| /* |
| * Copyright 2000-2012 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.codeInsight.daemon.impl.quickfix; |
| |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.codeInsight.daemon.QuickFixBundle; |
| import com.intellij.codeInsight.daemon.impl.HighlightInfo; |
| import com.intellij.codeInsight.daemon.impl.analysis.JavaHighlightUtil; |
| import com.intellij.codeInsight.intention.IntentionAction; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.TypeConversionUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Arrays; |
| |
| /** |
| * @author Danila Ponomarenko |
| */ |
| public class RemoveRedundantArgumentsFix implements IntentionAction { |
| private final PsiMethod myTargetMethod; |
| private final PsiExpression[] myArguments; |
| private final PsiSubstitutor mySubstitutor; |
| |
| private RemoveRedundantArgumentsFix(@NotNull PsiMethod targetMethod, |
| @NotNull PsiExpression[] arguments, |
| @NotNull PsiSubstitutor substitutor) { |
| myTargetMethod = targetMethod; |
| myArguments = arguments; |
| mySubstitutor = substitutor; |
| } |
| |
| @NotNull |
| @Override |
| public String getText() { |
| return QuickFixBundle.message("remove.redundant.arguments.text", JavaHighlightUtil.formatMethod(myTargetMethod)); |
| } |
| |
| @NotNull |
| @Override |
| public String getFamilyName() { |
| return QuickFixBundle.message("remove.redundant.arguments.family"); |
| } |
| |
| @Override |
| public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) { |
| if (!myTargetMethod.isValid() || myTargetMethod.getContainingClass() == null) return false; |
| for (PsiExpression expression : myArguments) { |
| if (!expression.isValid()) return false; |
| } |
| if (!mySubstitutor.isValid()) return false; |
| |
| return findRedundantArgument(myArguments, myTargetMethod.getParameterList().getParameters(), mySubstitutor) != null; |
| } |
| |
| @Nullable |
| private static PsiExpression[] findRedundantArgument(@NotNull PsiExpression[] arguments, |
| @NotNull PsiParameter[] parameters, |
| @NotNull PsiSubstitutor substitutor) { |
| if (arguments.length <= parameters.length) return null; |
| |
| for (int i = 0; i < parameters.length; i++) { |
| final PsiExpression argument = arguments[i]; |
| final PsiParameter parameter = parameters[i]; |
| |
| final PsiType argumentType = argument.getType(); |
| if (argumentType == null) return null; |
| final PsiType parameterType = substitutor.substitute(parameter.getType()); |
| |
| if (!TypeConversionUtil.isAssignable(parameterType, argumentType)) { |
| return null; |
| } |
| } |
| |
| return Arrays.copyOfRange(arguments, parameters.length, arguments.length); |
| } |
| |
| @Override |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file) throws IncorrectOperationException { |
| if (!FileModificationService.getInstance().prepareFileForWrite(file)) return; |
| final PsiExpression[] redundantArguments = findRedundantArgument(myArguments, myTargetMethod.getParameterList().getParameters(), mySubstitutor); |
| if (redundantArguments != null) { |
| for (PsiExpression argument : redundantArguments) { |
| argument.delete(); |
| } |
| } |
| } |
| |
| @Override |
| public boolean startInWriteAction() { |
| return true; |
| } |
| |
| public static void registerIntentions(@NotNull JavaResolveResult[] candidates, |
| @NotNull PsiExpressionList arguments, |
| @Nullable HighlightInfo highlightInfo, |
| TextRange fixRange) { |
| for (JavaResolveResult candidate : candidates) { |
| registerIntention(arguments, highlightInfo, fixRange, candidate, arguments); |
| } |
| } |
| |
| private static void registerIntention(@NotNull PsiExpressionList arguments, |
| @Nullable HighlightInfo highlightInfo, |
| TextRange fixRange, |
| @NotNull JavaResolveResult candidate, |
| @NotNull PsiElement context) { |
| if (!candidate.isStaticsScopeCorrect()) return; |
| PsiMethod method = (PsiMethod)candidate.getElement(); |
| PsiSubstitutor substitutor = candidate.getSubstitutor(); |
| if (method != null && context.getManager().isInProject(method)) { |
| QuickFixAction.registerQuickFixAction(highlightInfo, fixRange, new RemoveRedundantArgumentsFix(method, arguments.getExpressions(), substitutor)); |
| } |
| } |
| } |