forked from jasder/antlr
First steps on converting tool template to Go
This commit is contained in:
Peter Boyer
parent
9f9cd374b4
commit
5d046e256b
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@ -1,34 +1,3 @@
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/*
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* [The "BSD license"]
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* Copyright (c) 2012 Terence Parr
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* Copyright (c) 2012 Sam Harwell
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* Copyright (c) 2014 Eric Vergnaud
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** ANTLR tool checks output templates are compatible with tool code generation.
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* For now, a simple string match used on x.y of x.y.z scheme.
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* Must match Tool.VERSION during load to templates.
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@ -44,14 +13,23 @@ pythonTypeInitMap ::= [
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default:"None" // anything other than a primitive type is an object
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]
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// args must be <object-model-object>, <fields-resulting-in-STs>
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ParserFile(file, parser, namedActions) ::= <<
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<fileHeader(file.grammarFileName, file.ANTLRVersion)>
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var antlr4 = require('antlr4/index');
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import ("antlr")
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<if(file.genListener)>
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var <file.grammarName>Listener = require('./<file.grammarName>Listener').<file.grammarName>Listener;
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<endif>
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<if(file.genVisitor)>
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var <file.grammarName>Visitor = require('./<file.grammarName>Visitor').<file.grammarName>Visitor;
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<endif>
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@ -60,65 +38,72 @@ var <file.grammarName>Visitor = require('./<file.grammarName>Visitor').<file.gra
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<parser>
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>>
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ListenerFile(file, header) ::= <<
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<fileHeader(file.grammarFileName, file.ANTLRVersion)>
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var antlr4 = require('antlr4/index');
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package <file.grammarName>
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import(
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"antlr4"
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)
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// This class defines a complete listener for a parse tree produced by <file.parserName>.
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function <file.grammarName>Listener() {
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antlr4.tree.ParseTreeListener.call(this);
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return this;
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}
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<file.grammarName>Listener.prototype = Object.create(antlr4.tree.ParseTreeListener.prototype);
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<file.grammarName>Listener.prototype.constructor = <file.grammarName>Listener;
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type <file.grammarName>Listener struct {
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ParseTreeListener
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}
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<file.listenerNames:{lname |
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// Enter a parse tree produced by <file.parserName>#<lname>.
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<file.grammarName>Listener.prototype.enter<lname; format="cap"> = function(ctx) {
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\};
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func (l <file.grammarName>Listener) enter<lname; format="cap">(ctx) {
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\}
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// Exit a parse tree produced by <file.parserName>#<lname>.
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<file.grammarName>Listener.prototype.exit<lname; format="cap"> = function(ctx) {
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\};
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func (l <file.grammarName>Listener) exit<lname; format="cap">(ctx) {
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\}
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}; separator="\n">
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exports.<file.grammarName>Listener = <file.grammarName>Listener;
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>>
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VisitorFile(file, header) ::= <<
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<fileHeader(file.grammarFileName, file.ANTLRVersion)>
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var antlr4 = require('antlr4/index');
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import("antlr4")
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<header>
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// This class defines a complete generic visitor for a parse tree produced by <file.parserName>.
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function <file.grammarName>Visitor() {
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antlr4.tree.ParseTreeVisitor.call(this);
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return this;
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type <file.grammarName>Visitor struct {
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ParseTreeVisitor
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}
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<file.grammarName>Visitor.prototype = Object.create(antlr4.tree.ParseTreeVisitor.prototype);
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<file.grammarName>Visitor.prototype.constructor = <file.grammarName>Visitor;
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<file.visitorNames:{lname |
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// Visit a parse tree produced by <file.parserName>#<lname>.
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<file.grammarName>Visitor.prototype.visit<lname; format="cap"> = function(ctx) {
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\};
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func (l <file.grammarName>Visitor) visit<lname; format="cap">(ctx) {
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\}
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}; separator="\n">
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exports.<file.grammarName>Visitor = <file.grammarName>Visitor;
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>>
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fileHeader(grammarFileName, ANTLRVersion) ::= <<
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// Generated from <grammarFileName; format="java-escape"> by ANTLR <ANTLRVersion>
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// jshint ignore: start
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>>
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Parser(parser, funcs, atn, sempredFuncs, superClass) ::= <<
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<if(superClass)>
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var <superClass> = require('./<superClass>').<superClass>;
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@ -247,6 +232,10 @@ RuleSempredFunction(r, actions) ::= <<
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>>
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RuleFunction(currentRule,args,code,locals,ruleCtx,altLabelCtxs,namedActions,finallyAction,postamble,exceptions) ::= <<
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<ruleCtx>
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@ -326,18 +315,27 @@ LeftRecursiveRuleFunction(currentRule,args,code,locals,ruleCtx,altLabelCtxs,
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>>
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CodeBlockForOuterMostAlt(currentOuterMostAltCodeBlock, locals, preamble, ops) ::= <<
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<if(currentOuterMostAltCodeBlock.altLabel)>localctx = new <currentOuterMostAltCodeBlock.altLabel; format="cap">Context(this, localctx);<endif>
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this.enterOuterAlt(localctx, <currentOuterMostAltCodeBlock.alt.altNum>);
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<CodeBlockForAlt(currentAltCodeBlock=currentOuterMostAltCodeBlock, ...)>
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>>
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CodeBlockForAlt(currentAltCodeBlock, locals, preamble, ops) ::= <<
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<locals; separator="\n">
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<preamble; separator="\n">
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<ops; separator="\n">
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>>
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LL1AltBlock(choice, preamble, alts, error) ::= <<
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this.state = <choice.stateNumber>;
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<if(choice.label)><labelref(choice.label)> = this._input.LT(1);<endif>
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@ -351,6 +349,9 @@ default:
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}
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>>
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LL1OptionalBlock(choice, alts, error) ::= <<
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this.state = <choice.stateNumber>;
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switch (this._input.LA(1)) {
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@ -362,6 +363,9 @@ default:
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}
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>>
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LL1OptionalBlockSingleAlt(choice, expr, alts, preamble, error, followExpr) ::= <<
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this.state = <choice.stateNumber>;
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<preamble; separator="\n">
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@ -732,6 +736,8 @@ ListenerDispatchMethod(method) ::= <<
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>>
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VisitorDispatchMethod(method) ::= <<
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<struct.name>.prototype.accept = function(visitor) {
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if ( visitor instanceof <parser.grammarName>Visitor ) {
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@ -743,6 +749,9 @@ VisitorDispatchMethod(method) ::= <<
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>>
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AttributeDecl(d) ::= "this.<d.name> = <if(d.initValue)><d.initValue><else>null<endif>"
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/** If we don't know location of label def x, use this template */
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@ -798,15 +807,18 @@ var antlr4 = require('antlr4/index');
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>>
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Lexer(lexer, atn, actionFuncs, sempredFuncs, superClass) ::= <<
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<atn>
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var atn = new antlr4.atn.ATNDeserializer().deserialize(serializedATN);
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// TODO var atn = new antlr4.atn.ATNDeserializer().deserialize(serializedATN);
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var decisionsToDFA = atn.decisionToState.map( function(ds, index) { return new antlr4.dfa.DFA(ds, index); });
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// TODO var decisionsToDFA = atn.decisionToState.map( function(ds, index) { return new antlr4.dfa.DFA(ds, index); });
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function <lexer.name>(input) {
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// TODO function <lexer.name>(input) {
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<if(superClass)><superClass><else>antlr4.Lexer<endif>.call(this, input);
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this._interp = new antlr4.atn.LexerATNSimulator(this, atn, decisionsToDFA, new antlr4.PredictionContextCache());
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return this;
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@ -852,4 +864,4 @@ initValue(typeName) ::= <<
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<javaTypeInitMap.(typeName)>
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>>
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codeFileExtension() ::= ".js"
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codeFileExtension() ::= ".go"
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