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

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.compiler.ast;
  12
  13 import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
  14 import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
  15 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  16 import net.sourceforge.phpdt.internal.compiler.lookup.FieldBinding;
  17
  18 public abstract class Reference extends Expression {
  19         /**
  20          * BaseLevelReference constructor comment.
  21          */
  22         public Reference() {
  23                 super();
  24         }
  25
  26         public abstract FlowInfo analyseAssignment(BlockScope currentScope,
  27                         FlowContext flowContext, FlowInfo flowInfo, Assignment assignment,
  28                         boolean isCompound);
  29
  30         public FlowInfo analyseCode(BlockScope currentScope,
  31                         FlowContext flowContext, FlowInfo flowInfo) {
  32                 return flowInfo;
  33         }
  34
  35         public FieldBinding fieldBinding() {
  36                 // this method should be sent one FIELD-tagged references
  37                 // (ref.bits & BindingIds.FIELD != 0)()
  38                 return null;
  39         }
  40         // public void fieldStore(CodeStream codeStream, FieldBinding fieldBinding,
  41         // MethodBinding syntheticWriteAccessor, boolean valueRequired) {
  42         //
  43         // if (fieldBinding.isStatic()) {
  44         // if (valueRequired) {
  45         // if ((fieldBinding.type == LongBinding) || (fieldBinding.type ==
  46         // DoubleBinding)) {
  47         // codeStream.dup2();
  48         // } else {
  49         // codeStream.dup();
  50         // }
  51         // }
  52         // if (syntheticWriteAccessor == null) {
  53         // codeStream.putstatic(fieldBinding);
  54         // } else {
  55         // codeStream.invokestatic(syntheticWriteAccessor);
  56         // }
  57         // } else { // Stack: [owner][new field value] ---> [new field
  58         // value][owner][new field value]
  59         // if (valueRequired) {
  60         // if ((fieldBinding.type == LongBinding) || (fieldBinding.type ==
  61         // DoubleBinding)) {
  62         // codeStream.dup2_x1();
  63         // } else {
  64         // codeStream.dup_x1();
  65         // }
  66         // }
  67         // if (syntheticWriteAccessor == null) {
  68         // codeStream.putfield(fieldBinding);
  69         // } else {
  70         // codeStream.invokestatic(syntheticWriteAccessor);
  71         // }
  72         // }
  73         // }
  74         // public abstract void generateAssignment(BlockScope currentScope,
  75         // CodeStream codeStream, Assignment assignment, boolean valueRequired);
  76         //
  77         // public abstract void generateCompoundAssignment(BlockScope currentScope,
  78         // CodeStream codeStream, Expression expression, int operator, int
  79         // assignmentImplicitConversion, boolean valueRequired);
  80         //
  81         // public abstract void generatePostIncrement(BlockScope currentScope,
  82         // CodeStream codeStream, CompoundAssignment postIncrement, boolean
  83         // valueRequired);
  84
  85 }