| /* |
| * Copyright 2000-2009 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.Constants; |
| import com.intellij.psi.impl.source.tree.ChildRole; |
| import com.intellij.psi.impl.source.tree.CompositePsiElement; |
| import com.intellij.psi.scope.PsiScopeProcessor; |
| import com.intellij.psi.tree.ChildRoleBase; |
| import com.intellij.psi.tree.IElementType; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author dsl |
| */ |
| public class PsiForeachStatementImpl extends CompositePsiElement implements PsiForeachStatement, Constants { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.tree.java.PsiForeachStatementImpl"); |
| public PsiForeachStatementImpl() { |
| super(FOREACH_STATEMENT); |
| } |
| |
| @Override |
| @NotNull |
| public PsiParameter getIterationParameter() { |
| return (PsiParameter) findChildByRoleAsPsiElement(ChildRole.FOR_ITERATION_PARAMETER); |
| } |
| |
| @Override |
| public PsiExpression getIteratedValue() { |
| return (PsiExpression) findChildByRoleAsPsiElement(ChildRole.FOR_ITERATED_VALUE); |
| } |
| |
| @Override |
| public PsiStatement getBody() { |
| return (PsiStatement) findChildByRoleAsPsiElement(ChildRole.LOOP_BODY); |
| } |
| |
| @Override |
| @NotNull |
| public PsiJavaToken getLParenth() { |
| return (PsiJavaToken) findChildByRoleAsPsiElement(ChildRole.LPARENTH); |
| } |
| |
| @Override |
| public PsiJavaToken getRParenth() { |
| return (PsiJavaToken) findChildByRoleAsPsiElement(ChildRole.RPARENTH); |
| } |
| |
| @Override |
| public ASTNode findChildByRole(int role) { |
| LOG.assertTrue(ChildRole.isUnique(role)); |
| |
| switch(role) { |
| case ChildRole.LOOP_BODY: |
| return PsiImplUtil.findStatementChild(this); |
| |
| case ChildRole.FOR_ITERATED_VALUE: |
| return findChildByType(EXPRESSION_BIT_SET); |
| |
| case ChildRole.FOR_KEYWORD: |
| return getFirstChildNode(); |
| |
| case ChildRole.LPARENTH: |
| return findChildByType(LPARENTH); |
| |
| case ChildRole.RPARENTH: |
| return findChildByType(RPARENTH); |
| |
| case ChildRole.FOR_ITERATION_PARAMETER: |
| return findChildByType(PARAMETER); |
| |
| case ChildRole.COLON: |
| return findChildByType(COLON); |
| |
| default: |
| return null; |
| } |
| } |
| |
| @Override |
| public int getChildRole(ASTNode child) { |
| LOG.assertTrue(child.getTreeParent() == this); |
| |
| IElementType i = child.getElementType(); |
| if (i == FOR_KEYWORD) { |
| return ChildRole.FOR_KEYWORD; |
| } |
| else if (i == LPARENTH) { |
| return ChildRole.LPARENTH; |
| } |
| else if (i == RPARENTH) { |
| return ChildRole.RPARENTH; |
| } |
| else if (i == PARAMETER) { |
| return ChildRole.FOR_ITERATION_PARAMETER; |
| } |
| else if (i == COLON) { |
| return ChildRole.COLON; |
| } |
| else { |
| if (EXPRESSION_BIT_SET.contains(child.getElementType())) { |
| return ChildRole.FOR_ITERATED_VALUE; |
| } |
| else if (child.getPsi() instanceof PsiStatement) { |
| return ChildRole.LOOP_BODY; |
| } |
| else { |
| return ChildRoleBase.NONE; |
| } |
| } |
| } |
| |
| public String toString() { |
| return "PsiForeachStatement"; |
| } |
| |
| @Override |
| public boolean processDeclarations(@NotNull PsiScopeProcessor processor, @NotNull ResolveState state, PsiElement lastParent, @NotNull PsiElement place) { |
| processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, this); |
| if (lastParent == null || lastParent.getParent() != this /*|| lastParent == getIteratedValue()*/) |
| // Parent element should not see our vars |
| return true; |
| |
| return processor.execute(getIterationParameter(), state); |
| } |
| |
| @Override |
| public void accept(@NotNull PsiElementVisitor visitor) { |
| if (visitor instanceof JavaElementVisitor) { |
| ((JavaElementVisitor)visitor).visitForeachStatement(this); |
| } |
| else { |
| visitor.visitElement(this); |
| } |
| } |
| } |