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DeclareParentsDeclaration.java

/********************************************************************
 * Copyright (c) 2006 Contributors. 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://eclipse.org/legal/epl-v10.html 
 *  
 * Contributors: IBM Corporation - initial API and implementation 
 *                       Helen Hawkins   - iniital version
 *******************************************************************/
package org.aspectj.org.eclipse.jdt.core.dom;

import java.util.ArrayList;
import java.util.List;

/**
 * DeclareParentsDeclaration DOM AST node.
 * 
 * Has everything a DeclareDeclaration has plus:
 *      a TypePattern called 'childTypePattern'
 *      a boolean called 'isExtends'
 *    a TypePattern list called 'typePatternsList'
 */
00024 public class DeclareParentsDeclaration extends DeclareDeclaration {

      public static final ChildPropertyDescriptor JAVADOC_PROPERTY = 
            internalJavadocPropertyFactory(DeclareParentsDeclaration.class);

      public static final ChildPropertyDescriptor CHILD_TYPE_PATTERN_PROPERTY = 
            new ChildPropertyDescriptor(DeclareParentsDeclaration.class, "childTypePattern", TypePattern.class, MANDATORY, NO_CYCLE_RISK); //$NON-NLS-1$

      public static final SimplePropertyDescriptor IS_EXTENDS_PROPERTY = 
            new SimplePropertyDescriptor(DeclareParentsDeclaration.class, "isExtends", boolean.class, MANDATORY); //$NON-NLS-1$
      
      public static final ChildListPropertyDescriptor PARENTS_TYPE_PATTERNS_LIST_PROPERTY = 
            new ChildListPropertyDescriptor(DeclareParentsDeclaration.class, "typePatternsList", TypePattern.class, NO_CYCLE_RISK); //$NON-NLS-1$
      
      private static final List PROPERTY_DESCRIPTORS_2_0;   
      private static final List PROPERTY_DESCRIPTORS_3_0;
      
      static {
            List propertyList = new ArrayList(4);
            createPropertyList(DeclareParentsDeclaration.class, propertyList);
            addProperty(JAVADOC_PROPERTY, propertyList);
            addProperty(CHILD_TYPE_PATTERN_PROPERTY, propertyList);
            addProperty(IS_EXTENDS_PROPERTY, propertyList);
            addProperty(PARENTS_TYPE_PATTERNS_LIST_PROPERTY, propertyList);
            PROPERTY_DESCRIPTORS_2_0 = reapPropertyList(propertyList);
            
            propertyList = new ArrayList(4);
            createPropertyList(DeclareParentsDeclaration.class, propertyList);
            addProperty(JAVADOC_PROPERTY, propertyList);
            addProperty(CHILD_TYPE_PATTERN_PROPERTY, propertyList);
            addProperty(IS_EXTENDS_PROPERTY, propertyList);
            addProperty(PARENTS_TYPE_PATTERNS_LIST_PROPERTY, propertyList);
            PROPERTY_DESCRIPTORS_3_0 = reapPropertyList(propertyList);
      }

      private boolean isExtends;
      private TypePattern childTypePattern;
      protected ASTNode.NodeList parentTypePatterns =new ASTNode.NodeList(PARENTS_TYPE_PATTERNS_LIST_PROPERTY);

      
      DeclareParentsDeclaration(AST ast) {
            this(ast,false);
      }
      
      DeclareParentsDeclaration(AST ast, boolean isExtends) {
            super(ast);
            this.isExtends = isExtends;
      }
      
      ASTNode clone0(AST target) {
            DeclareParentsDeclaration result = new DeclareParentsDeclaration(target/*,declareDecl*/);
            result.setSourceRange(this.getStartPosition(), this.getLength());
            result.setJavadoc(
                  (Javadoc) ASTNode.copySubtree(target, getJavadoc()));
            result.setChildTypePattern(
                        (TypePattern) ASTNode.copySubtree(target, getChildTypePattern()));
            result.setExtends(isExtends());
            result.parentTypePatterns().addAll(
                        ASTNode.copySubtrees(target, parentTypePatterns()));
            return result;
      }

      final boolean subtreeMatch0(ASTMatcher matcher, Object other) {
            // dispatch to correct overloaded match method
            return ((AjASTMatcher)matcher).match(this, other);
      }
      
      /* (omit javadoc for this method)
       * Method declared on ASTNode.
       */
      void accept0(ASTVisitor visitor) {
            if (visitor instanceof AjASTVisitor) {
                  boolean visitChildren = ((AjASTVisitor)visitor).visit(this);
                  if (visitChildren) {
                        // visit children in normal left to right reading order
                        acceptChild(visitor, getJavadoc());
                        acceptChild(visitor, getChildTypePattern());
                        acceptChildren(visitor, this.parentTypePatterns);
                  }
                  ((AjASTVisitor)visitor).endVisit(this);
            }
      }

      /* (omit javadoc for this method)
       * Method declared on BodyDeclaration.
       * 
       * There are no modifiers declared for DeclareErrorDeclaration - 
       * therefore we don't do anything with this
       */
      SimplePropertyDescriptor internalModifiersProperty() {
            return internalModifiersPropertyFactory(DeclareErrorDeclaration.class);
      }

      /* (omit javadoc for this method)
       * Method declared on BodyDeclaration.
       * 
       * There are no modifiers declared for DeclareErrorDeclaration - 
       * therefore we don't do anything with this
       */
      ChildListPropertyDescriptor internalModifiers2Property() {
            return internalModifiers2PropertyFactory(DeclareErrorDeclaration.class);
      }

      /* (omit javadoc for this method)
       * Method declared on BodyDeclaration.
       */
      ChildPropertyDescriptor internalJavadocProperty() {
            return JAVADOC_PROPERTY;
      }

      /**
       * 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
       * <code>AST.JLS&ast;</code> constants
       * @return a list of property descriptors (element type: 
       * {@link StructuralPropertyDescriptor})
       * @since 3.0
       */
00144       public static List propertyDescriptors(int apiLevel) {
            if (apiLevel == AST.JLS2_INTERNAL) {
                  return PROPERTY_DESCRIPTORS_2_0;
            } else {
                  return PROPERTY_DESCRIPTORS_3_0;
            }
      }
      
      /* (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 == JAVADOC_PROPERTY) {
                  if (get) {
                        return getJavadoc();
                  } else {
                        setJavadoc((Javadoc) child);
                        return null;
                  }
            }
            if (property == CHILD_TYPE_PATTERN_PROPERTY) {
                  if (get) {
                        return getChildTypePattern();
                  } else {
                        setChildTypePattern((TypePattern) 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.
       */
      boolean internalGetSetBooleanProperty(SimplePropertyDescriptor property, boolean get, boolean value) {
            if (property == IS_EXTENDS_PROPERTY) {
                  if (get) {
                        return isExtends();
                  } else {
                        setExtends(value);
                        return false;
                  }
            }
            return super.internalGetSetBooleanProperty(property,get,value);
      }
      
      /* (omit javadoc for this method)
       * Method declared on ASTNode.
       */
      List internalGetChildListProperty(ChildListPropertyDescriptor property) {
            if (property == PARENTS_TYPE_PATTERNS_LIST_PROPERTY) {
                  return parentTypePatterns();
            }
            // allow default implementation to flag the error
            return super.internalGetChildListProperty(property);
      }
      
      /**
       * Returns the live ordered list of parent type patterns for this
       * declare precedence.
       * 
       * @return the live list of parent type patterns
       *    (element type: <code>TypePattern</code>)
       */ 
00216       public List parentTypePatterns() {
            return this.parentTypePatterns;
      }
      
      
      public TypePattern getChildTypePattern(){
            return childTypePattern;
      }
      
      public void setChildTypePattern(TypePattern typePattern) {
            if (typePattern == null) {
                  throw new IllegalArgumentException();
            }
            ASTNode oldChild = this.childTypePattern;
            preReplaceChild(oldChild, typePattern, CHILD_TYPE_PATTERN_PROPERTY);
            this.childTypePattern = typePattern;
            postReplaceChild(oldChild, typePattern, CHILD_TYPE_PATTERN_PROPERTY);
      }

      /**
       * Returns whether this declareParents declares an extends
       * or implements.
       * 
       * @return <code>true</code> if this is an extends declaration,
       *    and <code>false</code> if this is an implements declaration
       */ 
00242       public boolean isExtends() {
            return this.isExtends;
      }
      
      /**
       * Sets whether this declareParents declares an extends or implements.
       * 
       * @param isExtends <code>true</code> for an extends declaration,
       *    and <code>false</code> for an implements declaration
       */ 
00252       public void setExtends(boolean isExtends) {
            preValueChange(IS_EXTENDS_PROPERTY);
            this.isExtends = isExtends;
            postValueChange(IS_EXTENDS_PROPERTY);
      }
      
}

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