/******************************************************************************* * Copyright (c) 2004, 2008 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 net.sourceforge.phpdt.core.dom; import java.util.ArrayList; import java.util.List; /** * Member value pair node (added in JLS3 API). Member value pairs appear in annotations. *
*
* MemberValuePair: * SimpleName = Expression ** Within annotations, only certain kinds of expressions are meaningful, * including other annotations. * * * @see NormalAnnotation * @since 3.1 * @noinstantiate This class is not intended to be instantiated by clients. */ public class MemberValuePair extends ASTNode { /** * The "name" structural property of this node type. */ public static final ChildPropertyDescriptor NAME_PROPERTY = new ChildPropertyDescriptor(MemberValuePair.class, "name", SimpleName.class, MANDATORY, NO_CYCLE_RISK); //$NON-NLS-1$ /** * The "value" structural property of this node type. */ public static final ChildPropertyDescriptor VALUE_PROPERTY = new ChildPropertyDescriptor(MemberValuePair.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(MemberValuePair.class, propertyList); addProperty(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 member name; lazily initialized; defaults to a unspecified, * legal name. */ private SimpleName name = null; /** * The value; lazily initialized; defaults to a unspecified, * legal expression. */ private Expression value = null; /** * Creates a new AST node for a member value pair owned by the given * AST. By default, the node has an unspecified (but legal) member * name and value. *
* N.B. This constructor is package-private. *
* * @param ast the AST that is to own this node */ MemberValuePair(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 == NAME_PROPERTY) { if (get) { return getName(); } else { setName((SimpleName) 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 ASTNode. */ final int getNodeType0() { return MEMBER_VALUE_PAIR; } /* (omit javadoc for this method) * Method declared on ASTNode. */ ASTNode clone0(AST target) { MemberValuePair result = new MemberValuePair(target); result.setSourceRange(this.getStartPosition(), this.getLength()); result.setName((SimpleName) ASTNode.copySubtree(target, getName())); 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, getName()); acceptChild(visitor, getValue()); } visitor.endVisit(this); } /** * Returns the member name. * * @return the member name node */ public SimpleName getName() { if (this.name == null) { // lazy init must be thread-safe for readers synchronized (this) { if (this.name == null) { preLazyInit(); this.name = new SimpleName(this.ast); postLazyInit(this.name, NAME_PROPERTY); } } } return this.name; } /** * Resolves and returns the member value pair binding for this member value pair. ** Note that bindings are generally unavailable unless requested when the * AST is being built. *
* * @return the binding, ornull
if the binding cannot be
* resolved
* @since 3.2
*/
public final IMemberValuePairBinding resolveMemberValuePairBinding() {
return this.ast.getBindingResolver().resolveMemberValuePair(this);
}
/**
* Sets the member name.
*
* @param name the member name node
* @exception IllegalArgumentException if:
*