/******************************************************************************* * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Common Public License v0.5 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/cpl-v05.html * * Contributors: * IBM Corporation - initial API and implementation ******************************************************************************/ package net.sourceforge.phpdt.internal.compiler.ast; import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor; import net.sourceforge.phpdt.internal.compiler.codegen.CodeStream; import net.sourceforge.phpdt.internal.compiler.codegen.Label; import net.sourceforge.phpdt.internal.compiler.impl.Constant; import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope; import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding; public class TrueLiteral extends MagicLiteral { static final char[] source = {'t' , 'r' , 'u' , 'e'}; public TrueLiteral(int s , int e) { super(s,e); } public void computeConstant() { constant = Constant.fromValue(true);} /** * Code generation for the true literal * * @param currentScope org.eclipse.jdt.internal.compiler.lookup.BlockScope * @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream * @param valueRequired boolean */ public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) { int pc = codeStream.position; if (valueRequired) codeStream.iconst_1(); codeStream.recordPositionsFrom(pc, this.sourceStart); } public void generateOptimizedBoolean(BlockScope currentScope, CodeStream codeStream, Label trueLabel, Label falseLabel, boolean valueRequired) { // trueLabel being not nil means that we will not fall through into the TRUE case int pc = codeStream.position; // constant == true if (valueRequired) { if (falseLabel == null) { // implicit falling through the FALSE case if (trueLabel != null) { codeStream.goto_(trueLabel); } } } codeStream.recordPositionsFrom(pc, this.sourceStart); } public TypeBinding literalType(BlockScope scope) { return BooleanBinding; } /** * */ public char[] source() { return source; } public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) { visitor.visit(this, scope); visitor.endVisit(this, scope); } }