first scanner /parser copied from the jdt java version

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / ast / Reference.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Reference.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Reference.java
new file mode 100644 (file)
index 0000000..dc7c3a5
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Reference.java
@@ -0,0 +1,76 @@
+/*******************************************************************************
+ * 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.codegen.*;
+import net.sourceforge.phpdt.internal.compiler.flow.*;
+import net.sourceforge.phpdt.internal.compiler.lookup.*;
+import net.sourceforge.phpdt.internal.compiler.problem.*;
+import net.sourceforge.phpdt.internal.compiler.util.Util;
+
+public abstract class Reference extends Expression  {
+/**
+ * BaseLevelReference constructor comment.
+ */
+public Reference() {
+       super();
+}
+public FlowInfo analyseAssignment(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo, Assignment assignment, boolean isCompound) {
+       throw new ShouldNotImplement(Util.bind("ast.variableShouldProvide")); //$NON-NLS-1$
+}
+public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
+       return flowInfo;
+}
+public FieldBinding fieldBinding() {
+       //this method should be sent one FIELD-tagged references
+       //  (ref.bits & BindingIds.FIELD != 0)()
+       return null ;
+}
+public void fieldStore(CodeStream codeStream, FieldBinding fieldBinding, MethodBinding syntheticWriteAccessor, boolean valueRequired) {
+
+       if (fieldBinding.isStatic()) {
+               if (valueRequired) {
+                       if ((fieldBinding.type == LongBinding) || (fieldBinding.type == DoubleBinding)) {
+                               codeStream.dup2();
+                       } else {
+                               codeStream.dup();
+                       }
+               }
+               if (syntheticWriteAccessor == null) {
+                       codeStream.putstatic(fieldBinding);
+               } else {
+                       codeStream.invokestatic(syntheticWriteAccessor);
+               }
+       } else { // Stack:  [owner][new field value]  ---> [new field value][owner][new field value]
+               if (valueRequired) {
+                       if ((fieldBinding.type == LongBinding) || (fieldBinding.type == DoubleBinding)) {
+                               codeStream.dup2_x1();
+                       } else {
+                               codeStream.dup_x1();
+                       }
+               }
+               if (syntheticWriteAccessor == null) {
+                       codeStream.putfield(fieldBinding);
+               } else {
+                       codeStream.invokestatic(syntheticWriteAccessor);
+               }
+       }
+}
+public void generateAssignment(BlockScope currentScope, CodeStream codeStream, Assignment assignment, boolean valueRequired) {
+       throw new ShouldNotImplement(Util.bind("ast.compoundPreShouldProvide")); //$NON-NLS-1$
+}
+public void generateCompoundAssignment(BlockScope currentScope, CodeStream codeStream, Expression expression, int operator, int assignmentImplicitConversion, boolean valueRequired) {
+       throw new ShouldNotImplement(Util.bind("ast.compoundVariableShouldProvide")); //$NON-NLS-1$
+}
+public void generatePostIncrement(BlockScope currentScope, CodeStream codeStream, CompoundAssignment postIncrement, boolean valueRequired) {
+       throw new ShouldNotImplement(Util.bind("ast.postIncrShouldProvide")); //$NON-NLS-1$
+}
+}