokenSource();
t.index = -1; // indicate we conjured this up because it has no index
return (Symbol)t;
return (Token)t;
}
public IntervalSet getExpectedTokens(BaseRecognizer<Symbol> recognizer) {
public IntervalSet getExpectedTokens(BaseRecognizer recognizer) {
return recognizer.getExpectedTokens();
}
@ -388,7 +388,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
* your token objects because you don't have to go modify your lexer
* so that it creates a new Java type.
*/
public String getTokenErrorDisplay(Symbol t) {
public String getTokenErrorDisplay(Token t) {
if ( t==null ) return "<no token>";
String s = getSymbolText(t);
if ( s==null ) {
@ -402,25 +402,19 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
return escapeWSAndQuote(s);
}
protected String getSymbolText(@NotNull Symbol symbol) {
protected String getSymbolText(@NotNull Token symbol) {
if (symbol instanceof Token) {
return ((Token)symbol).getText();
}
else if (symbol instanceof AST) {
return ((AST)symbol).getText();
}
else {
return symbol.toString();
}
}
protected int getSymbolType(@NotNull Symbol symbol) {
protected int getSymbolType(@NotNull Token symbol) {
if (symbol instanceof Token) {
return ((Token)symbol).getType();
}
else if (symbol instanceof AST) {
return ((AST)symbol).getType();
}
else {
return Token.INVALID_TYPE;
}
@ -526,7 +520,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
* Like Grosch I implement context-sensitive FOLLOW sets that are combined
* at run-time upon error to avoid overhead during parsing.
*/
protected IntervalSet getErrorRecoverySet(BaseRecognizer<Symbol> recognizer) {
protected IntervalSet getErrorRecoverySet(BaseRecognizer recognizer) {
ATN atn = recognizer.getInterpreter().atn;
RuleContext ctx = recognizer._ctx;
IntervalSet recoverSet = new IntervalSet();
@ -544,7 +538,7 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
}
/** Consume tokens until one matches the given token set */
public void consumeUntil(BaseRecognizer<Symbol> recognizer, IntervalSet set) {
public void consumeUntil(BaseRecognizer recognizer, IntervalSet set) {
// System.err.println("consumeUntil("+set.toString(recognizer.getTokenNames())+")");
int ttype = recognizer.getInputStream().LA(1);
while (ttype != Token.EOF && !set.contains(ttype) ) {
@ -556,14 +550,14 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
}
@Override
public void reportAmbiguity(@NotNull BaseRecognizer<Symbol> recognizer,
public void reportAmbiguity(@NotNull BaseRecognizer recognizer,
DFA dfa, int startIndex, int stopIndex, @NotNull IntervalSet ambigAlts,
@NotNull OrderedHashSet<ATNConfig> configs)
{
}
@Override
public void reportAttemptingFullContext(@NotNull BaseRecognizer<Symbol> recognizer,
public void reportAttemptingFullContext(@NotNull BaseRecognizer recognizer,
@NotNull DFA dfa,
int startIndex, int stopIndex,
@NotNull OrderedHashSet<ATNConfig> configs)
@ -571,13 +565,13 @@ public class DefaultErrorStrategy<Symbol> implements ANTLRErrorStrategy<Symbol>
}
@Override
public void reportContextSensitivity(@NotNull BaseRecognizer<Symbol> recognizer, @NotNull DFA dfa,
public void reportContextSensitivity(@NotNull BaseRecognizer recognizer, @NotNull DFA dfa,
int startIndex, int stopIndex, @NotNull OrderedHashSet<ATNConfig> configs)
{
}
@Override
public void reportInsufficientPredicates(@NotNull BaseRecognizer<Symbol> recognizer,
public void reportInsufficientPredicates(@NotNull BaseRecognizer recognizer,
@NotNull DFA dfa,
int startIndex, int stopIndex,
@NotNull IntervalSet ambigAlts,

139
runtime/Java/src/org/antlr/v4/runtime/DefaultTreeGrammarErrorStrategy.java
View File

@ -1,139 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime;
import org.antlr.v4.runtime.tree.*;
import org.antlr.v4.runtime.tree.gui.TreeViewer;
import java.util.*;
public class DefaultTreeGrammarErrorStrategy<T> extends DefaultErrorStrategy<T> {
@Override
public void beginErrorCondition(BaseRecognizer<T> recognizer) {
}
@Override
public void reportError(BaseRecognizer<T> recognizer, RecognitionException e)
throws RecognitionException
{
super.reportError(recognizer, e);
TreeParser<T> parser = (TreeParser<T>)recognizer;
ASTNodeStream<T> input = parser.getInputStream();
Object root = input.getTreeSource();
// If instanceof Tree, we can show in TreeViewer
if ( root instanceof Tree ) {
TreeViewer viewer = new TreeViewer(recognizer, (Tree)root);
viewer.open();
List<T> unmatchedNodes = null;
if ( e instanceof NoViableTreeGrammarAltException ) {
NoViableTreeGrammarAltException nva =
(NoViableTreeGrammarAltException)e;
unmatchedNodes = getNodeList(input, nva);
}
else {
unmatchedNodes = new ArrayList<T>();
unmatchedNodes.add((T)e.offendingNode);
}
viewer.setHighlightedBoxColor(TreeViewer.LIGHT_RED);
viewer.addHighlightedNodes((List<Tree>)unmatchedNodes);
}
}
@Override
public void reportNoViableAlternative(BaseRecognizer<T> recognizer,
NoViableAltException e)
throws RecognitionException
{
TreeParser<T> parser = (TreeParser<T>)recognizer;
ASTNodeStream<T> input = parser.getInputStream();
List<T> unmatchedNodes =
getNodeList(input, (NoViableTreeGrammarAltException)e);
StringBuilder buf = new StringBuilder();
ASTAdaptor<T> adap = input.getTreeAdaptor();
for (int i = 0; i < unmatchedNodes.size(); i++) {
if ( i>0 ) buf.append(" ");
T t = unmatchedNodes.get(i);
buf.append(adap.getText(t));
}
String s = buf.toString();
String msg = "no viable alternative at node(s) "+escapeWSAndQuote(s);
recognizer.notifyListeners((T)e.offendingNode, msg, e);
}
protected List<T> getNodeList(ASTNodeStream<T> input,
NoViableTreeGrammarAltException nva)
{
List<T> unmatchedNodes;
T start = (T)nva.startNode;
T stop = (T)nva.offendingNode;
if ( input instanceof BufferedASTNodeStream) {
BufferedASTNodeStream<T> b =
(BufferedASTNodeStream<T>)input;
unmatchedNodes = b.get(start, stop);
}
else {
// if not buffered then we can't get from start to stop;
// just highlight the start/stop nodes, but not in between
unmatchedNodes = new ArrayList<T>();
if ( nva.startNode!=null ) {
unmatchedNodes.add((T)nva.startNode);
}
if ( nva.startNode==null || nva.offendingNode!=nva.startNode ) {
unmatchedNodes.add((T)nva.offendingNode);
}
}
return unmatchedNodes;
}
@Override
public T recoverInline(BaseRecognizer<T> recognizer) throws RecognitionException {
InputMismatchException e = new InputMismatchException(recognizer);
reportError(recognizer, e);
throw e;
}
@Override
public void recover(BaseRecognizer<T> recognizer, RecognitionException e) {
throw new RuntimeException(e);
}
@Override
public void sync(BaseRecognizer<T> recognizer) {
}
@Override
public boolean inErrorRecoveryMode(BaseRecognizer<T> recognizer) {
return false;
}
@Override
public void endErrorCondition(BaseRecognizer<T> recognizer) {
}
}

10
runtime/Java/src/org/antlr/v4/runtime/DiagnosticErrorStrategy.java
View File

@ -39,9 +39,9 @@ import org.antlr.v4.runtime.misc.OrderedHashSet;
import java.util.Arrays;
public class DiagnosticErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol> {
public class DiagnosticErrorStrategy extends DefaultErrorStrategy {
@Override
public void reportAmbiguity(@NotNull BaseRecognizer<Symbol> recognizer,
public void reportAmbiguity(@NotNull BaseRecognizer recognizer,
DFA dfa, int startIndex, int stopIndex, @NotNull IntervalSet ambigAlts,
@NotNull OrderedHashSet<ATNConfig> configs)
{
@ -50,7 +50,7 @@ public class DiagnosticErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol
}
@Override
public void reportAttemptingFullContext(@NotNull BaseRecognizer<Symbol> recognizer,
public void reportAttemptingFullContext(@NotNull BaseRecognizer recognizer,
@NotNull DFA dfa,
int startIndex, int stopIndex,
@NotNull OrderedHashSet<ATNConfig> configs)
@ -60,7 +60,7 @@ public class DiagnosticErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol
}
@Override
public void reportContextSensitivity(@NotNull BaseRecognizer<Symbol> recognizer, @NotNull DFA dfa,
public void reportContextSensitivity(@NotNull BaseRecognizer recognizer, @NotNull DFA dfa,
int startIndex, int stopIndex, @NotNull OrderedHashSet<ATNConfig> configs)
{
recognizer.notifyListeners("reportContextSensitivity d="+dfa.decision +": "+ configs + ", input='" +
@ -68,7 +68,7 @@ public class DiagnosticErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol
}
@Override
public void reportInsufficientPredicates(@NotNull BaseRecognizer<Symbol> recognizer,
public void reportInsufficientPredicates(@NotNull BaseRecognizer recognizer,
@NotNull DFA dfa,
int startIndex, int stopIndex,
@NotNull IntervalSet ambigAlts,

18
runtime/Java/src/org/antlr/v4/runtime/FailedPredicateException.java
View File

@ -28,9 +28,9 @@
*/
package org.antlr.v4.runtime;
import org.antlr.v4.runtime.atn.ATNState;
import org.antlr.v4.runtime.atn.PredicateTransition;
import org.antlr.v4.runtime.misc.Nullable;
import org.antlr.v4.runtime.atn.*;
import org.antlr.v4.runtime.tree.AST;
/** A semantic predicate failed during validation. Validation of predicates
* occurs when normally parsing the alternative just like matching a token.
@ -42,24 +42,18 @@ public class FailedPredicateException extends RecognitionException {
public int predIndex;
public String msg;
public FailedPredicateException(BaseRecognizer<?> recognizer) {
public FailedPredicateException(BaseRecognizer recognizer) {
this(recognizer, null);
}
public FailedPredicateException(BaseRecognizer<?> recognizer, @Nullable String msg) {
public FailedPredicateException(BaseRecognizer recognizer, @Nullable String msg) {
super(recognizer, recognizer.getInputStream(), recognizer._ctx);
ATNState s = recognizer.getInterpreter().atn.states.get(recognizer._ctx.s);
PredicateTransition trans = (PredicateTransition)s.transition(0);
ruleIndex = trans.ruleIndex;
predIndex = trans.predIndex;
this.msg = msg;
Object la = recognizer.getCurrentInputSymbol();
this.offendingNode = la;
if ( la instanceof AST) {
this.offendingToken = ((AST)la).getPayload();
}
else {
this.offendingToken = (Token)la;
}
Token la = recognizer.getCurrentToken();
this.offendingToken = la;
}
}

14
runtime/Java/src/org/antlr/v4/runtime/InputMismatchException.java
View File

@ -1,20 +1,12 @@
package org.antlr.v4.runtime;
import org.antlr.v4.runtime.tree.AST;
/** This signifies any kind of mismatched input exceptions such as
* when the current input does not match the expected token or tree node.
*/
public class InputMismatchException extends RecognitionException {
public InputMismatchException(BaseRecognizer<?> recognizer) {
public InputMismatchException(BaseRecognizer recognizer) {
super(recognizer, recognizer.getInputStream(), recognizer._ctx);
Object la = recognizer.getCurrentInputSymbol();
this.offendingNode = la;
if ( la instanceof AST ) {
this.offendingToken = ((AST)la).getPayload();
}
else {
this.offendingToken = (Token)la;
}
Token la = recognizer.getCurrentToken();
this.offendingToken = la;
}
}

11
runtime/Java/src/org/antlr/v4/runtime/NoViableAltException.java
View File

@ -45,27 +45,24 @@ public class NoViableAltException extends RecognitionException {
*/
public Token startToken;
public <Symbol extends Token> NoViableAltException(BaseRecognizer<Symbol> recognizer) { // LL(1) error
public <Symbol extends Token> NoViableAltException(BaseRecognizer recognizer) { // LL(1) error
this(recognizer,recognizer.getInputStream(),
recognizer.getCurrentInputSymbol(),
recognizer.getCurrentInputSymbol(),
recognizer.getCurrentInputSymbol(),
recognizer.getCurrentToken(),
recognizer.getCurrentToken(),
null,
recognizer._ctx);
}
public <Symbol> NoViableAltException(BaseRecognizer<Symbol> recognizer,
public <Symbol> NoViableAltException(BaseRecognizer recognizer,
SymbolStream<Symbol> input,
Token startToken,
Token offendingToken,
Symbol offendingNode,
OrderedHashSet<ATNConfig> deadEndConfigs,
ParserRuleContext ctx)
{
super(recognizer, input, ctx);
this.deadEndConfigs = deadEndConfigs;
this.startToken = startToken;
this.offendingNode = offendingNode;
this.offendingToken = offendingToken;
}
}

62
runtime/Java/src/org/antlr/v4/runtime/NoViableTreeGrammarAltException.java
View File

@ -1,62 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime;
import org.antlr.v4.runtime.atn.ATNConfig;
import org.antlr.v4.runtime.misc.OrderedHashSet;
import org.antlr.v4.runtime.tree.ASTNodeStream;
import org.antlr.v4.runtime.tree.TreeParser;
public class NoViableTreeGrammarAltException extends NoViableAltException {
protected Object startNode;
public <Symbol> NoViableTreeGrammarAltException(TreeParser<Symbol> recognizer) {
this(recognizer,
recognizer.getInputStream(),
recognizer.getCurrentInputSymbol(),
recognizer.getCurrentInputSymbol(),
null,
recognizer._ctx);
}
public <Symbol> NoViableTreeGrammarAltException(BaseRecognizer<Symbol> recognizer,
ASTNodeStream<Symbol> input,
Symbol startNode,
Symbol offendingNode,
OrderedHashSet<ATNConfig> deadEndConfigs,
ParserRuleContext ctx) {
super(recognizer, input,
input.getTreeAdaptor().getToken(startNode),
input.getTreeAdaptor().getToken(offendingNode),
offendingNode,
deadEndConfigs, ctx);
this.startNode = startNode;
}
}

62
runtime/Java/src/org/antlr/v4/runtime/Parser.java
View File

@ -32,71 +32,11 @@ package org.antlr.v4.runtime;
/** A parser for TokenStreams. "parser grammars" result in a subclass
* of this.
*/
public class Parser extends BaseRecognizer<Token> {
protected TokenStream _input;
public class Parser extends BaseRecognizer {
public Parser(TokenStream input) {
super(input);
}
/** Always called by generated parsers upon entry to a rule.
* This occurs after the new context has been pushed. Access field
* _ctx get the current context.
*
* This is flexible because users do not have to regenerate parsers
* to get trace facilities.
*/
@Override
public void enterRule(ParserRuleContext<Token> localctx, int ruleIndex) {
_ctx = localctx;
_ctx.start = _input.LT(1);
_ctx.ruleIndex = ruleIndex;
if ( buildParseTrees ) addContextToParseTree();
if ( _listener != null) {
_listener.enterEveryRule(_ctx);
_ctx.enterRule(_listener);
}
}
@Override
public void exitRule(int ruleIndex) {
// trigger event on _ctx, before it reverts to parent
if ( _listener != null) {
_ctx.exitRule(_listener);
_listener.exitEveryRule(_ctx);
}
super.exitRule(ruleIndex);
}
@Override
public Token match(int ttype) throws RecognitionException {
return super.match(ttype);
}
@Override
public Token getCurrentInputSymbol() {
return _input.LT(1);
}
@Override
public TokenStream getInputStream() { return _input; }
@Override
public final void setInputStream(IntStream input) {
setTokenStream((TokenStream)input);
}
/** Set the token stream and reset the parser */
public void setTokenStream(TokenStream input) {
this._input = null;
reset();
this._input = input;
}
public TokenStream getTokenStream() {
return _input;
}
@Override
public String getSourceName() {
return _input.getSourceName();

2
runtime/Java/src/org/antlr/v4/runtime/ParserRuleContext.java
View File

@ -220,7 +220,7 @@ public class ParserRuleContext<Symbol> extends RuleContext {
}
/** Used for rule context info debugging during runtime, not so much for ATN debugging */
public String toInfoString(BaseRecognizer<Symbol> recognizer) {
public String toInfoString(BaseRecognizer recognizer) {
List<String> rules = recognizer.getRuleInvocationStack();
Collections.reverse(rules);
return "ParserRuleContext"+rules+"{" +

21
runtime/Java/src/org/antlr/v4/runtime/RecognitionException.java
View File

@ -58,11 +58,6 @@ public class RecognitionException extends RuntimeException {
*/
protected Token offendingToken;
/** If this is a tree parser exception, node is set to the node with
* the problem.
*/
protected Object offendingNode;
protected int offendingState;
public RecognitionException(@Nullable Recognizer<?, ?> recognizer, IntStream input,
@ -84,7 +79,7 @@ public class RecognitionException extends RuntimeException {
public IntervalSet getExpectedTokens() {
// TODO: do we really need this type check?
if ( recognizer!=null && recognizer instanceof BaseRecognizer<?> ) {
if ( recognizer!=null && recognizer instanceof BaseRecognizer ) {
return ((BaseRecognizer) recognizer).getExpectedTokens();
}
return null;
@ -105,18 +100,4 @@ public class RecognitionException extends RuntimeException {
public Recognizer<?, ?> getRecognizer() {
return recognizer;
}
// /** Return the token type or char of the unexpected input element */
// public int getUnexpectedType() {
// if ( recognizer==null ) return offendingToken.getType();
// if ( recognizer.getInputStream() instanceof TokenStream) {
// return offendingToken.getType();
// }
// else if ( recognizer.getInputStream() instanceof ASTNodeStream) {
// ASTNodeStream nodes = (ASTNodeStream)recognizer.getInputStream();
// ASTAdaptor adaptor = nodes.getTreeAdaptor();
// return adaptor.getType(offendingNode);
// }
// return Token.INVALID_TYPE;
// }
}

6
runtime/Java/src/org/antlr/v4/runtime/Recognizer.java
View File

@ -41,7 +41,7 @@ import java.util.List;
public abstract class Recognizer<Symbol, ATNInterpreter extends ATNSimulator> {
public static final int EOF=-1;
protected ANTLRErrorStrategy<Symbol> _errHandler = new DefaultErrorStrategy<Symbol>();
protected ANTLRErrorStrategy _errHandler = new DefaultErrorStrategy();
private List<ANTLRErrorListener<Symbol>> _listeners;
@ -117,9 +117,9 @@ public abstract class Recognizer<Symbol, ATNInterpreter extends ATNSimulator> {
return _listeners.toArray(EMPTY_LISTENERS);
}
public ANTLRErrorStrategy<Symbol> getErrorHandler() { return _errHandler; }
public ANTLRErrorStrategy getErrorHandler() { return _errHandler; }
public void setErrorHandler(ANTLRErrorStrategy<Symbol> h) { this._errHandler = h; }
public void setErrorHandler(ANTLRErrorStrategy h) { this._errHandler = h; }
// subclass needs to override these if there are sempreds or actions
// that the ATN interp needs to execute

8
runtime/Java/src/org/antlr/v4/runtime/RuleContext.java
View File

@ -255,18 +255,18 @@ public class RuleContext implements ParseTree.RuleNode {
return new Interval(start, stop);
}
public void inspect(BaseRecognizer<?> parser) {
public void inspect(BaseRecognizer parser) {
TreeViewer viewer = new TreeViewer(parser, this);
viewer.open();
}
public void save(BaseRecognizer<?> parser, String fileName)
public void save(BaseRecognizer parser, String fileName)
throws IOException, PrintException
{
Trees.writePS(this, parser, fileName);
}
public void save(BaseRecognizer<?> parser, String fileName,
public void save(BaseRecognizer parser, String fileName,
String fontName, int fontSize)
throws IOException
{
@ -277,7 +277,7 @@ public class RuleContext implements ParseTree.RuleNode {
* (root child1 .. childN). Print just a node if this is a leaf.
* We have to know the recognizer so we can get rule names.
*/
public String toStringTree(BaseRecognizer<?> recog) {
public String toStringTree(BaseRecognizer recog) {
return Trees.toStringTree(this, recog);
}

4
runtime/Java/src/org/antlr/v4/runtime/Token.java
View File

@ -87,8 +87,8 @@ public interface Token {
int getChannel();
/** An index from 0..n-1 of the token object in the input stream.
* This must be valid in order to print token streams,
* use TokenRewriteStream, and generally deal with ASTs.
* This must be valid in order to print token streams and
* use TokenRewriteStream.
*
* Return -1 to indicate that this token was conjured up since
* it doesn't have a valid index.

35
runtime/Java/src/org/antlr/v4/runtime/atn/v2ParserATNSimulator.java
View File

@ -35,9 +35,6 @@ import org.antlr.v4.runtime.dfa.DFAState;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.misc.Nullable;
import org.antlr.v4.runtime.tree.ASTNodeStream;
import org.antlr.v4.runtime.tree.BufferedASTNodeStream;
import org.antlr.v4.runtime.tree.TreeParser;
import org.stringtemplate.v4.misc.MultiMap;
import java.util.*;
@ -239,7 +236,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
public static int retry_with_context_indicates_no_conflict = 0;
@Nullable
protected final BaseRecognizer<Symbol> parser;
protected final BaseRecognizer parser;
@NotNull
public final DFA[] decisionToDFA;
@ -249,7 +246,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
this(null, atn);
}
public v2ParserATNSimulator(@Nullable BaseRecognizer<Symbol> parser, @NotNull ATN atn) {
public v2ParserATNSimulator(@Nullable BaseRecognizer parser, @NotNull ATN atn) {
super(atn);
this.parser = parser;
// ctxToDFAs = new HashMap<RuleContext, DFA[]>();
@ -264,7 +261,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
public void reset() {
}
public int adaptivePredict(@NotNull SymbolStream<Symbol> input, int decision,
public int adaptivePredict(@NotNull SymbolStream<Token> input, int decision,
@Nullable ParserRuleContext outerContext)
{
predict_calls++;
@ -291,7 +288,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
}
}
public int predictATN(@NotNull DFA dfa, @NotNull SymbolStream<Symbol> input,
public int predictATN(@NotNull DFA dfa, @NotNull SymbolStream<Token> input,
@Nullable ParserRuleContext outerContext)
{
if ( outerContext==null ) outerContext = ParserRuleContext.EMPTY;
@ -323,7 +320,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
}
public int execDFA(@NotNull DFA dfa, @NotNull DFAState s0,
@NotNull SymbolStream<Symbol> input, int startIndex,
@NotNull SymbolStream<Token> input, int startIndex,
@Nullable ParserRuleContext outerContext)
{
if ( outerContext==null ) outerContext = ParserRuleContext.EMPTY;
@ -476,7 +473,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
*/
public int execATN(@NotNull DFA dfa, @NotNull DFAState s0,
@NotNull SymbolStream<Symbol> input, int startIndex,
@NotNull SymbolStream<Token> input, int startIndex,
ParserRuleContext outerContext)
{
if ( debug ) System.out.println("execATN decision "+dfa.decision+" exec LA(1)=="+ getLookaheadName(input));
@ -597,7 +594,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
public ATNConfigSet execATNWithFullContext(DFA dfa,
DFAState D, // how far we got before failing over
@NotNull ATNConfigSet s0,
@NotNull SymbolStream<Symbol> input, int startIndex,
@NotNull SymbolStream<Token> input, int startIndex,
ParserRuleContext outerContext,
int nalts,
boolean greedy)
@ -1219,7 +1216,7 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
return String.valueOf(t);
}
public String getLookaheadName(SymbolStream<Symbol> input) {
public String getLookaheadName(SymbolStream<Token> input) {
return getTokenName(input.LA(1));
}
@ -1244,30 +1241,16 @@ public class v2ParserATNSimulator<Symbol> extends ATNSimulator {
}
@NotNull
public NoViableAltException noViableAlt(@NotNull SymbolStream<Symbol> input,
public NoViableAltException noViableAlt(@NotNull SymbolStream<Token> input,
@NotNull ParserRuleContext outerContext,
@NotNull ATNConfigSet configs,
int startIndex)
{
if ( parser instanceof TreeParser) {
Symbol startNode = null;
if ( input instanceof BufferedASTNodeStream) {
startNode = input.get(startIndex);
}
return new NoViableTreeGrammarAltException(parser,
(ASTNodeStream<Symbol>)input,
startNode,
input.LT(1),
configs, outerContext);
}
else {
return new NoViableAltException(parser, input,
(Token)input.get(startIndex),
(Token)input.LT(1),
input.LT(1),
configs, outerContext);
}
}
public static int getUniqueAlt(@NotNull Collection<ATNConfig> configs) {
int alt = ATN.INVALID_ALT_NUMBER;

30
runtime/Java/src/org/antlr/v4/runtime/misc/TestRig.java
View File

@ -33,6 +33,8 @@ import org.antlr.v4.runtime.*;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
@ -50,8 +52,9 @@ public class TestRig {
boolean gui = false;
String psFile = null;
boolean showTokens = false;
String encoding = null;
if ( args.length < 2 ) {
System.err.println("java org.antlr.v4.runtime.misc.TestRig GrammarName startRuleName [-print] [-tokens] [-gui] [-ps file.ps] [input-filename]");
System.err.println("java org.antlr.v4.runtime.misc.TestRig GrammarName startRuleName [-print] [-tokens] [-gui] [-encoding encodingname] [-ps file.ps] [input-filename]");
return;
}
int i=0;
@ -75,6 +78,14 @@ public class TestRig {
if ( arg.equals("-tokens") ) {
showTokens = true;
}
else if ( arg.equals("-encoding") ) {
if ( i>=args.length ) {
System.err.println("missing encoding on -encoding");
return;
}
encoding = args[i];
i++;
}
else if ( arg.equals("-ps") ) {
if ( i>=args.length ) {
System.err.println("missing filename on -ps");
@ -101,8 +112,16 @@ public class TestRig {
if ( inputFile!=null ) {
is = new FileInputStream(inputFile);
}
Reader r;
if ( encoding!=null ) {
r = new InputStreamReader(is, encoding);
}
else {
r = new InputStreamReader(is);
}
ANTLRInputStream input = new ANTLRInputStream(is);
try {
ANTLRInputStream input = new ANTLRInputStream(r);
Constructor<Lexer> lexerCtor = lexerClass.getConstructor(CharStream.class);
Lexer lexer = lexerCtor.newInstance(input);
@ -118,7 +137,7 @@ public class TestRig {
Constructor<Parser> parserCtor = parserClass.getConstructor(TokenStream.class);
Parser parser = parserCtor.newInstance(tokens);
parser.setErrorHandler(new DiagnosticErrorStrategy<Token>());
parser.setErrorHandler(new DiagnosticErrorStrategy());
if ( printTree || gui || psFile!=null ) {
parser.setBuildParseTree(true);
@ -137,4 +156,9 @@ public class TestRig {
tree.save(parser, psFile); // Generate postscript
}
}
finally {
if ( r!=null ) r.close();
if ( is!=null ) is.close();
}
}
}

60
runtime/Java/src/org/antlr/v4/runtime/tree/AST.java
View File

@ -1,60 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.Token;
/** An abstract syntax tree built by ANTLR during a parse. */
public interface AST extends SyntaxTree {
/** Indicates the node is a nil node but may still have children, meaning
* the tree is a flat list.
*/
boolean isNil();
/** Return a token type; needed for tree parsing */
int getType();
/** Text for this node alone, not the subtree */
String getText();
// TODO: do we need line/charpos????
/** In case we don't have a token payload, what is the line for errors? */
int getLine();
int getCharPositionInLine();
/** Redefined from Tree interface so we can narrow the return type */
@Override
AST getParent();
/** Redefined from Tree interface so we can narrow the return type */
@Override
Token getPayload();
}

262
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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.Token;
import java.util.List;
/** How to create and navigate trees. Rather than have a separate factory
* and adaptor, I've merged them. Makes sense to encapsulate.
*
* I do not need to know the type of a tree at all so they are all
* generic Objects.
*/
public interface ASTAdaptor<T> {
// BEGIN new v4 stuff
/** Used to track elements to left of -> for use in rewrite. These
* are some kind of trees, but we generically use Object
* for tree types in ANTLR.
*/
public List<T> createElementList();
/** Get the absolute index starting from 0 of this note within
* a node stream. This should w
ork even if the stream is not buffered
*/
// public int getNodeIndex(T t);
// END new v4 stuff
// C o n s t r u c t i o n
/** Create a tree node from Token object; for CommonAST type trees,
* then the token just becomes the payload. This is the most
* common create call.
*
* Override if you want another kind of node to be built.
*/
public T create(Token payload);
/** Duplicate a single tree node.
* Override if you want another kind of node to be built.
*/
public T dupNode(T treeNode);
/** Duplicate tree recursively, using dupNode() for each node */
public T dupTree(T tree);
/** Return a nil node (an empty but non-null node) that can hold
* a list of element as the children. If you want a flat tree (a list)
* use "t=adaptor.nil(); t.addChild(x); t.addChild(y);"
*/
public T nil();
/** Is tree considered a nil node used to make lists of child nodes? */
public boolean isNil(T tree);
/** Add a child to the tree t. If child is a flat tree (a list), make all
* in list children of t. Warning: if t has no children, but child does
* and child isNil then you can decide it is ok to move children to t via
* t.children = child.children; i.e., without copying the array. Just
* make sure that this is consistent with have the user will build
* ASTs. Do nothing if t or child is null.
*/
public void addChild(T t, T child);
/** If oldRoot is a nil root, just copy or move the children to newRoot.
* If not a nil root, make oldRoot a child of newRoot.
*
* old=^(nil a b c), new=r yields ^(r a b c)
* old=^(a b c), new=r yields ^(r ^(a b c))
*
* If newRoot is a nil-rooted single child tree, use the single
* child as the new root node.
*
* old=^(nil a b c), new=^(nil r) yields ^(r a b c)
* old=^(a b c), new=^(nil r) yields ^(r ^(a b c))
*
* If oldRoot was null, it's ok, just return newRoot (even if isNil).
*
* old=null, new=r yields r
* old=null, new=^(nil r) yields ^(nil r)
*
* Return newRoot. Throw an exception if newRoot is not a
* simple node or nil root with a single child node--it must be a root
* node. If newRoot is ^(nil x) return x as newRoot.
*
* Be advised that it's ok for newRoot to point at oldRoot's
* children; i.e., you don't have to copy the list. We are
* constructing these nodes so we should have this control for
* efficiency.
*/
public T becomeRoot(T newRoot, T oldRoot);
/** Given the root of the subtree created for this rule, post process
* it to do any simplifications or whatever you want. A required
* behavior is to convert ^(nil singleSubtree) to singleSubtree
* as the setting of start/stop indexes relies on a single non-nil root
* for non-flat trees.
*
* Flat trees such as for lists like "idlist : ID+ ;" are left alone
* unless there is only one ID. For a list, the start/stop indexes
* are set in the nil node.
*
* This method is executed after all rule tree construction and right
* before setTokenBoundaries().
*/
public T rulePostProcessing(T root);
/** For identifying trees.
*
* How to identify nodes so we can say "add node to a prior node"?
* Even becomeRoot is an issue. Use System.identityHashCode(node)
* usually.
*/
public int getUniqueID(T node);
// R e w r i t e R u l e s
/** Create a node for newRoot make it the root of oldRoot.
* If oldRoot is a nil root, just copy or move the children to newRoot.
* If not a nil root, make oldRoot a child of newRoot.
*
* Return node created for newRoot.
*
* Be advised: when debugging ASTs, the DebugTreeAdaptor manually
* calls create(Token child) and then plain becomeRoot(node, node)
* because it needs to trap calls to create, but it can't since it delegates
* to not inherits from the ASTAdaptor.
*/
public T becomeRoot(Token newRoot, T oldRoot);
/** Create a new node derived from a token, with a new token type.
* This is invoked from an imaginary node ref on right side of a
* rewrite rule as IMAG[$tokenLabel].
*
* This should invoke createToken(Token).
*/
public T create(int tokenType, Token fromToken);
/** Same as create(tokenType,fromToken) except set the text too.
* This is invoked from an imaginary node ref on right side of a
* rewrite rule as IMAG[$tokenLabel, "IMAG"].
*
* This should invoke createToken(Token).
*/
public T create(int tokenType, Token fromToken, String text);
/** Create a new node derived from a token, with a new token type.
* This is invoked from an imaginary node ref on right side of a
* rewrite rule as IMAG["IMAG"].
*
* This should invoke createToken(int,String).
*/
public T create(int tokenType, String text);
// C o n t e n t
/** For tree parsing, I need to know the token type of a node */
public int getType(T t);
/** Node constructors can set the type of a node */
public void setType(T t, int type);
public String getText(T t);
/** Node constructors can set the text of a node */
public void setText(T t, String text);
/** Return the token object from which this node was created.
* Currently used only for printing an error message.
* The error display routine in BaseRecognizer needs to
* display where the input the error occurred. If your
* tree of limitation does not store information that can
* lead you to the token, you can create a token filled with
* the appropriate information and pass that back. See
* BaseRecognizer.getErrorMessage().
*/
public Token getToken(T t);
/** Where are the bounds in the input token stream for this node and
* all children? Each rule that creates AST nodes will call this
* method right before returning. Flat trees (i.e., lists) will
* still usually have a nil root node just to hold the children list.
* That node would contain the start/stop indexes then.
*/
public void setTokenBoundaries(T t, Token startToken, Token stopToken);
/** Get the token start index for this subtree; return -1 if no such index */
public int getTokenStartIndex(T t);
/** Get the token stop index for this subtree; return -1 if no such index */
public int getTokenStopIndex(T t);
// N a v i g a t i o n / T r e e P a r s i n g
/** Get a child 0..n-1 node */
public T getChild(T t, int i);
/** Set ith child (0..n-1) to t; t must be non-null and non-nil node */
public void setChild(T t, int i, T child);
/** Remove ith child and shift children down from right. */
public T deleteChild(T t, int i);
/** How many children? If 0, then this is a leaf node */
public int getChildCount(T t);
/** Who is the parent node of this node; if null, implies node is root.
* If your node type doesn't handle this, it's ok but the tree rewrites
* in tree parsers need this functionality.
*/
public T getParent(T t);
public void setParent(T t, T parent);
/** What index is this node in the child list? Range: 0..n-1
* If your node type doesn't handle this, it's ok but the tree rewrites
* in tree parsers need this functionality.
*/
public int getChildIndex(T t);
public void setChildIndex(T t, int index);
/** Replace from start to stop child index of parent with t, which might
* be a list. Number of children may be different
* after this call.
*
* If parent is null, don't do anything; must be at root of overall tree.
* Can't replace whatever points to the parent externally. Do nothing.
*/
public void replaceChildren(T parent, int startChildIndex, int stopChildIndex, T t);
}

34
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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
public interface ASTContext<T> {
T getTree();
}

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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.FastQueue;
import java.util.Iterator;
/** Return a node stream from a doubly-linked tree whose nodes
* know what child index they are. No remove() is supported.
*
* Emit navigation nodes (DOWN, UP, and EOF) to let show tree structure.
*/
public class ASTIterator<T> implements Iterator<T> {
protected ASTAdaptor<T> adaptor;
protected T root;
protected T tree;
protected boolean firstTime = true;
// navigation nodes to return during walk and at end
public T up;
public T down;
public T eof;
/** If we emit UP/DOWN nodes, we need to spit out multiple nodes per
* next() call.
*/
protected FastQueue<T> nodes;
public ASTIterator(T tree) {
this((tree instanceof CommonAST) ? (ASTAdaptor<T>)new CommonASTAdaptor() : null,
tree);
}
public ASTIterator(ASTAdaptor<T> adaptor, T tree) {
this.adaptor = adaptor;
this.tree = tree;
this.root = tree;
nodes = new FastQueue<T>();
if ( adaptor!=null ) {
down = adaptor.create(Token.DOWN, "DOWN");
up = adaptor.create(Token.UP, "UP");
eof = adaptor.create(Token.EOF, "EOF");
}
}
public void reset() {
firstTime = true;
tree = root;
nodes.clear();
}
@Override
public boolean hasNext() {
if ( firstTime ) return root!=null;
if ( nodes!=null && nodes.size()>0 ) return true;
if ( tree==null ) return false;
if ( adaptor.getChildCount(tree)>0 ) return true;
return adaptor.getParent(tree)!=null; // back at root?
}
@Override
public T next() {
if ( firstTime ) { // initial condition
firstTime = false;
if ( adaptor.getChildCount(tree)==0 ) { // single node tree (special)
nodes.add(eof);
return tree;
}
return tree;
}
// if any queued up, use those first
if ( nodes!=null && nodes.size()>0 ) return nodes.remove();
// no nodes left?
if ( tree==null ) return eof;
// next node will be child 0 if any children
if ( adaptor.getChildCount(tree)>0 ) {
tree = adaptor.getChild(tree, 0);
nodes.add(tree); // real node is next after DOWN
return down;
}
// if no children, look for next sibling of tree or ancestor
T parent = adaptor.getParent(tree);
// while we're out of siblings, keep popping back up towards root
while ( parent!=null &&
adaptor.getChildIndex(tree)+1 >= adaptor.getChildCount(parent) )
{
nodes.add(up); // we're moving back up
tree = parent;
parent = adaptor.getParent(tree);
}
// no nodes left?
if ( parent==null ) {
tree = null; // back at root? nothing left then
nodes.add(eof); // add to queue, might have UP nodes in there
return nodes.remove();
}
// must have found a node with an unvisited sibling
// move to it and return it
int nextSiblingIndex = adaptor.getChildIndex(tree) + 1;
tree = adaptor.getChild(parent, nextSiblingIndex);
nodes.add(tree); // add to queue, might have UP nodes in there
return nodes.remove();
}
@Override
public void remove() { throw new UnsupportedOperationException(); }
}

109
runtime/Java/src/org/antlr/v4/runtime/tree/ASTNodeStream.java
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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
/** A stream of tree nodes, accessing nodes from a tree of some kind */
public interface ASTNodeStream<T> extends SymbolStream<T> {
/** Get a tree node at an absolute index i; 0..n-1.
* If you don't want to buffer up nodes, then this method makes no
* sense for you.
*/
@Override
T get(int i);
/** Get tree node at current input pointer + i ahead where i=1 is next node.
* i<0 indicates nodes in the past. So LT(-1) is previous node, but
* implementations are not required to provide results for k < -1.
* LT(0) is undefined. For i>=n, return null.
* Return null for LT(0) and any index that results in an absolute address
* that is negative.
*
* This is analogus to the LT() method of the TokenStream, but this
* returns a tree node instead of a token. Makes code gen identical
* for both parser and tree grammars. :)
*/
@Override
T LT(int k);
/** Where is this stream pulling nodes from? This is not the name, but
* the object that provides node objects.
*/
public T getTreeSource();
/** If the tree associated with this stream was created from a TokenStream,
* you can specify it here. Used to do rule $text attribute in tree
* parser. Optional unless you use tree parser rule text attribute
* or output=template and rewrite=true options.
*/
public TokenStream getTokenStream();
/** What adaptor can tell me how to interpret/navigate nodes and
* trees. E.g., get text of a node.
*/
public ASTAdaptor<T> getTreeAdaptor();
/** As we flatten the tree, we use UP, DOWN nodes to represent
* the tree structure. When debugging we need unique nodes
* so we have to instantiate new ones. When doing normal tree
* parsing, it's slow and a waste of memory to create unique
* navigation nodes. Default should be false;
*/
public void setUniqueNavigationNodes(boolean uniqueNavigationNodes);
/** Reset the tree node stream in such a way that it acts like
* a freshly constructed stream.
*/
public void reset();
/** Return the text of all nodes from start to stop, inclusive.
* If the stream does not buffer all the nodes then it can still
* walk recursively from start until stop. You can always return
* null or "" too, but users should not access $ruleLabel.text in
* an action of course in that case.
*/
public String toString(T start, T stop);
// REWRITING TREES (used by tree parser)
/** Replace from start to stop child index of parent with t, which might
* be a list. Number of children may be different
* after this call. The stream is notified because it is walking the
* tree and might need to know you are monkeying with the underlying
* tree. Also, it might be able to modify the node stream to avoid
* restreaming for future phases.
*
* If parent is null, don't do anything; must be at root of overall tree.
* Can't replace whatever points to the parent externally. Do nothing.
*/
public void replaceChildren(T parent, int startChildIndex, int stopChildIndex, T t);
}

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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.BaseRecognizer;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.tree.gui.TreeViewer;
import java.io.IOException;
import java.util.*;
/** A generic AST implementation with no payload. You must subclass to
* actually have any user data. ANTLR v3 uses a list of children approach
* instead of the child-sibling approach in v2. A flat tree (a list) is
* an empty node whose children represent the list. An empty, but
* non-null node is called "nil".
*/
public abstract class BaseAST implements AST {
/** Who is the parent node of this node; if null, implies node is root */
public BaseAST parent;
protected List<BaseAST> children;
/** What index is this node in the child list? Range: 0..n-1 */
public int childIndex = -1;
public BaseAST() {
}
/** Create a new node from an existing node does nothing for BaseTree
* as there are no fields other than the children list, which cannot
* be copied as the children are not considered part of this node.
*/
public BaseAST(AST node) {
}
@Override
public BaseAST getChild(int i) {
if ( children==null || i>=children.size() ) {
return null;
}
return children.get(i);
}
/** Get the children internal List; note that if you directly mess with
* the list, do so at your own risk.
*/
public List<BaseAST> getChildren() { return children; }
public AST getFirstChildWithType(int type) {
return Trees.getFirstChildWithType(this, type);
}
@Override
public int getChildCount() {
if ( children==null ) return 0;
return children.size();
}
/** Add t as child of this node.
*
* Warning: if t has no children, but child does
* and child isNil then this routine moves children to t via
* t.children = child.children; i.e., without copying the array.
*/
public void addChild(BaseAST t) {
//System.out.println("add child "+t.toStringTree()+" "+this.toStringTree());
//System.out.println("existing children: "+children);
if ( t==null ) {
return; // do nothing upon addChild(null)
}
BaseAST childTree = t;
if ( childTree.isNil() ) { // t is an empty node possibly with children
if ( this.children!=null && this.children == childTree.children ) {
throw new RuntimeException("attempt to add child list to itself");
}
// just add all of childTree's children to this
if ( childTree.children!=null ) {
if ( this.children!=null ) { // must copy, this has children already
int n = childTree.children.size();
for (int i = 0; i < n; i++) {
BaseAST c = childTree.children.get(i);
this.children.add(c);
// handle double-link stuff for each child of nil root
c.setParent(this);
c.setChildIndex(children.size()-1);
}
}
else {
// no children for this but t has children; just set pointer
// call general freshener routine
this.children = childTree.children;
this.freshenParentAndChildIndexes();
}
}
}
else { // child is not nil (don't care about children)
if ( children==null ) {
children = createChildrenList(); // create children list on demand
}
children.add(t);
childTree.setParent(this);
childTree.setChildIndex(children.size()-1);
}
// System.out.println("now children are: "+children);
}
/** Add all elements of kids list as children of this node */
public void addChildren(List<? extends BaseAST> kids) {
if ( kids==null ) return;
for (int i = 0; i < kids.size(); i++) {
BaseAST t = kids.get(i);
addChild(t);
}
}
public void setChild(int i, BaseAST t) {
if ( t==null ) {
return;
}
if ( t.isNil() ) {
throw new IllegalArgumentException("Can't set single child to a list");
}
if ( children==null ) {
children = createChildrenList();
}
children.set(i, t);
t.setParent(this);
t.setChildIndex(i);
}
public int getChildIndex() {
return childIndex;
}
@Override
public AST getParent() {
return parent;
}
public void setParent(BaseAST t) {
this.parent = t;
}
public void setChildIndex(int index) {
this.childIndex = index;
}
public BaseAST deleteChild(int i) {
if ( children==null ) {
return null;
}
BaseAST killed = children.remove(i);
// walk rest and decrement their child indexes
this.freshenParentAndChildIndexes(i);
return killed;
}
public boolean deleteChild(BaseAST t) {
for (int i=0; i<children.size(); i++) {
BaseAST c = children.get(i);
if ( c == t ) {
deleteChild(t.getChildIndex());
return true;
}
}
return false;
}
/** Insert child t at child position i (0..n) by shifting children
i+1..n-1 to the right one position. Set parent / indexes properly
but does NOT collapse nil-rooted t's that come in here like addChild.
Set position i==n to add to end. Add @ 0 in empty list, adds 1st child.
*/
public void insertChild(int i, BaseAST t) {
if (i < 0 || i > getChildCount()) {
throw new IndexOutOfBoundsException(i+" out or range");
}
if ( children==null ) children = createChildrenList();
children.add(i, t);
// walk others to increment their child indexes
// set index, parent of this one too
this.freshenParentAndChildIndexes(i);
}
/** Override in a subclass to change the impl of children list */
protected List<BaseAST> createChildrenList() {
return new ArrayList<BaseAST>();
}
@Override
public boolean isNil() {
return false;
}
/** Set the parent and child index values for all child of t */
public void freshenParentAndChildIndexes() {
freshenParentAndChildIndexes(0);
}
public void freshenParentAndChildIndexes(int offset) {
int n = getChildCount();
for (int c = offset; c < n; c++) {
BaseAST child = getChild(c);
child.setChildIndex(c);
child.setParent(this);
}
}
public void freshenParentAndChildIndexesDeeply() {
freshenParentAndChildIndexesDeeply(0);
}
public void freshenParentAndChildIndexesDeeply(int offset) {
int n = getChildCount();
for (int c = offset; c < n; c++) {
BaseAST child = getChild(c);
child.setChildIndex(c);
child.setParent(this);
child.freshenParentAndChildIndexesDeeply();
}
}
/** Walk upwards looking for ancestor with this token type. */
public boolean hasAncestor(int ttype) { return getAncestor(ttype)!=null; }
/** Walk upwards and get first ancestor with this token type. */
public Tree getAncestor(int ttype) { return Trees.getAncestor(this, ttype); }
/** Return a list of all ancestors of this node. The first node of
* list is the root and the last is the parent of this node.
*/
@NotNull
public List<? extends Tree> getAncestors() { return Trees.getAncestors(this); }
public void inspect(BaseRecognizer<?> parser) {
TreeViewer viewer = new TreeViewer(parser, this);
viewer.open();
}
public void save(BaseRecognizer<?> parser, String fileName)
throws IOException
{
Trees.writePS(this, parser, fileName);
}
public void save(BaseRecognizer<?> parser, String fileName,
String fontName, int fontSize)
throws IOException
{
Trees.writePS(this, parser, fileName, fontName, fontSize);
}
/** Don't use standard tree printing mechanism since ASTs can have nil
* root nodes.
*/
@Override
public String toStringTree() {
return Trees.toStringTree(this, null);
// if ( children==null || children.size()==0 ) {
// return this.toString();
// }
// StringBuffer buf = new StringBuffer();
// if ( !isNil() ) {
// buf.append("(");
// buf.append(this.toString());
// buf.append(' ');
// }
// for (int i = 0; children!=null && i < children.size(); i++) {
// AST t = children.get(i);
// if ( i>0 ) {
// buf.append(' ');
// }
// buf.append(t.toStringTree());
// }
// if ( !isNil() ) {
// buf.append(")");
// }
// return buf.toString();
}
}

286
runtime/Java/src/org/antlr/v4/runtime/tree/BaseASTAdaptor.java
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@ -1,286 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.WritableToken;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/** An ASTAdaptor that works with any BaseAST implementation. */
public abstract class BaseASTAdaptor<T extends BaseAST> implements ASTAdaptor<T> {
/** System.identityHashCode() is not always unique; we have to
* track ourselves. That's ok, it's only for debugging, though it's
* expensive: we have to create a hashtable with all tree nodes in it.
* TODO: rm?
*/
protected Map<BaseAST, Integer> treeToUniqueIDMap;
protected int uniqueNodeID = 1;
@Override
public List<T> createElementList() {
return new ElementList<T>(this);
}
// END v4 stuff
@Override
public T nil() {
return create(null);
}
@Override
public boolean isNil(T tree) {
return tree.isNil();
}
@Override
public T dupTree(T tree) {
return dupTree(tree, null);
}
/** This is generic in the sense that it will work with any kind of
* tree (not just AST interface). It invokes the adaptor routines
* not the tree node routines to do the construction.
*/
public T dupTree(T t, T parent) {
if ( t==null ) {
return null;
}
T newTree = dupNode(t);
// ensure new subtree root has parent/child index set
setChildIndex(newTree, getChildIndex(t)); // same index in new tree
setParent(newTree, parent);
int n = getChildCount(t);
for (int i = 0; i < n; i++) {
T child = getChild(t, i);
T newSubTree = dupTree(child, t);
addChild(newTree, newSubTree);
}
return newTree;
}
/** Add a child to the tree t. If child is a flat tree (a list), make all
* in list children of t. Warning: if t has no children, but child does
* and child isNil then you can decide it is ok to move children to t via
* t.children = child.children; i.e., without copying the array. Just
* make sure that this is consistent with have the user will build
* ASTs.
*/
@Override
public void addChild(T t, T child) {
if ( t!=null && child!=null ) {
t.addChild(child);
}
}
/** If oldRoot is a nil root, just copy or move the children to newRoot.
* If not a nil root, make oldRoot a child of newRoot.
*
* old=^(nil a b c), new=r yields ^(r a b c)
* old=^(a b c), new=r yields ^(r ^(a b c))
*
* If newRoot is a nil-rooted single child tree, use the single
* child as the new root node.
*
* old=^(nil a b c), new=^(nil r) yields ^(r a b c)
* old=^(a b c), new=^(nil r) yields ^(r ^(a b c))
*
* If oldRoot was null, it's ok, just return newRoot (even if isNil).
*
* old=null, new=r yields r
* old=null, new=^(nil r) yields ^(nil r)
*
* Return newRoot. Throw an exception if newRoot is not a
* simple node or nil root with a single child node--it must be a root
* node. If newRoot is ^(nil x) return x as newRoot.
*
* Be advised that it's ok for newRoot to point at oldRoot's
* children; i.e., you don't have to copy the list. We are
* constructing these nodes so we should have this control for
* efficiency.
*/
@Override
public T becomeRoot(T newRoot, T oldRoot) {
//System.out.println("becomeroot new "+newRoot.toString()+" old "+oldRoot);
if ( oldRoot==null ) {
return newRoot;
}
if ( newRoot==null ) {
return oldRoot;
}
// handle ^(nil real-node)
if ( newRoot.isNil() ) {
int nc = newRoot.getChildCount();
if ( nc==1 ) newRoot = (T)newRoot.getChild(0);
else if ( nc >1 ) {
// TODO: make tree run time exceptions hierarchy
throw new RuntimeException("more than one node as root (TODO: make exception hierarchy)");
}
}
// add oldRoot to newRoot; addChild takes care of case where oldRoot
// is a flat list (i.e., nil-rooted tree). All children of oldRoot
// are added to newRoot.
newRoot.addChild(oldRoot);
return newRoot;
}
/** Transform ^(nil x) to x and nil to null */
@Override
public T rulePostProcessing(T root) {
//System.out.println("rulePostProcessing: "+((AST)root).toStringTree());
if ( root!=null && root.isNil() ) {
if ( root.getChildCount()==0 ) {
root = null;
}
else if ( root.getChildCount()==1 ) {
root = (T)root.getChild(0);
// whoever invokes rule will set parent and child index
root.setParent(null);
root.setChildIndex(-1);
}
}
return root;
}
@Override
public T becomeRoot(Token newRoot, T oldRoot) {
return becomeRoot(create(newRoot), oldRoot);
}
@Override
public T create(int tokenType, Token fromToken) {
WritableToken tok = createToken(fromToken);
//((ClassicToken)fromToken).setType(tokenType);
tok.setType(tokenType);
return create(tok);
}
@Override
public T create(int tokenType, Token fromToken, String text) {
if (fromToken == null) return create(tokenType, text);
WritableToken tok = createToken(fromToken);
tok.setType(tokenType);
tok.setText(text);
return create(tok);
}
@Override
public T create(int tokenType, String text) {
Token fromToken = createToken(tokenType, text);
return create(fromToken);
}
@Override
public int getType(T t) {
return t.getType();
}
@Override
public void setType(T t, int type) {
throw new UnsupportedOperationException("don't know enough about AST node");
}
@Override
public String getText(T t) {
return t.getText();
}
@Override
public void setText(T t, String text) {
throw new UnsupportedOperationException("don't know enough about AST node");
}
@Override
public T getChild(T t, int i) {
return (T)t.getChild(i);
}
@Override
public void setChild(T t, int i, T child) {
t.setChild(i, child);
}
@Override
public T deleteChild(T t, int i) {
return (T)t.deleteChild(i);
}
@Override
public int getChildCount(T t) {
return t.getChildCount();
}
@Override
public int getUniqueID(T node) {
if ( treeToUniqueIDMap==null ) {
treeToUniqueIDMap = new HashMap<BaseAST, Integer>();
}
Integer prevID = treeToUniqueIDMap.get(node);
if ( prevID!=null ) {
return prevID;
}
int ID = uniqueNodeID;
treeToUniqueIDMap.put(node, ID);
uniqueNodeID++;
return ID;
// GC makes these nonunique:
// return System.identityHashCode(node);
}
/** Tell me how to create a token for use with imaginary token nodes.
* For example, there is probably no input symbol associated with imaginary
* token DECL, but you need to create it as a payload or whatever for
* the DECL node as in ^(DECL type ID).
*
* If you care what the token payload objects' type is, you should
* override this method and any other createToken variant.
*/
public abstract WritableToken createToken(int tokenType, String text);
/** Tell me how to create a token for use with imaginary token nodes.
* For example, there is probably no input symbol associated with imaginary
* token DECL, but you need to create it as a payload or whatever for
* the DECL node as in ^(DECL type ID).
*
* This is a variant of createToken where the new token is derived from
* an actual real input token. Typically this is for converting '{'
* tokens to BLOCK etc... You'll see
*
* r : lc='{' ID+ '}' -> ^(BLOCK[$lc] ID+) ;
*
* If you care what the token payload objects' type is, you should
* override this method and any other createToken variant.
*/
public abstract WritableToken createToken(Token fromToken);
}

524
runtime/Java/src/org/antlr/v4/runtime/tree/BufferedASTNodeStream.java
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@ -1,524 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2005-2009 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
import java.util.*;
/** A buffered stream of tree nodes. Nodes can be from a tree of ANY kind.
*
* This node stream sucks all nodes out of the tree specified in
* the constructor during construction and makes pointers into
* the tree using an array of Object pointers. The stream necessarily
* includes pointers to DOWN and UP and EOF nodes.
*
* This stream knows how to mark/release for backtracking.
*
* This stream is most suitable for tree interpreters that need to
* jump around a lot or for tree parsers requiring speed (at cost of memory).
* There is some duplicated functionality here with UnBufferedASTNodeStream
* but just in bookkeeping, not tree walking etc...
*
* TARGET DEVELOPERS:
*
* This is the old CommonASTNodeStream that buffered up entire node stream.
* No need to implement really as new CommonASTNodeStream is much better
* and covers what we need.
*
* @see CommonASTNodeStream
*/
public class BufferedASTNodeStream<T> implements ASTNodeStream<T> {
public static final int DEFAULT_INITIAL_BUFFER_SIZE = 100;
public static final int INITIAL_CALL_STACK_SIZE = 10;
protected class StreamIterator implements Iterator<T> {
int i = 0;
@Override
public boolean hasNext() {
return i<nodes.size();
}
@Override
public T next() {
int current = i;
i++;
if ( current < nodes.size() ) {
return nodes.get(current);
}
return eof;
}
@Override
public void remove() {
throw new RuntimeException("cannot remove nodes from stream");
}
}
// all these navigation nodes are shared and hence they
// cannot contain any line/column info
protected T down;
protected T up;
protected T eof;
/** The complete mapping from stream index to tree node.
* This buffer includes pointers to DOWN, UP, and EOF nodes.
* It is built upon ctor invocation. The elements are type
* Object as we don't what the trees look like.
*
* Load upon first need of the buffer so we can set token types
* of interest for reverseIndexing. Slows us down a wee bit to
* do all of the if p==-1 testing everywhere though.
*/
protected List<T> nodes;
/** Pull nodes from which tree? */
protected T root;
/** IF this tree (root) was created from a token stream, track it. */
protected TokenStream tokens;
/** What tree adaptor was used to build these trees */
ASTAdaptor<T> adaptor;
/** Reuse same DOWN, UP navigation nodes unless this is true */
protected boolean uniqueNavigationNodes = false;
/** The index into the nodes list of the current node (next node
* to consume). If -1, nodes array not filled yet.
*/
protected int p = -1;
/** Track the last mark() call result value for use in rewind(). */
protected int lastMarker;
/** Stack of indexes used for push/pop calls */
protected List<Integer> calls;
public BufferedASTNodeStream(T tree) {
this((ASTAdaptor<T>)new CommonASTAdaptor(), tree);
}
public BufferedASTNodeStream(ASTAdaptor<T> adaptor, T tree) {
this(adaptor, tree, DEFAULT_INITIAL_BUFFER_SIZE);
}
public BufferedASTNodeStream(ASTAdaptor<T> adaptor, T tree, int initialBufferSize) {
this.root = tree;
this.adaptor = adaptor;
nodes = new ArrayList<T>(initialBufferSize);
down = adaptor.create(Token.DOWN, "DOWN");
up = adaptor.create(Token.UP, "UP");
eof = adaptor.create(Token.EOF, "EOF");
}
/** Walk tree with depth-first-search and fill nodes buffer.
* Don't do DOWN, UP nodes if its a list (t is isNil).
*/
protected void fillBuffer() {
fillBuffer(root);
//System.out.println("revIndex="+tokenTypeToStreamIndexesMap);
p = 0; // buffer of nodes intialized now
}
public void fillBuffer(T t) {
boolean nil = adaptor.isNil(t);
if ( !nil ) {
nodes.add(t); // add this node
}
// add DOWN node if t has children
int n = adaptor.getChildCount(t);
if ( !nil && n>0 ) {
addNavigationNode(Token.DOWN);
}
// and now add all its children
for (int c=0; c<n; c++) {
T child = adaptor.getChild(t,c);
fillBuffer(child);
}
// add UP node if t has children
if ( !nil && n>0 ) {
addNavigationNode(Token.UP);
}
}
/** What is the stream index for node? 0..n-1
* Return -1 if node not found.
*/
protected int getNodeIndex(T node) {
if ( p==-1 ) {
fillBuffer();
}
for (int i = 0; i < nodes.size(); i++) {
T t = nodes.get(i);
if ( t==node ) {
return i;
}
}
return -1;
}
/** As we flatten the tree, we use UP, DOWN nodes to represent
* the tree structure. When debugging we need unique nodes
* so instantiate new ones when uniqueNavigationNodes is true.
*/
protected void addNavigationNode(final int ttype) {
T navNode = null;
if ( ttype==Token.DOWN ) {
if ( hasUniqueNavigationNodes() ) {
navNode = adaptor.create(Token.DOWN, "DOWN");
}
else {
navNode = down;
}
}
else {
if ( hasUniqueNavigationNodes() ) {
navNode = adaptor.create(Token.UP, "UP");
}
else {
navNode = up;
}
}
nodes.add(navNode);
}
@Override
public T get(int i) {
if ( p==-1 ) {
fillBuffer();
}
return nodes.get(i);
}
public List<T> get(int i, int j) {
if ( p==-1 ) {
fillBuffer();
}
return nodes.subList(i,j+1);
}
public List<T> get(T start, T stop) {
int i=0;
for (; i<nodes.size(); i++) {
T t = nodes.get(i);
if ( t==start ) break;
}
int j=i;
for (; j<nodes.size(); j++) {
T t = nodes.get(j);
if ( t==stop ) break;
}
if ( i>=nodes.size() ) return null;
if ( j>=nodes.size() ) j = nodes.size()-1;
return get(i,j);
}
@Override
public T LT(int k) {
if ( p==-1 ) {
fillBuffer();
}
if ( k==0 ) {
return null;
}
if ( k<0 ) {
return LB(-k);
}
//System.out.print("LT(p="+p+","+k+")=");
if ( (p+k-1) >= nodes.size() ) {
return eof;
}
return nodes.get(p+k-1);
}
public T getCurrentSymbol() { return LT(1); }
/*
public T getLastTreeNode() {
int i = index();
if ( i>=size() ) {
i--; // if at EOF, have to start one back
}
System.out.println("start last node: "+i+" size=="+nodes.size());
while ( i>=0 &&
(adaptor.getType(get(i))==Token.EOF ||
adaptor.getType(get(i))==Token.UP ||
adaptor.getType(get(i))==Token.DOWN) )
{
i--;
}
System.out.println("stop at node: "+i+" "+nodes.get(i));
return nodes.get(i);
}
*/
/** Look backwards k nodes */
protected T LB(int k) {
if ( k==0 ) {
return null;
}
if ( (p-k)<0 ) {
return null;
}
return nodes.get(p-k);
}
@Override
public T getTreeSource() {
return root;
}
@Override
public String getSourceName() {
return getTokenStream().getSourceName();
}
@Override
public ASTAdaptor<T> getTreeAdaptor() {
return adaptor;
}
@Override
public TokenStream getTokenStream() {
return tokens;
}
public void setTokenStream(TokenStream tokens) {
this.tokens = tokens;
}
public ASTAdaptor<T> getASTAdaptor() {
return adaptor;
}
public void setASTAdaptor(ASTAdaptor<T> adaptor) {
this.adaptor = adaptor;
}
public boolean hasUniqueNavigationNodes() {
return uniqueNavigationNodes;
}
@Override
public void setUniqueNavigationNodes(boolean uniqueNavigationNodes) {
this.uniqueNavigationNodes = uniqueNavigationNodes;
}
@Override
public void consume() {
if ( p==-1 ) {
fillBuffer();
}
p++;
}
@Override
public int LA(int i) {
return adaptor.getType(LT(i));
}
@Override
public int mark() {
if ( p==-1 ) {
fillBuffer();
}
lastMarker = index();
return lastMarker;
}
@Override
public void release(int marker) {
// no resources to release
}
@Override
public int index() {
return p;
}
public void rewind(int marker) {
seek(marker);
}
public void rewind() {
seek(lastMarker);
}
@Override
public void seek(int index) {
if ( p==-1 ) {
fillBuffer();
}
p = index;
}
/** Make stream jump to a new location, saving old location.
* Switch back with pop().
*/
public void push(int index) {
if ( calls==null ) {
calls = new ArrayList<Integer>();
}
calls.add(p); // save current index
seek(index);
}
/** Seek back to previous index saved during last push() call.
* Return top of stack (return index).
*/
public int pop() {
int ret = calls.remove(calls.size() - 1);
seek(ret);
return ret;
}
@Override
public void reset() {
p = 0;
lastMarker = 0;
if (calls != null) {
calls.clear();
}
}
@Override
public int size() {
if ( p==-1 ) {
fillBuffer();
}
return nodes.size();
}
public Iterator<T> iterator() {
if ( p==-1 ) {
fillBuffer();
}
return new StreamIterator();
}
// TREE REWRITE INTERFACE
@Override
public void replaceChildren(T parent, int startChildIndex, int stopChildIndex, T t) {
if ( parent!=null ) {
adaptor.replaceChildren(parent, startChildIndex, stopChildIndex, t);
}
}
/** Used for testing, just return the token type stream */
public String toTokenTypeString() {
if ( p==-1 ) {
fillBuffer();
}
StringBuffer buf = new StringBuffer();
for (int i = 0; i < nodes.size(); i++) {
T t = nodes.get(i);
buf.append(" ");
buf.append(adaptor.getType(t));
}
return buf.toString();
}
/** Debugging */
public String toTokenString(int start, int stop) {
if ( p==-1 ) {
fillBuffer();
}
StringBuffer buf = new StringBuffer();
for (int i = start; i < nodes.size() && i <= stop; i++) {
T t = nodes.get(i);
buf.append(" ");
buf.append(adaptor.getToken(t));
}
return buf.toString();
}
@Override
public String toString(T start, T stop) {
System.out.println("toString");
if ( start==null || stop==null ) {
return null;
}
if ( p==-1 ) {
fillBuffer();
}
//System.out.println("stop: "+stop);
if ( start instanceof CommonAST )
System.out.print("toString: "+((CommonAST)start).getToken()+", ");
else
System.out.println(start);
if ( stop instanceof CommonAST )
System.out.println(((CommonAST)stop).getToken());
else
System.out.println(stop);
// if we have the token stream, use that to dump text in order
if ( tokens!=null ) {
int beginTokenIndex = adaptor.getTokenStartIndex(start);
int endTokenIndex = adaptor.getTokenStopIndex(stop);
// if it's a tree, use start/stop index from start node
// else use token range from start/stop nodes
if ( adaptor.getType(stop)==Token.UP ) {
endTokenIndex = adaptor.getTokenStopIndex(start);
}
else if ( adaptor.getType(stop)==Token.EOF ) {
endTokenIndex = size()-2; // don't use EOF
}
return tokens.toString(beginTokenIndex, endTokenIndex);
}
// walk nodes looking for start
T t = null;
int i = 0;
for (; i < nodes.size(); i++) {
t = nodes.get(i);
if ( t==start ) {
break;
}
}
// now walk until we see stop, filling string buffer with text
StringBuffer buf = new StringBuffer();
t = nodes.get(i);
while ( t!=stop ) {
String text = adaptor.getText(t);
if ( text==null ) {
text = " "+String.valueOf(adaptor.getType(t));
}
buf.append(text);
i++;
t = nodes.get(i);
}
// include stop node too
String text = adaptor.getText(stop);
if ( text==null ) {
text = " "+String.valueOf(adaptor.getType(stop));
}
buf.append(text);
return buf.toString();
}
}

159
runtime/Java/src/org/antlr/v4/runtime/tree/CommonAST.java
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@ -1,159 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.Interval;
/** A tree node that is wrapper for a Token object. */
public class CommonAST extends BaseAST {
/** A single token is the payload */
public Token token;
/** What token indexes bracket all tokens associated with this node
* and below?
*/
protected int startIndex=-1, stopIndex=-1;
public CommonAST() { }
public CommonAST(CommonAST node) {
super(node);
this.token = node.token;
this.startIndex = node.startIndex;
this.stopIndex = node.stopIndex;
}
public CommonAST(Token t) {
this.token = t;
}
public Token getToken() {
return token;
}
@Override
public Token getPayload() {
return getToken();
}
@Override
public Interval getSourceInterval() {
return new Interval(getTokenStartIndex(), getTokenStopIndex());
}
@Override
public boolean isNil() {
return token==null;
}
@Override
public CommonAST getChild(int i) {
return (CommonAST)super.getChild(i);
}
@Override
public CommonAST getParent() {
return (CommonAST)super.getParent();
}
@Override
public int getType() {
if ( token==null ) {
return Token.INVALID_TYPE;
}
return token.getType();
}
@Override
public String getText() {
if ( token==null ) {
return null;
}
return token.getText();
}
@Override
public int getLine() {
if ( token==null || token.getLine()==0 ) {
if ( getChildCount()>0 ) {
return getChild(0).getLine();
}
return 0;
}
return token.getLine();
}
@Override
public int getCharPositionInLine() {
if ( token==null || token.getCharPositionInLine()==-1 ) {
if ( getChildCount()>0 ) {
return getChild(0).getCharPositionInLine();
}
return 0;
}
return token.getCharPositionInLine();
}
public int getTokenStartIndex() {
if ( startIndex==-1 && token!=null ) {
return token.getTokenIndex();
}
return startIndex;
}
public void setTokenStartIndex(int index) {
startIndex = index;
}
public int getTokenStopIndex() {
if ( stopIndex==-1 && token!=null ) {
return token.getTokenIndex();
}
return stopIndex;
}
public void setTokenStopIndex(int index) {
stopIndex = index;
}
public String toString() {
if ( isNil() ) {
return "nil";
}
if ( getType()==Token.INVALID_TYPE) {
return "<errornode>";
}
if ( token==null ) {
return null;
}
return token.getText();
}
}

185
runtime/Java/src/org/antlr/v4/runtime/tree/CommonASTAdaptor.java
View File

@ -1,185 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
/** An ASTAdaptor that works with CommonAST. It provides
* really just factory methods; all the work is done by BaseTreeAdaptor.
* If you would like to have different tokens created than CommonToken
* objects, you need to override this and then set the parser tree adaptor to
* use your subclass.
*
* To get your parser to build nodes of a different type, override
* create(Token).
*/
public class CommonASTAdaptor extends BaseASTAdaptor<CommonAST> {
/** Duplicate a node. This is part of the factory;
* override if you want another kind of node to be built.
*
* I could use reflection to prevent having to override this
* but reflection is slow.
*/
@Override
public CommonAST dupNode(CommonAST t) {
if ( t==null ) return null;
return new CommonAST(t);
}
@Override
public CommonAST create(Token payload) {
return new CommonAST(payload);
}
/** Tell me how to create a token for use with imaginary token nodes.
* For example, there is probably no input symbol associated with imaginary
* token DECL, but you need to create it as a payload or whatever for
* the DECL node as in ^(DECL type ID).
*
* If you care what the token payload objects' type is, you should
* override this method and any other createToken variant.
*/
@Override
public WritableToken createToken(int tokenType, String text) {
return new CommonToken(tokenType, text);
}
/** Tell me how to create a token for use with imaginary token nodes.
* For example, there is probably no input symbol associated with imaginary
* token DECL, but you need to create it as a payload or whatever for
* the DECL node as in ^(DECL type ID).
*
* This is a variant of createToken where the new token is derived from
* an actual real input token. Typically this is for converting '{'
* tokens to BLOCK etc... You'll see
*
* r : lc='{' ID+ '}' -> ^(BLOCK[$lc] ID+) ;
*
* If you care what the token payload objects' type is, you should
* override this method and any other createToken variant.
*/
@Override
public WritableToken createToken(Token fromToken) {
return new CommonToken(fromToken);
}
/** Track start/stop token for subtree root created for a rule.
* Only works with CommonAST nodes. For rules that match nothing,
* seems like this will yield start=i and stop=i-1 in a nil node.
* Might be useful info so I'll not force to be i..i.
*/
@Override
public void setTokenBoundaries(CommonAST t, Token startToken, Token stopToken) {
if ( t==null ) return;
int start = 0;
int stop = 0;
if ( startToken!=null ) start = startToken.getTokenIndex();
if ( stopToken!=null ) stop = stopToken.getTokenIndex();
t.setTokenStartIndex(start);
t.setTokenStopIndex(stop);
}
@Override
public int getTokenStartIndex(CommonAST t) {
if ( t==null ) return -1;
return t.getTokenStartIndex();
}
@Override
public int getTokenStopIndex(CommonAST t) {
if ( t==null ) return -1;
return t.getTokenStopIndex();
}
@Override
public String getText(CommonAST t) {
if ( t==null ) return null;
return t.getText();
}
@Override
public int getType(CommonAST t) {
if ( t==null ) return Token.INVALID_TYPE;
return t.getType();
}
/** What is the Token associated with this node? If
* you are not using CommonAST, then you must
* override this in your own adaptor.
*/
@Override
public Token getToken(CommonAST t) {
if ( t==null ) return null;
return t.getToken();
}
@Override
public CommonAST getChild(CommonAST t, int i) {
if ( t==null ) return null;
return t.getChild(i);
}
@Override
public int getChildCount(CommonAST t) {
if ( t==null ) return 0;
return t.getChildCount();
}
@Override
public CommonAST getParent(CommonAST t) {
if ( t==null ) return null;
return t.getParent();
}
@Override
public void setParent(CommonAST t, CommonAST parent) {
if ( t!=null ) t.setParent(parent);
}
@Override
public int getChildIndex(CommonAST t) {
if ( t==null ) return 0;
return t.getChildIndex();
}
@Override
public void setChildIndex(CommonAST t, int index) {
if ( t!=null ) t.setChildIndex(index);
}
@Override
public void replaceChildren(CommonAST parent, int startChildIndex, int stopChildIndex, CommonAST t) {
if ( parent!=null ) {
Trees.replaceChildren(parent, startChildIndex, stopChildIndex, t);
}
}
}

195
runtime/Java/src/org/antlr/v4/runtime/tree/CommonASTNodeStream.java
View File

@ -1,195 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.misc.LookaheadStream;
import java.util.Stack;
public class CommonASTNodeStream<T> extends LookaheadStream<T>
implements ASTNodeStream<T>
{
public static final int DEFAULT_INITIAL_BUFFER_SIZE = 100;
public static final int INITIAL_CALL_STACK_SIZE = 10;
/** Pull nodes from which tree? */
protected T root;
/** If this tree (root) was created from a token stream, track it. */
protected TokenStream tokens;
/** What tree adaptor was used to build these trees */
ASTAdaptor<T> adaptor;
/** The tree iterator we using */
protected ASTIterator<T> it;
/** Stack of indexes used for push/pop calls */
protected Stack<Integer> calls;
/** Tree (nil A B C) trees like flat A B C streams */
protected boolean hasNilRoot = false;
/** Tracks tree depth. Level=0 means we're at root node level. */
protected int level = 0;
public CommonASTNodeStream(T tree) {
this((tree instanceof CommonAST)?(ASTAdaptor<T>)new CommonASTAdaptor():null,
tree);
}
public CommonASTNodeStream(ASTAdaptor<T> adaptor, T tree) {
this.root = tree;
this.adaptor = adaptor;
it = new ASTIterator<T>(adaptor,root);
}
@Override
public void reset() {
super.reset();
it.reset();
hasNilRoot = false;
level = 0;
if ( calls != null ) calls.clear();
}
/** Pull elements from tree iterator. Track tree level 0..max_level.
* If nil rooted tree, don't give initial nil and DOWN nor final UP.
*/
@Override
public T nextElement() {
T t = it.next();
//System.out.println("pulled "+adaptor.getType(t));
if ( t == it.up ) {
level--;
if ( level==0 && hasNilRoot ) return it.next(); // don't give last UP; get EOF
}
else if ( t == it.down ) level++;
if ( level==0 && adaptor.isNil(t) ) { // if nil root, scarf nil, DOWN
hasNilRoot = true;
t = it.next(); // t is now DOWN, so get first real node next
level++;
t = it.next();
}
return t;
}
@Override
public boolean isEOF(T o) { return adaptor.getType(o) == Token.EOF; }
@Override
public void setUniqueNavigationNodes(boolean uniqueNavigationNodes) { }
@Override
public T getTreeSource() { return root; }
@Override
public String getSourceName() { return getTokenStream().getSourceName(); }
@Override
public TokenStream getTokenStream() { return tokens; }
public void setTokenStream(TokenStream tokens) { this.tokens = tokens; }
@Override
public ASTAdaptor<T> getTreeAdaptor() { return adaptor; }
public void setTreeAdaptor(ASTAdaptor<T> adaptor) { this.adaptor = adaptor; }
@Override
public T get(int i) {
throw new UnsupportedOperationException("Absolute node indexes are meaningless in an unbuffered stream");
}
@Override
public int LA(int i) { return adaptor.getType(LT(i)); }
/** Make stream jump to a new location, saving old location.
* Switch back with pop().
*/
public void push(int index) {
if ( calls==null ) {
calls = new Stack<Integer>();
}
calls.push(p); // save current index
seek(index);
}
/** Seek back to previous index saved during last push() call.
* Return top of stack (return index).
*/
public int pop() {
int ret = calls.pop();
seek(ret);
return ret;
}
// TREE REWRITE INTERFACE
@Override
public void replaceChildren(T parent, int startChildIndex, int stopChildIndex, T t) {
if ( parent!=null ) {
adaptor.replaceChildren(parent, startChildIndex, stopChildIndex, t);
}
}
/** Print the token text between start and stop nodes. If stop is an UP
* node, then we have to walk it back until we see the first non-UP node.
* Then, just get the token indexes and look into the token stream.
*/
@Override
public String toString(T start, T stop) {
if ( tokens==null ) throw new UnsupportedOperationException("can't print from null token stream in node stream");
if ( start==null || stop==null ) return "";
Token startToken = adaptor.getToken(start);
Token stopToken = adaptor.getToken(stop);
while ( stopToken.getType()==Token.UP ) {
stopToken = adaptor.getToken(stop);
}
return tokens.toString(startToken.getTokenIndex(), stopToken.getTokenIndex());
}
/** For debugging; destructive: moves tree iterator to end. */
public String toTokenTypeString() {
reset();
StringBuffer buf = new StringBuffer();
T o = LT(1);
int type = adaptor.getType(o);
while ( type!=Token.EOF ) {
buf.append(" ");
buf.append(type);
consume();
o = LT(1);
type = adaptor.getType(o);
}
return buf.toString();
}
}

100
runtime/Java/src/org/antlr/v4/runtime/tree/ElementList.java
View File

@ -1,100 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import java.util.*;
/** This list tracks elements to left of -> for use on right of -> */
public class ElementList<E> extends ArrayList<E> {
protected ASTAdaptor<E> adaptor;
/** Once a node / subtree has been used in a stream, it must be dup'd
* from then on.
*/
protected HashSet<Integer> used = new HashSet<Integer>();
public class ElementListIterator implements Iterator<E> {
int cursor = 0;
/** If just 1 element, we still track cursor; next() will dup if
* cursor beyond 1 element.
*/
@Override
public boolean hasNext() {
int n = size();
return (n==1 && cursor<1) || (n>1 && cursor<n);
}
@Override
public E next() {
int n = size();
if ( n == 0 ) throw new RewriteEmptyStreamException("n/a");
if ( cursor >= n) { // out of elements?
if ( n == 1 ) { // if size is 1, it's ok; return and we'll dup
return adaptor.dupTree( get(0) );
}
// out of elements and size was not 1, so we can't dup
throw new RewriteCardinalityException("size=="+n+" and out of elements");
}
// we have elements
if ( n == 1 ) {
cursor++; // move cursor even for single element list
return adaptor.dupTree( get(0) );
}
// must have more than one in list, pull from elements
E e = get(cursor);
cursor++;
return e;
}
@Override
public void remove() { throw new UnsupportedOperationException(); }
}
public ElementList(ASTAdaptor<E> adaptor) {
this.adaptor = adaptor;
}
@Override
public E get(int index) {
E o = super.get(index);
if ( used.contains(index) ) {
return adaptor.dupTree( o );
}
used.add(index); // any subsequent ref must be dup'd
return o;
}
@Override
public Iterator<E> iterator() {
return new ElementListIterator();
}
}

13
runtime/Java/src/org/antlr/v4/runtime/tree/ParseTree.java
View File

@ -29,7 +29,8 @@
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.RuleContext;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.Interval;
/** An interface to access the tree of RuleContext objects created
@ -37,8 +38,7 @@ import org.antlr.v4.runtime.misc.Interval;
* This node represents both internal nodes, rule invocations,
* and leaf nodes, token matches.
*
* Unlike the common AST stuff in the runtime library, there is no such thing
* as a nil node. The payload is either a token or a context object.
* The payload is either a token or a context object.
*/
public interface ParseTree extends SyntaxTree {
public interface RuleNode extends ParseTree {
@ -89,13 +89,8 @@ public interface ParseTree extends SyntaxTree {
if (symbol instanceof Token) {
if ( ((Token)symbol).getType() == Token.EOF ) return "<EOF>";
return ((Token)symbol).getText();
} else if (symbol instanceof AST) {
if (((AST)symbol).getType() == Token.EOF) {
return "<EOF>";
} else {
return ((AST)symbol).getText();
}
} else {
else {
throw new UnsupportedOperationException("This symbol type is not supported by the default implementation.");
}
}

50
runtime/Java/src/org/antlr/v4/runtime/tree/RewriteCardinalityException.java
View File

@ -1,50 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
/** Base class for all exceptions thrown during AST rewrite construction.
* This signifies a case where the cardinality of two or more elements
* in a subrule are different: (ID INT)* where |ID|!=|INT|
*/
public class RewriteCardinalityException extends RuntimeException {
public String elementDescription;
public RewriteCardinalityException(String elementDescription) {
this.elementDescription = elementDescription;
}
@Override
public String getMessage() {
if ( elementDescription!=null ) {
return elementDescription;
}
return null;
}
}

37
runtime/Java/src/org/antlr/v4/runtime/tree/RewriteEmptyStreamException.java
View File

@ -1,37 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
/** Ref to ID or expr but no tokens in ID stream or subtrees in expr stream */
public class RewriteEmptyStreamException extends RewriteCardinalityException {
public RewriteEmptyStreamException(String elementDescription) {
super(elementDescription);
}
}

2
runtime/Java/src/org/antlr/v4/runtime/tree/SyntaxTree.java
View File

@ -33,7 +33,7 @@ import org.antlr.v4.runtime.misc.Interval;
/** A tree that knows about an interval in a token stream
* is some kind of syntax tree. Subinterfaces distinguish
* between parse trees and ASTs.
* between parse trees and other kinds of syntax trees we might want to create.
*/
public interface SyntaxTree extends Tree {
/** Return an interval indicating the index in the TokenStream of

133
runtime/Java/src/org/antlr/v4/runtime/tree/TreeFilter.java
View File

@ -1,133 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
/**
Cut-n-paste from material I'm not using in the book anymore (edit later
to make sense):
Now, how are we going to test these tree patterns against every
subtree in our original tree? In what order should we visit nodes?
For this application, it turns out we need a simple ``apply once''
rule application strategy and a ``down then up'' tree traversal
strategy. Let's look at rule application first.
As we visit each node, we need to see if any of our patterns match. If
a pattern matches, we execute the associated tree rewrite and move on
to the next node. In other words, we only look for a single rule
application opportunity (we'll see below that we sometimes need to
repeatedly apply rules). The following method applies a rule in a @cl
TreeParser (derived from a tree grammar) to a tree:
here is where weReferenced code/walking/patterns/TreePatternMatcher.java
It uses reflection to lookup the appropriate rule within the generated
tree parser class (@cl Simplify in this case). Most of the time, the
rule will not match the tree. To avoid issuing syntax errors and
attempting error recovery, it bumps up the backtracking level. Upon
failure, the invoked rule immediately returns. If you don't plan on
using this technique in your own ANTLR-based application, don't sweat
the details. This method boils down to ``call a rule to match a tree,
executing any embedded actions and rewrite rules.''
At this point, we know how to define tree grammar rules and how to
apply them to a particular subtree. The final piece of the tree
pattern matcher is the actual tree traversal. We have to get the
correct node visitation order. In particular, we need to perform the
scalar-vector multiply transformation on the way down (preorder) and
we need to reduce multiply-by-zero subtrees on the way up (postorder).
To implement a top-down visitor, we do a depth first walk of the tree,
executing an action in the preorder position. To get a bottom-up
visitor, we execute an action in the postorder position. ANTLR
provides a standard @cl TreeVisitor class with a depth first search @v
visit method. That method executes either a @m pre or @m post method
or both. In our case, we need to call @m applyOnce in both. On the way
down, we'll look for @r vmult patterns. On the way up,
we'll look for @r mult0 patterns.
*/
public class TreeFilter<T> extends TreeParser<T> {
public interface fptr {
public void rule() throws RecognitionException;
}
protected TokenStream originalTokenStream;
protected ASTAdaptor<T> originalAdaptor;
public TreeFilter(ASTNodeStream<T> input) {
super(input);
originalAdaptor = input.getTreeAdaptor();
originalTokenStream = input.getTokenStream();
}
public void applyOnce(T t, fptr whichRule) {
if ( t==null ) return;
try {
// share TreeParser object but not parsing-related state
_input = new CommonASTNodeStream<T>(originalAdaptor, t);
((CommonASTNodeStream<T>) _input).setTokenStream(originalTokenStream);
whichRule.rule();
}
catch (RecognitionException e) { }
}
public void downup(T t) {
TreeVisitor<T> v = new TreeVisitor<T>((ASTAdaptor<T>)new CommonASTAdaptor());
TreeVisitorAction<T> actions = new TreeVisitorAction<T>() {
@Override
public T pre(T t) { applyOnce(t, topdown_fptr); return t; }
@Override
public T post(T t) { applyOnce(t, bottomup_fptr); return t; }
};
v.visit(t, actions);
}
fptr topdown_fptr = new fptr() {
@Override
public void rule() throws RecognitionException {
topdown();
}
};
fptr bottomup_fptr = new fptr() {
@Override
public void rule() throws RecognitionException {
bottomup();
}
};
// methods the downup strategy uses to do the up and down rules.
// to override, just define tree grammar rule topdown and turn on
// filter=true.
public void topdown() throws RecognitionException {}
public void bottomup() throws RecognitionException {}
}

256
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@ -1,256 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
import java.util.regex.*;
/** A parser for a stream of tree nodes. "tree grammars" result in a subclass
* of this. All the error reporting and recovery is shared with Parser via
* the BaseRecognizer superclass.
*/
public class TreeParser<T> extends BaseRecognizer<T> {
public static final int DOWN = Token.DOWN;
public static final int UP = Token.UP;
public ASTAdaptor<T> _adaptor = (ASTAdaptor<T>)new CommonASTAdaptor();
// precompiled regex used by inContext
static String dotdot = ".*[^.]\\.\\.[^.].*";
static String doubleEtc = ".*\\.\\.\\.\\s+\\.\\.\\..*";
static Pattern dotdotPattern = Pattern.compile(dotdot);
static Pattern doubleEtcPattern = Pattern.compile(doubleEtc);
protected ASTNodeStream<T> _input;
public TreeParser(ASTNodeStream<T> input) {
super(input);
_errHandler = new DefaultTreeGrammarErrorStrategy<T>();
}
@Override
public void reset() {
super.reset(); // reset all recognizer state variables
if ( _input !=null ) {
_input.seek(0); // rewind the input
}
}
@Override
public T getCurrentInputSymbol() { return _input.LT(1); }
@Override
public ASTNodeStream<T> getInputStream() { return _input; }
@Override
public void setInputStream(IntStream input) { _input = (ASTNodeStream<T>)input; }
/** Always called by generated parsers upon entry to a rule.
* This occurs after the new context has been pushed. Access field
* _ctx get the current context.
*
* This is flexible because users do not have to regenerate parsers
* to get trace facilities.
*
* TODO: this shouldn't be needed now that ParserRuleContext is generic.
*/
@Override
public void enterRule(ParserRuleContext<T> localctx, int ruleIndex) {
_ctx = localctx;
_ctx.start = _input.LT(1);
_ctx.ruleIndex = ruleIndex;
}
@Override
public String getSourceName() {
return _input.getSourceName();
}
// protected T getCurrentInputSymbol(IntStream input) {
// return ((ASTNodeStream)input).LT(1);
// }
protected T getMissingSymbol(IntStream input,
RecognitionException e,
int expectedTokenType)
{
String tokenText =
"<missing "+getTokenNames()[expectedTokenType]+">";
ASTAdaptor<T> adaptor = ((ASTNodeStream<T>)e.getInputStream()).getTreeAdaptor();
return adaptor.create(new CommonToken(expectedTokenType, tokenText));
}
/** Match '.' in tree parser has special meaning. Skip node or
* entire tree if node has children. If children, scan until
* corresponding UP node.
*/
public void matchAny(IntStream ignore) { // ignore stream, copy of input
_errHandler.endErrorCondition(this);
T look = _input.LT(1);
if ( _input.getTreeAdaptor().getChildCount(look)==0 ) {
_input.consume(); // not subtree, consume 1 node and return
return;
}
// current node is a subtree, skip to corresponding UP.
// must count nesting level to get right UP
int level=0;
int tokenType = _input.getTreeAdaptor().getType(look);
while ( tokenType!=Token.EOF && !(tokenType==UP && level==0) ) {
_input.consume();
look = _input.LT(1);
tokenType = _input.getTreeAdaptor().getType(look);
if ( tokenType == DOWN ) {
level++;
}
else if ( tokenType == UP ) {
level--;
}
}
_input.consume(); // consume UP
}
/** We have DOWN/UP nodes in the stream that have no line info; override.
* plus we want to alter the exception type. Don't try to recover
* from tree parser errors inline...
*/
protected T recoverFromMismatchedToken(IntStream input,
int ttype)
throws RecognitionException
{
//throw new MismatchedTreeNodeException(ttype, (TreeNodeStream)input);
return null;
}
/** Prefix error message with the grammar name because message is
* always intended for the programmer because the parser built
* the input tree not the user.
public String getErrorHeader(RecognitionException e) {
// todo: might not have token; use node?
int line = e.offendingToken.getLine();
int charPositionInLine = e.offendingToken.getCharPositionInLine();
return getGrammarFileName()+": node from "+
(e.approximateLineInfo?"after ":"")+"line "+line+":"+charPositionInLine;
}
*/
/** Tree parsers parse nodes they usually have a token object as
* payload. Set the exception token and do the default behavior.
public String getErrorMessage(RecognitionException e, String[] tokenNames) {
if ( this instanceof TreeParser ) {
ASTAdaptor adaptor = ((ASTNodeStream)e.input).getTreeAdaptor();
e.offendingToken = adaptor.getToken(e.offendingNode);
if ( e.offendingToken ==null ) { // could be an UP/DOWN node
e.offendingToken = new CommonToken(adaptor.getType(e.offendingNode),
adaptor.getText(e.offendingNode));
}
}
return super.getErrorMessage(e);
}
*/
/** Check if current node in input has a context. Context means sequence
* of nodes towards root of tree. For example, you might say context
* is "MULT" which means my parent must be MULT. "CLASS VARDEF" says
* current node must be child of a VARDEF and whose parent is a CLASS node.
* You can use "..." to mean zero-or-more nodes. "METHOD ... VARDEF"
* means my parent is VARDEF and somewhere above that is a METHOD node.
* The first node in the context is not necessarily the root. The context
* matcher stops matching and returns true when it runs out of context.
* There is no way to force the first node to be the root.
*/
@Override
public boolean inContext(String context) {
return inContext(_input.getTreeAdaptor(), getTokenNames(), _input.LT(1), context);
}
/** The worker for inContext. It's static and full of parameters for
* testing purposes.
*/
public static <T> boolean inContext(ASTAdaptor<T> adaptor,
String[] tokenNames,
T t,
String context)
{
Matcher dotdotMatcher = dotdotPattern.matcher(context);
Matcher doubleEtcMatcher = doubleEtcPattern.matcher(context);
if ( dotdotMatcher.find() ) { // don't allow "..", must be "..."
throw new IllegalArgumentException("invalid syntax: ..");
}
if ( doubleEtcMatcher.find() ) { // don't allow double "..."
throw new IllegalArgumentException("invalid syntax: ... ...");
}
context = context.replaceAll("\\.\\.\\.", " ... "); // ensure spaces around ...
context = context.trim();
String[] nodes = context.split("\\s+");
int ni = nodes.length-1;
t = adaptor.getParent(t);
while ( ni>=0 && t!=null ) {
if ( nodes[ni].equals("...") ) {
// walk upwards until we see nodes[ni-1] then continue walking
if ( ni==0 ) return true; // ... at start is no-op
String goal = nodes[ni-1];
T ancestor = getAncestor(adaptor, tokenNames, t, goal);
if ( ancestor==null ) return false;
t = ancestor;
ni--;
}
String name = tokenNames[adaptor.getType(t)];
if ( !name.equals(nodes[ni]) ) {
//System.err.println("not matched: "+nodes[ni]+" at "+t);
return false;
}
// advance to parent and to previous element in context node list
ni--;
t = adaptor.getParent(t);
}
if ( t==null && ni>=0 ) return false; // at root but more nodes to match
return true;
}
/** Helper for static inContext */
protected static <T> T getAncestor(ASTAdaptor<T> adaptor, String[] tokenNames, T t, String goal) {
while ( t!=null ) {
String name = tokenNames[adaptor.getType(t)];
if ( name.equals(goal) ) return t;
t = adaptor.getParent(t);
}
return null;
}
// public void traceIn(String ruleName, int ruleIndex) {
// super.traceIn(ruleName, ruleIndex, input.LT(1));
// }
//
// public void traceOut(String ruleName, int ruleIndex) {
// super.traceOut(ruleName, ruleIndex, input.LT(1));
// }
}

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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
public class TreePatternLexer {
public static final int EOF = -1;
public static final int BEGIN = 1;
public static final int END = 2;
public static final int ID = 3;
public static final int ARG = 4;
public static final int PERCENT = 5;
public static final int COLON = 6;
public static final int DOT = 7;
/** The tree pattern to lex like "(A B C)" */
protected String pattern;
/** Index into input string */
protected int p = -1;
/** Current char */
protected int c;
/** How long is the pattern in char? */
protected int n;
/** Set when token type is ID or ARG (name mimics Java's StreamTokenizer) */
public StringBuffer sval = new StringBuffer();
public boolean error = false;
public TreePatternLexer(String pattern) {
this.pattern = pattern;
this.n = pattern.length();
consume();
}
public int nextToken() {
sval.setLength(0); // reset, but reuse buffer
while ( c != EOF ) {
if ( c==' ' || c=='\n' || c=='\r' || c=='\t' ) {
consume();
continue;
}
if ( (c>='a' && c<='z') || (c>='A' && c<='Z') || c=='_' ) {
sval.append((char)c);
consume();
while ( (c>='a' && c<='z') || (c>='A' && c<='Z') ||
(c>='0' && c<='9') || c=='_' )
{
sval.append((char)c);
consume();
}
return ID;
}
if ( c=='(' ) {
consume();
return BEGIN;
}
if ( c==')' ) {
consume();
return END;
}
if ( c=='%' ) {
consume();
return PERCENT;
}
if ( c==':' ) {
consume();
return COLON;
}
if ( c=='.' ) {
consume();
return DOT;
}
if ( c=='[' ) { // grab [x] as a string, returning x
consume();
while ( c!=']' ) {
if ( c=='\\' ) {
consume();
if ( c!=']' ) {
sval.append('\\');
}
sval.append((char)c);
}
else {
sval.append((char)c);
}
consume();
}
consume();
return ARG;
}
consume();
error = true;
return EOF;
}
return EOF;
}
protected void consume() {
p++;
if ( p>=n ) {
c = EOF;
}
else {
c = pattern.charAt(p);
}
}
}

156
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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
public class TreePatternParser {
protected TreePatternLexer tokenizer;
protected int ttype;
protected TreeWizard<?> wizard;
// TODO: would be nice to use ASTAdaptor<TreeWizard.TreePattern>...
protected ASTAdaptor<CommonAST> adaptor;
public TreePatternParser(TreePatternLexer tokenizer, TreeWizard<?> wizard, ASTAdaptor<CommonAST> adaptor) {
this.tokenizer = tokenizer;
this.wizard = wizard;
this.adaptor = adaptor;
ttype = tokenizer.nextToken(); // kickstart
}
public TreeWizard.TreePattern pattern() {
if ( ttype==TreePatternLexer.BEGIN ) {
return parseTree();
}
else if ( ttype==TreePatternLexer.ID ) {
TreeWizard.TreePattern node = parseNode();
if ( ttype==TreePatternLexer.EOF ) {
return node;
}
return null; // extra junk on end
}
return null;
}
public TreeWizard.TreePattern parseTree() {
if ( ttype != TreePatternLexer.BEGIN ) {
throw new RuntimeException("no BEGIN");
}
ttype = tokenizer.nextToken();
TreeWizard.TreePattern root = parseNode();
if ( root==null ) {
return null;
}
while ( ttype==TreePatternLexer.BEGIN ||
ttype==TreePatternLexer.ID ||
ttype==TreePatternLexer.PERCENT ||
ttype==TreePatternLexer.DOT )
{
if ( ttype==TreePatternLexer.BEGIN ) {
TreeWizard.TreePattern subtree = parseTree();
adaptor.addChild(root, subtree);
}
else {
TreeWizard.TreePattern child = parseNode();
if ( child==null ) {
return null;
}
adaptor.addChild(root, child);
}
}
if ( ttype != TreePatternLexer.END ) {
throw new RuntimeException("no END");
}
ttype = tokenizer.nextToken();
return root;
}
public TreeWizard.TreePattern parseNode() {
// "%label:" prefix
String label = null;
if ( ttype == TreePatternLexer.PERCENT ) {
ttype = tokenizer.nextToken();
if ( ttype != TreePatternLexer.ID ) {
return null;
}
label = tokenizer.sval.toString();
ttype = tokenizer.nextToken();
if ( ttype != TreePatternLexer.COLON ) {
return null;
}
ttype = tokenizer.nextToken(); // move to ID following colon
}
// Wildcard?
if ( ttype == TreePatternLexer.DOT ) {
ttype = tokenizer.nextToken();
Token wildcardPayload = new CommonToken(0, ".");
TreeWizard.TreePattern node =
new TreeWizard.WildcardTreePattern(wildcardPayload);
if ( label!=null ) {
node.label = label;
}
return node;
}
// "ID" or "ID[arg]"
if ( ttype != TreePatternLexer.ID ) {
return null;
}
String tokenName = tokenizer.sval.toString();
ttype = tokenizer.nextToken();
if ( tokenName.equals("nil") ) {
return (TreeWizard.TreePattern)adaptor.nil();
}
String text = tokenName;
// check for arg
String arg = null;
if ( ttype == TreePatternLexer.ARG ) {
arg = tokenizer.sval.toString();
text = arg;
ttype = tokenizer.nextToken();
}
// create node
int treeNodeType = wizard.getTokenType(tokenName);
if ( treeNodeType== Token.INVALID_TYPE ) {
return null;
}
TreeWizard.TreePattern node;
node = (TreeWizard.TreePattern)adaptor.create(treeNodeType, text);
if ( label!=null && node.getClass()==TreeWizard.TreePattern.class ) {
node.label = label;
}
if ( arg!=null && node.getClass()==TreeWizard.TreePattern.class ) {
node.hasTextArg = true;
}
return node;
}
}

71
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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
/** Do a depth first walk of a tree, applying pre() and post() actions
* as we discover and finish nodes.
*/
public class TreeVisitor<T> {
protected ASTAdaptor<T> adaptor;
public TreeVisitor(ASTAdaptor<T> adaptor) {
this.adaptor = adaptor;
}
public TreeVisitor() { this((ASTAdaptor<T>)new CommonASTAdaptor()); }
/** Visit every node in tree t and trigger an action for each node
* before/after having visited all of its children.
* Execute both actions even if t has no children.
* If a child visit yields a new child, it can update its
* parent's child list or just return the new child. The
* child update code works even if the child visit alters its parent
* and returns the new tree.
*
* Return result of applying post action to this node.
*/
public T visit(T t, TreeVisitorAction<T> action) {
// System.out.println("visit "+((Tree)t).toStringTree());
boolean isNil = adaptor.isNil(t);
if ( action!=null && !isNil ) {
t = action.pre(t); // if rewritten, walk children of new t
}
for (int i=0; i<adaptor.getChildCount(t); i++) {
T child = adaptor.getChild(t, i);
T visitResult = visit(child, action);
T childAfterVisit = adaptor.getChild(t, i);
if ( visitResult != childAfterVisit ) { // result & child differ?
adaptor.setChild(t, i, visitResult);
}
}
if ( action!=null && !isNil ) t = action.post(t);
return t;
}
}

48
runtime/Java/src/org/antlr/v4/runtime/tree/TreeVisitorAction.java
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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
/** How to execute code for node t when a visitor visits node t. Execute
* pre() before visiting children and execute post() after visiting children.
*/
public interface TreeVisitorAction<T> {
/** Execute an action before visiting children of t. Return t or
* a rewritten t. It is up to the visitor to decide what to do
* with the return value. Children of returned value will be
* visited if using TreeVisitor.visit().
*/
public T pre(T t);
/** Execute an action after visiting children of t. Return t or
* a rewritten t. It is up to the visitor to decide what to do
* with the return value.
*/
public T post(T t);
}

535
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/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.misc.Nullable;
import org.antlr.v4.runtime.Token;
import java.util.*;
/** Build and navigate trees with this object. Must know about the names
* of tokens so you have to pass in a map or array of token names (from which
* this class can build the map). I.e., Token DECL means nothing unless the
* class can translate it to a token type.
*
* In order to create nodes and navigate, this class needs a ASTAdaptor.
*
* This class can build a token type -> node index for repeated use or for
* iterating over the various nodes with a particular type.
*
* This class works in conjunction with the ASTAdaptor rather than moving
* all this functionality into the adaptor. An adaptor helps build and
* navigate trees using methods. This class helps you do it with string
* patterns like "(A B C)". You can create a tree from that pattern or
* match subtrees against it.
*/
public class TreeWizard<T> {
protected ASTAdaptor<T> adaptor;
protected Map<String, Integer> tokenNameToTypeMap;
public interface ContextVisitor<T> {
// TODO: should this be called visit or something else?
public void visit(T t, Object parent, int childIndex, @Nullable Map<String, T> labels);
}
public static abstract class Visitor<T> implements ContextVisitor<T> {
@Override
public void visit(T t, Object parent, int childIndex, Map<String, T> labels) {
visit(t);
}
public abstract void visit(T t);
}
/** When using %label:TOKENNAME in a tree for parse(), we must
* track the label.
*/
public static class TreePattern extends CommonAST {
public String label;
public boolean hasTextArg;
public TreePattern(Token payload) {
super(payload);
}
public String toString() {
if ( label!=null ) {
return "%"+label+":"+super.toString();
}
else {
return super.toString();
}
}
}
public static class WildcardTreePattern extends TreePattern {
public WildcardTreePattern(Token payload) {
super(payload);
}
}
/** This adaptor creates TreePattern objects for use during scan() */
public static class TreePatternASTAdaptor extends CommonASTAdaptor {
public CommonAST create(Token payload) {
return new TreePattern(payload);
}
}
// TODO: build indexes for the wizard
/** During fillBuffer(), we can make a reverse index from a set
* of token types of interest to the list of indexes into the
* node stream. This lets us convert a node pointer to a
* stream index semi-efficiently for a list of interesting
* nodes such as function definition nodes (you'll want to seek
* to their bodies for an interpreter). Also useful for doing
* dynamic searches; i.e., go find me all PLUS nodes.
protected Map tokenTypeToStreamIndexesMap;
/** If tokenTypesToReverseIndex set to INDEX_ALL then indexing
* occurs for all token types.
public static final Set INDEX_ALL = new HashSet();
/** A set of token types user would like to index for faster lookup.
* If this is INDEX_ALL, then all token types are tracked. If null,
* then none are indexed.
protected Set tokenTypesToReverseIndex = null;
*/
public TreeWizard(ASTAdaptor<T> adaptor) {
this.adaptor = adaptor;
}
public TreeWizard(ASTAdaptor<T> adaptor, Map<String, Integer> tokenNameToTypeMap) {
this.adaptor = adaptor;
this.tokenNameToTypeMap = tokenNameToTypeMap;
}
public TreeWizard(ASTAdaptor<T> adaptor, String[] tokenNames) {
this.adaptor = adaptor;
this.tokenNameToTypeMap = computeTokenTypes(tokenNames);
}
public TreeWizard(String[] tokenNames) {
this((ASTAdaptor<T>)new TreePatternASTAdaptor(), tokenNames);
}
/** Compute a Map<String, Integer> that is an inverted index of
* tokenNames (which maps int token types to names).
*/
public Map<String, Integer> computeTokenTypes(String[] tokenNames) {
Map<String, Integer> m = new HashMap<String, Integer>();
if ( tokenNames==null ) {
return m;
}
for (int ttype = Token.MIN_TOKEN_TYPE; ttype < tokenNames.length; ttype++) {
String name = tokenNames[ttype];
m.put(name, ttype);
}
return m;
}
/** Using the map of token names to token types, return the type. */
public int getTokenType(String tokenName) {
if ( tokenNameToTypeMap==null ) {
return Token.INVALID_TYPE;
}
Integer ttypeI = tokenNameToTypeMap.get(tokenName);
if ( ttypeI!=null ) {
return ttypeI;
}
return Token.INVALID_TYPE;
}
/** Walk the entire tree and make a node name to nodes mapping.
* For now, use recursion but later nonrecursive version may be
* more efficient. Returns Map<Integer, List> where the List is
* of your AST node type. The Integer is the token type of the node.
*
* TODO: save this index so that find and visit are faster
*/
public Map<Integer, List<T>> index(T t) {
Map<Integer, List<T>> m = new HashMap<Integer, List<T>>();
_index(t, m);
return m;
}
/** Do the work for index */
protected void _index(T t, Map<Integer, List<T>> m) {
if ( t==null ) {
return;
}
int ttype = adaptor.getType(t);
List<T> elements = m.get(ttype);
if ( elements==null ) {
elements = new ArrayList<T>();
m.put(ttype, elements);
}
elements.add(t);
int n = adaptor.getChildCount(t);
for (int i=0; i<n; i++) {
T child = adaptor.getChild(t, i);
_index(child, m);
}
}
/** Return a List of tree nodes with token type ttype */
public List<T> find(T t, int ttype) {
final List<T> nodes = new ArrayList<T>();
visit(t, ttype, new TreeWizard.Visitor<T>() {
@Override
public void visit(T t) {
nodes.add(t);
}
});
return nodes;
}
/** Return a List of subtrees matching pattern. */
public List<T> find(T t, String pattern) {
final List<T> subtrees = new ArrayList<T>();
// Create a TreePattern from the pattern
TreePatternLexer tokenizer = new TreePatternLexer(pattern);
TreePatternParser parser =
new TreePatternParser(tokenizer, this, new TreePatternASTAdaptor());
final TreePattern tpattern = parser.pattern();
// don't allow invalid patterns
if ( tpattern==null ||
tpattern.isNil() ||
tpattern.getClass()==WildcardTreePattern.class )
{
return null;
}
int rootTokenType = tpattern.getType();
visit(t, rootTokenType, new TreeWizard.ContextVisitor<T>() {
@Override
public void visit(T t, Object parent, int childIndex, Map<String, T> labels) {
if ( _parse(t, tpattern, null) ) {
subtrees.add(t);
}
}
});
return subtrees;
}
public T findFirst(T t, int ttype) {
return null;
}
public T findFirst(T t, String pattern) {
return null;
}
/** Visit every ttype node in t, invoking the visitor. This is a quicker
* version of the general visit(t, pattern) method. The labels arg
* of the visitor action method is never set (it's null) since using
* a token type rather than a pattern doesn't let us set a label.
*/
public void visit(T t, int ttype, ContextVisitor<T> visitor) {
_visit(t, null, 0, ttype, visitor);
}
/** Do the recursive work for visit */
protected void _visit(T t, @Nullable Object parent, int childIndex, int ttype, ContextVisitor<T> visitor) {
if ( t==null ) {
return;
}
if ( adaptor.getType(t)==ttype ) {
visitor.visit(t, parent, childIndex, null);
}
int n = adaptor.getChildCount(t);
for (int i=0; i<n; i++) {
T child = adaptor.getChild(t, i);
_visit(child, t, i, ttype, visitor);
}
}
/** For all subtrees that match the pattern, execute the visit action.
* The implementation uses the root node of the pattern in combination
* with visit(t, ttype, visitor) so nil-rooted patterns are not allowed.
* Patterns with wildcard roots are also not allowed.
*/
public void visit(T t, final String pattern, final ContextVisitor<T> visitor) {
// Create a TreePattern from the pattern
TreePatternLexer tokenizer = new TreePatternLexer(pattern);
TreePatternParser parser =
new TreePatternParser(tokenizer, this, new TreePatternASTAdaptor());
final TreePattern tpattern = parser.pattern();
// don't allow invalid patterns
if ( tpattern==null ||
tpattern.isNil() ||
tpattern.getClass()==WildcardTreePattern.class )
{
return;
}
final Map<String, T> labels = new HashMap<String, T>(); // reused for each _parse
int rootTokenType = tpattern.getType();
visit(t, rootTokenType, new TreeWizard.ContextVisitor<T>() {
@Override
public void visit(T t, Object parent, int childIndex, Map<String, T> unusedlabels) {
// the unusedlabels arg is null as visit on token type doesn't set.
labels.clear();
if ( _parse(t, tpattern, labels) ) {
visitor.visit(t, parent, childIndex, labels);
}
}
});
}
/** Given a pattern like (ASSIGN %lhs:ID %rhs:.) with optional labels
* on the various nodes and '.' (dot) as the node/subtree wildcard,
* return true if the pattern matches and fill the labels Map with
* the labels pointing at the appropriate nodes. Return false if
* the pattern is malformed or the tree does not match.
*
* If a node specifies a text arg in pattern, then that must match
* for that node in t.
*
* TODO: what's a better way to indicate bad pattern? Exceptions are a hassle
*/
public boolean parse(T t, String pattern, @Nullable Map<String, T> labels) {
TreePatternLexer tokenizer = new TreePatternLexer(pattern);
TreePatternParser parser =
new TreePatternParser(tokenizer, this, new TreePatternASTAdaptor());
TreePattern tpattern = parser.pattern();
/*
System.out.println("t="+((Tree)t).toStringTree());
System.out.println("scant="+tpattern.toStringTree());
*/
boolean matched = _parse(t, tpattern, labels);
return matched;
}
public boolean parse(T t, String pattern) {
return parse(t, pattern, null);
}
/** Do the work for parse. Check to see if the t2 pattern fits the
* structure and token types in t1. Check text if the pattern has
* text arguments on nodes. Fill labels map with pointers to nodes
* in tree matched against nodes in pattern with labels.
*/
protected boolean _parse(T t1, TreePattern tpattern, @Nullable Map<String, T> labels) {
// make sure both are non-null
if ( t1==null || tpattern==null ) {
return false;
}
// check roots (wildcard matches anything)
if ( tpattern.getClass() != WildcardTreePattern.class ) {
if ( adaptor.getType(t1) != tpattern.getType() ) return false;
// if pattern has text, check node text
if ( tpattern.hasTextArg && !adaptor.getText(t1).equals(tpattern.getText()) ) {
return false;
}
}
if ( tpattern.label!=null && labels!=null ) {
// map label in pattern to node in t1
labels.put(tpattern.label, t1);
}
// check children
int n1 = adaptor.getChildCount(t1);
int n2 = tpattern.getChildCount();
if ( n1 != n2 ) {
return false;
}
for (int i=0; i<n1; i++) {
T child1 = adaptor.getChild(t1, i);
TreePattern child2 = (TreePattern)tpattern.getChild(i);
if ( !_parse(child1, child2, labels) ) {
return false;
}
}
return true;
}
/** Create a tree or node from the indicated tree pattern that closely
* follows ANTLR tree grammar tree element syntax:
*
* (root child1 ... child2).
*
* You can also just pass in a node: ID
*
* Any node can have a text argument: ID[foo]
* (notice there are no quotes around foo--it's clear it's a string).
*
* nil is a special name meaning "give me a nil node". Useful for
* making lists: (nil A B C) is a list of A B C.
*/
public TreePattern create(String pattern) {
TreePatternLexer tokenizer = new TreePatternLexer(pattern);
TreePatternParser parser = new TreePatternParser(tokenizer, this, new TreePatternASTAdaptor());
TreePattern t = parser.pattern();
return t;
}
/** Compare t1 and t2; return true if token types/text, structure match exactly.
* The trees are examined in their entirety so that (A B) does not match
* (A B C) nor (A (B C)).
// TODO: allow them to pass in a comparator
* TODO: have a version that is nonstatic so it can use instance adaptor
*
* I cannot rely on the tree node's equals() implementation as I make
* no constraints at all on the node types nor interface etc...
*/
public static <T> boolean equals(T t1, T t2, ASTAdaptor<T> adaptor) {
return _equals(t1, t2, adaptor);
}
/** Compare type, structure, and text of two trees, assuming adaptor in
* this instance of a TreeWizard.
*/
public boolean equals(T t1, T t2) {
return _equals(t1, t2, adaptor);
}
protected static <T> boolean _equals(T t1, T t2, ASTAdaptor<T> adaptor) {
// make sure both are non-null
if ( t1==null || t2==null ) {
return false;
}
// check roots
if ( adaptor.getType(t1) != adaptor.getType(t2) ) {
return false;
}
if ( !adaptor.getText(t1).equals(adaptor.getText(t2)) ) {
return false;
}
// check children
int n1 = adaptor.getChildCount(t1);
int n2 = adaptor.getChildCount(t2);
if ( n1 != n2 ) {
return false;
}
for (int i=0; i<n1; i++) {
T child1 = adaptor.getChild(t1, i);
T child2 = adaptor.getChild(t2, i);
if ( !_equals(child1, child2, adaptor) ) {
return false;
}
}
return true;
}
// TODO: next stuff taken from CommonASTNodeStream
/** Given a node, add this to the reverse index tokenTypeToStreamIndexesMap.
* You can override this method to alter how indexing occurs. The
* default is to create a
*
* Map<Integer token type,ArrayList<Integer stream index>>
*
* This data structure allows you to find all nodes with type INT in order.
*
* If you really need to find a node of type, say, FUNC quickly then perhaps
*
* Map<Integertoken type,Map<Object tree node,Integer stream index>>
*
* would be better for you. The interior maps map a tree node to
* the index so you don't have to search linearly for a specific node.
*
* If you change this method, you will likely need to change
* getNodeIndex(), which extracts information.
protected void fillReverseIndex(Object node, int streamIndex) {
//System.out.println("revIndex "+node+"@"+streamIndex);
if ( tokenTypesToReverseIndex==null ) {
return; // no indexing if this is empty (nothing of interest)
}
if ( tokenTypeToStreamIndexesMap==null ) {
tokenTypeToStreamIndexesMap = new HashMap(); // first indexing op
}
int tokenType = adaptor.getType(node);
Integer tokenTypeI = new Integer(tokenType);
if ( !(tokenTypesToReverseIndex==INDEX_ALL ||
tokenTypesToReverseIndex.contains(tokenTypeI)) )
{
return; // tokenType not of interest
}
Integer streamIndexI = new Integer(streamIndex);
ArrayList indexes = (ArrayList)tokenTypeToStreamIndexesMap.get(tokenTypeI);
if ( indexes==null ) {
indexes = new ArrayList(); // no list yet for this token type
indexes.add(streamIndexI); // not there yet, add
tokenTypeToStreamIndexesMap.put(tokenTypeI, indexes);
}
else {
if ( !indexes.contains(streamIndexI) ) {
indexes.add(streamIndexI); // not there yet, add
}
}
}
/** Track the indicated token type in the reverse index. Call this
* repeatedly for each type or use variant with Set argument to
* set all at once.
* @param tokenType
public void reverseIndex(int tokenType) {
if ( tokenTypesToReverseIndex==null ) {
tokenTypesToReverseIndex = new HashSet();
}
else if ( tokenTypesToReverseIndex==INDEX_ALL ) {
return;
}
tokenTypesToReverseIndex.add(new Integer(tokenType));
}
/** Track the indicated token types in the reverse index. Set
* to INDEX_ALL to track all token types.
public void reverseIndex(Set tokenTypes) {
tokenTypesToReverseIndex = tokenTypes;
}
/** Given a node pointer, return its index into the node stream.
* This is not its Token stream index. If there is no reverse map
* from node to stream index or the map does not contain entries
* for node's token type, a linear search of entire stream is used.
*
* Return -1 if exact node pointer not in stream.
public int getNodeIndex(Object node) {
//System.out.println("get "+node);
if ( tokenTypeToStreamIndexesMap==null ) {
return getNodeIndexLinearly(node);
}
int tokenType = adaptor.getType(node);
Integer tokenTypeI = new Integer(tokenType);
ArrayList indexes = (ArrayList)tokenTypeToStreamIndexesMap.get(tokenTypeI);
if ( indexes==null ) {
//System.out.println("found linearly; stream index = "+getNodeIndexLinearly(node));
return getNodeIndexLinearly(node);
}
for (int i = 0; i < indexes.size(); i++) {
Integer streamIndexI = (Integer)indexes.get(i);
Object n = get(streamIndexI.intValue());
if ( n==node ) {
//System.out.println("found in index; stream index = "+streamIndexI);
return streamIndexI.intValue(); // found it!
}
}
return -1;
}
*/
}

201
runtime/Java/src/org/antlr/v4/runtime/tree/Trees.java
View File

@ -29,17 +29,22 @@
package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.BaseRecognizer;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.tree.gui.TreePostScriptGenerator;
import java.io.*;
import java.util.*;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/** A set of utility routines useful for all kinds of ANTLR trees */
public class Trees {
public static String getPS(Tree t, BaseRecognizer<?> recog,
public static String getPS(Tree t, BaseRecognizer recog,
String fontName, int fontSize)
{
TreePostScriptGenerator psgen =
@ -47,11 +52,11 @@ public class Trees {
return psgen.getPS();
}
public static String getPS(Tree t, BaseRecognizer<?> recog) {
public static String getPS(Tree t, BaseRecognizer recog) {
return getPS(t, recog, "Helvetica", 11);
}
public static void writePS(Tree t, BaseRecognizer<?> recog,
public static void writePS(Tree t, BaseRecognizer recog,
String fileName,
String fontName, int fontSize)
throws IOException
@ -63,7 +68,7 @@ public class Trees {
bw.close();
}
public static void writePS(Tree t, BaseRecognizer<?> recog, String fileName)
public static void writePS(Tree t, BaseRecognizer recog, String fileName)
throws IOException
{
writePS(t, recog, fileName, "Helvetica", 11);
@ -73,29 +78,21 @@ public class Trees {
* node payloads to get the text for the nodes. Detect
* parse trees and extract data appropriately.
*/
public static String toStringTree(Tree t, BaseRecognizer<?> recog) {
public static String toStringTree(Tree t, BaseRecognizer recog) {
if ( t.getChildCount()==0 ) return getNodeText(t, recog);
StringBuilder buf = new StringBuilder();
boolean nilRoot = t instanceof AST && ((AST)t).isNil();
if ( !nilRoot ) {
buf.append("(");
buf.append(getNodeText(t, recog));
buf.append(' ');
}
for (int i = 0; i<t.getChildCount(); i++) {
if ( i>0 ) buf.append(' ');
buf.append(toStringTree(t.getChild(i), recog));
}
if ( !nilRoot ) {
buf.append(")");
}
return buf.toString();
}
public static <Symbol> String getNodeText(Tree t, BaseRecognizer<Symbol> recog) {
if ( t instanceof AST ) {
return t.toString();
}
public static <Symbol> String getNodeText(Tree t, BaseRecognizer recog) {
if ( recog!=null ) {
if ( t instanceof ParseTree.RuleNode ) {
int ruleIndex = ((ParseTree.RuleNode)t).getRuleContext().getRuleIndex();
@ -112,7 +109,7 @@ public class Trees {
}
}
}
// not AST and no recog for rule names
// no recog for rule names
Object payload = t.getPayload();
if ( payload instanceof Token ) {
return ((Token)payload).getText();
@ -120,16 +117,6 @@ public class Trees {
return t.getPayload().toString();
}
/** Walk upwards and get first ancestor with this token type. */
public static AST getAncestor(AST t, int ttype) {
t = t.getParent();
while ( t!=null ) {
if ( t.getType()==ttype ) return t;
t = t.getParent();
}
return null;
}
/** Return a list of all ancestors of this node. The first node of
* list is the root and the last is the parent of this node.
*/
@ -145,162 +132,4 @@ public class Trees {
return ancestors;
}
public static AST getFirstChildWithType(AST t, int type) {
for (int i = 0; i<t.getChildCount(); i++) {
AST c = (AST)t.getChild(i);
if ( c.getType()==type ) {
return c;
}
}
return null;
}
/** Delete children from start to stop and replace with t even if t is
* a list (nil-root tree). num of children can increase or decrease.
* For huge child lists, inserting children can force walking rest of
* children to set their childindex; could be slow.
*/
public static void replaceChildren(BaseAST tree, int startChildIndex, int stopChildIndex, Object t) {
/*
System.out.println("replaceChildren "+startChildIndex+", "+stopChildIndex+
" with "+((BaseTree)t).toStringTree());
System.out.println("in="+toStringTree());
*/
if ( tree.getChildCount()==0 ) {
throw new IllegalArgumentException("indexes invalid; no children in list");
}
int replacingHowMany = stopChildIndex - startChildIndex + 1;
int replacingWithHowMany;
BaseAST newTree = (BaseAST)t;
List<BaseAST> newChildren;
// normalize to a list of children to add: newChildren
if ( newTree.isNil() ) {
newChildren = newTree.children;
}
else {
newChildren = new ArrayList<BaseAST>(1);
newChildren.add(newTree);
}
replacingWithHowMany = newChildren.size();
int numNewChildren = newChildren.size();
int delta = replacingHowMany - replacingWithHowMany;
// if same number of nodes, do direct replace
if ( delta == 0 ) {
int j = 0; // index into new children
for (int i=startChildIndex; i<=stopChildIndex; i++) {
BaseAST child = newChildren.get(j);
tree.setChild(i, child);
child.setParent(tree);
child.setChildIndex(i);
j++;
}
}
else if ( delta > 0 ) { // fewer new nodes than there were
// set children and then delete extra
for (int j=0; j<numNewChildren; j++) {
tree.setChild(startChildIndex + j, newChildren.get(j));
}
int indexToDelete = startChildIndex+numNewChildren;
for (int c=indexToDelete; c<=stopChildIndex; c++) {
// delete same index, shifting everybody down each time
tree.children.remove(indexToDelete);
}
tree.freshenParentAndChildIndexes(startChildIndex);
}
else { // more new nodes than were there before
// fill in as many children as we can (replacingHowMany) w/o moving data
for (int j=0; j<replacingHowMany; j++) {
tree.children.set(startChildIndex+j, newChildren.get(j));
}
int numToInsert = replacingWithHowMany-replacingHowMany;
for (int j=replacingHowMany; j<replacingWithHowMany; j++) {
tree.children.add(startChildIndex+j, newChildren.get(j));
}
tree.freshenParentAndChildIndexes(startChildIndex);
}
//System.out.println("out="+toStringTree());
}
public static <Symbol> Symbol dupTree(ASTAdaptor<Symbol> adaptor, Symbol t, Symbol parent) {
if ( t==null ) {
return null;
}
Symbol newTree = adaptor.dupNode(t);
// ensure new subtree root has parent/child index set
adaptor.setChildIndex(newTree, adaptor.getChildIndex(t)); // same index in new tree
adaptor.setParent(newTree, parent);
int n = adaptor.getChildCount(t);
for (int i = 0; i < n; i++) {
Symbol child = adaptor.getChild(t, i);
Symbol newSubTree = dupTree(adaptor, child, t);
adaptor.addChild(newTree, newSubTree);
}
return newTree;
}
/** For every node in this subtree, make sure it's start/stop token's
* are set. Walk depth first, visit bottom up. Only updates nodes
* with at least one token index < 0.
*/
public static void setUnknownTokenBoundaries(CommonAST t) {
if ( t.children==null ) {
if ( t.startIndex<0 || t.stopIndex<0 ) {
t.startIndex = t.stopIndex = t.token.getTokenIndex();
}
return;
}
int n = t.getChildCount();
for (int i = 0; i < n; i++) {
setUnknownTokenBoundaries(t.getChild(i));
}
if ( t.startIndex>=0 && t.stopIndex>=0 ) return; // already set
if ( t.getChildCount() > 0 ) {
CommonAST firstChild = t.getChild(0);
CommonAST lastChild = t.getChild(t.getChildCount()-1);
t.startIndex = firstChild.getTokenStartIndex();
t.stopIndex = lastChild.getTokenStopIndex();
}
}
public static AST getFirstDescendantWithType(AST t, final int type) {
return getFirstDescendantWithType(t, new TreeSet<Integer>() {{add(type);}} );
}
// TODO: don't include this node!!
public static AST getFirstDescendantWithType(AST t, Set<Integer> types) {
if ( types.contains(t.getType()) ) return t;
if ( t.getChildCount()==0 ) return null;
int n = t.getChildCount();
for (int i = 0; i < n; i++) {
AST c = (AST)t.getChild(i);
if ( types.contains(c.getType()) ) return c;
AST d = getFirstDescendantWithType(c, types);
if ( d!=null ) return d;
}
return null;
}
public static void sanityCheckParentAndChildIndexes(BaseAST t) {
sanityCheckParentAndChildIndexes(t, null, -1);
}
public static void sanityCheckParentAndChildIndexes(BaseAST t, AST parent, int i) {
if ( parent!=t.getParent() ) {
throw new IllegalStateException("parents don't match; expected "+
parent+" found "+t.getParent());
}
if ( i!=t.getChildIndex() ) {
throw new IllegalStateException("child index of "+t.toStringTree()+
" doesn't match in "+
parent.toStringTree()+
"; expected "+i+" found "+
t.getChildIndex());
}
int n = t.getChildCount();
for (int c = 0; c < n; c++) {
BaseAST child = t.getChild(c);
sanityCheckParentAndChildIndexes(child, t, c);
}
}
}

40
runtime/Java/src/org/antlr/v4/runtime/tree/gui/TreePostScriptGenerator.java
View File

@ -35,15 +35,11 @@ import org.abego.treelayout.TreeForTreeLayout;
import org.abego.treelayout.TreeLayout;
import org.abego.treelayout.util.DefaultConfiguration;
import org.antlr.v4.runtime.BaseRecognizer;
import org.antlr.v4.runtime.CommonToken;
import org.antlr.v4.runtime.tree.CommonAST;
import org.antlr.v4.runtime.tree.ParseTree;
import org.antlr.v4.runtime.tree.Tree;
import org.antlr.v4.runtime.tree.Trees;
import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
public class TreePostScriptGenerator {
public class VariableExtentProvide implements NodeExtentProvider<Tree> {
@ -75,11 +71,11 @@ public class TreePostScriptGenerator {
protected PostScriptDocument doc;
public TreePostScriptGenerator(BaseRecognizer<?> parser, Tree root) {
public TreePostScriptGenerator(BaseRecognizer parser, Tree root) {
this(parser, root, "CourierNew", 11);
}
public TreePostScriptGenerator(BaseRecognizer<?> parser, Tree root,
public TreePostScriptGenerator(BaseRecognizer parser, Tree root,
String fontName, int fontSize)
{
this.root = root;
@ -167,36 +163,4 @@ public class TreePostScriptGenerator {
this.treeTextProvider = treeTextProvider;
}
public static void main(String[] args) throws IOException {
CommonAST t = new CommonAST(new CommonToken(1, "s"));
CommonAST ifstat = new CommonAST(new CommonToken(1, "ifstat"));
CommonAST iff = new CommonAST(new CommonToken(1, "if"));
CommonAST b = new CommonAST(new CommonToken(1, "("));
CommonAST c = new CommonAST(new CommonToken(1, "expr"));
CommonAST d = new CommonAST(new CommonToken(1, ")"));
CommonAST e = new CommonAST(new CommonToken(1, "assign"));
CommonAST f = new CommonAST(new CommonToken(1, "34"));
CommonAST g = new CommonAST(new CommonToken(1, "a"));
CommonAST h = new CommonAST(new CommonToken(1, "="));
CommonAST i = new CommonAST(new CommonToken(1, "expr"));
CommonAST j = new CommonAST(new CommonToken(1, ";"));
CommonAST k = new CommonAST(new CommonToken(1, "b"));
t.addChild(ifstat);
ifstat.addChild(iff);
ifstat.addChild(b);
ifstat.addChild(c);
ifstat.addChild(d);
ifstat.addChild(e);
c.addChild(f);
e.addChild(g);
e.addChild(h);
e.addChild(i);
e.addChild(j);
i.addChild(k);
Trees.writePS(t, null,
"/Users/parrt/antlr/code/antlr4/main/tool/playground/t.eps",
"ArialNarrow", 11);
// TreePostScriptGenerator psgen = new TreePostScriptGenerator(null, t, "CourierNew", 11);
// System.out.println(psgen.getPS());
}
}

8
runtime/Java/src/org/antlr/v4/runtime/tree/gui/TreeViewer.java
View File

@ -53,9 +53,9 @@ public class TreeViewer extends JComponent {
public static final Color LIGHT_RED = new Color(244, 213, 211);
public static class DefaultTreeTextProvider implements TreeTextProvider {
BaseRecognizer<?> parser;
BaseRecognizer parser;
public DefaultTreeTextProvider(BaseRecognizer<?> parser) {
public DefaultTreeTextProvider(BaseRecognizer parser) {
this.parser = parser;
}
@ -111,9 +111,9 @@ public class TreeViewer extends JComponent {
protected Color borderColor = null;
protected Color textColor = Color.black;
protected BaseRecognizer<?> parser;
protected BaseRecognizer parser;
public TreeViewer(BaseRecognizer<?> parser, Tree tree) {
public TreeViewer(BaseRecognizer parser, Tree tree) {
this.parser = parser;
setTreeTextProvider(new DefaultTreeTextProvider(parser));
boolean useIdentity = true; // compare node identity

2
tool/MIGRATION.txt
View File

@ -13,3 +13,5 @@ Trees
Lexers
* Added [Abc] notation
* unicode rule/token names

2
tool/playground/JavaParser.g
View File

@ -1,4 +1,4 @@
ûparser grammar JavaParser;
parser grammar JavaParser;
options {backtrack=true; memoize=true; tokenVocab=JavaLexer;}
// starting point for parsing a java file

3
tool/playground/TestR.java
View File

@ -30,7 +30,6 @@
import org.antlr.v4.runtime.ANTLRFileStream;
import org.antlr.v4.runtime.CommonTokenStream;
import org.antlr.v4.runtime.DiagnosticErrorStrategy;
import org.antlr.v4.runtime.Token;
public class TestR {
public static void main(String[] args) throws Exception {
@ -42,7 +41,7 @@ public class TestR {
// }
RParser p = new RParser(tokens);
p.setBuildParseTree(true);
p.setErrorHandler(new DiagnosticErrorStrategy<Token>());
p.setErrorHandler(new DiagnosticErrorStrategy());
p.prog();
}
}

203
tool/resources/org/antlr/v4/tool/templates/codegen/Java/Java.stg
View File

@ -27,10 +27,6 @@ import java.util.ArrayList;
<parser>
>>
TreeParserFile(file, parser, namedActions) ::= <<
<ParserFile(...)>
>>
ListenerFile(file, header) ::= <<
<header>
import org.antlr.v4.runtime.tree.*;
@ -64,16 +60,6 @@ Parser(parser, funcs, atn, sempredFuncs, superclass) ::= <<
<Parser_(ctor="parser_ctor", ...)>
>>
TreeParserModel(parser, funcs, atn, sempredFuncs, superclass) ::= <<
<Parser_(ctor="treeparser_ctor",
extras={
@Override
public <ASTLabelType()> match(int ttype) throws RecognitionException {
return (<ASTLabelType()>)super.match(ttype);
\}
}, ...)>
>>
Parser_(parser, funcs, atn, sempredFuncs, ctor, extras, superclass) ::= <<
@SuppressWarnings({"all", "warnings", "unchecked", "unused"})
public class <parser.name> extends <superclass> {
@ -148,13 +134,6 @@ public <p.name>(TokenStream input) {
}
>>
treeparser_ctor(p) ::= <<
public <p.name>(ASTNodeStream\<<ASTLabelType()>\> input) {
super(input);
_interp = new v2ParserATNSimulator\<<ASTLabelType()>\>(this,_ATN);
}
>>
RuleActionFunction(r, actions) ::= <<
public void <r.name>_action(<r.ctxType> _localctx, int actionIndex) {
switch ( actionIndex ) {
@ -379,14 +358,6 @@ case <i>:
Sync(s) ::= "sync(<s.expecting.name>);"
ThrowNoViableAlt(t) ::= "throw new NoViableAltException(this);"
ThrowNoViableTreeAlt(t) ::= <<
/*
NoViableTreeGrammarAltException e<choice.uniqueID> = new NoViableTreeGrammarAltException(this);
_errHandler.reportError(this, e<choice.uniqueID>);
throw e<choice.uniqueID>;
*/
throw new NoViableTreeGrammarAltException(this);
>>
TestSetInline(s) ::= <<
<s.ttypes:{ttype | <s.varName>==<ttype>}; separator=" || ">
@ -396,32 +367,6 @@ cases(ttypes) ::= <<
<ttypes:{t | case <t>:}; separator="\n">
>>
MatchTree(t, root, down, leftActions, kids, rightActions, up) ::= <<
// match tree
<root>
<leftActions>
<if(t.isNullable)>
if ( _input.LA(1)==Token.DOWN ) {
<down>
<kids; separator="\n">
<up>
}
<else>
<down>
<kids; separator="\n">
<up>
<endif>
<rightActions>
>>
MatchDOWN(m) ::= <<
setState(<m.stateNumber>); match(Token.DOWN);
>>
MatchUP(m) ::= <<
setState(<m.stateNumber>); match(Token.UP);
>>
InvokeRule(r, argExprsChunks) ::= <<
setState(<r.stateNumber>); <if(r.labels)><r.labels:{l | <labelref(l)> = }><endif><r.name>(<argExprsChunks>);
>>
@ -462,18 +407,7 @@ setState(<p.stateNumber>);
if (!(<chunks>)) throw new FailedPredicateException(this, <if(p.msg)><p.msg><else><failChunks><endif>);
>>
ParserASTExtensionMembers(s) ::= <<
public ASTAdaptor\<<ASTLabelType()>\> _adaptor = (ASTAdaptor)new CommonASTAdaptor();
>>
ParserASTContextInterface(s) ::= "ASTContext\<<ASTLabelType()>>"
ParserASTTreeFieldDecl(s) ::= "<ASTLabelType()> tree"
ParserASTContextMembers(s) ::= <<
@Override public <ASTLabelType()> getTree() { return tree; }
>>
DefaultParserSuperClass(s) ::= "Parser"
DefaultTreeParserSuperClass(s) ::= "TreeParser\<<ASTLabelType()>>"
ActionText(t) ::= "<t.text>"
ArgRef(a) ::= "_localctx.<a.name>"
@ -488,7 +422,6 @@ SetAttr(s,rhsChunks) ::= "_localctx.<s.name> = <rhsChunks>;"
LexerSetAttr(s,rhsChunks) ::= "<s.name> = <rhsChunks>;"
//SetQAttr(s,rhsChunks) ::= "<s.dict>.<s.name> = <rhsChunks>;"
ASTLabelType() ::= "<file.ASTLabelType; null={Object}>"
TokenLabelType() ::= "<file.TokenLabelType; null={Token}>"
InputSymbolType() ::= "<file.InputSymbolType; null={Token}>"
@ -498,32 +431,18 @@ TokenPropertyRef_line(t) ::= "(_localctx.<t.label>!=null?_localctx.<t.label>.get
TokenPropertyRef_pos(t) ::= "(_localctx.<t.label>!=null?_localctx.<t.label>.getCharPositionInLine():0)"
TokenPropertyRef_channel(t) ::= "(_localctx.<t.label>!=null?_localctx.<t.label>.getChannel():0)"
TokenPropertyRef_index(t) ::= "(_localctx.<t.label>!=null?_localctx.<t.label>.getTokenIndex():0)"
TokenPropertyRef_tree(t) ::= "_localctx.<t.label>_tree"
TokenPropertyRef_int(t) ::= "(_localctx.<t.label>!=null?Integer.valueOf(_localctx.<t.label>.getText()):0)"
RulePropertyRef_start(r) ::= "(_localctx.<r.label>!=null?(_localctx.<r.label>.start):null)"
RulePropertyRef_stop(r) ::= "(_localctx.<r.label>!=null?(_localctx.<r.label>.stop):null)"
RulePropertyRef_tree(r) ::= "(_localctx.<r.label>!=null?(_localctx.<r.label>.tree):null)"
RulePropertyRef_text(r) ::= "(_localctx.<r.label>!=null?_input.toString(_localctx.<r.label>.start,_localctx.<r.label>.stop):null)"
RulePropertyRef_st(r) ::= "(_localctx.<r.label>!=null?_localctx.<r.label>.st:null)"
RulePropertyRef_ctx(r) ::= "_localctx.<r.label>"
ThisRulePropertyRef_start(r) ::= "_localctx.start"
ThisRulePropertyRef_stop(r) ::= "_localctx.stop"
ThisRulePropertyRef_tree(r) ::= "_localctx.tree"
ThisRulePropertyRef_text(r) ::= "_input.toString(_localctx.start, _input.LT(-1))"
ThisRulePropertyRef_st(r) ::= "_localctx.st"
ThisRulePropertyRef_ctx(r) ::= "_localctx"
/*
TreeRulePropertyRef_text(r) ::= <%
(_localctx.<r.label>!=null?
((ASTNodeStream\<<ASTLabelType()>>)_input).toString(_localctx.<r.label>.start,_localctx.<r.label>.stop)
:null
)
%>
*/
NonLocalAttrRef(s) ::= "((<s.ruleName>Context)getInvokingContext(<s.ruleIndex>)).<s.name>"
SetNonLocalAttr(s, rhsChunks) ::=
"((<s.ruleName>Context)getInvokingContext(<s.ruleIndex>)).<s.name> = <rhsChunks>;"
@ -536,9 +455,6 @@ TokenListDecl(t) ::= "List\<Token> <t.name> = new ArrayList\<Token>();"
RuleContextDecl(r) ::= "<r.ctxName> <r.name>;"
RuleContextListDecl(rdecl) ::= "List\<<rdecl.ctxName>> <rdecl.name> = new ArrayList\<<rdecl.ctxName>>();"
NodeDecl(t) ::= "<ASTLabelType()> <t.name>;"
NodeListDecl(t) ::= "List\<<ASTLabelType()>> <t.name> = new ArrayList\<<ASTLabelType()>>();"
/** Default RuleContext type name for a Parser rule */
ParserRuleContext() ::= "ParserRuleContext\<?>"
@ -575,8 +491,6 @@ public static class <s.name> extends <superClass><if(interfaces)> implements <in
}
>>
TreeParserStructDecl ::= StructDecl
AltLabelStructDecl(s,attrs,visitorDispatchMethods) ::= <<
public static class <s.label>Context extends <currentRule.name>Context {
public <s.label>Context(<currentRule.name>Context ctx) { copyFrom(ctx); }
@ -591,17 +505,6 @@ public void <if(method.isEnter)>enter<else>exit<endif>Rule(ParseTreeListener\<<I
}
>>
/*
SwitchedVisitorDispatchMethod(method) ::= <<
public void <if(method.isEnter)>enter<else>exit<endif>Rule(ParseTreeListener\<<InputSymbolType()>\> listener) {
switch ( altNum ) {
<method.listenerNames:{m |
case <i> : ((<parser.grammarName>Listener)listener).<if(method.isEnter)>enter<else>exit<endif><m>(this); break;}; separator="\n">
}
}
>>
*/
AttributeDecl(d) ::= "<d.decl>"
/** If we don't know location of label def x, use this template */
@ -614,112 +517,6 @@ recRuleAltPredicate(ruleName,opPrec) ::= "<opPrec> >= <recRuleArg()>"
recRuleSetResultAction() ::= "$tree=$<ruleName>_primary.tree;"
recRuleSetReturnAction(src,name) ::= "$<name>=$<src>.<name>;"
// AST stuff (TODO: separate?)
RootDecl(d) ::= "<ASTLabelType()> <d.name> = _adaptor.nil();"
RootName(level) ::= "_root<level>"
TokenAST(t) ::= "_adaptor.create(<labelref(t.label)>)"
RuleAST(r) ::= "<labelref(r.label)>.tree"
AssignTreeResult(a) ::= "_localctx.tree = _root0;"
RuleASTCleanup(r) ::= <<
_localctx.tree = _adaptor.rulePostProcessing(_localctx.tree);
_adaptor.setTokenBoundaries(_localctx.tree, _localctx.start, _localctx.stop);
>>
ElementListDecl(d) ::= "List\<<ASTLabelType()>> <d.name> = _adaptor.createElementList();"
ElementListName(elemName) ::= "_track_<elemName>"
ClearElementList(c) ::= "<c.name>.clear();"
TrackRuleElement(e) ::= "<e.name>.add(<labelref(e.label)>.tree);"
TrackTokenElement(e) ::= "<e.name>.add(_adaptor.create(<labelref(e.label)>));"
// REWRITE AST stuff
// assume roots are always locals in tree rewrites
TreeRewrite(tr, locals, preamble, alts) ::= <<
// rewrite: code level= <tr.codeBlockLevel>, tree level = <tr.treeLevel>
<locals; separator="\n">
<preamble; separator="\n">
<alts; separator="else\n">
_localctx.tree = _root0;
>>
RewriteChoice(c, predicate, ops) ::= <<
<if(predicate)>
if ( <predicate> ) {
<ops; separator="\n">
}
<else>
{
<ops; separator="\n"> <! empty if EPSILON alt !>
}
<endif>
>>
RewriteIteratorDecl(d) ::= "Iterator\<<ASTLabelType()>> <d.name>;"
RewriteIteratorInit(i) ::= "<i.decl.name> = <i.decl.listName>.iterator();"
RewriteIteratorName(elemName,level) ::= "it<level>_<elemName>"
RewriteTreeOptional(o, locals, preamble, ops) ::= <<
// ? code level= <o.codeBlockLevel>, tree level = <o.treeLevel>
{
<locals; separator="\n">
<preamble; separator="\n">
if ( <o.conditionalDecls:{d | <d.name>.hasNext()}; separator=" || "> ) {
<ops; separator="\n">
}
}
>>
RewriteTreeClosure(c, locals, preamble, ops) ::= <<
// * code level= <c.codeBlockLevel>, tree level = <c.treeLevel>
{
<locals; separator="\n">
<preamble; separator="\n">
while ( <c.iteratorDecls:{d | <d.name>.hasNext()}; separator=" || "> ) {
<ops; separator="\n">
}
}
>>
RewriteTreeStructure(t, locals, ops) ::= <<
// TREE code level= <t.codeBlockLevel>, tree level = <t.treeLevel>
{
<locals; separator="\n">
<ops; separator="\n">
_adaptor.addChild(_root<t.enclosingTreeLevel>, _root<t.treeLevel>);
}
>>
RewriteTokenRef(t) ::= "<t.iterName>.next()"
RewriteImagTokenRef(t, argChunks) ::= <<
_adaptor.create(<t.tokenType>, <if(argChunks)><argChunks><else>"<t.tokenType>"<endif>)
>>
RewriteRuleRef(r) ::= "<r.iterName>.next()"
RewriteLabelRef(t) ::= "<t.iterName>.next()"
// -> $e in rule e
RewriteSelfRuleLabelRef(s) ::= "_localctx.tree"
RewriteAction(a, chunks) ::= "<chunks>"
/** how to add child in rewrite section */
AddChild(x, rootName, child) ::= "_adaptor.addChild(<x.rootName>, <child>);"
/** how to make something a new root in rewrite section */
BecomeRoot(x, rootName, newRoot) ::=
"<x.rootName> = _adaptor.becomeRoot(<newRoot>, <x.rootName>);"
/*
BitSetDecl(b) ::= <<
public static final LABitSet <b.name>=new LABitSet(new long[]{<b.hexWords:{it|<it>L};separator=",">}<if(b.fset.EOF)>, true<endif>);
>>
*/
LexerFile(lexerFile, lexer, namedActions) ::= <<
// $ANTLR ANTLRVersion> <lexerFile.fileName> generatedTimestamp>
<namedActions.header>

6
tool/src/org/antlr/v4/Tool.java
View File

@ -34,7 +34,6 @@ import org.antlr.v4.analysis.AnalysisPipeline;
import org.antlr.v4.automata.ATNFactory;
import org.antlr.v4.automata.LexerATNFactory;
import org.antlr.v4.automata.ParserATNFactory;
import org.antlr.v4.automata.TreeParserATNFactory;
import org.antlr.v4.codegen.CodeGenPipeline;
import org.antlr.v4.parse.ANTLRLexer;
import org.antlr.v4.parse.ANTLRParser;
@ -88,6 +87,7 @@ public class Tool {
public boolean profile = false;
public boolean trace = false;
public boolean generate_ATN_dot = false;
public String grammarEncoding = null; // use default locale's encoding
public String msgFormat = "antlr";
public boolean saveLexer = false;
public boolean genListener = true;
@ -105,6 +105,7 @@ public class Tool {
new Option("profile", "-profile", "generate a parser that computes profiling information"),
new Option("trace", "-trace", "generate a recognizer that traces rule entry/exit"),
new Option("generate_ATN_dot", "-atn", "generate rule augmented transition networks"),
new Option("grammarEncoding", "-encoding", OptionArgType.STRING, "specify grammar file encoding; e.g., euc-jp"),
new Option("msgFormat", "-message-format", OptionArgType.STRING, "specify output style for messages"),
new Option("genListener", "-walker", "generate parse tree walker and listener"),
new Option("saveLexer", "-Xsave-lexer", "save temp lexer file created for combined grammars"),
@ -299,7 +300,6 @@ public class Tool {
// BUILD ATN FROM AST
ATNFactory factory;
if ( g.isLexer() ) factory = new LexerATNFactory((LexerGrammar)g);
else if ( g.isTreeGrammar() ) factory = new TreeParserATNFactory(g);
else factory = new ParserATNFactory(g);
g.atn = factory.createATN();
@ -338,7 +338,7 @@ public class Tool {
public GrammarRootAST loadGrammar(String fileName) {
try {
ANTLRFileStream in = new ANTLRFileStream(fileName);
ANTLRFileStream in = new ANTLRFileStream(fileName, grammarEncoding);
GrammarRootAST t = load(in);
return t;
}

106
tool/src/org/antlr/v4/automata/TreeParserATNFactory.java
View File

@ -1,106 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.automata;
import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.atn.*;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.tool.Grammar;
import org.antlr.v4.tool.ast.GrammarAST;
import org.antlr.v4.tool.ast.TreePatternAST;
import java.util.ArrayList;
import java.util.List;
/** Build ATNs for tree grammars */
public class TreeParserATNFactory extends ParserATNFactory {
// track stuff for ^(...) patterns in grammar to fix up nullable after ATN build
List<TreePatternAST> treePatternRootNodes = new ArrayList<TreePatternAST>();
List<ATNState> firstChildStates = new ArrayList<ATNState>();
List<ATNState> downStates = new ArrayList<ATNState>();
List<ATNState> upTargetStates = new ArrayList<ATNState>();
public TreeParserATNFactory(Grammar g) {
super(g);
}
public ATN createATN() {
super.createATN();
for (int i=0; i<firstChildStates.size(); i++) {
ATNState firstChild = firstChildStates.get(i);
LL1Analyzer analyzer = new LL1Analyzer(atn);
IntervalSet look = analyzer.LOOK(firstChild, ParserRuleContext.EMPTY);
if ( look.contains(Token.UP) ) {
// nullable child list if we can see the UP as the next token.
// convert r DN kids UP to r (DN kids UP)?; leave AST alone--
// that drives code gen. This just affects analysis
epsilon(downStates.get(i), upTargetStates.get(i));
}
}
return atn;
}
/** x y z from ^(x y z) becomes o-x->o-DOWN->o-y->o-z->o-UP->o
* ANTLRParser.g has added DOWN_TOKEN, UP_TOKEN into AST.
* Elems are [root, DOWN_TOKEN, x, y, UP_TOKEN]
*/
public Handle tree(GrammarAST node, List<Handle> els) {
TreePatternAST root = (TreePatternAST) node;
Handle h = elemList(els);
treePatternRootNodes.add(root);
// find DOWN node then first child
for (Handle elh : els) {
Transition trans = elh.left.transition(0);
if ( !trans.isEpsilon() && trans.label().contains(Token.DOWN) ) {
ATNState downState = elh.left;
downStates.add(downState);
root.downState = downState;
firstChildStates.add(downState.transition(0).target);
break;
}
}
// find UP node
for (Handle elh : els) {
Transition trans = elh.left.transition(0);
if ( trans instanceof AtomTransition && trans.label().contains(Token.UP) ) {
ATNState upTargetState = elh.right;
root.upState = elh.left;
upTargetStates.add(upTargetState);
break;
}
}
return h;
}
}

9
tool/src/org/antlr/v4/codegen/ActionTranslator.java
View File

@ -52,18 +52,14 @@ public class ActionTranslator implements ActionSplitterListener {
public static final Map<String, Class> thisRulePropToModelMap = new HashMap<String, Class>() {{
put("start", ThisRulePropertyRef_start.class);
put("stop", ThisRulePropertyRef_stop.class);
put("tree", ThisRulePropertyRef_tree.class);
put("text", ThisRulePropertyRef_text.class);
put("st", ThisRulePropertyRef_st.class);
put("ctx", ThisRulePropertyRef_ctx.class);
}};
public static final Map<String, Class> rulePropToModelMap = new HashMap<String, Class>() {{
put("start", RulePropertyRef_start.class);
put("stop", RulePropertyRef_stop.class);
put("tree", RulePropertyRef_tree.class);
put("text", RulePropertyRef_text.class);
put("st", RulePropertyRef_st.class);
put("ctx", RulePropertyRef_ctx.class);
}};
@ -76,7 +72,6 @@ public class ActionTranslator implements ActionSplitterListener {
put("index", TokenPropertyRef_index.class);
put("pos", TokenPropertyRef_pos.class);
put("channel", TokenPropertyRef_channel.class);
put("tree", TokenPropertyRef_tree.class);
put("int", TokenPropertyRef_int.class);
}};
@ -288,9 +283,7 @@ public class ActionTranslator implements ActionSplitterListener {
RulePropertyRef getRulePropertyRef(Token x, Token prop) {
Grammar g = factory.getGrammar();
try {
Class c = g.isTreeGrammar() ?
treeRulePropToModelMap.get(prop.getText()) :
rulePropToModelMap.get(prop.getText());
Class c = rulePropToModelMap.get(prop.getText());
Constructor ctor = c.getConstructor(new Class[] {String.class});
RulePropertyRef ref =
(RulePropertyRef)ctor.newInstance(getRuleLabel(x.getText()));

47
tool/src/org/antlr/v4/codegen/BlankOutputModelFactory.java
View File

@ -30,14 +30,11 @@
package org.antlr.v4.codegen;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.tool.Alternative;
import org.antlr.v4.tool.Rule;
import org.antlr.v4.tool.ast.ActionAST;
import org.antlr.v4.tool.ast.BlockAST;
import org.antlr.v4.tool.ast.GrammarAST;
import org.antlr.v4.tool.ast.PredAST;
import java.util.List;
@ -62,13 +59,15 @@ public abstract class BlankOutputModelFactory implements OutputModelFactory {
public CodeBlockForAlt epsilon() { return null; }
public List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args, GrammarAST astOp) { return null; }
public List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args) { return null; }
public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST label, GrammarAST args, GrammarAST astOp) { return null; }
public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST label, GrammarAST args) { return null; }
public List<SrcOp> stringRef(GrammarAST ID, GrammarAST label, GrammarAST astOp) { return tokenRef(ID, label, null, astOp); }
public List<SrcOp> stringRef(GrammarAST ID, GrammarAST label) { return tokenRef(ID, label, null); }
public List<SrcOp> set(GrammarAST setAST, GrammarAST label, GrammarAST astOp, boolean invert) { return null; }
public List<SrcOp> set(GrammarAST setAST, GrammarAST label, boolean invert) { return null; }
public List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST) { return null; }
// ACTIONS
@ -78,40 +77,6 @@ public abstract class BlankOutputModelFactory implements OutputModelFactory {
public List<SrcOp> sempred(GrammarAST ast) { return null; }
// AST OPS
public List<SrcOp> rootToken(List<SrcOp> ops) { return ops; }
public List<SrcOp> rootRule(List<SrcOp> ops) { return ops; }
public List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST, GrammarAST astOp) { return null; }
// AST REWRITES
public TreeRewrite treeRewrite(GrammarAST ast) { return null; }
public RewriteChoice rewrite_choice(PredAST pred, List<SrcOp> ops) { return null; }
public RewriteTreeOptional rewrite_optional(GrammarAST ast) { return null; }
public RewriteTreeClosure rewrite_closure(GrammarAST ast) { return null; }
public RewriteTreeStructure rewrite_treeStructure(GrammarAST root) { return null; }
public List<SrcOp> rewrite_ruleRef(GrammarAST ID, boolean isRoot) { return null; }
public List<SrcOp> rewrite_tokenRef(GrammarAST ID, boolean isRoot, ActionAST argAST) { return null; }
public List<SrcOp> rewrite_stringRef(GrammarAST ID, boolean isRoot) {
return rewrite_tokenRef(ID, isRoot, null);
}
public List<SrcOp> rewrite_labelRef(GrammarAST ID, boolean isRoot) { return null; }
public List<SrcOp> rewrite_action(ActionAST action, boolean isRoot) { return null; }
public List<SrcOp> rewrite_epsilon(GrammarAST epsilon) { return null; }
// BLOCKS
public Choice getChoiceBlock(BlockAST blkAST, List<CodeBlockForAlt> alts, GrammarAST label) { return null; }

3
tool/src/org/antlr/v4/codegen/CodeGenPipeline.java
View File

@ -44,9 +44,6 @@ public class CodeGenPipeline {
if ( g.isLexer() ) {
gen.writeRecognizer(gen.generateLexer());
}
else if ( g.isTreeGrammar() ) {
gen.writeRecognizer(gen.generateTreeParser());
}
else {
gen.writeRecognizer(gen.generateParser());
if ( g.tool.genListener) {

41
tool/src/org/antlr/v4/codegen/CodeGenerator.java
View File

@ -116,21 +116,6 @@ public class CodeGenerator {
}
}
// public void buildOutputModel() {
// OutputModelFactory factory;
// if ( g.isLexer() ) factory = new LexerFactory(this);
// else factory = new ParserFactory(this);
// // CREATE OUTPUT MODEL FROM GRAMMAR OBJ AND AST WITHIN RULES
// OutputModelController controller = new OutputModelController(factory);
// if ( g.hasASTOption() ) {
// controller.addExtension( new ParserASTExtension(factory) );
// }
// factory.setController(controller);
//
// if ( g.isLexer() ) outputModel = controller.buildLexerOutputModel();
// else outputModel = controller.buildParserOutputModel();
// }
// CREATE TEMPLATES BY WALKING MODEL
public ST generateLexer() {
OutputModelFactory factory = new LexerFactory(this);
@ -160,9 +145,6 @@ public class CodeGenerator {
// CREATE OUTPUT MODEL FROM GRAMMAR OBJ AND AST WITHIN RULES
OutputModelController controller = new OutputModelController(factory);
if ( g.hasASTOption() ) {
controller.addExtension( new ParserASTExtension(factory) );
}
factory.setController(controller);
OutputModelObject outputModel = controller.buildParserOutputModel();
@ -178,29 +160,6 @@ public class CodeGenerator {
return st;
}
public ST generateTreeParser() {
OutputModelFactory factory = new TreeParserFactory(this);
// CREATE OUTPUT MODEL FROM GRAMMAR OBJ AND AST WITHIN RULES
OutputModelController controller = new OutputModelController(factory);
if ( g.hasASTOption() ) {
controller.addExtension( new ParserASTExtension(factory) );
}
factory.setController(controller);
OutputModelObject outputModel = controller.buildTreeParserOutputModel();
OutputModelWalker walker = new OutputModelWalker(tool, templates);
ST st = walker.walk(outputModel);
if ( tool.launch_ST_inspector ) {
st.inspect();
//if ( templates.isDefined("headerFile") ) headerFileST.inspect();
}
return st;
}
public ST generateListener() {
OutputModelFactory factory = new ParserFactory(this);

53
tool/src/org/antlr/v4/codegen/CodeGeneratorExtension.java
View File

@ -31,7 +31,6 @@ package org.antlr.v4.codegen;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.List;
@ -52,10 +51,6 @@ public class CodeGeneratorExtension {
public Lexer lexer(Lexer l) { return l; }
public TreeParserFile treeParserFile(TreeParserFile f) { return f; }
public TreeParserModel treeParser(TreeParserModel p) { return p; }
public RuleFunction rule(RuleFunction rf) { return rf; }
public List<SrcOp> rulePostamble(List<SrcOp> ops) { return ops; }
@ -76,36 +71,12 @@ public class CodeGeneratorExtension {
public List<SrcOp> wildcard(List<SrcOp> ops) { return ops; }
public MatchTree tree(MatchTree matchTree) { return matchTree; }
// ACTIONS
public List<SrcOp> action(List<SrcOp> ops) { return ops; }
public List<SrcOp> sempred(List<SrcOp> ops) { return ops; }
// AST OPS
public List<SrcOp> rootRule(List<SrcOp> ops) { return ops; }
public List<SrcOp> leafRule(List<SrcOp> ops) { return ops; }
public List<SrcOp> rootToken(List<SrcOp> ops) { return ops; }
public List<SrcOp> leafToken(List<SrcOp> ops) { return ops; }
public List<SrcOp> rootString(List<SrcOp> ops) { return ops; }
public List<SrcOp> leafString(List<SrcOp> ops) { return ops; }
public List<SrcOp> rootSet(List<SrcOp> ops) { return ops; }
public List<SrcOp> leafSet(List<SrcOp> ops) { return ops; }
public List<SrcOp> rootWildcard(List<SrcOp> ops) { return ops; }
public List<SrcOp> leafWildcard(List<SrcOp> ops) { return ops; }
// BLOCKS
public Choice getChoiceBlock(Choice c) { return c; }
@ -113,28 +84,4 @@ public class CodeGeneratorExtension {
public Choice getEBNFBlock(Choice c) { return c; }
public boolean needsImplicitLabel(GrammarAST ID, LabeledOp op) { return false; }
// AST REWRITEs
public TreeRewrite treeRewrite(TreeRewrite r) { return r; }
public RewriteChoice rewrite_choice(RewriteChoice r) { return r; }
public RewriteTreeOptional rewrite_optional(RewriteTreeOptional o) { return o; }
public RewriteTreeClosure rewrite_closure(RewriteTreeClosure c) { return c; }
public RewriteTreeStructure rewrite_treeStructure(RewriteTreeStructure t) { return t; }
public List<SrcOp> rewrite_ruleRef(List<SrcOp> ops) { return ops; }
public List<SrcOp> rewrite_tokenRef(List<SrcOp> ops) { return ops; }
public List<SrcOp> rewrite_stringRef(List<SrcOp> ops) { return ops; }
public List<SrcOp> rewrite_labelRef(List<SrcOp> ops) { return ops; }
public List<SrcOp> rewrite_action(List<SrcOp> ops) { return ops; }
public List<SrcOp> rewrite_epsilon(List<SrcOp> ops) { return ops; }
}

24
tool/src/org/antlr/v4/codegen/DefaultOutputModelFactory.java
View File

@ -29,14 +29,15 @@
package org.antlr.v4.codegen;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.misc.Nullable;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.OutputModelObject;
import org.antlr.v4.codegen.model.RuleFunction;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.codegen.model.decl.CodeBlock;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.misc.Nullable;
import org.antlr.v4.tool.Alternative;
import org.antlr.v4.tool.Grammar;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.ArrayList;
import java.util.List;
@ -94,21 +95,6 @@ public abstract class DefaultOutputModelFactory extends BlankOutputModelFactory
@Override
public int getTreeLevel() { return controller.treeLevel; }
@Override
public TreeParserFile treeParserFile(String fileName) {
return null;
}
@Override
public TreeParserModel treeParser(TreeParserFile file) {
return null;
}
@Override
public MatchTree tree(GrammarAST treeBeginAST, List<? extends SrcOp> omos) {
throw new UnsupportedOperationException("^(...) in non-tree grammar");
}
// MISC
@NotNull

169
tool/src/org/antlr/v4/codegen/OutputModelController.java
View File

@ -31,7 +31,6 @@ package org.antlr.v4.codegen;
import org.antlr.runtime.tree.CommonTreeNodeStream;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.codegen.model.decl.CodeBlock;
import org.antlr.v4.parse.ANTLRParser;
import org.antlr.v4.parse.GrammarASTAdaptor;
@ -111,21 +110,6 @@ public class OutputModelController {
return file;
}
public OutputModelObject buildTreeParserOutputModel() {
Grammar g = delegate.getGrammar();
CodeGenerator gen = delegate.getGenerator();
TreeParserFile file = treeParserFile(gen.getRecognizerFileName());
setRoot(file);
Parser parser = treeParser(file);
file.parser = parser;
for (Rule r : g.rules.values()) {
buildRuleFunction(parser, r);
}
return file;
}
public OutputModelObject buildListenerOutputModel() {
CodeGenerator gen = delegate.getGenerator();
return new ListenerFile(delegate, gen.getListenerFileName());
@ -156,18 +140,6 @@ public class OutputModelController {
return new Lexer(delegate, file);
}
public TreeParserFile treeParserFile(String fileName) {
TreeParserFile f = delegate.treeParserFile(fileName);
for (CodeGeneratorExtension ext : extensions) f = ext.treeParserFile(f);
return f;
}
public TreeParserModel treeParser(TreeParserFile file) {
TreeParserModel p = delegate.treeParser(file);
for (CodeGeneratorExtension ext : extensions) p = ext.treeParser(p);
return p;
}
/** Create RuleFunction per rule and update sempreds,actions of parser
* output object with stuff found in r.
*/
@ -183,7 +155,8 @@ public class OutputModelController {
CommonTreeNodeStream nodes = new CommonTreeNodeStream(adaptor,blk);
walker = new SourceGenTriggers(nodes, this);
try {
function.code = DefaultOutputModelFactory.list(walker.block(null, null, null)); // walk AST of rule alts/elements
// walk AST of rule alts/elements
function.code = DefaultOutputModelFactory.list(walker.block(null, null));
}
catch (Exception e){
e.printStackTrace(System.err);
@ -284,64 +257,36 @@ public class OutputModelController {
return blk;
}
public List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args,
GrammarAST astOp)
{
List<SrcOp> ops = delegate.ruleRef(ID, label, args, astOp);
public List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args) {
List<SrcOp> ops = delegate.ruleRef(ID, label, args);
for (CodeGeneratorExtension ext : extensions) {
ops = ext.ruleRef(ops);
if ( astOp!=null && astOp.getType()==ANTLRParser.ROOT ) {
ops = ext.rootRule(ops);
}
else if ( astOp==null ) {
ops = ext.leafRule(ops);
}
}
return ops;
}
public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST label, GrammarAST args,
GrammarAST astOp)
public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST label, GrammarAST args)
{
List<SrcOp> ops = delegate.tokenRef(ID, label, args, astOp);
List<SrcOp> ops = delegate.tokenRef(ID, label, args);
for (CodeGeneratorExtension ext : extensions) {
ops = ext.tokenRef(ops);
if ( astOp!=null && astOp.getType()==ANTLRParser.ROOT ) {
ops = ext.rootToken(ops);
}
else if ( astOp==null ) {
ops = ext.leafToken(ops);
}
}
return ops;
}
public List<SrcOp> stringRef(GrammarAST ID, GrammarAST label, GrammarAST astOp) {
List<SrcOp> ops = delegate.stringRef(ID, label, astOp);
public List<SrcOp> stringRef(GrammarAST ID, GrammarAST label) {
List<SrcOp> ops = delegate.stringRef(ID, label);
for (CodeGeneratorExtension ext : extensions) {
ops = ext.stringRef(ops);
if ( astOp!=null && astOp.getType()==ANTLRParser.ROOT ) {
ops = ext.rootString(ops);
}
else if ( astOp==null ) {
ops = ext.leafString(ops);
}
}
return ops;
}
/** (A|B|C) possibly with ebnfRoot and label */
public List<SrcOp> set(GrammarAST setAST, GrammarAST labelAST,
GrammarAST astOp, boolean invert) {
List<SrcOp> ops = delegate.set(setAST, labelAST, astOp, invert);
public List<SrcOp> set(GrammarAST setAST, GrammarAST labelAST, boolean invert) {
List<SrcOp> ops = delegate.set(setAST, labelAST, invert);
for (CodeGeneratorExtension ext : extensions) {
ops = ext.set(ops);
if ( astOp!=null && astOp.getType()==ANTLRParser.ROOT ) {
ops = ext.rootSet(ops);
}
else if ( astOp==null ) {
ops = ext.leafSet(ops);
}
}
return ops;
}
@ -352,6 +297,14 @@ public class OutputModelController {
return blk;
}
public List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST) {
List<SrcOp> ops = delegate.wildcard(ast, labelAST);
for (CodeGeneratorExtension ext : extensions) {
ops = ext.set(ops);
}
return ops;
}
public List<SrcOp> action(GrammarAST ast) {
List<SrcOp> ops = delegate.action(ast);
for (CodeGeneratorExtension ext : extensions) ops = ext.action(ops);
@ -364,26 +317,6 @@ public class OutputModelController {
return ops;
}
public List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST, GrammarAST astOp) {
List<SrcOp> ops = delegate.wildcard(ast, labelAST, astOp);
for (CodeGeneratorExtension ext : extensions) {
ops = ext.set(ops);
if ( astOp!=null && astOp.getType()==ANTLRParser.ROOT ) {
ops = ext.rootWildcard(ops);
}
else if ( astOp==null ) {
ops = ext.leafWildcard(ops);
}
}
return ops;
}
public MatchTree tree(GrammarAST treeBeginAST, List<? extends SrcOp> omos) {
MatchTree matchTree = delegate.tree(treeBeginAST, omos);
for (CodeGeneratorExtension ext : extensions) matchTree = ext.tree(matchTree);
return matchTree;
}
public Choice getChoiceBlock(BlockAST blkAST, List<CodeBlockForAlt> alts, GrammarAST label) {
Choice c = delegate.getChoiceBlock(blkAST, alts, label);
for (CodeGeneratorExtension ext : extensions) c = ext.getChoiceBlock(c);
@ -402,72 +335,6 @@ public class OutputModelController {
return needs;
}
// REWRITES
public TreeRewrite treeRewrite(GrammarAST ast) {
TreeRewrite r = delegate.treeRewrite(ast);
for (CodeGeneratorExtension ext : extensions) r = ext.treeRewrite(r);
return r;
}
public RewriteChoice rewrite_choice(PredAST pred, List<SrcOp> ops) {
RewriteChoice r = delegate.rewrite_choice(pred, ops);
for (CodeGeneratorExtension ext : extensions) r = ext.rewrite_choice(r);
return r;
}
public RewriteTreeOptional rewrite_optional(GrammarAST ast) {
RewriteTreeOptional o = delegate.rewrite_optional(ast);
for (CodeGeneratorExtension ext : extensions) o = ext.rewrite_optional(o);
return o;
}
public RewriteTreeClosure rewrite_closure(GrammarAST ast) {
RewriteTreeClosure c = delegate.rewrite_closure(ast);
for (CodeGeneratorExtension ext : extensions) c = ext.rewrite_closure(c);
return c;
}
public RewriteTreeStructure rewrite_treeStructure(GrammarAST root) {
RewriteTreeStructure t = delegate.rewrite_treeStructure(root);
for (CodeGeneratorExtension ext : extensions) t = ext.rewrite_treeStructure(t);
return t;
}
public List<SrcOp> rewrite_ruleRef(GrammarAST ID, boolean isRoot) {
List<SrcOp> ops = delegate.rewrite_ruleRef(ID, isRoot);
for (CodeGeneratorExtension ext : extensions) ops = ext.rewrite_ruleRef(ops);
return ops;
}
public List<SrcOp> rewrite_tokenRef(GrammarAST ID, boolean isRoot, ActionAST argAST) {
List<SrcOp> ops = delegate.rewrite_tokenRef(ID, isRoot, argAST);
for (CodeGeneratorExtension ext : extensions) ops = ext.rewrite_tokenRef(ops);
return ops;
}
public List<SrcOp> rewrite_stringRef(GrammarAST ID, boolean isRoot) {
return rewrite_tokenRef(ID, isRoot, null);
}
public List<SrcOp> rewrite_labelRef(GrammarAST ID, boolean isRoot) {
List<SrcOp> ops = delegate.rewrite_labelRef(ID, isRoot);
for (CodeGeneratorExtension ext : extensions) ops = ext.rewrite_labelRef(ops);
return ops;
}
public List<SrcOp> rewrite_action(ActionAST action, boolean isRoot) {
List<SrcOp> ops = delegate.rewrite_action(action, isRoot);
for (CodeGeneratorExtension ext : extensions) ops = ext.rewrite_action(ops);
return ops;
}
public List<SrcOp> rewrite_epsilon(GrammarAST epsilon) {
List<SrcOp> ops = delegate.rewrite_epsilon(epsilon);
for (CodeGeneratorExtension ext : extensions) ops = ext.rewrite_epsilon(ops);
return ops;
}
public OutputModelObject getRoot() { return root; }
public void setRoot(OutputModelObject root) { this.root = root; }

51
tool/src/org/antlr/v4/codegen/OutputModelFactory.java
View File

@ -30,16 +30,13 @@
package org.antlr.v4.codegen;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.codegen.model.decl.CodeBlock;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.tool.Alternative;
import org.antlr.v4.tool.Grammar;
import org.antlr.v4.tool.Rule;
import org.antlr.v4.tool.ast.ActionAST;
import org.antlr.v4.tool.ast.BlockAST;
import org.antlr.v4.tool.ast.GrammarAST;
import org.antlr.v4.tool.ast.PredAST;
import java.util.List;
@ -58,10 +55,6 @@ public interface OutputModelFactory {
Lexer lexer(LexerFile file);
TreeParserFile treeParserFile(String fileName);
TreeParserModel treeParser(TreeParserFile file);
RuleFunction rule(Rule r);
List<SrcOp> rulePostamble(RuleFunction function, Rule r);
@ -74,13 +67,15 @@ public interface OutputModelFactory {
CodeBlockForAlt epsilon();
List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args, GrammarAST astOp);
List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args);
List<SrcOp> tokenRef(GrammarAST ID, GrammarAST label, GrammarAST args, GrammarAST astOp);
List<SrcOp> tokenRef(GrammarAST ID, GrammarAST label, GrammarAST args);
List<SrcOp> stringRef(GrammarAST ID, GrammarAST label, GrammarAST astOp);
List<SrcOp> stringRef(GrammarAST ID, GrammarAST label);
List<SrcOp> set(GrammarAST setAST, GrammarAST label, GrammarAST astOp, boolean invert);
List<SrcOp> set(GrammarAST setAST, GrammarAST label, boolean invert);
List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST);
List<SrcOp> action(GrammarAST ast);
@ -88,14 +83,6 @@ public interface OutputModelFactory {
List<SrcOp> sempred(GrammarAST ast);
List<SrcOp> rootToken(List<SrcOp> ops);
List<SrcOp> rootRule(List<SrcOp> ops);
List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST, GrammarAST astOp);
MatchTree tree(GrammarAST treeBeginAST, List<? extends SrcOp> omos);
Choice getChoiceBlock(BlockAST blkAST, List<CodeBlockForAlt> alts, GrammarAST label);
Choice getEBNFBlock(GrammarAST ebnfRoot, List<CodeBlockForAlt> alts);
@ -112,32 +99,6 @@ public interface OutputModelFactory {
boolean needsImplicitLabel(GrammarAST ID, LabeledOp op);
// AST REWRITE TRIGGERS
// Though dealing with ASTs, we must deal with here since these are
// triggered from elements in ANTLR's internal GrammarAST
TreeRewrite treeRewrite(GrammarAST ast);
RewriteChoice rewrite_choice(PredAST pred, List<SrcOp> ops);
RewriteTreeOptional rewrite_optional(GrammarAST ast);
RewriteTreeClosure rewrite_closure(GrammarAST ast);
RewriteTreeStructure rewrite_treeStructure(GrammarAST root);
List<SrcOp> rewrite_ruleRef(GrammarAST ID, boolean isRoot);
List<SrcOp> rewrite_tokenRef(GrammarAST ID, boolean isRoot, ActionAST argAST);
List<SrcOp> rewrite_stringRef(GrammarAST ID, boolean isRoot);
List<SrcOp> rewrite_labelRef(GrammarAST ID, boolean isRoot);
List<SrcOp> rewrite_action(ActionAST action, boolean isRoot);
List<SrcOp> rewrite_epsilon(GrammarAST epsilon);
// CONTEXT INFO
OutputModelObject getRoot();

278
tool/src/org/antlr/v4/codegen/ParserASTExtension.java
View File

@ -1,278 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.actions.ParserASTExtensionMembers;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.codegen.model.decl.*;
import org.antlr.v4.misc.Utils;
import org.antlr.v4.parse.ANTLRParser;
import org.antlr.v4.tool.Alternative;
import org.antlr.v4.tool.Attribute;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.List;
public class ParserASTExtension extends CodeGeneratorExtension {
public ParserASTExtension(OutputModelFactory factory) {
super(factory);
}
@Override
public ParserFile parserFile(ParserFile file) {
Action members = file.namedActions.get("members");
if (members == null) {
members = new Action(factory, null);
file.namedActions.put("members", members);
}
members.chunks.add(new ParserASTExtensionMembers());
return super.parserFile(file);
}
@Override
public RuleFunction rule(RuleFunction rf) {
rf.ruleCtx.addDecl(new ParserASTTreeFieldDecl(factory));
rf.ruleCtx.addExtensionMember(new ParserASTContextMembers());
rf.ruleCtx.implementInterface(new ParserASTContextInterface());
return super.rule(rf);
}
@Override
public Choice getChoiceBlock(Choice choice) {
Alternative alt = factory.getCurrentOuterMostAlt();
if ( alt.hasRewrite() && choice.label!=null ) {
trackExplicitLabel(choice.preamble, choice.label, choice);
}
return choice;
}
@Override
public CodeBlockForAlt alternative(CodeBlockForAlt blk, boolean outerMost) {
Alternative alt = factory.getCurrentOuterMostAlt();
if ( outerMost && !alt.hasRewrite() ) {
blk.addLocalDecl(new RootDecl(factory, 0));
}
return blk;
}
@Override
public CodeBlockForAlt finishAlternative(CodeBlockForAlt blk, boolean outerMost) {
Alternative alt = factory.getCurrentOuterMostAlt();
if ( !alt.hasRewrite() ) blk.addOp(new AssignTreeResult(factory));
return blk;
}
@Override
public List<SrcOp> rulePostamble(List<SrcOp> ops) {
RuleASTCleanup cleanup = new RuleASTCleanup(factory);
return DefaultOutputModelFactory.list(ops, cleanup);
}
@Override
public List<SrcOp> rootRule(List<SrcOp> ops) {
Alternative alt = factory.getCurrentOuterMostAlt();
if ( alt.hasRewrite() ) {
return ops;
}
else {
InvokeRule invokeOp = (InvokeRule)Utils.find(ops, InvokeRule.class);
SrcOp treeOp = new RuleAST(factory, invokeOp.ast, invokeOp.getLabels().get(0));
String rootName = factory.getGenerator().target.getRootName(0);
SrcOp add = new BecomeRoot(factory, rootName, treeOp);
return DefaultOutputModelFactory.list(ops, add);
}
}
@Override
public List<SrcOp> leafRule(List<SrcOp> ops) {
InvokeRule invokeOp = (InvokeRule)Utils.find(ops, InvokeRule.class);
Alternative alt = factory.getCurrentOuterMostAlt();
if ( alt.hasRewrite() ) {
return leafRuleInRewriteAlt(invokeOp, ops);
}
else {
RuleContextDecl label = (RuleContextDecl)invokeOp.getLabels().get(0);
SrcOp treeOp = new RuleAST(factory, invokeOp.ast, label);
String rootName = factory.getGenerator().target.getRootName(0);
SrcOp add = new AddChild(factory, rootName, treeOp);
ops.add(add);
return ops;
}
}
@Override
public List<SrcOp> rootToken(List<SrcOp> ops) {
Alternative alt = factory.getCurrentOuterMostAlt();
if ( alt.hasRewrite() ) {
return ops;
}
else {
MatchToken matchOp = (MatchToken)Utils.find(ops, MatchToken.class);
SrcOp treeOp = new TokenAST(factory, matchOp.ast, matchOp.getLabels().get(0));
String rootName = factory.getGenerator().target.getRootName(0);
SrcOp add = new BecomeRoot(factory, rootName, treeOp);
return DefaultOutputModelFactory.list(ops, add);
}
}
@Override
public List<SrcOp> leafToken(List<SrcOp> ops) {
MatchToken matchOp = (MatchToken)Utils.find(ops, MatchToken.class);
Alternative alt = factory.getCurrentOuterMostAlt();
if ( alt.hasRewrite() ) {
return leafTokenInRewriteAlt(matchOp, ops);
}
else {
TokenDecl label = (TokenDecl)matchOp.getLabels().get(0);
SrcOp treeOp = new TokenAST(factory, matchOp.ast, label);
String rootName = factory.getGenerator().target.getRootName(0);
SrcOp add = new AddChild(factory, rootName, treeOp);
ops.add(add);
return ops;
}
}
@Override
public List<SrcOp> rootString(List<SrcOp> ops) { return rootToken(ops); }
@Override
public List<SrcOp> leafString(List<SrcOp> ops) { return leafToken(ops); }
public List<SrcOp> leafRuleInRewriteAlt(InvokeRule invokeOp, List<SrcOp> ops) {
RuleContextDecl label = (RuleContextDecl)invokeOp.getLabels().get(0);
CodeBlock blk = factory.getCurrentOuterMostAlternativeBlock();
String elemListName = factory.getGenerator().target.getElementListName(invokeOp.ast.getText());
blk.addLocalDecl(new ElementListDecl(factory, elemListName));
// add code to track rule results in _track_r
String trackName = factory.getGenerator().target.getElementListName(invokeOp.ast.getText());
TrackRuleElement t = new TrackRuleElement(factory, invokeOp.ast, trackName, label);
ops.add(t);
// track any explicit label like _track_label but not implicit label
if ( !label.isImplicit ) trackExplicitLabel(ops, label, invokeOp);
return ops;
}
public List<SrcOp> leafTokenInRewriteAlt(SrcOp matchOp, List<SrcOp> ops) {
CodeBlock blk = factory.getCurrentOuterMostAlternativeBlock();
TokenDecl label = (TokenDecl)((LabeledOp)matchOp).getLabels().get(0);
// First declare tracking lists for elements, labels
// track the named element like _track_A
String elemName = matchOp.ast.getText();
if ( matchOp.ast.getType()==ANTLRParser.SET ) {
elemName = String.valueOf(matchOp.ast.token.getTokenIndex());
}
String elemListName = factory.getGenerator().target.getElementListName(elemName);
blk.addLocalDecl(new ElementListDecl(factory, elemListName));
// Now, generate track instructions for element and any labels
// do element
String trackName = factory.getGenerator().target.getElementListName(elemName);
TrackTokenElement t = new TrackTokenElement(factory, matchOp.ast, trackName,
label);
ops.add(t);
if ( !label.isImplicit ) trackExplicitLabel(ops, label, matchOp);
return ops;
}
@Override
public List<SrcOp> rootSet(List<SrcOp> ops) { return rootToken(ops); }
@Override
public List<SrcOp> leafSet(List<SrcOp> ops) { return leafToken(ops); }
@Override
public List<SrcOp> wildcard(List<SrcOp> ops) {
Wildcard wild = (Wildcard)Utils.find(ops, Wildcard.class);
Alternative alt = factory.getCurrentOuterMostAlt();
if ( alt.hasRewrite() ) {
TokenDecl label = (TokenDecl)((LabeledOp)wild).getLabels().get(0);
if ( !label.isImplicit ) trackExplicitLabel(ops, label, wild);
return ops;
}
else {
TokenDecl label = (TokenDecl)wild.getLabels().get(0);
SrcOp treeOp = new TokenAST(factory, wild.ast, label);
String rootName = factory.getGenerator().target.getRootName(0);
SrcOp add = new AddChild(factory, rootName, treeOp);
ops.add(add);
return ops;
}
}
@Override
public List<SrcOp> rootWildcard(List<SrcOp> ops) { return rootToken(ops); }
@Override
public List<SrcOp> leafWildcard(List<SrcOp> ops) { return leafToken(ops); }
public void trackExplicitLabel(List<SrcOp> ops, Decl label, SrcOp opWithLabel) {
CodeBlock blk = factory.getCurrentOuterMostAlternativeBlock();
// declare _track_label
String labelListName =
factory.getGenerator().target.getElementListName(label.name);
blk.addLocalDecl(new ElementListDecl(factory, labelListName));
// add elements to _track_label
SrcOp trk;
if ( opWithLabel instanceof InvokeRule ) {
trk = new TrackRuleElement(factory, opWithLabel.ast, labelListName, label);
}
else if ( opWithLabel instanceof Choice ||
opWithLabel instanceof MatchToken ||
opWithLabel instanceof Wildcard )
{
trk = new TrackTokenElement(factory, opWithLabel.ast, labelListName, label);
}
else {
trk = null;
}
clearTrackingIfSingularLabel(ops, opWithLabel, labelListName);
ops.add(trk);
}
public void clearTrackingIfSingularLabel(List<SrcOp> ops, SrcOp opWithLabel, String trackName) {
if ( opWithLabel.ast.parent.getType() == ANTLRParser.ASSIGN ) {
// if x=A must keep it a single-element list; clear before add
ClearElementList c = new ClearElementList(factory, opWithLabel.ast, trackName);
ops.add(c);
}
}
@Override
public boolean needsImplicitLabel(GrammarAST ID, LabeledOp op) {
return op.getLabels().size()==0 && factory.getGrammar().hasASTOption();
}
// REWRITES
}

150
tool/src/org/antlr/v4/codegen/ParserFactory.java
View File

@ -1,6 +1,6 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
Copyright (c) 2012 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -31,17 +31,20 @@ package org.antlr.v4.codegen;
import org.antlr.v4.analysis.AnalysisPipeline;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.codegen.model.decl.*;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.codegen.model.decl.RuleContextDecl;
import org.antlr.v4.codegen.model.decl.TokenDecl;
import org.antlr.v4.codegen.model.decl.TokenListDecl;
import org.antlr.v4.parse.ANTLRParser;
import org.antlr.v4.runtime.atn.DecisionState;
import org.antlr.v4.runtime.atn.PlusBlockStartState;
import org.antlr.v4.runtime.atn.StarLoopEntryState;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.semantics.UseDefAnalyzer;
import org.antlr.v4.tool.Alternative;
import org.antlr.v4.tool.Rule;
import org.antlr.v4.tool.ast.*;
import org.antlr.v4.tool.ast.BlockAST;
import org.antlr.v4.tool.ast.GrammarAST;
import org.antlr.v4.tool.ast.TerminalAST;
import java.util.List;
@ -80,20 +83,15 @@ public class ParserFactory extends DefaultOutputModelFactory {
public List<SrcOp> sempred(GrammarAST ast) { return list(new SemPred(this, ast)); }
public List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args,
GrammarAST astOp)
{
public List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args) {
InvokeRule invokeOp = new InvokeRule(this, ID, label);
// If no manual label and action refs as token/rule not label or
// we're adding to trees, we need to define implicit label
// If no manual label and action refs as token/rule not label, we need to define implicit label
if ( controller.needsImplicitLabel(ID, invokeOp) ) defineImplicitLabel(ID, invokeOp);
AddToLabelList listLabelOp = getListLabelIfPresent(invokeOp, label);
return list(invokeOp, listLabelOp);
}
public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST labelAST, GrammarAST args,
GrammarAST astOp)
{
public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST labelAST, GrammarAST args) {
LabeledOp matchOp = new MatchToken(this, (TerminalAST) ID);
if ( labelAST!=null ) {
String label = labelAST.getText();
@ -119,9 +117,7 @@ public class ParserFactory extends DefaultOutputModelFactory {
}
@Override
public List<SrcOp> set(GrammarAST setAST, GrammarAST labelAST,
GrammarAST astOp, boolean invert)
{
public List<SrcOp> set(GrammarAST setAST, GrammarAST labelAST, boolean invert) {
LabeledOp matchOp;
if ( invert ) matchOp = new MatchNotSet(this, setAST);
else matchOp = new MatchSet(this, setAST);
@ -141,7 +137,7 @@ public class ParserFactory extends DefaultOutputModelFactory {
}
@Override
public List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST, GrammarAST astOp) {
public List<SrcOp> wildcard(GrammarAST ast, GrammarAST labelAST) {
Wildcard wild = new Wildcard(this, ast);
// TODO: dup with tokenRef
if ( labelAST!=null ) {
@ -263,128 +259,8 @@ public class ParserFactory extends DefaultOutputModelFactory {
return op.getLabels().size()==0 && (actionRefsAsToken || actionRefsAsRule);
}
// AST REWRITE
@Override
public TreeRewrite treeRewrite(GrammarAST ast) {
TreeRewrite tr = new TreeRewrite(this, getTreeLevel(), getCodeBlockLevel());
tr.addLocalDecl(new RootDecl(this, 0));
List<GrammarAST> refs =
UseDefAnalyzer.getElementReferencesShallowInOuterAlt(ast);
refs = UseDefAnalyzer.filterForRuleAndTokenRefs(getCurrentOuterMostAlt(), refs);
if ( refs!=null ) {
for (GrammarAST ref : refs) {
RewriteIteratorDecl d = new RewriteIteratorDecl(this, ref, getCodeBlockLevel());
tr.addLocalDecl(d);
RewriteIteratorInit init = new RewriteIteratorInit(this, d);
tr.addPreambleOp(init);
}
}
return tr;
}
@Override
public RewriteChoice rewrite_choice(PredAST pred, List<SrcOp> ops) {
RewriteAction predAction = null;
if ( pred!=null ) predAction = new RewriteAction(this, pred);
RewriteChoice c = new RewriteChoice(this, predAction, ops);
return c;
}
@Override
public RewriteTreeOptional rewrite_optional(GrammarAST ast) {
RewriteTreeOptional o =
new RewriteTreeOptional(this, ast, getTreeLevel(), getCodeBlockLevel());
List<GrammarAST> refs = UseDefAnalyzer.getElementReferencesInEBNF(ast, true);
refs = UseDefAnalyzer.filterForRuleAndTokenRefs(getCurrentOuterMostAlt(), refs);
if ( refs!=null ) {
for (GrammarAST ref : refs) {
RewriteIteratorDecl d = new RewriteIteratorDecl(this, ref, getCodeBlockLevel());
o.addLocalDecl(d);
o.conditionalDecls.add(d);
RewriteIteratorInit init = new RewriteIteratorInit(this, d);
o.addPreambleOp(init);
}
}
return o;
}
@Override
public RewriteTreeClosure rewrite_closure(GrammarAST ast) {
RewriteTreeClosure c =
new RewriteTreeClosure(this, ast, getTreeLevel(), getCodeBlockLevel());
List<GrammarAST> refs = UseDefAnalyzer.getElementReferencesInEBNF(ast, false);
refs = UseDefAnalyzer.filterForRuleAndTokenRefs(getCurrentOuterMostAlt(), refs);
if ( refs!=null ) {
for (GrammarAST ref : refs) {
RewriteIteratorDecl d = new RewriteIteratorDecl(this, ref, getCodeBlockLevel());
c.addLocalDecl(d);
c.iteratorDecls.add(d);
RewriteIteratorInit init = new RewriteIteratorInit(this, d);
c.addPreambleOp(init);
}
}
return c;
}
@Override
public RewriteTreeStructure rewrite_treeStructure(GrammarAST root) {
RewriteTreeStructure t = new RewriteTreeStructure(this, root, getTreeLevel(), getCodeBlockLevel());
t.addLocalDecl( new RootDecl(this, getTreeLevel()) );
return t;
}
public List<SrcOp> rewrite_ruleRef(GrammarAST ID, boolean isRoot) {
String iterName = gen.target.getRewriteIteratorName(ID, getCodeBlockLevel());
RewriteRuleRef ruleRef = new RewriteRuleRef(this, ID, iterName);
return list(makeChildOrRoot(ruleRef, isRoot));
}
public List<SrcOp> rewrite_tokenRef(GrammarAST ID, boolean isRoot, ActionAST argAST) {
Alternative alt = getCurrentOuterMostAlt();
String iterName = gen.target.getRewriteIteratorName(ID, getCodeBlockLevel());
// not ref'd on left hand side or it is but we have an argument like ID["x"]
// implies create new node
SrcOp tokenRef;
if ( alt.tokenRefs.get(ID.getText())==null || argAST!=null ) {
tokenRef = new RewriteImagTokenRef(this, ID, ID.getText(), argAST);
}
else { // must be token ref on left of ->
tokenRef = new RewriteTokenRef(this, ID, iterName);
}
return list(makeChildOrRoot(tokenRef, isRoot));
}
@Override
public List<SrcOp> rewrite_labelRef(GrammarAST ID, boolean isRoot) {
String iterName = gen.target.getRewriteIteratorName(ID, getCodeBlockLevel());
SrcOp labelRef;
if ( ID.getText().equals(getCurrentRuleFunction().rule.name) ) { // $e in rule e
labelRef = new RewriteSelfRuleLabelRef(this, ID);
}
else { // normal element label
labelRef = new RewriteLabelRef(this, ID, iterName);
}
return list(makeChildOrRoot(labelRef, isRoot));
}
@Override
public List<SrcOp> rewrite_action(ActionAST actionAST, boolean isRoot) {
RewriteAction action = new RewriteAction(this, actionAST);
return list(makeChildOrRoot(action, isRoot));
}
// support
public SrcOp makeChildOrRoot(SrcOp elemToAdd, boolean isRoot) {
String rootName = gen.target.getRootName(getTreeLevel());
SrcOp op;
if ( isRoot ) op = new BecomeRoot(this, rootName, elemToAdd);
else op = new AddChild(this, rootName, elemToAdd);
return op;
}
public void defineImplicitLabel(GrammarAST ast, LabeledOp op) {
Decl d;
Rule r = g.getRule(ast.getText());

217
tool/src/org/antlr/v4/codegen/SourceGenTriggers.g
View File

@ -38,7 +38,6 @@ package org.antlr.v4.codegen;
import org.antlr.v4.misc.Utils;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.decl.*;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.tool.*;
import org.antlr.v4.tool.ast.*;
import java.util.Collections;
@ -54,9 +53,9 @@ import java.util.HashMap;
}
}
dummy : block[null, null, null] ;
dummy : block[null, null] ;
block[GrammarAST label, GrammarAST ebnfRoot, GrammarAST astOp] returns [List<? extends SrcOp> omos]
block[GrammarAST label, GrammarAST ebnfRoot] returns [List<? extends SrcOp> omos]
: ^( blk=BLOCK (^(OPTIONS .+))?
{List<CodeBlockForAlt> alts = new ArrayList<CodeBlockForAlt>();}
( alternative {alts.add($alternative.altCodeBlock);} )+
@ -79,14 +78,7 @@ alternative returns [CodeBlockForAlt altCodeBlock, List<SrcOp> ops]
@after {
controller.finishAlternative($altCodeBlock, $ops, outerMost);
}
: ^(ALT_REWRITE
a=alt[outerMost]
( rewrite {$a.ops.add($rewrite.code);} // insert at end of alt's code
|
)
{$altCodeBlock=$a.altCodeBlock; $ops=$a.ops;}
)
| a=alt[outerMost] {$altCodeBlock=$a.altCodeBlock; $ops=$a.ops;}
: a=alt[outerMost] {$altCodeBlock=$a.altCodeBlock; $ops=$a.ops;}
;
alt[boolean outerMost] returns [CodeBlockForAlt altCodeBlock, List<SrcOp> ops]
@ -105,40 +97,28 @@ alt[boolean outerMost] returns [CodeBlockForAlt altCodeBlock, List<SrcOp> ops]
element returns [List<? extends SrcOp> omos]
: labeledElement {$omos = $labeledElement.omos;}
| atom[null,null,false] {$omos = $atom.omos;}
| atom[null,false] {$omos = $atom.omos;}
| subrule {$omos = $subrule.omos;}
| ACTION {$omos = controller.action($ACTION);}
| SEMPRED {$omos = controller.sempred($SEMPRED);}
| ^(ACTION elementOptions) {$omos = controller.action($ACTION);}
| ^(SEMPRED elementOptions) {$omos = controller.sempred($SEMPRED);}
| treeSpec {$omos = DefaultOutputModelFactory.list($treeSpec.treeMatch);}
;
labeledElement returns [List<? extends SrcOp> omos]
: ^(ASSIGN ID atom[$ID,null,false] ) {$omos = $atom.omos;}
| ^(PLUS_ASSIGN ID atom[$ID,null,false]) {$omos = $atom.omos;}
| ^(ASSIGN ID block[$ID,null,null] ) {$omos = $block.omos;}
| ^(PLUS_ASSIGN ID block[$ID,null,null]) {$omos = $block.omos;}
;
treeSpec returns [MatchTree treeMatch]
@init {
List<SrcOp> elems = new ArrayList<SrcOp>();
}
: ^(TREE_BEGIN
(e=element {if ($e.omos!=null) elems.addAll($e.omos);})+
)
{$treeMatch = controller.tree($TREE_BEGIN, elems);}
: ^(ASSIGN ID atom[$ID,false] ) {$omos = $atom.omos;}
| ^(PLUS_ASSIGN ID atom[$ID,false]) {$omos = $atom.omos;}
| ^(ASSIGN ID block[$ID,null] ) {$omos = $block.omos;}
| ^(PLUS_ASSIGN ID block[$ID,null]) {$omos = $block.omos;}
;
subrule returns [List<? extends SrcOp> omos]
: ^(astBlockSuffix block[null,null,$astBlockSuffix.start]) {$omos = $block.omos;}
| ^(OPTIONAL b=block[null,$OPTIONAL,null])
: ^(OPTIONAL b=block[null,$OPTIONAL])
{
$omos = $block.omos;
}
| ( ^(op=CLOSURE b=block[null,null,null])
| ^(op=POSITIVE_CLOSURE b=block[null,null,null])
| ( ^(op=CLOSURE b=block[null,null])
| ^(op=POSITIVE_CLOSURE b=block[null,null])
)
{
List<CodeBlockForAlt> alts = new ArrayList<CodeBlockForAlt>();
@ -149,17 +129,11 @@ subrule returns [List<? extends SrcOp> omos]
SrcOp loop = controller.getEBNFBlock($op, alts); // "star it"
$omos = DefaultOutputModelFactory.list(loop);
}
| block[null, null,null] {$omos = $block.omos;}
| block[null, null] {$omos = $block.omos;}
;
astBlockSuffix
: ROOT
| IMPLIES
| BANG
;
blockSet[GrammarAST label, GrammarAST astOp, boolean invert] returns [List<SrcOp> omos]
: ^(SET atom[null,null,false]+) {$omos = controller.set($SET, $label, $astOp, invert);}
blockSet[GrammarAST label, boolean invert] returns [List<SrcOp> omos]
: ^(SET atom[label,invert]+) {$omos = controller.set($SET, $label, invert);}
;
/*
@ -172,35 +146,32 @@ setElement
// TODO: combine ROOT/BANG into one then just make new op ref'ing return value of atom/terminal...
// TODO: same for NOT
atom[GrammarAST label, GrammarAST astOp, boolean invert] returns [List<SrcOp> omos]
: ^(op=(ROOT|BANG) a=atom[$label, $op, $invert] ) {$omos = $a.omos;}
| ^(NOT a=atom[$label, $astOp, true]) {$omos = $a.omos;}
atom[GrammarAST label, boolean invert] returns [List<SrcOp> omos]
: ^(NOT a=atom[$label, true]) {$omos = $a.omos;}
| range[label] {$omos = $range.omos;}
| ^(DOT ID terminal[$label, null])
| ^(DOT ID ruleref[$label, null])
| ^(WILDCARD .) {$omos = controller.wildcard($WILDCARD, $label, $astOp);}
| WILDCARD {$omos = controller.wildcard($WILDCARD, $label, $astOp);}
| terminal[label, $astOp] {$omos = $terminal.omos;}
| ruleref[label, $astOp] {$omos = $ruleref.omos;}
| blockSet[$label, $astOp, invert] {$omos = $blockSet.omos;}
| ^(DOT ID terminal[$label])
| ^(DOT ID ruleref[$label])
| ^(WILDCARD .) {$omos = controller.wildcard($WILDCARD, $label);}
| WILDCARD {$omos = controller.wildcard($WILDCARD, $label);}
| terminal[label] {$omos = $terminal.omos;}
| ruleref[label] {$omos = $ruleref.omos;}
| blockSet[$label, invert] {$omos = $blockSet.omos;}
;
ruleref[GrammarAST label, GrammarAST astOp] returns [List<SrcOp> omos]
: ^(RULE_REF ARG_ACTION?) {$omos = controller.ruleRef($RULE_REF, $label, $ARG_ACTION, $astOp);}
ruleref[GrammarAST label] returns [List<SrcOp> omos]
: ^(RULE_REF ARG_ACTION?) {$omos = controller.ruleRef($RULE_REF, $label, $ARG_ACTION);}
;
range[GrammarAST label] returns [List<SrcOp> omos]
: ^(RANGE a=STRING_LITERAL b=STRING_LITERAL)
;
terminal[GrammarAST label, GrammarAST astOp] returns [List<SrcOp> omos]
: ^(STRING_LITERAL .) {$omos = controller.stringRef($STRING_LITERAL, $label, $astOp);}
| STRING_LITERAL {$omos = controller.stringRef($STRING_LITERAL, $label, $astOp);}
| ^(TOKEN_REF ARG_ACTION .) {$omos = controller.tokenRef($TOKEN_REF, $label, $ARG_ACTION, $astOp);}
| ^(TOKEN_REF .) {$omos = controller.tokenRef($TOKEN_REF, $label, null, $astOp);}
| TOKEN_REF {$omos = controller.tokenRef($TOKEN_REF, $label, null, $astOp);}
| DOWN_TOKEN {$omos = controller.tokenRef($DOWN_TOKEN, null, null, null);}
| UP_TOKEN {$omos = controller.tokenRef($UP_TOKEN, null, null, null);}
terminal[GrammarAST label] returns [List<SrcOp> omos]
: ^(STRING_LITERAL .) {$omos = controller.stringRef($STRING_LITERAL, $label);}
| STRING_LITERAL {$omos = controller.stringRef($STRING_LITERAL, $label);}
| ^(TOKEN_REF ARG_ACTION .) {$omos = controller.tokenRef($TOKEN_REF, $label, $ARG_ACTION);}
| ^(TOKEN_REF .) {$omos = controller.tokenRef($TOKEN_REF, $label, null);}
| TOKEN_REF {$omos = controller.tokenRef($TOKEN_REF, $label, null);}
;
elementOptions
@ -211,131 +182,5 @@ elementOption
: ID
| ^(ASSIGN ID ID)
| ^(ASSIGN ID STRING_LITERAL)
| ^(ASSIGN ID DOUBLE_QUOTE_STRING_LITERAL)
| ^(ASSIGN ID ACTION)
;
// R E W R I T E S T U F F
rewrite returns [Rewrite code]
: {
controller.treeLevel = 0;
controller.codeBlockLevel++;
$code = controller.treeRewrite($start);
CodeBlock save = controller.getCurrentBlock();
controller.setCurrentBlock($code);
}
( (p=predicatedRewrite {$code.alts.add($p.alt);})+
r=nakedRewrite {$code.alts.add($r.alt);}
| r=nakedRewrite {$code.alts.add($r.alt);}
)
{
controller.setCurrentBlock(save);
controller.codeBlockLevel--;
}
;
predicatedRewrite returns [RewriteChoice alt]
: ^(ST_RESULT SEMPRED rewriteSTAlt)
| ^(RESULT SEMPRED rewriteTreeAlt) {$alt = controller.rewrite_choice((PredAST)$SEMPRED, $rewriteTreeAlt.omos);}
;
nakedRewrite returns [RewriteChoice alt]
: ^(ST_RESULT rewriteSTAlt)
| ^(RESULT rewriteTreeAlt) {$alt = controller.rewrite_choice(null, $rewriteTreeAlt.omos);}
;
rewriteTreeAlt returns [List<SrcOp> omos]
: ^(REWRITE_SEQ
{List<SrcOp> elems = new ArrayList<SrcOp>();}
( rewriteTreeElement {elems.addAll($rewriteTreeElement.omos);} )+
)
{$omos = elems;}
| ETC
| EPSILON {$omos = controller.rewrite_epsilon($EPSILON);}
;
rewriteTreeElement returns [List<SrcOp> omos]
: rewriteTreeAtom[false] {$omos = $rewriteTreeAtom.omos;}
| rewriteTree {$omos = $rewriteTree.omos;}
| rewriteTreeEbnf {$omos = DefaultOutputModelFactory.list($rewriteTreeEbnf.op);}
;
rewriteTreeAtom[boolean isRoot] returns [List<SrcOp> omos]
: ^(TOKEN_REF elementOptions ARG_ACTION) {$omos = controller.rewrite_tokenRef($TOKEN_REF, $isRoot, (ActionAST)$ARG_ACTION);}
| ^(TOKEN_REF elementOptions) {$omos = controller.rewrite_tokenRef($TOKEN_REF, $isRoot, null);}
| ^(TOKEN_REF ARG_ACTION) {$omos = controller.rewrite_tokenRef($TOKEN_REF, $isRoot, (ActionAST)$ARG_ACTION);}
| TOKEN_REF {$omos = controller.rewrite_tokenRef($TOKEN_REF, $isRoot, null);}
| RULE_REF {$omos = controller.rewrite_ruleRef($RULE_REF, $isRoot);}
| ^(STRING_LITERAL elementOptions) {$omos = controller.rewrite_stringRef($STRING_LITERAL, $isRoot);}
| STRING_LITERAL {$omos = controller.rewrite_stringRef($STRING_LITERAL, $isRoot);}
| LABEL {$omos = controller.rewrite_labelRef($LABEL, $isRoot);}
| ACTION {$omos = controller.rewrite_action((ActionAST)$ACTION, $isRoot);}
;
rewriteTreeEbnf returns [CodeBlock op]
: ^( (a=OPTIONAL|a=CLOSURE|a=POSITIVE_CLOSURE)
^( REWRITE_BLOCK
{
controller.codeBlockLevel++;
if ( $a.getType()==OPTIONAL ) $op = controller.rewrite_optional($start);
else $op = controller.rewrite_closure($start);
CodeBlock save = controller.getCurrentBlock();
controller.setCurrentBlock($op);
}
talt=rewriteTreeAlt
)
)
{
$op.addOps($talt.omos);
controller.setCurrentBlock(save);
controller.codeBlockLevel--;
}
;
rewriteTree returns [List<SrcOp> omos]
: {
controller.treeLevel++;
List<SrcOp> elems = new ArrayList<SrcOp>();
RewriteTreeStructure t = controller.rewrite_treeStructure($start);
}
^( TREE_BEGIN
rewriteTreeAtom[true] {elems.addAll($rewriteTreeAtom.omos);}
( rewriteTreeElement {elems.addAll($rewriteTreeElement.omos);} )*
)
{
t.ops = elems;
$omos = DefaultOutputModelFactory.list(t);
controller.treeLevel--;
}
;
rewriteSTAlt returns [List<SrcOp> omos]
: rewriteTemplate
| ETC
| EPSILON
;
rewriteTemplate returns [List<SrcOp> omos]
: ^(TEMPLATE rewriteTemplateArgs? DOUBLE_QUOTE_STRING_LITERAL)
| ^(TEMPLATE rewriteTemplateArgs? DOUBLE_ANGLE_STRING_LITERAL)
| rewriteTemplateRef
| rewriteIndirectTemplateHead
| ACTION
;
rewriteTemplateRef returns [List<SrcOp> omos]
: ^(TEMPLATE ID rewriteTemplateArgs?)
;
rewriteIndirectTemplateHead returns [List<SrcOp> omos]
: ^(TEMPLATE ACTION rewriteTemplateArgs?)
;
rewriteTemplateArgs returns [List<SrcOp> omos]
: ^(ARGLIST rewriteTemplateArg+)
;
rewriteTemplateArg returns [List<SrcOp> omos]
: ^(ARG ID ACTION)
;

15
tool/src/org/antlr/v4/codegen/Target.java
View File

@ -392,21 +392,6 @@ public class Target {
return st.render();
}
// AST
public String getRootName(int level) {
ST st = gen.templates.getInstanceOf("RootName");
st.add("level", level);
return st.render();
}
public String getRewriteIteratorName(GrammarAST elem, int level) {
ST st = gen.templates.getInstanceOf("RewriteIteratorName");
st.add("elemName", getElementName(elem.getText()));
st.add("level", level);
return st.render();
}
public String getElementListName(String name) {
ST st = gen.templates.getInstanceOf("ElementListName");
st.add("elemName", getElementName(name));

72
tool/src/org/antlr/v4/codegen/TreeParserFactory.java
View File

@ -1,72 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen;
import org.antlr.v4.codegen.model.MatchTree;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.codegen.model.TreeParserModel;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.codegen.model.decl.NodeDecl;
import org.antlr.v4.codegen.model.decl.NodeListDecl;
import org.antlr.v4.codegen.model.decl.TokenListDecl;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.List;
public class TreeParserFactory extends ParserFactory {
public TreeParserFactory(CodeGenerator gen) {
super(gen);
}
@Override
public TreeParserFile treeParserFile(String fileName) {
return new TreeParserFile(this, fileName);
}
@Override
public TreeParserModel treeParser(TreeParserFile file) {
return new TreeParserModel(this, file);
}
@Override
public MatchTree tree(GrammarAST treeBeginAST, List<? extends SrcOp> omos) {
return new MatchTree(this, treeBeginAST, omos);
}
@Override
public Decl getTokenLabelDecl(String label) {
return new NodeDecl(this, label);
}
@Override
public TokenListDecl getTokenListLabelDecl(String label) {
return new NodeListDecl(this, gen.target.getListLabel(label));
}
}

38
tool/src/org/antlr/v4/codegen/TreeParserFile.java
View File

@ -1,38 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen;
import org.antlr.v4.codegen.model.ParserFile;
public class TreeParserFile extends ParserFile {
public TreeParserFile(OutputModelFactory factory, String fileName) {
super(factory, fileName);
}
}

7
tool/src/org/antlr/v4/codegen/model/AddToLabelList.java
View File

@ -30,15 +30,16 @@
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.ast.ElementASTOp;
import org.antlr.v4.codegen.model.decl.Decl;
/** */
public class AddToLabelList extends ElementASTOp {
public class AddToLabelList extends SrcOp {
public Decl label;
public String listName;
public AddToLabelList(OutputModelFactory factory, String listName, Decl label) {
super(factory, null, label);
super(factory);
this.label = label;
this.listName = listName;
}
}

11
tool/src/org/antlr/v4/codegen/model/Choice.java
View File

@ -30,12 +30,14 @@
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.decl.*;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.codegen.model.decl.TokenTypeDecl;
import org.antlr.v4.misc.Utils;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.*;
import java.util.ArrayList;
import java.util.List;
/** The class hierarchy underneath SrcOp is pretty deep but makes sense that,
* for example LL1StarBlock is a kind of LL1Loop which is a kind of Choice.
@ -91,11 +93,6 @@ public abstract class Choice extends RuleElement {
public ThrowNoViableAlt getThrowNoViableAlt(OutputModelFactory factory,
GrammarAST blkAST,
IntervalSet expecting) {
if ( factory.getGrammar().isTreeGrammar() ) {
return new ThrowNoViableTreeAlt(factory, blkAST, expecting);
}
else {
return new ThrowNoViableAlt(factory, blkAST, expecting);
}
}
}

39
tool/src/org/antlr/v4/codegen/model/MatchDOWN.java
View File

@ -1,39 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.tool.ast.GrammarAST;
public class MatchDOWN extends RuleElement {
public MatchDOWN(OutputModelFactory factory, GrammarAST ast) {
super(factory, ast);
}
}

87
tool/src/org/antlr/v4/codegen/model/MatchTree.java
View File

@ -1,87 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.misc.Utils;
import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.atn.ATNState;
import org.antlr.v4.runtime.atn.LL1Analyzer;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.tool.ast.GrammarAST;
import org.antlr.v4.tool.ast.TreePatternAST;
import java.util.List;
public class MatchTree extends RuleElement {
public boolean isNullable;
@ModelElement public SrcOp root;
@ModelElement public List<? extends SrcOp> leftActions;
@ModelElement public SrcOp down;
@ModelElement public List<? extends SrcOp> kids;
@ModelElement public SrcOp up;
@ModelElement public List<? extends SrcOp> rightActions;
public MatchTree(OutputModelFactory factory, GrammarAST ast, List<? extends SrcOp> elems) {
super(factory, ast);
TreePatternAST rootNode = (TreePatternAST)ast;
this.isNullable = isNullable(rootNode);
List<? extends SrcOp> afterRoot = elems.subList(1, elems.size());
int downIndex =
Utils.indexOf(afterRoot, new Utils.Filter<SrcOp>() {
public boolean select(SrcOp op) {
return op instanceof MatchToken && ((MatchToken)op).ttype==Token.DOWN;
}
});
downIndex++; // we skipped root
down = elems.get(downIndex);
int upIndex =
Utils.lastIndexOf(elems, new Utils.Filter<SrcOp>() {
public boolean select(SrcOp op) {
return op instanceof MatchToken && ((MatchToken) op).ttype == Token.UP;
}
});
up = elems.get(upIndex);
root = elems.get(0);
leftActions = elems.subList(1, downIndex);
rightActions = elems.subList(upIndex+1, elems.size());
this.kids = elems.subList(downIndex+1, upIndex);
}
boolean isNullable(TreePatternAST rootNode) {
ATNState firstChildState = rootNode.downState.transition(0).target;
LL1Analyzer analyzer = new LL1Analyzer(firstChildState.atn);
IntervalSet look = analyzer.LOOK(firstChildState, ParserRuleContext.EMPTY);
return look.contains(Token.UP);
}
}

39
tool/src/org/antlr/v4/codegen/model/MatchUP.java
View File

@ -1,39 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.tool.ast.GrammarAST;
public class MatchUP extends RuleElement {
public MatchUP(OutputModelFactory factory, GrammarAST ast) {
super(factory, ast);
}
}

5
tool/src/org/antlr/v4/codegen/model/OutputFile.java
View File

@ -35,7 +35,6 @@ import org.antlr.v4.tool.Grammar;
public abstract class OutputFile extends OutputModelObject {
public final String fileName;
public final String TokenLabelType;
public final String ASTLabelType;
public final String InputSymbolType;
public OutputFile(OutputModelFactory factory, String fileName) {
@ -43,8 +42,6 @@ public abstract class OutputFile extends OutputModelObject {
this.fileName = fileName;
Grammar g = factory.getGrammar();
TokenLabelType = g.getOptionString("TokenLabelType");
ASTLabelType = g.getOptionString("ASTLabelType", "CommonAST");
if ( g.isTreeGrammar() ) InputSymbolType = ASTLabelType;
else InputSymbolType = TokenLabelType;
InputSymbolType = TokenLabelType;
}
}

45
tool/src/org/antlr/v4/codegen/model/Rewrite.java
View File

@ -1,45 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.ast.RewriteChoice;
import org.antlr.v4.codegen.model.decl.CodeBlock;
import java.util.*;
/** Either an ST or Tree rewrite */
public class Rewrite extends CodeBlock {
@ModelElement public List<RewriteChoice> alts = new ArrayList<RewriteChoice>();
public Rewrite(OutputModelFactory factory, int treeLevel, int codeBlockLevel) {
super(factory, treeLevel, codeBlockLevel);
}
}

11
tool/src/org/antlr/v4/codegen/model/RuleFunction.java
View File

@ -30,11 +30,14 @@
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.decl.*;
import org.antlr.v4.codegen.model.decl.AltLabelStructDecl;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.codegen.model.decl.StructDecl;
import org.antlr.v4.misc.Utils;
import org.antlr.v4.runtime.atn.ATNState;
import org.antlr.v4.runtime.misc.OrderedHashSet;
import org.antlr.v4.tool.*;
import org.antlr.v4.tool.Attribute;
import org.antlr.v4.tool.Rule;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.*;
@ -73,9 +76,7 @@ public class RuleFunction extends OutputModelObject {
index = r.index;
ruleCtx = r.g.isTreeGrammar() ?
new TreeParserStructDecl(factory, r) :
new StructDecl(factory, r);
ruleCtx = new StructDecl(factory, r);
List<String> labels = r.getAltLabels();
if ( labels!=null ) {

43
tool/src/org/antlr/v4/codegen/model/ThrowNoViableTreeAlt.java
View File

@ -1,43 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.runtime.misc.IntervalSet;
import org.antlr.v4.tool.ast.GrammarAST;
public class ThrowNoViableTreeAlt extends ThrowNoViableAlt {
public ThrowNoViableTreeAlt(OutputModelFactory factory,
GrammarAST blkOrEbnfRootAST,
IntervalSet expecting)
{
super(factory, blkOrEbnfRootAST, expecting);
}
}

47
tool/src/org/antlr/v4/codegen/model/TreeParserModel.java
View File

@ -1,47 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.actions.ActionText;
import org.antlr.v4.codegen.model.actions.DefaultTreeParserSuperClass;
import org.antlr.v4.tool.Grammar;
public class TreeParserModel extends Parser {
public TreeParserModel(OutputModelFactory factory, ParserFile file) {
super(factory, file);
Grammar g = factory.getGrammar();
if (g.getOptionString("superClass") != null) {
superclass = new ActionText(g.getOptionString("superClass"));
} else {
superclass = new DefaultTreeParserSuperClass();
}
}
}

33
tool/src/org/antlr/v4/codegen/model/actions/DefaultTreeParserSuperClass.java
View File

@ -1,33 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.actions;
public class DefaultTreeParserSuperClass extends ActionChunk {
}

33
tool/src/org/antlr/v4/codegen/model/actions/ParserASTExtensionMembers.java
View File

@ -1,33 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.actions;
public class ParserASTExtensionMembers extends ActionChunk {
}

37
tool/src/org/antlr/v4/codegen/model/actions/RulePropertyRef_st.java
View File

@ -1,37 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.actions;
/** */
public class RulePropertyRef_st extends RulePropertyRef {
public RulePropertyRef_st(String label) {
super(label);
}
}

37
tool/src/org/antlr/v4/codegen/model/actions/RulePropertyRef_tree.java
View File

@ -1,37 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.actions;
/** */
public class RulePropertyRef_tree extends RulePropertyRef {
public RulePropertyRef_tree(String label) {
super(label);
}
}

37
tool/src/org/antlr/v4/codegen/model/actions/ThisRulePropertyRef_st.java
View File

@ -1,37 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.actions;
/** */
public class ThisRulePropertyRef_st extends RulePropertyRef {
public ThisRulePropertyRef_st(String label) {
super(label);
}
}

37
tool/src/org/antlr/v4/codegen/model/actions/ThisRulePropertyRef_tree.java
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@ -1,37 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.actions;
/** */
public class ThisRulePropertyRef_tree extends RulePropertyRef {
public ThisRulePropertyRef_tree(String label) {
super(label);
}
}

37
tool/src/org/antlr/v4/codegen/model/actions/TokenPropertyRef_tree.java
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@ -1,37 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.actions;
/** */
public class TokenPropertyRef_tree extends TokenPropertyRef {
public TokenPropertyRef_tree(String label) {
super(label);
}
}

44
tool/src/org/antlr/v4/codegen/model/ast/AddChild.java
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@ -1,44 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.*;
public class AddChild extends SrcOp {
public String rootName;
@ModelElement public SrcOp child;
public AddChild(OutputModelFactory factory, String rootName, SrcOp child) {
super(factory);
this.rootName = rootName;
this.child = child;
}
}

39
tool/src/org/antlr/v4/codegen/model/ast/AssignTreeResult.java
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@ -1,39 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
public class AssignTreeResult extends SrcOp {
public AssignTreeResult(OutputModelFactory factory) {
super(factory);
}
}

44
tool/src/org/antlr/v4/codegen/model/ast/BecomeRoot.java
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@ -1,44 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.*;
public class BecomeRoot extends SrcOp {
public String rootName;
@ModelElement public SrcOp newRoot;
public BecomeRoot(OutputModelFactory factory, String rootName, SrcOp newRoot) {
super(factory);
this.rootName = rootName;
this.newRoot = newRoot;
}
}

43
tool/src/org/antlr/v4/codegen/model/ast/ClearElementList.java
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@ -1,43 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.tool.ast.GrammarAST;
public class ClearElementList extends SrcOp {
public String name;
public ClearElementList(OutputModelFactory factory, GrammarAST ast, String name) {
super(factory, ast);
this.name = name;
}
}

44
tool/src/org/antlr/v4/codegen/model/ast/ElementASTOp.java
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@ -1,44 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.tool.ast.GrammarAST;
public class ElementASTOp extends SrcOp {
public Decl label;
public ElementASTOp(OutputModelFactory factory, GrammarAST ast, Decl label) {
super(factory, ast);
this.label = label;
}
}

35
tool/src/org/antlr/v4/codegen/model/ast/ParserASTContextInterface.java
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@ -1,35 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.model.OutputModelObject;
public class ParserASTContextInterface extends OutputModelObject {
}

35
tool/src/org/antlr/v4/codegen/model/ast/ParserASTContextMembers.java
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@ -1,35 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.model.OutputModelObject;
public class ParserASTContextMembers extends OutputModelObject {
}

52
tool/src/org/antlr/v4/codegen/model/ast/RewriteAction.java
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@ -1,52 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.ActionTranslator;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.ModelElement;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.codegen.model.actions.ActionChunk;
import org.antlr.v4.tool.ast.ActionAST;
import java.util.List;
public class RewriteAction extends SrcOp {
@ModelElement public List<ActionChunk> chunks;
public RewriteAction(OutputModelFactory factory, ActionAST ast) {
super(factory, ast);
if ( ast!=null ) {
chunks = ActionTranslator.translateAction(factory,
factory.getCurrentRuleFunction(),
ast.token, ast);
}
}
}

50
tool/src/org/antlr/v4/codegen/model/ast/RewriteChoice.java
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@ -1,50 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.*;
import java.util.List;
/** A collection of operations possibly with a predicate
* that indicates whether to apply the rewrite.
* This is a single alternative and a list of predicated choices.
*/
public class RewriteChoice extends SrcOp {
@ModelElement public SrcOp predicate;
@ModelElement public List<SrcOp> ops;
public RewriteChoice(OutputModelFactory factory, SrcOp predicate, List<SrcOp> ops) {
super(factory);
this.predicate = predicate;
this.ops = ops;
}
}

60
tool/src/org/antlr/v4/codegen/model/ast/RewriteImagTokenRef.java
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@ -1,60 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.ActionTranslator;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.ModelElement;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.codegen.model.actions.ActionChunk;
import org.antlr.v4.tool.ast.ActionAST;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.List;
public class RewriteImagTokenRef extends SrcOp {
public String tokenType;
@ModelElement public List<ActionChunk> argChunks;
public RewriteImagTokenRef(OutputModelFactory factory,
GrammarAST ast,
String tokenType,
ActionAST argAST)
{
super(factory, ast);
this.tokenType = tokenType;
if ( argAST!=null ) {
argChunks = ActionTranslator.translateAction(factory,
factory.getCurrentRuleFunction(),
argAST.token, argAST);
}
}
}

42
tool/src/org/antlr/v4/codegen/model/ast/RewriteIteratorInit.java
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@ -1,42 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.codegen.model.decl.RewriteIteratorDecl;
public class RewriteIteratorInit extends SrcOp {
public RewriteIteratorDecl decl;
public RewriteIteratorInit(OutputModelFactory factory, RewriteIteratorDecl decl) {
super(factory);
this.decl = decl;
}
}

44
tool/src/org/antlr/v4/codegen/model/ast/RewriteLabelRef.java
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@ -1,44 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.tool.ast.GrammarAST;
public class RewriteLabelRef extends SrcOp {
public String iterName;
public RewriteLabelRef(OutputModelFactory factory, GrammarAST ast,
String iterName) {
super(factory, ast);
this.iterName = iterName;
}
}

45
tool/src/org/antlr/v4/codegen/model/ast/RewriteRuleRef.java
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@ -1,45 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.tool.ast.GrammarAST;
public class RewriteRuleRef extends SrcOp {
public String iterName;
public RewriteRuleRef(OutputModelFactory factory, GrammarAST ast,
String iterName)
{
super(factory, ast);
this.iterName = iterName;
}
}

40
tool/src/org/antlr/v4/codegen/model/ast/RewriteSelfRuleLabelRef.java
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@ -1,40 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.tool.ast.GrammarAST;
public class RewriteSelfRuleLabelRef extends SrcOp {
public RewriteSelfRuleLabelRef(OutputModelFactory factory, GrammarAST ast) {
super(factory, ast);
}
}

44
tool/src/org/antlr/v4/codegen/model/ast/RewriteTokenRef.java
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@ -1,44 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.tool.ast.GrammarAST;
public class RewriteTokenRef extends SrcOp {
public String iterName;
public RewriteTokenRef(OutputModelFactory factory, GrammarAST ast,
String iterName)
{
super(factory, ast);
this.iterName = iterName;
}
}

49
tool/src/org/antlr/v4/codegen/model/ast/RewriteTreeClosure.java
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@ -1,49 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.decl.CodeBlock;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.ArrayList;
import java.util.List;
public class RewriteTreeClosure extends CodeBlock {
public List<Decl> iteratorDecls = new ArrayList<Decl>();
public RewriteTreeClosure(OutputModelFactory factory, GrammarAST ast,
int treeLevel, int codeBlockLevel)
{
super(factory, treeLevel, codeBlockLevel);
this.ast = ast;
}
}

48
tool/src/org/antlr/v4/codegen/model/ast/RewriteTreeOptional.java
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@ -1,48 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.decl.CodeBlock;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.ArrayList;
import java.util.List;
public class RewriteTreeOptional extends CodeBlock {
public List<Decl> conditionalDecls = new ArrayList<Decl>();
public RewriteTreeOptional(OutputModelFactory factory, GrammarAST ast,
int treeLevel, int codeBlockLevel) {
super(factory, treeLevel, codeBlockLevel);
this.ast = ast;
}
}

67
tool/src/org/antlr/v4/codegen/model/ast/RewriteTreeStructure.java
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@ -1,67 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.ModelElement;
import org.antlr.v4.codegen.model.SrcOp;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.runtime.misc.OrderedHashSet;
import org.antlr.v4.tool.ast.GrammarAST;
import java.util.List;
/** ^(A B C) */
public class RewriteTreeStructure extends SrcOp {
public int treeLevel;
public int codeBlockLevel;
@ModelElement public List<SrcOp> ops;
@ModelElement public OrderedHashSet<Decl> locals;
public RewriteTreeStructure(OutputModelFactory factory,
GrammarAST ast,
int treeLevel,
int codeBlockLevel)
{
super(factory, ast);
this.treeLevel = treeLevel;
this.codeBlockLevel = codeBlockLevel;
}
/** Add local var decl */
public void addLocalDecl(Decl d) {
if ( locals==null ) locals = new OrderedHashSet<Decl>();
locals.add(d);
d.isLocal = true;
}
public int getEnclosingTreeLevel() { return treeLevel - 1; }
}

40
tool/src/org/antlr/v4/codegen/model/ast/RuleAST.java
View File

@ -1,40 +0,0 @@
/*
[The "BSD license"]
Copyright (c) 2011 Terence Parr
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.model.ast;
import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.codegen.model.decl.Decl;
import org.antlr.v4.tool.ast.GrammarAST;
public class RuleAST extends ElementASTOp {
public RuleAST(OutputModelFactory factory, GrammarAST ast, Decl label) {
super(factory, ast, label);
}
}

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