OverridableMethodCallDuringObjectConstructionInspection.java

/*
 * Copyright 2003-2012 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.initialization;

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.InspectionGadgetsFix;
import com.siyeh.ig.fixes.MakeClassFinalFix;
import com.siyeh.ig.psiutils.ClassUtils;
import com.siyeh.ig.psiutils.MethodUtils;
import org.jetbrains.annotations.NotNull;

public class OverridableMethodCallDuringObjectConstructionInspection extends OverridableMethodCallDuringObjectConstructionInspectionBase {

  @Override
  @NotNull
  protected InspectionGadgetsFix[] buildFixes(Object... infos) {
    final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression)infos[0];
    final PsiClass callClass = ClassUtils.getContainingClass(methodCallExpression);
    final PsiMethod method = methodCallExpression.resolveMethod();
    if (method == null) {
      return InspectionGadgetsFix.EMPTY_ARRAY;
    }
    final PsiClass containingClass = method.getContainingClass();
    if (containingClass == null || !containingClass.equals(callClass) || MethodUtils.isOverridden(method)) {
      return InspectionGadgetsFix.EMPTY_ARRAY;
    }
    final String methodName = method.getName();
    return new InspectionGadgetsFix[]{
      new MakeClassFinalFix(containingClass),
      new MakeMethodFinalFix(methodName)
    };
  }

  private static class MakeMethodFinalFix extends InspectionGadgetsFix {

    private final String methodName;

    MakeMethodFinalFix(String methodName) {
      this.methodName = methodName;
    }

    @Override
    @NotNull
    public String getName() {
      return InspectionGadgetsBundle.message("make.method.final.fix.name", methodName);
    }

    @NotNull
    @Override
    public String getFamilyName() {
      return "Make method final";
    }

    @Override
    protected void doFix(Project project, ProblemDescriptor descriptor) throws IncorrectOperationException {
      final PsiElement methodName = descriptor.getPsiElement();
      final PsiElement methodExpression = methodName.getParent();
      final PsiMethodCallExpression methodCall = (PsiMethodCallExpression)methodExpression.getParent();
      final PsiMethod method = methodCall.resolveMethod();
      if (method == null) {
        return;
      }
      final PsiModifierList modifierList = method.getModifierList();
      modifierList.setModifierProperty(PsiModifier.FINAL, true);
    }
  }
}