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Generate method stub so external calls directly to LR rules do not require the precedence argument

This commit is contained in:
Sam Harwell 2013-11-15 16:11:43 -06:00
parent df0bbf42e1
commit 6eb8111756
2 changed files with 5 additions and 2 deletions
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6
tool/resources/org/antlr/v4/tool/templates/codegen/Java/Java.stg
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@ -359,7 +359,11 @@ LeftRecursiveRuleFunction(currentRule,code,locals,ruleCtx,altLabelCtxs,
<ruleCtx> <ruleCtx>
<altLabelCtxs:{l | <altLabelCtxs.(l)>}; separator="\n"> <altLabelCtxs:{l | <altLabelCtxs.(l)>}; separator="\n">
<if(currentRule.modifiers)><currentRule.modifiers:{f | <f> }><else>public final <endif><currentRule.ctxType> <currentRule.name>(int _p<currentRule.args:{a | , <a>}>) throws RecognitionException { <if(currentRule.modifiers)><currentRule.modifiers:{f | <f> }><else>public final <endif><currentRule.ctxType> <currentRule.name>(<currentRule.args; separator=", ">) throws RecognitionException {
return <currentRule.name>(0<currentRule.args:{a | , <a.name>}>);
}
private <currentRule.ctxType> <currentRule.name>(int _p<currentRule.args:{a | , <a>}>) throws RecognitionException {
ParserRuleContext _parentctx = _ctx; ParserRuleContext _parentctx = _ctx;
int _parentState = getState(); int _parentState = getState();
<currentRule.ctxType> _localctx = new <currentRule.ctxType>(_ctx, _parentState<currentRule.args:{a | , <a.name>}>); <currentRule.ctxType> _localctx = new <currentRule.ctxType>(_ctx, _parentState<currentRule.args:{a | , <a.name>}>);

1
tool/test/org/antlr/v4/test/TestLeftRecursion.java
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@ -73,7 +73,6 @@ public class TestLeftRecursion extends BaseTest {
@Test public void testDirectCallToLeftRecursiveRule() throws Exception { @Test public void testDirectCallToLeftRecursiveRule() throws Exception {
String grammar = String grammar =
"grammar T;\n" + "grammar T;\n" +
"@parser::members{public AContext a() { return a(0); }}\n" +
"a @after {System.out.println($ctx.toStringTree(this));} : a ID\n" + "a @after {System.out.println($ctx.toStringTree(this));} : a ID\n" +
" | ID" + " | ID" +
" ;\n" + " ;\n" +