| /******************************************************************************* |
| * Copyright (c) 2004, 2013 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.aspectj.org.eclipse.jdt.core.dom; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Single member annotation node (added in JLS3 API). The single member annotation |
| * "@foo(bar)" is equivalent to the normal annotation "@foo(value=bar)". |
| * <p> |
| * <pre> |
| * SingleMemberAnnotation: |
| * <b>@</b> TypeName <b>(</b> Expression <b>)</b> |
| * </pre> |
| * Within annotations, only certain kinds of expressions are meaningful, |
| * including other annotations. |
| * </p> |
| * |
| * @since 3.1 |
| * @noinstantiate This class is not intended to be instantiated by clients. |
| */ |
| @SuppressWarnings("rawtypes") |
| public final class SingleMemberAnnotation extends Annotation { |
| |
| /** |
| * The "typeName" structural property of this node type (child type: {@link Name}). |
| */ |
| public static final ChildPropertyDescriptor TYPE_NAME_PROPERTY = |
| internalTypeNamePropertyFactory(SingleMemberAnnotation.class); |
| |
| /** |
| * The "value" structural property of this node type (child type: {@link Expression}). |
| */ |
| public static final ChildPropertyDescriptor VALUE_PROPERTY = |
| new ChildPropertyDescriptor(SingleMemberAnnotation.class, "value", Expression.class, MANDATORY, CYCLE_RISK); //$NON-NLS-1$ |
| |
| /** |
| * A list of property descriptors (element type: |
| * {@link StructuralPropertyDescriptor}), |
| * or null if uninitialized. |
| */ |
| private static final List PROPERTY_DESCRIPTORS; |
| |
| static { |
| List propertyList = new ArrayList(3); |
| createPropertyList(SingleMemberAnnotation.class, propertyList); |
| addProperty(TYPE_NAME_PROPERTY, propertyList); |
| addProperty(VALUE_PROPERTY, propertyList); |
| PROPERTY_DESCRIPTORS = reapPropertyList(propertyList); |
| } |
| |
| /** |
| * Returns a list of structural property descriptors for this node type. |
| * Clients must not modify the result. |
| * |
| * @param apiLevel the API level; one of the AST.JLS* constants |
| * @return a list of property descriptors (element type: |
| * {@link StructuralPropertyDescriptor}) |
| */ |
| public static List propertyDescriptors(int apiLevel) { |
| return PROPERTY_DESCRIPTORS; |
| } |
| |
| /** |
| * The value; lazily initialized; defaults to a unspecified, but legal, |
| * expression. |
| */ |
| private Expression value = null; |
| |
| /** |
| * Creates a new unparented normal annotation node owned |
| * by the given AST. By default, the annotation has an |
| * unspecified type name and an unspecified value. |
| * <p> |
| * N.B. This constructor is package-private. |
| * </p> |
| * |
| * @param ast the AST that is to own this node |
| */ |
| SingleMemberAnnotation(AST ast) { |
| super(ast); |
| unsupportedIn2(); |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| final List internalStructuralPropertiesForType(int apiLevel) { |
| return propertyDescriptors(apiLevel); |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) { |
| if (property == TYPE_NAME_PROPERTY) { |
| if (get) { |
| return getTypeName(); |
| } else { |
| setTypeName((Name) child); |
| return null; |
| } |
| } |
| if (property == VALUE_PROPERTY) { |
| if (get) { |
| return getValue(); |
| } else { |
| setValue((Expression) child); |
| return null; |
| } |
| } |
| // allow default implementation to flag the error |
| return super.internalGetSetChildProperty(property, get, child); |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on BodyDeclaration. |
| */ |
| final ChildPropertyDescriptor internalTypeNameProperty() { |
| return TYPE_NAME_PROPERTY; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| final int getNodeType0() { |
| return SINGLE_MEMBER_ANNOTATION; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| ASTNode clone0(AST target) { |
| SingleMemberAnnotation result = new SingleMemberAnnotation(target); |
| result.setSourceRange(getStartPosition(), getLength()); |
| result.setTypeName((Name) ASTNode.copySubtree(target, getTypeName())); |
| result.setValue((Expression) ASTNode.copySubtree(target, getValue())); |
| return result; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| final boolean subtreeMatch0(ASTMatcher matcher, Object other) { |
| // dispatch to correct overloaded match method |
| return matcher.match(this, other); |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| void accept0(ASTVisitor visitor) { |
| boolean visitChildren = visitor.visit(this); |
| if (visitChildren) { |
| // visit children in normal left to right reading order |
| acceptChild(visitor, getTypeName()); |
| acceptChild(visitor, getValue()); |
| } |
| visitor.endVisit(this); |
| } |
| |
| /** |
| * Returns the value of this annotation. |
| * |
| * @return the value node |
| */ |
| public Expression getValue() { |
| if (this.value == null) { |
| // lazy init must be thread-safe for readers |
| synchronized (this) { |
| if (this.value == null) { |
| preLazyInit(); |
| this.value = new SimpleName(this.ast); |
| postLazyInit(this.value, VALUE_PROPERTY); |
| } |
| } |
| } |
| return this.value; |
| } |
| |
| /** |
| * Sets the value of this annotation. |
| * |
| * @param value the new value |
| * @exception IllegalArgumentException if: |
| * <ul> |
| * <li>the node belongs to a different AST</li> |
| * <li>the node already has a parent</li> |
| * <li>a cycle in would be created</li> |
| * </ul> |
| */ |
| public void setValue(Expression value) { |
| if (value == null) { |
| throw new IllegalArgumentException(); |
| } |
| ASTNode oldChild = this.value; |
| preReplaceChild(oldChild, value, VALUE_PROPERTY); |
| this.value = value; |
| postReplaceChild(oldChild, value, VALUE_PROPERTY); |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| int memSize() { |
| return super.memSize() + 1 * 4; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| int treeSize() { |
| return |
| memSize() |
| + (this.typeName == null ? 0 : getTypeName().treeSize()) |
| + (this.value == null ? 0 : getValue().treeSize()); |
| } |
| } |