--- /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 CharLiteral extends NumberLiteral {
+ char value;
+public CharLiteral(char[] token, int s, int e) {
+ super(token, s, e);
+ computeValue();
+}
+public void computeConstant() {
+ //The source is a char[3] first and last char are '
+ //This is true for both regular char AND unicode char
+ //BUT not for escape char like '\b' which are char[4]....
+
+ constant = Constant.fromValue(value);
+}
+private void computeValue() {
+ //The source is a char[3] first and last char are '
+ //This is true for both regular char AND unicode char
+ //BUT not for escape char like '\b' which are char[4]....
+
+ if ((value = source[1]) != '\\')
+ return;
+ char digit;
+ switch (digit = source[2]) {
+ case 'b' :
+ value = '\b';
+ break;
+ case 't' :
+ value = '\t';
+ break;
+ case 'n' :
+ value = '\n';
+ break;
+ case 'f' :
+ value = '\f';
+ break;
+ case 'r' :
+ value = '\r';
+ break;
+ case '\"' :
+ value = '\"';
+ break;
+ case '\'' :
+ value = '\'';
+ break;
+ case '\\' :
+ value = '\\';
+ break;
+ default : //octal (well-formed: ended by a ' )
+ int number = Character.getNumericValue(digit);
+ if ((digit = source[3]) != '\'')
+ number = (number * 8) + Character.getNumericValue(digit);
+ else {
+ constant = Constant.fromValue(value = (char) number);
+ break;
+ }
+ if ((digit = source[4]) != '\'')
+ number = (number * 8) + Character.getNumericValue(digit);
+ value = (char) number;
+ break;
+ }
+}
+/**
+ * CharLiteral code generation
+ *
+ * @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_char)
+ codeStream.generateInlinedValue(value);
+ else
+ codeStream.generateConstant(constant, implicitConversion);
+ codeStream.recordPositionsFrom(pc, this.sourceStart);
+}
+public TypeBinding literalType(BlockScope scope) {
+ return CharBinding;
+}
+public void traverse(ASTVisitor visitor, BlockScope blockScope) {
+ visitor.visit(this, blockScope);
+ visitor.endVisit(this, blockScope);
+}
+}