/******************************************************************************* | |
* Copyright (c) 2000, 2004 IBM Corporation and others. | |
* All rights reserved. This program and the accompanying materials | |
* are made available under the terms of the Common Public License v1.0 | |
* which accompanies this distribution, and is available at | |
* http://www.eclipse.org/legal/cpl-v10.html | |
* | |
* Contributors: | |
* IBM Corporation - initial API and implementation | |
*******************************************************************************/ | |
package org.eclipse.wst.jsdt.internal.compiler.ast; | |
import org.eclipse.wst.jsdt.internal.compiler.ASTVisitor; | |
import org.eclipse.wst.jsdt.internal.compiler.codegen.CodeStream; | |
import org.eclipse.wst.jsdt.internal.compiler.impl.Constant; | |
import org.eclipse.wst.jsdt.internal.compiler.lookup.BlockScope; | |
import org.eclipse.wst.jsdt.internal.compiler.lookup.TypeBinding; | |
public class StringLiteral extends Literal { | |
char[] source; | |
public StringLiteral(char[] token, int s, int e) { | |
this(s,e); | |
source = token; | |
} | |
public StringLiteral(int s, int e) { | |
super(s,e); | |
} | |
public void computeConstant() { | |
constant = Constant.fromValue(String.valueOf(source)); | |
} | |
public ExtendedStringLiteral extendWith(CharLiteral lit){ | |
//add the lit source to mine, just as if it was mine | |
return new ExtendedStringLiteral(this,lit); | |
} | |
public ExtendedStringLiteral extendWith(StringLiteral lit){ | |
//add the lit source to mine, just as if it was mine | |
return new ExtendedStringLiteral(this,lit); | |
} | |
/** | |
* Add the lit source to mine, just as if it was mine | |
*/ | |
public StringLiteralConcatenation extendsWith(StringLiteral lit) { | |
return new StringLiteralConcatenation(this, lit); | |
} | |
/** | |
* Code generation for string literal | |
*/ | |
public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) { | |
int pc = codeStream.position; | |
if (valueRequired) | |
codeStream.ldc(constant.stringValue()); | |
codeStream.recordPositionsFrom(pc, this.sourceStart); | |
} | |
public TypeBinding literalType(BlockScope scope) { | |
return scope.getJavaLangString(); | |
} | |
public StringBuffer printExpression(int indent, StringBuffer output) { | |
// handle some special char..... | |
output.append('\"'); | |
for (int i = 0; i < source.length; i++) { | |
switch (source[i]) { | |
case '\b' : | |
output.append("\\b"); //$NON-NLS-1$ | |
break; | |
case '\t' : | |
output.append("\\t"); //$NON-NLS-1$ | |
break; | |
case '\n' : | |
output.append("\\n"); //$NON-NLS-1$ | |
break; | |
case '\f' : | |
output.append("\\f"); //$NON-NLS-1$ | |
break; | |
case '\r' : | |
output.append("\\r"); //$NON-NLS-1$ | |
break; | |
case '\"' : | |
output.append("\\\""); //$NON-NLS-1$ | |
break; | |
case '\'' : | |
output.append("\\'"); //$NON-NLS-1$ | |
break; | |
case '\\' : //take care not to display the escape as a potential real char | |
output.append("\\\\"); //$NON-NLS-1$ | |
break; | |
default : | |
output.append(source[i]); | |
} | |
} | |
output.append('\"'); | |
return output; | |
} | |
public char[] source() { | |
return source; | |
} | |
public void traverse(ASTVisitor visitor, BlockScope scope) { | |
visitor.visit(this, scope); | |
visitor.endVisit(this, scope); | |
} | |
} |