java/java-impl/src/com/intellij/psi/impl/compiled/ClsTypeParametersListImpl.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.compiled;
  17
  18 import com.intellij.openapi.diagnostic.Logger;
  19 import com.intellij.psi.JavaElementVisitor;
  20 import com.intellij.psi.PsiElementVisitor;
  21 import com.intellij.psi.PsiTypeParameter;
  22 import com.intellij.psi.PsiTypeParameterList;
  23 import com.intellij.psi.impl.PsiImplUtil;
  24 import com.intellij.psi.impl.java.stubs.JavaStubElementTypes;
  25 import com.intellij.psi.impl.java.stubs.PsiTypeParameterListStub;
  26 import com.intellij.psi.impl.source.SourceTreeToPsiMap;
  27 import com.intellij.psi.impl.source.tree.TreeElement;
  28 import org.jetbrains.annotations.NotNull;
  29
  30 /**
  31  * @author max
  32  */
  33 public class ClsTypeParametersListImpl extends ClsRepositoryPsiElement<PsiTypeParameterListStub> implements PsiTypeParameterList {
  34   private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.compiled.ClsTypeParametersListImpl");
  35
  36   public ClsTypeParametersListImpl(final PsiTypeParameterListStub stub) {
  37     super(stub);
  38   }
  39
  40   public void appendMirrorText(final int indentLevel, final StringBuffer buffer) {
  41     final PsiTypeParameter[] params = getTypeParameters();
  42     if (params.length != 0) {
  43       buffer.append('<');
  44       for (int i = 0; i < params.length; i++) {
  45         ClsTypeParameterImpl parameter = (ClsTypeParameterImpl)params[i];
  46         if (i > 0) buffer.append(", ");
  47         parameter.appendMirrorText(indentLevel, buffer);
  48       }
  49       buffer.append("> ");
  50     }
  51   }
  52
  53   public void setMirror(@NotNull TreeElement element) {
  54     setMirrorCheckingType(element, null);
  55
  56     PsiTypeParameter[] parms = getTypeParameters();
  57     PsiTypeParameter[] parmMirrors = ((PsiTypeParameterList)SourceTreeToPsiMap.treeElementToPsi(element)).getTypeParameters();
  58     LOG.assertTrue(parms.length == parmMirrors.length);
  59     if (parms.length == parmMirrors.length) {
  60       for (int i = 0; i < parms.length; i++) {
  61           ((ClsElementImpl)parms[i]).setMirror((TreeElement)SourceTreeToPsiMap.psiElementToTree(parmMirrors[i]));
  62       }
  63     }
  64   }
  65
  66
  67   public void accept(@NotNull PsiElementVisitor visitor) {
  68     if (visitor instanceof JavaElementVisitor) {
  69       ((JavaElementVisitor)visitor).visitTypeParameterList(this);
  70     }
  71     else {
  72       visitor.visitElement(this);
  73     }
  74   }
  75
  76   public PsiTypeParameter[] getTypeParameters() {
  77     return getStub().getChildrenByType(JavaStubElementTypes.TYPE_PARAMETER, PsiTypeParameter.ARRAY_FACTORY);
  78   }
  79
  80   public int getTypeParameterIndex(PsiTypeParameter typeParameter) {
  81     LOG.assertTrue(typeParameter.getParent() == this);
  82     return PsiImplUtil.getTypeParameterIndex(typeParameter, this);
  83   }
  84
  85   public String toString() {
  86     return "PsiTypeParameterList";
  87   }
  88 }