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A packaging of the IntelliJ Community Edition groovy-psi library. This is release number 1 of trunk branch 142.

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/*
 * 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 org.jetbrains.plugins.groovy.lang.psi.impl;

import com.intellij.extapi.psi.StubBasedPsiElementBase;
import com.intellij.lang.ASTNode;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.stubs.IStubElementType;
import com.intellij.psi.stubs.StubElement;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.lang.psi.GroovyElementVisitor;
import org.jetbrains.plugins.groovy.lang.psi.GroovyFile;
import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElement;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinitionBody;
import org.jetbrains.plugins.groovy.util.GrFileIndexUtil;

/**
 * @author ilyas
 */
public abstract class GrStubElementBase extends StubBasedPsiElementBase implements GroovyPsiElement {

  protected GrStubElementBase(final T stub, IStubElementType nodeType) {
    super(stub, nodeType);
  }

  public GrStubElementBase(final ASTNode node) {
    super(node);
  }

  @Override
  public void delete() throws IncorrectOperationException {
    getParent().deleteChildRange(this, this);
  }

  @Override
  public abstract PsiElement getParent();

  @Override
  public void accept(GroovyElementVisitor visitor) {
    visitor.visitElement(this);
  }

  @Override
  public void acceptChildren(GroovyElementVisitor visitor) {
    GroovyPsiElementImpl.acceptGroovyChildren(this, visitor);
  }

  protected PsiElement getDefinitionParent() {
    final PsiElement candidate = getParentByStub();
    if (candidate instanceof GroovyFile || candidate instanceof GrTypeDefinitionBody) {
      return candidate;
    }

    return getParentByTree();
  }

  @NotNull
  @Override
  public GlobalSearchScope getResolveScope() {
    final PsiFile containingFile = getContainingFile();
    final GlobalSearchScope elementScope = super.getResolveScope();
    return GrFileIndexUtil.isGroovySourceFile(containingFile)
           ? elementScope
           : GlobalSearchScope.fileScope(containingFile).union(elementScope);
  }
}