totally new file layout

[org.ibex.tool.git] / repo / org.ibex.tool / src / org / eclipse / jdt / internal / compiler / ast / NullLiteral.java

diff --git a/repo/org.ibex.tool/src/org/eclipse/jdt/internal/compiler/ast/NullLiteral.java b/repo/org.ibex.tool/src/org/eclipse/jdt/internal/compiler/ast/NullLiteral.java
new file mode 100644 (file)
index 0000000..d79b252
--- /dev/null
+++ b/repo/org.ibex.tool/src/org/eclipse/jdt/internal/compiler/ast/NullLiteral.java
@@ -0,0 +1,59 @@
+/*******************************************************************************
+ * 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.codegen.*;
+import org.eclipse.jdt.internal.compiler.lookup.*;
+
+public class NullLiteral extends MagicLiteral {
+
+       static final char[] source = {'n' , 'u' , 'l' , 'l'};
+
+       public NullLiteral(int s , int e) {
+
+               super(s,e);
+       }
+
+       public void computeConstant() {
+       
+               constant = NotAConstant; 
+       }
+
+       /**
+        * Code generation for the null 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.aconst_null();
+               codeStream.recordPositionsFrom(pc, this.sourceStart);
+       }
+       public TypeBinding literalType(BlockScope scope) {
+               return NullBinding;
+       }
+
+       /**
+        * 
+        */
+       public char[] source() {
+               return source;
+       }
+
+       public void traverse(ASTVisitor visitor, BlockScope scope) {
+               visitor.visit(this, scope);
+               visitor.endVisit(this, scope);
+       }
+}