| /******************************************************************************* |
| * 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.core.dom; |
| |
| import org.eclipse.jdt.core.util.IModifierConstants; |
| import org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration; |
| import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration; |
| import org.eclipse.jdt.internal.compiler.impl.Constant; |
| import org.eclipse.jdt.internal.compiler.impl.ReferenceContext; |
| import org.eclipse.jdt.internal.compiler.lookup.*; |
| import org.eclipse.jdt.internal.compiler.lookup.BlockScope; |
| import org.eclipse.jdt.internal.compiler.lookup.FieldBinding; |
| import org.eclipse.jdt.internal.compiler.lookup.LocalVariableBinding; |
| |
| /** |
| * Internal implementation of variable bindings. |
| */ |
| class VariableBinding implements IVariableBinding { |
| |
| private org.eclipse.jdt.internal.compiler.lookup.VariableBinding binding; |
| private BindingResolver resolver; |
| private String name; |
| private ITypeBinding declaringClass; |
| private ITypeBinding type; |
| private String key; |
| |
| VariableBinding(BindingResolver resolver, org.eclipse.jdt.internal.compiler.lookup.VariableBinding binding) { |
| this.resolver = resolver; |
| this.binding = binding; |
| } |
| |
| /* |
| * @see IVariableBinding#isField() |
| */ |
| public boolean isField() { |
| return this.binding instanceof FieldBinding; |
| } |
| |
| /* |
| * @see IBinding#getName() |
| */ |
| public String getName() { |
| if (this.name == null) { |
| this.name = new String(this.binding.name); |
| } |
| return this.name; |
| } |
| |
| /* |
| * @see IVariableBinding#getDeclaringClass() |
| */ |
| public ITypeBinding getDeclaringClass() { |
| if (isField()) { |
| if (this.declaringClass == null) { |
| FieldBinding fieldBinding = (FieldBinding) this.binding; |
| this.declaringClass = this.resolver.getTypeBinding(fieldBinding.declaringClass); |
| } |
| return this.declaringClass; |
| } else { |
| return null; |
| } |
| } |
| |
| /* |
| * @see IVariableBinding#getType() |
| */ |
| public ITypeBinding getType() { |
| if (type == null) { |
| type = this.resolver.getTypeBinding(this.binding.type); |
| } |
| return type; |
| } |
| |
| /* |
| * @see IBinding#getKind() |
| */ |
| public int getKind() { |
| return IBinding.VARIABLE; |
| } |
| |
| /* |
| * @see IBinding#getModifiers() |
| */ |
| public int getModifiers() { |
| if (isField()) { |
| return ((FieldBinding) this.binding).getAccessFlags(); |
| } |
| if (binding.isFinal()) { |
| return IModifierConstants.ACC_FINAL; |
| } |
| return 0; |
| } |
| |
| /* |
| * @see IBinding#isDeprecated() |
| */ |
| public boolean isDeprecated() { |
| if (isField()) { |
| return ((FieldBinding) this.binding).isDeprecated(); |
| } |
| return false; |
| } |
| |
| /** |
| * @see IBinding#isSynthetic() |
| */ |
| public boolean isSynthetic() { |
| if (isField()) { |
| return ((FieldBinding) this.binding).isSynthetic(); |
| } |
| return false; |
| } |
| |
| /* |
| * @see IBinding#getKey() |
| */ |
| public String getKey() { |
| if (this.key == null) { |
| if (isField()) { |
| StringBuffer buffer = new StringBuffer(); |
| if (this.getDeclaringClass() != null) { |
| buffer.append(this.getDeclaringClass().getKey()); |
| buffer.append('/'); |
| } |
| buffer.append(this.getName()); |
| this.key = buffer.toString(); |
| } else { |
| StringBuffer buffer = new StringBuffer(); |
| |
| // declaring method or type |
| LocalVariableBinding localVarBinding = (LocalVariableBinding) this.binding; |
| BlockScope scope = localVarBinding.declaringScope; |
| MethodScope methodScope = scope instanceof MethodScope ? (MethodScope) scope : scope.enclosingMethodScope(); |
| ReferenceContext referenceContext = methodScope.referenceContext; |
| if (referenceContext instanceof AbstractMethodDeclaration) { |
| org.eclipse.jdt.internal.compiler.lookup.MethodBinding internalBinding = ((AbstractMethodDeclaration) referenceContext).binding; |
| IMethodBinding methodBinding = this.resolver.getMethodBinding(internalBinding); |
| if (methodBinding != null) { |
| buffer.append(methodBinding.getKey()); |
| } |
| } else if (referenceContext instanceof TypeDeclaration) { |
| org.eclipse.jdt.internal.compiler.lookup.TypeBinding internalBinding = ((TypeDeclaration) referenceContext).binding; |
| ITypeBinding typeBinding = this.resolver.getTypeBinding(internalBinding); |
| if (typeBinding != null) { |
| buffer.append(typeBinding.getKey()); |
| } |
| } |
| |
| // scope index |
| getKey(scope, buffer); |
| |
| // variable name |
| buffer.append('/'); |
| buffer.append(getName()); |
| |
| this.key = buffer.toString(); |
| } |
| } |
| return this.key; |
| } |
| |
| private void getKey(BlockScope scope, StringBuffer buffer) { |
| int scopeIndex = scope.scopeIndex(); |
| if (scopeIndex != -1) { |
| getKey((BlockScope)scope.parent, buffer); |
| buffer.append('/'); |
| buffer.append(scopeIndex); |
| } |
| } |
| |
| /* |
| * @see IVariableBinding#getVariableId() |
| */ |
| public int getVariableId() { |
| return this.binding.id; |
| } |
| |
| /* (non-Javadoc) |
| * @see IVariableBinding#getConstantValue() |
| * @since 3.0 |
| */ |
| public Object getConstantValue() { |
| if (!this.binding.isConstantValue() || this.binding.constant == null) { |
| return null; |
| } |
| Constant c = this.binding.constant; |
| switch (c.typeID()) { |
| case TypeIds.T_boolean: |
| return Boolean.valueOf(c.booleanValue()); |
| case TypeIds.T_byte: |
| return new Byte(c.byteValue()); |
| case TypeIds.T_char: |
| return new Character(c.charValue()); |
| case TypeIds.T_double: |
| return new Double(c.doubleValue()); |
| case TypeIds.T_float: |
| return new Float(c.floatValue()); |
| case TypeIds.T_int: |
| return new Integer(c.intValue()); |
| case TypeIds.T_long: |
| return new Long(c.longValue()); |
| case TypeIds.T_short: |
| return new Short(c.shortValue()); |
| case TypeIds.T_String: |
| return c.stringValue(); |
| } |
| return null; |
| } |
| |
| /* |
| * For debugging purpose only. |
| * @see java.lang.Object#toString() |
| */ |
| public String toString() { |
| return this.binding.toString(); |
| } |
| } |