| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.psi.impl.source.tree.java; |
| |
| import com.intellij.lang.ASTNode; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.PsiImplUtil; |
| import com.intellij.psi.impl.source.tree.*; |
| import com.intellij.psi.tree.ChildRoleBase; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.psi.tree.TokenSet; |
| import com.intellij.util.CharTable; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author dsl |
| */ |
| public class PsiReferenceParameterListImpl extends CompositePsiElement implements PsiReferenceParameterList { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.tree.java.PsiReferenceParameterListImpl"); |
| private static final TokenSet TYPE_SET = TokenSet.create(JavaElementType.TYPE); |
| |
| public PsiReferenceParameterListImpl() { |
| super(JavaElementType.REFERENCE_PARAMETER_LIST); |
| } |
| |
| @Override |
| @NotNull |
| public PsiTypeElement[] getTypeParameterElements() { |
| return getChildrenAsPsiElements(JavaElementType.TYPE, PsiTypeElement.ARRAY_FACTORY); |
| } |
| |
| @Override |
| @NotNull |
| public PsiType[] getTypeArguments() { |
| return PsiImplUtil.typesByReferenceParameterList(this); |
| } |
| |
| @Override |
| public int getChildRole(ASTNode child) { |
| IElementType i = child.getElementType(); |
| if (i == JavaElementType.TYPE) { |
| return ChildRole.TYPE_IN_REFERENCE_PARAMETER_LIST; |
| } |
| else if (i == JavaTokenType.COMMA) { |
| return ChildRole.COMMA; |
| } |
| else if (i == JavaTokenType.LT) { |
| return ChildRole.LT_IN_TYPE_LIST; |
| } |
| else if (i == JavaTokenType.GT) { |
| return ChildRole.GT_IN_TYPE_LIST; |
| } |
| else { |
| return ChildRoleBase.NONE; |
| } |
| } |
| |
| @Override |
| public ASTNode findChildByRole(int role){ |
| LOG.assertTrue(ChildRole.isUnique(role)); |
| switch(role){ |
| default: |
| return null; |
| |
| case ChildRole.LT_IN_TYPE_LIST: |
| if (getFirstChildNode() != null && getFirstChildNode().getElementType() == JavaTokenType.LT){ |
| return getFirstChildNode(); |
| } |
| else{ |
| return null; |
| } |
| |
| case ChildRole.GT_IN_TYPE_LIST: |
| if (getLastChildNode() != null && getLastChildNode().getElementType() == JavaTokenType.GT){ |
| return getLastChildNode(); |
| } |
| else{ |
| return null; |
| } |
| } |
| } |
| |
| @Override |
| public TreeElement addInternal(TreeElement first, ASTNode last, ASTNode anchor, Boolean before){ |
| if (first == last && first.getElementType() == JavaElementType.TYPE){ |
| if (getLastChildNode() != null && getLastChildNode().getElementType() == TokenType.ERROR_ELEMENT){ |
| super.deleteChildInternal(getLastChildNode()); |
| } |
| } |
| |
| final CharTable treeCharTab = SharedImplUtil.findCharTableByTree(this); |
| |
| if (getFirstChildNode()== null || getFirstChildNode().getElementType() != JavaTokenType.LT){ |
| TreeElement lt = Factory.createSingleLeafElement(JavaTokenType.LT, "<", 0, 1, treeCharTab, getManager()); |
| super.addInternal(lt, lt, getFirstChildNode(), Boolean.TRUE); |
| } |
| if (getLastChildNode() == null || getLastChildNode().getElementType() != JavaTokenType.GT){ |
| TreeElement gt = Factory.createSingleLeafElement(JavaTokenType.GT, ">", 0, 1, treeCharTab, getManager()); |
| super.addInternal(gt, gt, getLastChildNode(), Boolean.FALSE); |
| } |
| |
| if (anchor == null){ |
| if (before == null || before.booleanValue()){ |
| anchor = findChildByRole(ChildRole.GT_IN_TYPE_LIST); |
| before = Boolean.TRUE; |
| } |
| else{ |
| anchor = findChildByRole(ChildRole.LT_IN_TYPE_LIST); |
| before = Boolean.FALSE; |
| } |
| } |
| |
| final TreeElement firstAdded = super.addInternal(first, last, anchor, before); |
| |
| if (first == last && first.getElementType() == JavaElementType.TYPE) { |
| JavaSourceUtil.addSeparatingComma(this, first, TYPE_SET); |
| } |
| |
| return firstAdded; |
| } |
| |
| @Override |
| public void deleteChildInternal(@NotNull ASTNode child) { |
| if (child.getElementType() == JavaElementType.TYPE) { |
| JavaSourceUtil.deleteSeparatingComma(this, child); |
| } |
| |
| super.deleteChildInternal(child); |
| |
| if (getTypeParameterElements().length == 0){ |
| ASTNode lt = findChildByRole(ChildRole.LT_IN_TYPE_LIST); |
| if (lt != null){ |
| deleteChildInternal(lt); |
| } |
| |
| ASTNode gt = findChildByRole(ChildRole.GT_IN_TYPE_LIST); |
| if (gt != null){ |
| deleteChildInternal(gt); |
| } |
| } |
| } |
| |
| @Override |
| public void accept(@NotNull PsiElementVisitor visitor) { |
| if (visitor instanceof JavaElementVisitor) { |
| ((JavaElementVisitor)visitor).visitReferenceParameterList(this); |
| } |
| else { |
| visitor.visitElement(this); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "PsiReferenceParameterList"; |
| } |
| } |