1 /*******************************************************************************
2 * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Common Public License v0.5
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/cpl-v05.html
9 * IBM Corporation - initial API and implementation
10 ******************************************************************************/
11 package net.sourceforge.phpdt.internal.compiler.lookup;
13 import net.sourceforge.phpdt.internal.compiler.ast.FieldDeclaration;
14 import net.sourceforge.phpdt.internal.compiler.impl.Constant;
16 public class FieldBinding extends VariableBinding {
17 public ReferenceBinding declaringClass;
18 protected FieldBinding() {
20 public FieldBinding(char[] name, TypeBinding type, int modifiers, ReferenceBinding declaringClass, Constant constant) {
21 this.modifiers = modifiers;
24 this.declaringClass = declaringClass;
25 this.constant = constant;
27 // propagate the deprecated modifier
28 if (this.declaringClass != null)
29 if (this.declaringClass.isViewedAsDeprecated() && !isDeprecated())
30 this.modifiers |= AccDeprecatedImplicitly;
32 public FieldBinding(FieldDeclaration field, TypeBinding type, ReferenceBinding declaringClass) {
33 this(field.name, type, field.modifiers, declaringClass, null);
37 // special API used to change field declaring class for runtime visibility check
38 public FieldBinding(FieldBinding initialFieldBinding, ReferenceBinding declaringClass) {
39 this.modifiers = initialFieldBinding.modifiers;
40 this.type = initialFieldBinding.type;
41 this.name = initialFieldBinding.name;
42 this.declaringClass = declaringClass;
43 this.constant = initialFieldBinding.constant;
44 this.id = initialFieldBinding.id;
47 * Answer the receiver's binding type from Binding.BindingID.
50 public final int bindingType() {
53 /* Answer true if the receiver is visible to the type provided by the scope.
54 * InvocationSite implements isSuperAccess() to provide additional information
55 * if the receiver is protected.
57 * NOTE: Cannot invoke this method with a compilation unit scope.
60 public final boolean canBeSeenBy(TypeBinding receiverType, InvocationSite invocationSite, Scope scope) {
61 if (isPublic()) return true;
63 SourceTypeBinding invocationType = scope.enclosingSourceType();
64 if (invocationType == declaringClass && invocationType == receiverType) return true;
67 // answer true if the invocationType is the declaringClass or they are in the same package
68 // OR the invocationType is a subclass of the declaringClass
69 // AND the receiverType is the invocationType or its subclass
70 // OR the method is a static method accessed directly through a type
71 // OR previous assertions are true for one of the enclosing type
72 if (invocationType == declaringClass) return true;
73 if (invocationType.fPackage == declaringClass.fPackage) return true;
75 ReferenceBinding currentType = invocationType;
78 if (declaringClass.isSuperclassOf(currentType)) {
79 if (invocationSite.isSuperAccess()){
82 // receiverType can be an array binding in one case... see if you can change it
83 if (receiverType instanceof ArrayBinding){
87 return true; // see 1FMEPDL - return invocationSite.isTypeAccess();
89 if (currentType == receiverType || currentType.isSuperclassOf((ReferenceBinding) receiverType)){
90 if (depth > 0) invocationSite.setDepth(depth);
95 currentType = currentType.enclosingType();
96 } while (currentType != null);
101 // answer true if the receiverType is the declaringClass
102 // AND the invocationType and the declaringClass have a common enclosingType
103 if (receiverType != declaringClass) return false;
105 if (invocationType != declaringClass) {
106 ReferenceBinding outerInvocationType = invocationType;
107 ReferenceBinding temp = outerInvocationType.enclosingType();
108 while (temp != null) {
109 outerInvocationType = temp;
110 temp = temp.enclosingType();
113 ReferenceBinding outerDeclaringClass = declaringClass;
114 temp = outerDeclaringClass.enclosingType();
115 while (temp != null) {
116 outerDeclaringClass = temp;
117 temp = temp.enclosingType();
119 if (outerInvocationType != outerDeclaringClass) return false;
125 if (invocationType.fPackage != declaringClass.fPackage) return false;
127 // receiverType can be an array binding in one case... see if you can change it
128 if (receiverType instanceof ArrayBinding)
130 ReferenceBinding type = (ReferenceBinding) receiverType;
131 PackageBinding declaringPackage = declaringClass.fPackage;
133 if (declaringClass == type) return true;
134 if (declaringPackage != type.fPackage) return false;
135 } while ((type = type.superclass()) != null);
138 public final int getAccessFlags() {
139 return modifiers & AccJustFlag;
141 /* Answer true if the receiver has default visibility
144 public final boolean isDefault() {
145 return !isPublic() && !isProtected() && !isPrivate();
147 /* Answer true if the receiver is a deprecated field
150 public final boolean isDeprecated() {
151 return (modifiers & AccDeprecated) != 0;
153 /* Answer true if the receiver has private visibility
156 public final boolean isPrivate() {
157 return (modifiers & AccPrivate) != 0;
159 /* Answer true if the receiver has protected visibility
162 public final boolean isProtected() {
163 return (modifiers & AccProtected) != 0;
165 /* Answer true if the receiver has public visibility
168 public final boolean isPublic() {
169 return (modifiers & AccPublic) != 0;
171 /* Answer true if the receiver is a static field
174 public final boolean isStatic() {
175 return (modifiers & AccStatic) != 0;
177 /* Answer true if the receiver is not defined in the source of the declaringClass
180 public final boolean isSynthetic() {
181 return (modifiers & AccSynthetic) != 0;
183 /* Answer true if the receiver is a transient field
186 public final boolean isTransient() {
187 return (modifiers & AccTransient) != 0;
189 /* Answer true if the receiver's declaring type is deprecated (or any of its enclosing types)
192 public final boolean isViewedAsDeprecated() {
193 return (modifiers & AccDeprecated) != 0 ||
194 (modifiers & AccDeprecatedImplicitly) != 0;
196 /* Answer true if the receiver is a volatile field
199 public final boolean isVolatile() {
200 return (modifiers & AccVolatile) != 0;