| /* |
| * Copyright 2000-2013 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.lang.ASTNode; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.psi.codeStyle.CodeStyleSettingsManager; |
| import com.intellij.psi.codeStyle.JavaCodeStyleManager; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.codeStyle.GroovyCodeStyleSettings; |
| import org.jetbrains.plugins.groovy.lang.parser.GroovyElementTypes; |
| import org.jetbrains.plugins.groovy.lang.psi.GrReferenceElement; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory; |
| import org.jetbrains.plugins.groovy.lang.psi.api.types.GrTypeArgumentList; |
| import org.jetbrains.plugins.groovy.lang.psi.api.types.GrTypeElement; |
| |
| /** |
| * @author ven |
| */ |
| public abstract class GrReferenceElementImpl<Q extends PsiElement> extends GroovyPsiElementImpl implements GrReferenceElement<Q> { |
| private volatile String myCachedQName = null; |
| private volatile String myCachedTextSkipWhiteSpaceAndComments; |
| |
| public GrReferenceElementImpl(@NotNull ASTNode node) { |
| super(node); |
| } |
| |
| public PsiReference getReference() { |
| return this; |
| } |
| |
| @Override |
| public void subtreeChanged() { |
| myCachedQName = null; |
| myCachedTextSkipWhiteSpaceAndComments = null; |
| super.subtreeChanged(); |
| } |
| |
| public String getReferenceName() { |
| PsiElement nameElement = getReferenceNameElement(); |
| if (nameElement != null) { |
| return nameElement.getText(); |
| } |
| return null; |
| } |
| |
| public PsiElement getElement() { |
| return this; |
| } |
| |
| public TextRange getRangeInElement() { |
| final PsiElement refNameElement = getReferenceNameElement(); |
| if (refNameElement != null) { |
| final int offsetInParent = refNameElement.getStartOffsetInParent(); |
| return new TextRange(offsetInParent, offsetInParent + refNameElement.getTextLength()); |
| } |
| return new TextRange(0, getTextLength()); |
| } |
| |
| public PsiElement handleElementRenameSimple(String newElementName) throws IncorrectOperationException { |
| PsiElement nameElement = getReferenceNameElement(); |
| if (nameElement != null) { |
| ASTNode node = nameElement.getNode(); |
| GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(getProject()); |
| ASTNode newNameNode; |
| try { |
| newNameNode = factory.createReferenceNameFromText(newElementName).getNode(); |
| } |
| catch (IncorrectOperationException e) { |
| newNameNode = factory.createLiteralFromValue(newElementName).getFirstChild().getNode(); |
| } |
| assert newNameNode != null && node != null; |
| getNode().replaceChild(node, newNameNode); |
| } |
| |
| return this; |
| } |
| |
| public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException { |
| return handleElementRenameSimple(newElementName); |
| } |
| |
| public PsiElement bindToElement(@NotNull PsiElement element) throws IncorrectOperationException { |
| if (isReferenceTo(element)) return this; |
| final boolean fullyQualified = isFullyQualified(); |
| final boolean preserveQualification = CodeStyleSettingsManager.getSettings(getProject()).getCustomSettings(GroovyCodeStyleSettings.class).USE_FQ_CLASS_NAMES && fullyQualified; |
| if (element instanceof PsiClass) { |
| final String qualifiedName = ((PsiClass)element).getQualifiedName(); |
| |
| if (!preserveQualification || qualifiedName == null) { |
| final String newName = ((PsiClass)element).getName(); |
| setQualifier(null); |
| final GrReferenceElementImpl newElement = ((GrReferenceElementImpl)handleElementRenameSimple(newName)); |
| |
| if (newElement.isReferenceTo(element) || qualifiedName == null || JavaPsiFacade.getInstance(getProject()).findClass(qualifiedName, getResolveScope()) == null) { |
| return newElement; |
| } |
| } |
| |
| final GrReferenceElement<Q> qualifiedRef = bindWithQualifiedRef(qualifiedName); |
| if (!preserveQualification) { |
| JavaCodeStyleManager.getInstance(getProject()).shortenClassReferences(qualifiedRef); |
| } |
| return qualifiedRef; |
| } |
| else if (element instanceof PsiMember) { |
| PsiMember member = (PsiMember)element; |
| if (!isPhysical()) { |
| // don't qualify reference: the isReferenceTo() check fails anyway, whether we have a static import for this member or not |
| return this; |
| } |
| final PsiClass psiClass = member.getContainingClass(); |
| if (psiClass == null) throw new IncorrectOperationException(); |
| |
| String qName = psiClass.getQualifiedName() + "." + member.getName(); |
| final GrReferenceElement<Q> qualifiedRef = bindWithQualifiedRef(qName); |
| if (!preserveQualification) { |
| JavaCodeStyleManager.getInstance(getProject()).shortenClassReferences(qualifiedRef); |
| } |
| return qualifiedRef; |
| } |
| else if (element instanceof PsiPackage) { |
| return bindWithQualifiedRef(((PsiPackage)element).getQualifiedName()); |
| } |
| |
| throw new IncorrectOperationException("Cannot bind to:" + element + " of class " + element.getClass()); |
| } |
| |
| |
| protected abstract GrReferenceElement<Q> bindWithQualifiedRef(@NotNull String qName); |
| |
| protected boolean bindsCorrectly(PsiElement element) { |
| return isReferenceTo(element); |
| } |
| |
| public abstract boolean isFullyQualified(); |
| |
| @NotNull |
| public PsiType[] getTypeArguments() { |
| final GrTypeArgumentList typeArgsList = getTypeArgumentList(); |
| if (typeArgsList == null) return PsiType.EMPTY_ARRAY; |
| |
| final GrTypeElement[] args = typeArgsList.getTypeArgumentElements(); |
| if (args.length == 0) return PsiType.EMPTY_ARRAY; |
| PsiType[] result = new PsiType[args.length]; |
| for (int i = 0; i < result.length; i++) { |
| result[i] = args[i].getType(); |
| } |
| |
| return result; |
| } |
| |
| @Nullable |
| public GrTypeArgumentList getTypeArgumentList() { |
| return (GrTypeArgumentList)findChildByType(GroovyElementTypes.TYPE_ARGUMENTS); |
| } |
| |
| public void setQualifier(@Nullable Q newQualifier) { |
| PsiImplUtil.setQualifier(this, newQualifier); |
| } |
| |
| public String getClassNameText() { |
| String cachedQName = myCachedQName; |
| if (cachedQName == null) { |
| myCachedQName = cachedQName = PsiNameHelper.getQualifiedClassName(getTextSkipWhiteSpaceAndComments(), false); |
| } |
| return cachedQName; |
| } |
| |
| protected String getTextSkipWhiteSpaceAndComments() { |
| String whiteSpaceAndComments = myCachedTextSkipWhiteSpaceAndComments; |
| if (whiteSpaceAndComments == null) { |
| myCachedTextSkipWhiteSpaceAndComments = whiteSpaceAndComments = PsiImplUtil.getTextSkipWhiteSpaceAndComments(getNode()); |
| } |
| return whiteSpaceAndComments; |
| } |
| |
| public boolean isQualified() { |
| return getQualifier() != null; |
| } |
| } |