| /* |
| * 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 com.jetbrains.python.refactoring.invertBoolean; |
| |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.psi.*; |
| import com.intellij.psi.search.searches.ReferencesSearch; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.refactoring.BaseRefactoringProcessor; |
| import com.intellij.refactoring.rename.RenameProcessor; |
| import com.intellij.refactoring.rename.RenameUtil; |
| import com.intellij.refactoring.util.MoveRenameUsageInfo; |
| import com.intellij.usageView.UsageInfo; |
| import com.intellij.usageView.UsageViewDescriptor; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.containers.HashMap; |
| import com.jetbrains.python.PyNames; |
| import com.jetbrains.python.PyTokenTypes; |
| import com.jetbrains.python.psi.*; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * User : ktisha |
| */ |
| public class PyInvertBooleanProcessor extends BaseRefactoringProcessor { |
| private PsiElement myElement; |
| private String myNewName; |
| private final RenameProcessor myRenameProcessor; |
| private final Map<UsageInfo, SmartPsiElementPointer> myToInvert = new HashMap<UsageInfo, SmartPsiElementPointer>(); |
| private final SmartPointerManager mySmartPointerManager; |
| |
| public PyInvertBooleanProcessor(@NotNull final PsiElement namedElement, @NotNull final String newName) { |
| super(namedElement.getProject()); |
| myElement = namedElement; |
| myNewName = newName; |
| mySmartPointerManager = SmartPointerManager.getInstance(myProject); |
| myRenameProcessor = new RenameProcessor(myProject, namedElement, newName, false, false); |
| } |
| |
| @Override |
| @NotNull |
| protected UsageViewDescriptor createUsageViewDescriptor(UsageInfo[] usages) { |
| return new PyInvertBooleanUsageViewDescriptor(myElement); |
| } |
| |
| @Override |
| protected boolean preprocessUsages(Ref<UsageInfo[]> refUsages) { |
| if (!myNewName.equals(myElement instanceof PsiNamedElement ? ((PsiNamedElement)myElement).getName() : myElement.getText())) { |
| if (myRenameProcessor.preprocessUsages(refUsages)) { |
| prepareSuccessful(); |
| return true; |
| } |
| return false; |
| } |
| prepareSuccessful(); |
| return true; |
| } |
| |
| @Override |
| @NotNull |
| protected UsageInfo[] findUsages() { |
| final List<SmartPsiElementPointer> toInvert = new ArrayList<SmartPsiElementPointer>(); |
| |
| addRefsToInvert(toInvert, myElement); |
| |
| final UsageInfo[] renameUsages = myRenameProcessor.findUsages(); |
| |
| final Map<PsiElement, UsageInfo> expressionsToUsages = new HashMap<PsiElement, UsageInfo>(); |
| final List<UsageInfo> result = new ArrayList<UsageInfo>(); |
| for (UsageInfo renameUsage : renameUsages) { |
| expressionsToUsages.put(renameUsage.getElement(), renameUsage); |
| result.add(renameUsage); |
| } |
| |
| for (SmartPsiElementPointer pointer : toInvert) { |
| final PyExpression expression = (PyExpression)pointer.getElement(); |
| if (!expressionsToUsages.containsKey(expression) && expression != null) { |
| final UsageInfo usageInfo = new UsageInfo(expression); |
| expressionsToUsages.put(expression, usageInfo); |
| result.add(usageInfo); |
| myToInvert.put(usageInfo, pointer); |
| } else { |
| myToInvert.put(expressionsToUsages.get(expression), pointer); |
| } |
| } |
| |
| return result.toArray(new UsageInfo[result.size()]); |
| } |
| |
| private void addRefsToInvert(@NotNull final List<SmartPsiElementPointer> toInvert, @NotNull final PsiElement psiElement) { |
| final Collection<PsiReference> refs = ReferencesSearch.search(psiElement).findAll(); |
| |
| for (PsiReference ref : refs) { |
| final PsiElement element = ref.getElement(); |
| if (element instanceof PyTargetExpression) { |
| final PyTargetExpression target = (PyTargetExpression)element; |
| final PyAssignmentStatement parent = PsiTreeUtil.getParentOfType(target, PyAssignmentStatement.class); |
| if (parent != null && parent.getTargets().length == 1) { |
| final PyExpression value = parent.getAssignedValue(); |
| if (value != null) |
| toInvert.add(mySmartPointerManager.createSmartPsiElementPointer(value)); |
| } |
| } |
| else if (element.getParent() instanceof PyPrefixExpression) { |
| toInvert.add(mySmartPointerManager.createSmartPsiElementPointer(element.getParent())); |
| } |
| else if (element instanceof PyReferenceExpression) { |
| final PyReferenceExpression refExpr = (PyReferenceExpression)element; |
| toInvert.add(mySmartPointerManager.createSmartPsiElementPointer(refExpr)); |
| } |
| } |
| if (psiElement instanceof PyNamedParameter) { |
| final PyExpression defaultValue = ((PyNamedParameter)psiElement).getDefaultValue(); |
| if (defaultValue != null) |
| toInvert.add(mySmartPointerManager.createSmartPsiElementPointer(defaultValue)); |
| } |
| } |
| |
| @NotNull |
| private static UsageInfo[] extractUsagesForElement(@NotNull final PsiElement element, @NotNull final UsageInfo[] usages) { |
| final ArrayList<UsageInfo> extractedUsages = new ArrayList<UsageInfo>(usages.length); |
| for (UsageInfo usage : usages) { |
| if (usage instanceof MoveRenameUsageInfo) { |
| MoveRenameUsageInfo usageInfo = (MoveRenameUsageInfo)usage; |
| if (element.equals(usageInfo.getReferencedElement())) { |
| extractedUsages.add(usageInfo); |
| } |
| } |
| } |
| return extractedUsages.toArray(new UsageInfo[extractedUsages.size()]); |
| } |
| |
| |
| @Override |
| protected void performRefactoring(UsageInfo[] usages) { |
| for (final PsiElement element : myRenameProcessor.getElements()) { |
| try { |
| RenameUtil.doRename(element, myRenameProcessor.getNewName(element), extractUsagesForElement(element, usages), myProject, null); |
| } |
| catch (final IncorrectOperationException e) { |
| RenameUtil.showErrorMessage(e, element, myProject); |
| return; |
| } |
| } |
| for (UsageInfo usage : usages) { |
| final SmartPsiElementPointer pointerToInvert = myToInvert.get(usage); |
| if (pointerToInvert != null) { |
| PsiElement expression = pointerToInvert.getElement(); |
| if (expression != null && PsiTreeUtil.getParentOfType(expression, PyImportStatementBase.class, false) == null) { |
| final PyExpression replacement = invertExpression(expression); |
| expression.replace(replacement); |
| } |
| } |
| } |
| } |
| |
| @NotNull |
| private PyExpression invertExpression(@NotNull final PsiElement expression) { |
| final PyElementGenerator elementGenerator = PyElementGenerator.getInstance(myProject); |
| if (expression instanceof PyBoolLiteralExpression) { |
| final String value = ((PyBoolLiteralExpression)expression).getValue() ? PyNames.FALSE : PyNames.TRUE; |
| return elementGenerator.createExpressionFromText(LanguageLevel.forElement(expression), value); |
| } |
| if (expression instanceof PyReferenceExpression && (PyNames.FALSE.equals(expression.getText()) || |
| PyNames.TRUE.equals(expression.getText()))) { |
| |
| final String value = PyNames.TRUE.equals(expression.getText()) ? PyNames.FALSE : PyNames.TRUE; |
| return elementGenerator.createExpressionFromText(LanguageLevel.forElement(expression), value); |
| } |
| else if (expression instanceof PyPrefixExpression) { |
| if (((PyPrefixExpression)expression).getOperator() == PyTokenTypes.NOT_KEYWORD) { |
| final PyExpression operand = ((PyPrefixExpression)expression).getOperand(); |
| if (operand != null) |
| return elementGenerator.createExpressionFromText(LanguageLevel.forElement(expression), operand.getText()); |
| } |
| } |
| return elementGenerator.createExpressionFromText(LanguageLevel.forElement(expression), "not " + expression.getText()); |
| } |
| |
| @Override |
| protected String getCommandName() { |
| return PyInvertBooleanHandler.REFACTORING_NAME; |
| } |
| } |