org.antlr.v4.tool.templates.codegen.Java.Java.stg Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of antlr4 Show documentation
Show all versions of antlr4 Show documentation
The ANTLR 4 grammar compiler.
/*
* [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.
*/
javaTypeInitMap ::= [
"int":"0",
"long":"0",
"float":"0.0f",
"double":"0.0",
"boolean":"false",
"byte":"0",
"short":"0",
"char":"0",
default:"null" // anything other than a primitive type is an object
]
// args must be ,
ParserFile(file, parser, namedActions) ::= <<
package ;
import org.antlr.v4.runtime.atn.*;
import org.antlr.v4.runtime.dfa.DFA;
import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.misc.*;
import org.antlr.v4.runtime.tree.*;
import java.util.List;
import java.util.Iterator;
import java.util.ArrayList;
>>
ListenerFile(file, header) ::= <<
package ;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.tree.ParseTreeListener;
/**
* This interface defines a complete listener for a parse tree produced by
* {@link }.
*/
public interface Listener extends ParseTreeListener {
#\}.
* @param ctx the parse tree
*/
void enter(@NotNull .Context ctx);
/**
* Exit a parse tree produced by {@link #\}.
* @param ctx the parse tree
*/
void exit(@NotNull .Context ctx);}; separator="\n">
}
>>
BaseListenerFile(file, header) ::= <<
package ;
import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.tree.ErrorNode;
import org.antlr.v4.runtime.tree.TerminalNode;
/**
* This class provides an empty implementation of {@link Listener},
* which can be extended to create a listener which only needs to handle a subset
* of the available methods.
*/
public class BaseListener implements Listener {
The default implementation does nothing.\
*/
@Override public void enter(@NotNull .Context ctx) { \}
/**
* {@inheritDoc\}
*
* \The default implementation does nothing.\
*/
@Override public void exit(@NotNull .Context ctx) { \}}; separator="\n">
/**
* {@inheritDoc\}
*
* \The default implementation does nothing.\
*/
@Override public void enterEveryRule(@NotNull ParserRuleContext ctx) { }
/**
* {@inheritDoc\}
*
* \The default implementation does nothing.\
*/
@Override public void exitEveryRule(@NotNull ParserRuleContext ctx) { }
/**
* {@inheritDoc\}
*
* \The default implementation does nothing.\
*/
@Override public void visitTerminal(@NotNull TerminalNode node) { }
/**
* {@inheritDoc\}
*
* \The default implementation does nothing.\
*/
@Override public void visitErrorNode(@NotNull ErrorNode node) { }
}
>>
VisitorFile(file, header) ::= <<
package ;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.tree.ParseTreeVisitor;
/**
* This interface defines a complete generic visitor for a parse tree produced
* by {@link }.
*
* @param \ The return type of the visit operation. Use {@link Void} for
* operations with no return type.
*/
public interface Visitor\ extends ParseTreeVisitor\ {
#\}.
* @param ctx the parse tree
* @return the visitor result
*/
Result visit(@NotNull .Context ctx);}; separator="\n">
}
>>
BaseVisitorFile(file, header) ::= <<
package ;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.tree.AbstractParseTreeVisitor;
/**
* This class provides an empty implementation of {@link Visitor},
* which can be extended to create a visitor which only needs to handle a subset
* of the available methods.
*
* @param \ The return type of the visit operation. Use {@link Void} for
* operations with no return type.
*/
public class BaseVisitor\ extends AbstractParseTreeVisitor\ implements Visitor\ {
The default implementation returns the result of calling
* {@link #visitChildren\} on {@code ctx\}.\
*/
@Override public Result visit(@NotNull .Context ctx) { return visitChildren(ctx); \}}; separator="\n">
}
>>
fileHeader(grammarFileName, ANTLRVersion) ::= <<
// Generated from by ANTLR
>>
Parser(parser, funcs, atn, sempredFuncs, superClass) ::= <<
>>
Parser_(parser, funcs, atn, sempredFuncs, ctor, superClass) ::= <<
public abstract class extends {
public static final int
=}; separator=", ", wrap, anchor>;
public static final String[] tokenNames = {
}; null="\"\\"", separator=", ", wrap, anchor>
};
public static final int
= }; separator=", ", wrap, anchor>;
public static final String[] ruleNames = {
"}; separator=", ", wrap, anchor>
};
@Override
public String getGrammarFileName() { return ""; }
@Override
public String[] getTokenNames() { return tokenNames; }
@Override
public String[] getRuleNames() { return ruleNames; }
@Override
public String getSerializedATN() { return _serializedATN; }
public boolean sempred(RuleContext _localctx, int ruleIndex, int predIndex) {
switch (ruleIndex) {
: return _sempred(()_localctx, predIndex);}; separator="\n">
}
return true;
}
}
>>
dumpActions(recog, argFuncs, actionFuncs, sempredFuncs) ::= <<
@Override
public void action(RuleContext _localctx, int ruleIndex, int actionIndex) {
switch (ruleIndex) {
: _action(()_localctx, actionIndex); break;}; separator="\n">
}
}
@Override
public boolean sempred(RuleContext _localctx, int ruleIndex, int predIndex) {
switch (ruleIndex) {
: return _sempred(()_localctx, predIndex);}; separator="\n">
}
return true;
}
>>
parser_ctor(p) ::= <<
public (TokenStream input) {
super(input);
_interp = new ParserATNSimulator(this,_ATN);
}
>>
/* This generates a private method since the actionIndex is generated, making an
* overriding implementation impossible to maintain.
*/
RuleActionFunction(r, actions) ::= <<
private void _action( _localctx, int actionIndex) {
switch (actionIndex) {
: break;}; separator="\n">
}
}
>>
/* This generates a private method since the predIndex is generated, making an
* overriding implementation impossible to maintain.
*/
RuleSempredFunction(r, actions) ::= <<
private boolean _sempred( _localctx, int predIndex) {
switch (predIndex) {
: return ;}; separator="\n">
}
return true;
}
>>
RuleFunction(currentRule,code,locals,ruleCtx,altLabelCtxs,namedActions,finallyAction,postamble,exceptions) ::= <<
}; separator="\n">
@RuleVersion()
}>public final () throws RecognitionException {
_localctx = new (_ctx, getState()}>);
enterRule(_localctx, , RULE_);
try {
int _alt;
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.reportError(this, re);
_errHandler.recover(this, re);
}
finally {
exitRule();
}
return _localctx;
}
>>
LeftFactoredRuleFunction(currentRule,code,locals,namedActions,finallyAction,postamble) ::=
<<
}>private final () throws RecognitionException {
_localctx = new (_ctx, getState()}>);
enterLeftFactoredRule(_localctx, , RULE_);
try {
int _alt;
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.reportError(this, re);
_errHandler.recover(this, re);
}
finally {
exitRule();
}
return _localctx;
}
>>
// This behaves similar to RuleFunction (enterRule is called, and no adjustments
// are made to the parse tree), but since it's still a variant no context class
// needs to be generated.
LeftUnfactoredRuleFunction(currentRule,code,locals,namedActions,finallyAction,postamble) ::=
<<
}>private final () throws RecognitionException {
_localctx = new (_ctx, getState()}>);
enterRule(_localctx, , RULE_);
try {
int _alt;
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.reportError(this, re);
_errHandler.recover(this, re);
}
finally {
exitRule();
}
return _localctx;
}
>>
LeftRecursiveRuleFunction(currentRule,code,locals,ruleCtx,altLabelCtxs,
namedActions,finallyAction,postamble) ::=
<<
}; separator="\n">
@RuleVersion()
}>public final () throws RecognitionException {
return (0}>);
}
private (int _p}>) throws RecognitionException {
ParserRuleContext _parentctx = _ctx;
int _parentState = getState();
_localctx = new (_ctx, _parentState}>);
_prevctx = _localctx;
int _startState = ;
enterRecursionRule(_localctx, , RULE_, _p);
try {
int _alt;
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.reportError(this, re);
_errHandler.recover(this, re);
}
finally {
unrollRecursionContexts(_parentctx);
}
return _localctx;
}
>>
CodeBlockForOuterMostAlt(currentOuterMostAltCodeBlock, locals, preamble, ops) ::= <<
_localctx = new Context(_localctx);
enterOuterAlt(_localctx, );
>>
CodeBlockForAlt(currentAltCodeBlock, locals, preamble, ops) ::= <<
{
}
>>
LL1AltBlock(choice, preamble, alts, error) ::= <<
setState();
= _input.LT(1);
switch (_input.LA(1)) {
break;}; separator="\n">
default:
}
>>
LL1OptionalBlock(choice, alts, error) ::= <<
setState();
switch (_input.LA(1)) {
break;}; separator="\n">
default:
}
>>
LL1OptionalBlockSingleAlt(choice, expr, alts, preamble, error, followExpr) ::= <<
setState();
if () {
}
) ) !>
>>
LL1StarBlock(choice, alts) ::= <<
setState();
_errHandler.sync(this);
:
while (true) {
switch (_input.LA(1)) {
break;}; separator="\n">
break