| /* |
| * Copyright 2003-2014 Dave Griffith, Bas Leijdekkers |
| * |
| * 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.siyeh.ig.bugs; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.util.IncorrectOperationException; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.InspectionGadgetsFix; |
| import com.siyeh.ig.PsiReplacementUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class StaticFieldReferenceOnSubclassInspection |
| extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getID() { |
| return "StaticFieldReferencedViaSubclass"; |
| } |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "static.field.via.subclass.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String buildErrorString(Object... infos) { |
| final PsiClass declaringClass = (PsiClass)infos[0]; |
| final PsiClass referencedClass = (PsiClass)infos[1]; |
| return InspectionGadgetsBundle.message( |
| "static.field.via.subclass.problem.descriptor", |
| declaringClass.getQualifiedName(), |
| referencedClass.getQualifiedName()); |
| } |
| |
| @Override |
| protected InspectionGadgetsFix buildFix(Object... infos) { |
| return new StaticFieldOnSubclassFix(); |
| } |
| |
| private static class StaticFieldOnSubclassFix extends InspectionGadgetsFix { |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message( |
| "static.field.via.subclass.rationalize.quickfix"); |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) |
| throws IncorrectOperationException { |
| final PsiIdentifier name = |
| (PsiIdentifier)descriptor.getPsiElement(); |
| final PsiReferenceExpression expression = |
| (PsiReferenceExpression)name.getParent(); |
| assert expression != null; |
| final PsiField field = (PsiField)expression.resolve(); |
| assert field != null; |
| PsiReplacementUtil.replaceExpressionWithReferenceTo(expression, field); |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new StaticFieldOnSubclassVisitor(); |
| } |
| |
| private static class StaticFieldOnSubclassVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitReferenceExpression( |
| PsiReferenceExpression expression) { |
| super.visitReferenceExpression(expression); |
| final PsiElement qualifier = expression.getQualifier(); |
| if (!(qualifier instanceof PsiReferenceExpression)) { |
| return; |
| } |
| final PsiElement referent = expression.resolve(); |
| if (!(referent instanceof PsiField)) { |
| return; |
| } |
| final PsiField field = (PsiField)referent; |
| if (!field.hasModifierProperty(PsiModifier.STATIC)) { |
| return; |
| } |
| final PsiElement qualifierReferent = |
| ((PsiReference)qualifier).resolve(); |
| if (!(qualifierReferent instanceof PsiClass)) { |
| return; |
| } |
| final PsiClass referencedClass = (PsiClass)qualifierReferent; |
| final PsiClass declaringClass = field.getContainingClass(); |
| if (declaringClass == null) { |
| return; |
| } |
| if (declaringClass.equals(referencedClass)) { |
| return; |
| } |
| final PsiResolveHelper resolveHelper = JavaPsiFacade.getInstance(expression.getProject()).getResolveHelper(); |
| if (!resolveHelper.isAccessible(declaringClass, expression, null)) { |
| return; |
| } |
| final PsiElement identifier = expression.getReferenceNameElement(); |
| if (identifier == null) { |
| return; |
| } |
| registerError(identifier, declaringClass, referencedClass); |
| } |
| } |
| } |