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add support for $self

This commit is contained in:
ericvergnaud 2014-11-30 16:28:36 +08:00
parent 8cc929f942
commit a47ee4d853
6 changed files with 114 additions and 6 deletions
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2
tool/resources/org/antlr/v4/tool/templates/codegen/Java/Java.stg
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@ -711,11 +711,13 @@ RulePropertyRef_start(r) ::= "(<ctx(r)>.<r.label>!=null?(<ctx(r)>.<r.label>.star
RulePropertyRef_stop(r) ::= "(<ctx(r)>.<r.label>!=null?(<ctx(r)>.<r.label>.stop):null)"
RulePropertyRef_text(r) ::= "(<ctx(r)>.<r.label>!=null?_input.getText(<ctx(r)>.<r.label>.start,<ctx(r)>.<r.label>.stop):null)"
RulePropertyRef_ctx(r) ::= "<ctx(r)>.<r.label>"
RulePropertyRef_self(r) ::= "this"
ThisRulePropertyRef_start(r) ::= "_localctx.start"
ThisRulePropertyRef_stop(r) ::= "_localctx.stop"
ThisRulePropertyRef_text(r) ::= "_input.getText(_localctx.start, _input.LT(-1))"
ThisRulePropertyRef_ctx(r) ::= "_localctx"
ThisRulePropertyRef_self(r) ::= "this"
NonLocalAttrRef(s) ::= "((<s.ruleName; format=\"cap\">Context)getInvokingContext(<s.ruleIndex>)).<s.name>"
SetNonLocalAttr(s, rhsChunks) ::=

16
tool/src/org/antlr/v4/codegen/ActionTranslator.java
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@ -30,6 +30,12 @@
package org.antlr.v4.codegen;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.antlr.runtime.ANTLRStringStream;
import org.antlr.runtime.Token;
import org.antlr.v4.codegen.model.RuleFunction;
@ -44,12 +50,14 @@ import org.antlr.v4.codegen.model.chunk.QRetValueRef;
import org.antlr.v4.codegen.model.chunk.RetValueRef;
import org.antlr.v4.codegen.model.chunk.RulePropertyRef;
import org.antlr.v4.codegen.model.chunk.RulePropertyRef_ctx;
import org.antlr.v4.codegen.model.chunk.RulePropertyRef_self;
import org.antlr.v4.codegen.model.chunk.RulePropertyRef_start;
import org.antlr.v4.codegen.model.chunk.RulePropertyRef_stop;
import org.antlr.v4.codegen.model.chunk.RulePropertyRef_text;
import org.antlr.v4.codegen.model.chunk.SetAttr;
import org.antlr.v4.codegen.model.chunk.SetNonLocalAttr;
import org.antlr.v4.codegen.model.chunk.ThisRulePropertyRef_ctx;
import org.antlr.v4.codegen.model.chunk.ThisRulePropertyRef_self;
import org.antlr.v4.codegen.model.chunk.ThisRulePropertyRef_start;
import org.antlr.v4.codegen.model.chunk.ThisRulePropertyRef_stop;
import org.antlr.v4.codegen.model.chunk.ThisRulePropertyRef_text;
@ -71,12 +79,6 @@ import org.antlr.v4.tool.Grammar;
import org.antlr.v4.tool.Rule;
import org.antlr.v4.tool.ast.ActionAST;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/** */
public class ActionTranslator implements ActionSplitterListener {
public static final Map<String, Class<? extends RulePropertyRef>> thisRulePropToModelMap =
@ -86,6 +88,7 @@ public class ActionTranslator implements ActionSplitterListener {
thisRulePropToModelMap.put("stop", ThisRulePropertyRef_stop.class);
thisRulePropToModelMap.put("text", ThisRulePropertyRef_text.class);
thisRulePropToModelMap.put("ctx", ThisRulePropertyRef_ctx.class);
thisRulePropToModelMap.put("self", ThisRulePropertyRef_self.class);
}
public static final Map<String, Class<? extends RulePropertyRef>> rulePropToModelMap =
@ -95,6 +98,7 @@ public class ActionTranslator implements ActionSplitterListener {
rulePropToModelMap.put("stop", RulePropertyRef_stop.class);
rulePropToModelMap.put("text", RulePropertyRef_text.class);
rulePropToModelMap.put("ctx", RulePropertyRef_ctx.class);
rulePropToModelMap.put("self", RulePropertyRef_self.class);
}
public static final Map<String, Class<? extends TokenPropertyRef>> tokenPropToModelMap =

40
tool/src/org/antlr/v4/codegen/model/chunk/RulePropertyRef_self.java Normal file
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@ -0,0 +1,40 @@
/*
* [The "BSD license"]
* Copyright (c) 2012 Terence Parr
* Copyright (c) 2012 Sam Harwell
* 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.chunk;
import org.antlr.v4.codegen.model.decl.StructDecl;
/** */
public class RulePropertyRef_self extends RulePropertyRef {
public RulePropertyRef_self(StructDecl ctx, String label) {
super(ctx, label);
}
}

40
tool/src/org/antlr/v4/codegen/model/chunk/ThisRulePropertyRef_self.java Normal file
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@ -0,0 +1,40 @@
/*
* [The "BSD license"]
* Copyright (c) 2012 Terence Parr
* Copyright (c) 2012 Sam Harwell
* 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.chunk;
import org.antlr.v4.codegen.model.decl.StructDecl;
/** */
public class ThisRulePropertyRef_self extends RulePropertyRef {
public ThisRulePropertyRef_self(StructDecl ctx, String label) {
super(ctx, label);
}
}

1
tool/src/org/antlr/v4/tool/Rule.java
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@ -55,6 +55,7 @@ public class Rule implements AttributeResolver {
public static final AttributeDict predefinedRulePropertiesDict =
new AttributeDict(AttributeDict.DictType.PREDEFINED_RULE);
static {
predefinedRulePropertiesDict.add(new Attribute("self"));
predefinedRulePropertiesDict.add(new Attribute("text"));
predefinedRulePropertiesDict.add(new Attribute("start"));
predefinedRulePropertiesDict.add(new Attribute("stop"));

21
tool/test/org/antlr/v4/test/tool/TestDollarSelf.java Normal file
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@ -0,0 +1,21 @@
package org.antlr.v4.test.tool;
import static org.junit.Assert.*;
import org.antlr.v4.test.rt.java.BaseTest;
import org.junit.Test;
public class TestDollarSelf extends BaseTest {
@Test
public void testSimpleCall() throws Exception {
String grammar = "grammar T;\n" +
"a : ID { System.out.println( $self.getSourceName() ); }\n" +
" ;\n" +
"ID : 'a'..'z'+ ;\n";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "a", "x", true);
assertTrue(found.indexOf(this.getClass().getSimpleName())>=0);
assertNull(this.stderrDuringParse);
}
}