| /* |
| * 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.intellij.codeInspection.accessStaticViaInstance; |
| |
| import com.intellij.codeInsight.daemon.JavaErrorMessages; |
| import com.intellij.codeInsight.daemon.impl.analysis.HighlightMessageUtil; |
| import com.intellij.codeInsight.daemon.impl.analysis.JavaHighlightUtil; |
| import com.intellij.codeInsight.daemon.impl.quickfix.RemoveUnusedVariableUtil; |
| import com.intellij.codeInspection.*; |
| import com.intellij.psi.*; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.ArrayList; |
| |
| public class AccessStaticViaInstanceBase extends BaseJavaBatchLocalInspectionTool implements CleanupLocalInspectionTool { |
| @NonNls public static final String ACCESS_STATIC_VIA_INSTANCE = "AccessStaticViaInstance"; |
| |
| @Override |
| @NotNull |
| public String getGroupDisplayName() { |
| return ""; |
| } |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionsBundle.message("access.static.via.instance"); |
| } |
| |
| @Override |
| @NotNull |
| @NonNls |
| public String getShortName() { |
| return ACCESS_STATIC_VIA_INSTANCE; |
| } |
| |
| @Override |
| public String getAlternativeID() { |
| return "static-access"; |
| } |
| |
| @Override |
| public boolean isEnabledByDefault() { |
| return true; |
| } |
| |
| @Override |
| @NotNull |
| public PsiElementVisitor buildVisitor(@NotNull final ProblemsHolder holder, final boolean isOnTheFly) { |
| return new JavaElementVisitor() { |
| @Override public void visitReferenceExpression(PsiReferenceExpression expression) { |
| checkAccessStaticMemberViaInstanceReference(expression, holder, isOnTheFly); |
| } |
| }; |
| } |
| |
| private void checkAccessStaticMemberViaInstanceReference(PsiReferenceExpression expr, ProblemsHolder holder, boolean onTheFly) { |
| JavaResolveResult result = expr.advancedResolve(false); |
| PsiElement resolved = result.getElement(); |
| |
| if (!(resolved instanceof PsiMember)) return; |
| PsiExpression qualifierExpression = expr.getQualifierExpression(); |
| if (qualifierExpression == null) return; |
| |
| if (qualifierExpression instanceof PsiReferenceExpression) { |
| final PsiElement qualifierResolved = ((PsiReferenceExpression)qualifierExpression).resolve(); |
| if (qualifierResolved instanceof PsiClass || qualifierResolved instanceof PsiPackage) { |
| return; |
| } |
| } |
| if (!((PsiMember)resolved).hasModifierProperty(PsiModifier.STATIC)) return; |
| |
| String description = JavaErrorMessages.message("static.member.accessed.via.instance.reference", |
| JavaHighlightUtil.formatType(qualifierExpression.getType()), |
| HighlightMessageUtil.getSymbolName(resolved, result.getSubstitutor())); |
| if (!onTheFly) { |
| if (RemoveUnusedVariableUtil.checkSideEffects(qualifierExpression, null, new ArrayList<PsiElement>())) { |
| holder.registerProblem(expr, description); |
| return; |
| } |
| } |
| holder.registerProblem(expr, description, createAccessStaticViaInstanceFix(expr, onTheFly, result)); |
| } |
| |
| protected LocalQuickFix createAccessStaticViaInstanceFix(PsiReferenceExpression expr, |
| boolean onTheFly, |
| JavaResolveResult result) { |
| return null; |
| } |
| } |