+++ /dev/null
-/*******************************************************************************
- * 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.jdt.internal.compiler.ast;
-
-import org.eclipse.jdt.internal.compiler.ASTVisitor;
-import org.eclipse.jdt.internal.compiler.impl.*;
-import org.eclipse.jdt.internal.compiler.codegen.*;
-import org.eclipse.jdt.internal.compiler.lookup.*;
-
-public class DoubleLiteral extends NumberLiteral {
- double value;
-public DoubleLiteral(char[] token, int s, int e) {
- super(token, s,e);
-}
-public void computeConstant() {
-
- //the source is correctly formated so the exception should never occurs
-
- Double computedValue;
- try { computedValue = Double.valueOf(String.valueOf(source));}
- catch(NumberFormatException e){return ;} //how can it happen ????
-
- if (computedValue.doubleValue() > Double.MAX_VALUE) return ; //may be Infinity
- if (computedValue.doubleValue() < Double.MIN_VALUE)
- { //only a true 0 can be made of zeros
- //2.00000000000000000e-324 is illegal ....
- label :
- for (int i=0;i<source.length;i++)
- { //it is welled formated so just test against '0' and potential . D d
- switch (source[i]){
- case '0' :
- case '.' :
- case 'd' :
- case 'D' : break ;
- case 'e' :
- case 'E' : break label ; //exposant are valid....!
- default : return;}}} //error
-
- constant = Constant.fromValue(value = computedValue.doubleValue());}
-/**
- * Code generation for the double literak
- *
- * @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)
- if ((implicitConversion >> 4) == T_double)
- codeStream.generateInlinedValue(value);
- else
- codeStream.generateConstant(constant, implicitConversion);
- codeStream.recordPositionsFrom(pc, this.sourceStart);
-}
-public TypeBinding literalType(BlockScope scope) {
- return DoubleBinding;
-}
-public void traverse(ASTVisitor visitor, BlockScope blockScope) {
- visitor.visit(this, blockScope);
- visitor.endVisit(this, blockScope);
-}
-}