X-Git-Url: http://git.phpeclipse.com diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/FieldBinding.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/FieldBinding.java new file mode 100644 index 0000000..1884c48 --- /dev/null +++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/FieldBinding.java @@ -0,0 +1,211 @@ +/******************************************************************************* + * Copyright (c) 2000, 2003 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 net.sourceforge.phpdt.internal.compiler.lookup; + +import net.sourceforge.phpdt.internal.compiler.impl.Constant; +import net.sourceforge.phpeclipse.internal.compiler.ast.FieldDeclaration; + + + +public class FieldBinding extends VariableBinding { + public ReferenceBinding declaringClass; +protected FieldBinding() { +} +public FieldBinding(char[] name, TypeBinding type, int modifiers, ReferenceBinding declaringClass, Constant constant) { + this.modifiers = modifiers; + this.type = type; + this.name = name; + this.declaringClass = declaringClass; + this.constant = constant; + + // propagate the deprecated modifier + if (this.declaringClass != null) + if (this.declaringClass.isViewedAsDeprecated() && !isDeprecated()) + this.modifiers |= AccDeprecatedImplicitly; +} +public FieldBinding(FieldDeclaration field, TypeBinding type, ReferenceBinding declaringClass) { + this(field.name, type, field.modifiers, declaringClass, null); + + field.binding = this; +} +// special API used to change field declaring class for runtime visibility check +public FieldBinding(FieldBinding initialFieldBinding, ReferenceBinding declaringClass) { + this.modifiers = initialFieldBinding.modifiers; + this.type = initialFieldBinding.type; + this.name = initialFieldBinding.name; + this.declaringClass = declaringClass; + this.constant = initialFieldBinding.constant; + this.id = initialFieldBinding.id; +} +/* API +* Answer the receiver's binding type from Binding.BindingID. +*/ + +public final int bindingType() { + return FIELD; +} +/* Answer true if the receiver is visible to the type provided by the scope. +* InvocationSite implements isSuperAccess() to provide additional information +* if the receiver is protected. +* +* NOTE: Cannot invoke this method with a compilation unit scope. +*/ + +public final boolean canBeSeenBy(TypeBinding receiverType, InvocationSite invocationSite, Scope scope) { + if (isPublic()) return true; + + SourceTypeBinding invocationType = scope.enclosingSourceType(); + if (invocationType == declaringClass && invocationType == receiverType) return true; + + if (isProtected()) { + // answer true if the invocationType is the declaringClass or they are in the same package + // OR the invocationType is a subclass of the declaringClass + // AND the receiverType is the invocationType or its subclass + // OR the method is a static method accessed directly through a type + // OR previous assertions are true for one of the enclosing type + if (invocationType == declaringClass) return true; + if (invocationType.fPackage == declaringClass.fPackage) return true; + + ReferenceBinding currentType = invocationType; + int depth = 0; + do { + if (declaringClass.isSuperclassOf(currentType)) { + if (invocationSite.isSuperAccess()){ + return true; + } + // receiverType can be an array binding in one case... see if you can change it + if (receiverType instanceof ArrayBinding){ + return false; + } + if (isStatic()){ + return true; // see 1FMEPDL - return invocationSite.isTypeAccess(); + } + if (currentType == receiverType || currentType.isSuperclassOf((ReferenceBinding) receiverType)){ + if (depth > 0) invocationSite.setDepth(depth); + return true; + } + } + depth++; + currentType = currentType.enclosingType(); + } while (currentType != null); + return false; + } + + if (isPrivate()) { + // answer true if the receiverType is the declaringClass + // AND the invocationType and the declaringClass have a common enclosingType + if (receiverType != declaringClass) return false; + + if (invocationType != declaringClass) { + ReferenceBinding outerInvocationType = invocationType; + ReferenceBinding temp = outerInvocationType.enclosingType(); + while (temp != null) { + outerInvocationType = temp; + temp = temp.enclosingType(); + } + + ReferenceBinding outerDeclaringClass = declaringClass; + temp = outerDeclaringClass.enclosingType(); + while (temp != null) { + outerDeclaringClass = temp; + temp = temp.enclosingType(); + } + if (outerInvocationType != outerDeclaringClass) return false; + } + return true; + } + + // isDefault() + if (invocationType.fPackage != declaringClass.fPackage) return false; + + // receiverType can be an array binding in one case... see if you can change it + if (receiverType instanceof ArrayBinding) + return false; + ReferenceBinding type = (ReferenceBinding) receiverType; + PackageBinding declaringPackage = declaringClass.fPackage; + do { + if (declaringClass == type) return true; + if (declaringPackage != type.fPackage) return false; + } while ((type = type.superclass()) != null); + return false; +} +public final int getAccessFlags() { + return modifiers & AccJustFlag; +} + +/* Answer true if the receiver has default visibility +*/ + +public final boolean isDefault() { + return !isPublic() && !isProtected() && !isPrivate(); +} +/* Answer true if the receiver is a deprecated field +*/ + +public final boolean isDeprecated() { + return (modifiers & AccDeprecated) != 0; +} +/* Answer true if the receiver has private visibility +*/ + +public final boolean isPrivate() { + return (modifiers & AccPrivate) != 0; +} +/* Answer true if the receiver has private visibility and is used locally +*/ + +public final boolean isPrivateUsed() { + return (modifiers & AccPrivateUsed) != 0; +} +/* Answer true if the receiver has protected visibility +*/ + +public final boolean isProtected() { + return (modifiers & AccProtected) != 0; +} +/* Answer true if the receiver has public visibility +*/ + +public final boolean isPublic() { + return (modifiers & AccPublic) != 0; +} +/* Answer true if the receiver is a static field +*/ + +public final boolean isStatic() { + return (modifiers & AccStatic) != 0; +} +/* Answer true if the receiver is not defined in the source of the declaringClass +*/ + +//public final boolean isSynthetic() { +// return (modifiers & AccSynthetic) != 0; +//} +/* Answer true if the receiver is a transient field +*/ + +//public final boolean isTransient() { +// return (modifiers & AccTransient) != 0; +//} +/* Answer true if the receiver's declaring type is deprecated (or any of its enclosing types) +*/ + +public final boolean isViewedAsDeprecated() { + return (modifiers & AccDeprecated) != 0 || + (modifiers & AccDeprecatedImplicitly) != 0; +} +/* Answer true if the receiver is a volatile field +*/ + +//public final boolean isVolatile() { +// return (modifiers & AccVolatile) != 0; +//} +}