| /******************************************************************************* |
| * Copyright (c) 2000, 2010 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.Iterator; |
| import java.util.List; |
| |
| /** |
| * Abstract base class of all AST nodes that represent body declarations |
| * that may appear in the body of some kind of class or interface declaration, |
| * including anonymous class declarations, enumeration declarations, and |
| * enumeration constant declarations. |
| * <p> |
| * For JLS2: |
| * <pre> |
| * BodyDeclaration: |
| * ClassDeclaration |
| * InterfaceDeclaration |
| * MethodDeclaration |
| * ConstructorDeclaration |
| * FieldDeclaration |
| * Initializer |
| * </pre> |
| * For JLS3, a number of new node types were introduced: |
| * <pre> |
| * BodyDeclaration: |
| * ClassDeclaration |
| * InterfaceDeclaration |
| * EnumDeclaration |
| * MethodDeclaration |
| * ConstructorDeclaration |
| * FieldDeclaration |
| * Initializer |
| * EnumConstantDeclaration |
| * AnnotationTypeDeclaration |
| * AnnotationTypeMemberDeclaration |
| * </pre> |
| * </p> |
| * <p> |
| * All types of body declarations carry modifiers (and annotations), although they differ in |
| * which modifiers are allowed. Most types of body declarations can carry a |
| * doc comment; Initializer is the only ones that does not. The source range |
| * for body declarations always includes the doc comment if present. |
| * </p> |
| * |
| * @since 2.0 |
| */ |
| public abstract class BodyDeclaration extends ASTNode { |
| |
| /** |
| * The doc comment, or <code>null</code> if none. |
| * Defaults to none. |
| */ |
| Javadoc optionalDocComment = null; |
| |
| /** |
| * The modifier flags; bit-wise or of Modifier flags. |
| * Defaults to none. Not used in 3.0. |
| * @since 3.0 - field was moved up from subclasses |
| */ |
| private int modifierFlags = Modifier.NONE; |
| |
| /** |
| * The extended modifiers (element type: {@link IExtendedModifier}). |
| * Null in JLS2. Added in JLS3; defaults to an empty list |
| * (see constructor). |
| * |
| * @since 3.0 |
| */ |
| ASTNode.NodeList modifiers = null; |
| |
| /** |
| * Returns structural property descriptor for the "modifiers" property |
| * of this node as used in JLS2 (type: {@link Integer}). |
| * |
| * @return the property descriptor |
| */ |
| abstract SimplePropertyDescriptor internalModifiersProperty(); |
| |
| /** |
| * Returns structural property descriptor for the "modifiers" property |
| * of this node as used in JLS3 (element type: {@link IExtendedModifier}). |
| * |
| * @return the property descriptor |
| */ |
| abstract ChildListPropertyDescriptor internalModifiers2Property(); |
| |
| /** |
| * Returns structural property descriptor for the "modifiers" property |
| * of this node as used in JLS3 (element type: {@link IExtendedModifier}). |
| * |
| * @return the property descriptor |
| * @since 3.1 |
| */ |
| public final ChildListPropertyDescriptor getModifiersProperty() { |
| // important: return property for AST.JLS3 |
| return internalModifiers2Property(); |
| } |
| |
| /** |
| * Returns structural property descriptor for the "javadoc" property |
| * of this node (child type: {@link Javadoc}). |
| * |
| * @return the property descriptor |
| */ |
| abstract ChildPropertyDescriptor internalJavadocProperty(); |
| |
| /** |
| * Returns structural property descriptor for the "javadoc" property |
| * of this node (child type: {@link Javadoc}). |
| * |
| * @return the property descriptor |
| * @since 3.1 |
| */ |
| public final ChildPropertyDescriptor getJavadocProperty() { |
| return internalJavadocProperty(); |
| } |
| |
| /** |
| * Creates and returns a structural property descriptor for the |
| * "javadoc" property declared on the given concrete node type (child type: {@link Javadoc}). |
| * |
| * @return the property descriptor |
| */ |
| static final ChildPropertyDescriptor internalJavadocPropertyFactory(Class nodeClass) { |
| return new ChildPropertyDescriptor(nodeClass, "javadoc", Javadoc.class, OPTIONAL, NO_CYCLE_RISK); //$NON-NLS-1$ |
| } |
| |
| /** |
| * Creates and returns a structural property descriptor for the |
| * "modifiers" property declared on the given concrete node type (type: {@link Integer}). |
| * |
| * @return the property descriptor |
| */ |
| static final SimplePropertyDescriptor internalModifiersPropertyFactory(Class nodeClass) { |
| return new SimplePropertyDescriptor(nodeClass, "modifiers", int.class, MANDATORY); //$NON-NLS-1$ |
| } |
| |
| /** |
| * Creates and returns a structural property descriptor for the |
| * "modifiers" property declared on the given concrete node type (element type: {@link IExtendedModifier}). |
| * |
| * @return the property descriptor |
| */ |
| static final ChildListPropertyDescriptor internalModifiers2PropertyFactory(Class nodeClass) { |
| return new ChildListPropertyDescriptor(nodeClass, "modifiers", IExtendedModifier.class, CYCLE_RISK); //$NON-NLS-1$ |
| } |
| |
| /** |
| * Creates a new AST node for a body declaration node owned by the |
| * given AST. |
| * <p> |
| * N.B. This constructor is package-private. |
| * </p> |
| * |
| * @param ast the AST that is to own this node |
| */ |
| BodyDeclaration(AST ast) { |
| super(ast); |
| if (ast.apiLevel >= AST.JLS3) { |
| this.modifiers = new ASTNode.NodeList(internalModifiers2Property()); |
| } |
| } |
| |
| /** |
| * Returns the doc comment node. |
| * |
| * @return the doc comment node, or <code>null</code> if none |
| */ |
| public Javadoc getJavadoc() { |
| return this.optionalDocComment; |
| } |
| |
| /** |
| * Sets or clears the doc comment node. |
| * |
| * @param docComment the doc comment node, or <code>null</code> if none |
| * @exception IllegalArgumentException if the doc comment string is invalid |
| */ |
| public void setJavadoc(Javadoc docComment) { |
| ChildPropertyDescriptor p = internalJavadocProperty(); |
| ASTNode oldChild = this.optionalDocComment; |
| preReplaceChild(oldChild, docComment, p); |
| this.optionalDocComment = docComment; |
| postReplaceChild(oldChild, docComment, p); |
| } |
| |
| /** |
| * Returns the modifiers explicitly specified on this declaration. |
| * <p> |
| * In the JLS3 API, this method is a convenience method that |
| * computes these flags from <code>modifiers()</code>. |
| * </p> |
| * |
| * @return the bit-wise or of <code>Modifier</code> constants |
| * @see Modifier |
| */ |
| public int getModifiers() { |
| // more efficient than checking getAST().API_LEVEL |
| if (this.modifiers == null) { |
| // JLS2 behavior - bona fide property |
| return this.modifierFlags; |
| } else { |
| // JLS3 behavior - convenience method |
| // performance could be improved by caching computed flags |
| // but this would require tracking changes to this.modifiers |
| int computedmodifierFlags = Modifier.NONE; |
| for (Iterator it = modifiers().iterator(); it.hasNext(); ) { |
| Object x = it.next(); |
| if (x instanceof Modifier) { |
| computedmodifierFlags |= ((Modifier) x).getKeyword().toFlagValue(); |
| } |
| } |
| return computedmodifierFlags; |
| } |
| } |
| |
| /** |
| * Sets the modifiers explicitly specified on this declaration (JLS2 API only). |
| * |
| * @param modifiers the given modifiers (bit-wise or of <code>Modifier</code> constants) |
| * @exception UnsupportedOperationException if this operation is used in |
| * an AST later than JLS2 |
| * @see Modifier |
| * @deprecated In the JLS3 API, this method is replaced by |
| * {@link #modifiers()} which contains a list of a <code>Modifier</code> nodes. |
| */ |
| public void setModifiers(int modifiers) { |
| internalSetModifiers(modifiers); |
| } |
| |
| /** |
| * Internal synonym for deprecated method. Used to avoid |
| * deprecation warnings. |
| * @since 3.1 |
| */ |
| /*package*/ final void internalSetModifiers(int pmodifiers) { |
| // more efficient than just calling supportedOnlyIn2() to check |
| if (this.modifiers != null) { |
| supportedOnlyIn2(); |
| } |
| SimplePropertyDescriptor p = internalModifiersProperty(); |
| preValueChange(p); |
| this.modifierFlags = pmodifiers; |
| postValueChange(p); |
| } |
| |
| /** |
| * Returns the live ordered list of modifiers and annotations |
| * of this declaration (added in JLS3 API). |
| * |
| * @return the live list of modifiers and annotations |
| * (element type: {@link IExtendedModifier}) |
| * @exception UnsupportedOperationException if this operation is used in |
| * a JLS2 AST |
| * @since 3.1 |
| */ |
| public List modifiers() { |
| // more efficient than just calling unsupportedIn2() to check |
| if (this.modifiers == null) { |
| unsupportedIn2(); |
| } |
| return this.modifiers; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| int memSize() { |
| return BASE_NODE_SIZE + 3 * 4; |
| } |
| } |
| |