plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/j2me/MethodCallInLoopConditionInspectionBase.java

/*
 * 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.siyeh.ig.j2me;

import com.intellij.psi.*;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.BaseInspection;
import com.siyeh.ig.BaseInspectionVisitor;
import org.jetbrains.annotations.NotNull;

public class MethodCallInLoopConditionInspectionBase extends BaseInspection {
  @Override
  @NotNull
  public String getDisplayName() {
    return InspectionGadgetsBundle.message("method.call.in.loop.condition.display.name");
  }

  @Override
  @NotNull
  public String buildErrorString(Object... infos) {
    return InspectionGadgetsBundle.message("method.call.in.loop.condition.problem.descriptor");
  }

  @Override
  protected boolean buildQuickFixesOnlyForOnTheFlyErrors() {
    return true;
  }

  @Override
  public BaseInspectionVisitor buildVisitor() {
    return new MethodCallInLoopConditionVisitor();
  }

  private static class MethodCallInLoopConditionVisitor extends BaseInspectionVisitor {

    @Override
    public void visitForStatement(@NotNull PsiForStatement statement) {
      super.visitForStatement(statement);
      final PsiExpression condition = statement.getCondition();
      if (condition == null) {
        return;
      }
      checkForMethodCalls(condition);
    }

    @Override
    public void visitWhileStatement(@NotNull PsiWhileStatement statement) {
      super.visitWhileStatement(statement);
      final PsiExpression condition = statement.getCondition();
      if (condition == null) {
        return;
      }
      checkForMethodCalls(condition);
    }

    @Override
    public void visitDoWhileStatement(@NotNull PsiDoWhileStatement statement) {
      super.visitDoWhileStatement(statement);
      final PsiExpression condition = statement.getCondition();
      if (condition == null) {
        return;
      }
      checkForMethodCalls(condition);
    }

    private void checkForMethodCalls(PsiExpression condition) {
      final PsiElementVisitor visitor = new JavaRecursiveElementVisitor() {

          @Override
          public void visitMethodCallExpression(
            @NotNull PsiMethodCallExpression expression) {
            super.visitMethodCallExpression(expression);
            registerMethodCallError(expression);
          }
        };
      condition.accept(visitor);
    }
  }
}