java/java-impl/src/com/intellij/psi/impl/source/PsiParameterListImpl.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.psi.impl.source;
  17
  18 import com.intellij.lang.ASTNode;
  19 import com.intellij.openapi.diagnostic.Logger;
  20 import com.intellij.psi.JavaElementVisitor;
  21 import com.intellij.psi.PsiElementVisitor;
  22 import com.intellij.psi.PsiParameter;
  23 import com.intellij.psi.PsiParameterList;
  24 import com.intellij.psi.impl.PsiImplUtil;
  25 import com.intellij.psi.impl.java.stubs.JavaStubElementTypes;
  26 import com.intellij.psi.impl.java.stubs.PsiParameterListStub;
  27 import com.intellij.psi.impl.source.tree.CompositeElement;
  28 import org.jetbrains.annotations.NonNls;
  29 import org.jetbrains.annotations.NotNull;
  30
  31 public class PsiParameterListImpl extends JavaStubPsiElement<PsiParameterListStub> implements PsiParameterList {
  32   private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.PsiParameterListImpl");
  33
  34   public PsiParameterListImpl(final PsiParameterListStub stub) {
  35     super(stub, JavaStubElementTypes.PARAMETER_LIST);
  36   }
  37
  38   public PsiParameterListImpl(final ASTNode node) {
  39     super(node);
  40   }
  41
  42   @NotNull
  43   public PsiParameter[] getParameters() {
  44     return getStubOrPsiChildren(JavaStubElementTypes.PARAMETER, PsiParameter.ARRAY_FACTORY);
  45   }
  46
  47   public int getParameterIndex(PsiParameter parameter) {
  48     LOG.assertTrue(parameter.getParent() == this);
  49     return PsiImplUtil.getParameterIndex(parameter, this);
  50   }
  51
  52   @NotNull
  53   public CompositeElement getNode() {
  54     return (CompositeElement)super.getNode();
  55   }
  56
  57   public int getParametersCount() {
  58     final PsiParameterListStub stub = getStub();
  59     if (stub != null) {
  60       return stub.getChildrenStubs().size();
  61     }
  62
  63     return getNode().countChildren(Constants.PARAMETER_BIT_SET);
  64   }
  65
  66   public void accept(@NotNull PsiElementVisitor visitor){
  67     if (visitor instanceof JavaElementVisitor) {
  68       ((JavaElementVisitor)visitor).visitParameterList(this);
  69     }
  70     else {
  71       visitor.visitElement(this);
  72     }
  73   }
  74
  75   @NonNls
  76   public String toString(){
  77     return "PsiParameterList:" + getText();
  78   }
  79 }