| /* |
| * 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.synthetic; |
| |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.CommonClassNames; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiType; |
| import com.intellij.util.IncorrectOperationException; |
| import icons.JetgroovyIcons; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.lang.psi.*; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariable; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrAssignmentExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinition; |
| import org.jetbrains.plugins.groovy.lang.psi.api.types.GrTypeElement; |
| |
| import javax.swing.*; |
| |
| /** |
| * @author Max Medvedev |
| */ |
| public class GrBindingVariable extends GrLightVariable implements GrVariable { |
| private final GroovyFile myFile; |
| private Boolean myHasWriteAccess; |
| |
| public GrBindingVariable(final GroovyFile file, String name, Boolean isWriteAccess) { |
| super(file.getManager(), name, CommonClassNames.JAVA_LANG_OBJECT, file); |
| myFile = file; |
| myHasWriteAccess = isWriteAccess; |
| } |
| |
| @Override |
| public PsiElement getContext() { |
| return myFile; |
| } |
| |
| @Nullable |
| @Override |
| public Icon getIcon(int flags) { |
| return JetgroovyIcons.Groovy.Variable; |
| } |
| |
| @Nullable |
| @Override |
| public GrExpression getInitializerGroovy() { |
| return null; |
| } |
| |
| @Override |
| public void setType(@Nullable PsiType type) throws IncorrectOperationException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Nullable |
| @Override |
| public GrTypeElement getTypeElementGroovy() { |
| return null; |
| } |
| |
| @Nullable |
| @Override |
| public PsiType getTypeGroovy() { |
| return null; |
| } |
| |
| @Nullable |
| @Override |
| public PsiType getDeclaredType() { |
| return null; |
| } |
| |
| @Override |
| public void setInitializerGroovy(GrExpression initializer) { |
| //todo? |
| throw new UnsupportedOperationException(); |
| } |
| |
| @NotNull |
| @Override |
| public PsiElement getNameIdentifierGroovy() { |
| return GroovyPsiElementFactory.getInstance(getProject()).createReferenceNameFromText(getName()); |
| } |
| |
| @Override |
| public void accept(GroovyElementVisitor visitor) { |
| //todo |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void acceptChildren(GroovyElementVisitor visitor) { |
| //todo |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean hasWriteAccess() { |
| if (myHasWriteAccess != null) return myHasWriteAccess.booleanValue(); |
| |
| myFile.accept(new GroovyRecursiveElementVisitor() { |
| @Override |
| public void visitAssignmentExpression(GrAssignmentExpression expression) { |
| if (isRefToMe(expression.getLValue())) { |
| myHasWriteAccess = true; |
| } |
| super.visitAssignmentExpression(expression); |
| } |
| |
| @Override |
| public void visitTypeDefinition(GrTypeDefinition typeDefinition) { |
| //don't go inside type definitions |
| } |
| |
| @Override |
| public void visitElement(GroovyPsiElement element) { |
| if (myHasWriteAccess == null) { |
| super.visitElement(element); |
| } |
| } |
| }); |
| |
| if (myHasWriteAccess == null) myHasWriteAccess = false; |
| return myHasWriteAccess.booleanValue(); |
| } |
| |
| private boolean isRefToMe(@Nullable PsiElement element) { |
| if (maybeRefToMe(element)) { |
| final PsiElement resolved = ((GrReferenceExpression)element).resolve(); |
| if (resolved == null || resolved == this) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private boolean maybeRefToMe(PsiElement element) { |
| return element instanceof GrReferenceExpression && |
| !((GrReferenceExpression)element).isQualified() && |
| getName().equals(((GrReferenceExpression)element).getReferenceName()); |
| } |
| |
| |
| public void updateWriteAccessIfNeeded(@Nullable PsiElement place) { |
| if (myHasWriteAccess == null && maybeRefToMe(place)) { |
| assert place != null; |
| final PsiElement parent = place.getParent(); |
| if (parent instanceof GrAssignmentExpression && ((GrAssignmentExpression)parent).getLValue() == place) { |
| myHasWriteAccess = true; |
| } |
| } |
| } |
| |
| @Override |
| public boolean isEquivalentTo(@Nullable PsiElement another) { |
| return another instanceof GrBindingVariable && |
| StringUtil.equals(getName(), ((GrBindingVariable)another).getName()) && |
| getManager().areElementsEquivalent(getContainingFile(), another.getContainingFile()); |
| } |
| |
| @Override |
| public String toString() { |
| return "Binding variable"; |
| } |
| } |