forgetest1
/
antlr
forked from jasder/antlr
1
0
Fork 0
Code Issues Pull Requests 1 Releases Wiki Activity

got core ^ and ! ops in 

[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 8791]
This commit is contained in:
parrt 2011-06-28 16:15:31 -08:00
parent 15fbaccb6d
commit 2d5c4fd686
3 changed files with 28 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tool/playground/T.g
View File

@ -1,6 +1,6 @@
parser grammar T;
options {output=AST;}
a : A^ b ;
a : x+=A^ y+=b B! b!;
b : B ;
/*

12
tool/resources/org/antlr/v4/tool/templates/codegen/Java/Java.stg
View File

@ -104,17 +104,17 @@ public QStack\<<currentRule.ctxType>\> <currentRule.name>_stk = new QStack\<<cur
try {
<code>
<postamble; separator="\n">
_localctx.stop = input.LT(-1);
<namedActions.after>
}
catch (RecognitionException re) {
reportError(re);
recover();
}
finally {
_localctx.stop = input.LT(-1);
<namedActions.after>
<currentRule.name>_stk.pop();
<finallyAction>
_ctx = (ParserRuleContext)_ctx.parent;
<finallyAction>
//System.out.println("exit "+ruleNames[<currentRule.index>]);
}
return _localctx;
@ -266,12 +266,12 @@ cases(ttypes) ::= <<
>>
InvokeRule(r) ::= <<
_ctx.s = <r.stateNumber>;
_localctx.s = <r.stateNumber>;
<if(r.labels)><r.labels:{l | <labelref(l)> = }><endif><r.name>(<r.argExprs:{e| <e>}; separator=",">);
>>
MatchToken(m) ::= <<
_ctx.s = <m.stateNumber>;
_localctx.s = <m.stateNumber>;
<if(m.labels)><m.labels:{l | <labelref(l)> = }>(Token)<endif>match(<m.name>);
>>
@ -323,7 +323,7 @@ SetDynScopeAttr_negIndex(s, indexChunks, rhsChunks) ::=
SetDynScopeAttr_index(s, indexChunks, rhsChunks) ::=
"<s.scope>.get(<indexChunks>).<s.attr> =<rhsChunks>;"
AddToLabelList(a) ::= "_localctx.<a.listName>.add(_localctx.<first(a.opWithResultToAdd.labels)>);"
AddToLabelList(a) ::= "_localctx.<a.listName>.add(<labelref(first(a.opWithResultToAdd.labels))>);"
TokenDecl(t) ::= "Token <t.name>;"
TokenTypeDecl(t) ::= "int <t.name>;"

22
tool/src/org/antlr/v4/codegen/ParserASTExtension.java
View File

@ -1,8 +1,10 @@
package org.antlr.v4.codegen;
import org.antlr.runtime.tree.Tree;
import org.antlr.v4.codegen.model.*;
import org.antlr.v4.codegen.model.ast.*;
import org.antlr.v4.misc.Utils;
import org.antlr.v4.parse.ANTLRParser;
import java.util.List;
@ -18,15 +20,33 @@ public class ParserASTExtension extends CodeGeneratorExtension {
}
@Override
public List<SrcOp> ruleRef(List<SrcOp> ops) {
public List<SrcOp> rootRule(List<SrcOp> ops) {
InvokeRule invokeOp = (InvokeRule)Utils.find(ops, InvokeRule.class);
SrcOp treeOp = new BecomeRoot(factory, invokeOp.ast, invokeOp);
return DefaultOutputModelFactory.list(ops, treeOp);
}
@Override
public List<SrcOp> rootToken(List<SrcOp> ops) {
MatchToken matchOp = (MatchToken)Utils.find(ops, MatchToken.class);
SrcOp treeOp = new BecomeRoot(factory, matchOp.ast, matchOp);
return DefaultOutputModelFactory.list(ops, treeOp);
}
@Override
public List<SrcOp> ruleRef(List<SrcOp> ops) {
InvokeRule invokeOp = (InvokeRule)Utils.find(ops, InvokeRule.class);
Tree parent = invokeOp.ast.getParent();
if ( parent!=null && parent.getType()==ANTLRParser.BANG ) return ops;
SrcOp treeOp = new AddLeaf(factory, invokeOp.ast, invokeOp);
return DefaultOutputModelFactory.list(ops, treeOp);
}
@Override
public List<SrcOp> tokenRef(List<SrcOp> ops) {
MatchToken matchOp = (MatchToken)Utils.find(ops, MatchToken.class);
Tree parent = matchOp.ast.getParent();
if ( parent!=null && parent.getType()==ANTLRParser.BANG ) return ops;
SrcOp treeOp = new AddLeaf(factory, matchOp.ast, matchOp);
return DefaultOutputModelFactory.list(ops, treeOp);
}