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A packaging of the IntelliJ Community Edition java-analysis-impl library. This is release number 1 of trunk branch 142.

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/*
 * Copyright 2003-2010 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.internationalization;

import com.intellij.psi.CommonClassNames;
import com.intellij.psi.PsiExpressionList;
import com.intellij.psi.PsiMethodCallExpression;
import com.intellij.psi.PsiType;
import com.siyeh.HardcodedMethodConstants;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.BaseInspection;
import com.siyeh.ig.BaseInspectionVisitor;
import com.siyeh.ig.psiutils.MethodCallUtils;
import com.siyeh.ig.psiutils.TypeUtils;
import org.jetbrains.annotations.NotNull;

public class DateToStringInspection extends BaseInspection {

  @Override
  @NotNull
  public String getID() {
    return "CallToDateToString";
  }

  @Override
  @NotNull
  public String getDisplayName() {
    return InspectionGadgetsBundle.message(
      "call.to.date.tostring.display.name");
  }

  @Override
  @NotNull
  public String buildErrorString(Object... infos) {
    return InspectionGadgetsBundle.message(
      "call.to.date.tostring.problem.descriptor");
  }

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

  private static class DateToStringVisitor extends BaseInspectionVisitor {

    @Override
    public void visitMethodCallExpression(
      @NotNull PsiMethodCallExpression expression) {
      super.visitMethodCallExpression(expression);
      final String methodName = MethodCallUtils.getMethodName(expression);
      if (!HardcodedMethodConstants.TO_STRING.equals(methodName)) {
        return;
      }
      final PsiType targetType = MethodCallUtils.getTargetType(expression);
      if (!TypeUtils.typeEquals(CommonClassNames.JAVA_UTIL_DATE,
                                targetType)) {
        return;
      }
      final PsiExpressionList argumentList = expression.getArgumentList();
      if (argumentList.getExpressions().length != 0) {
        return;
      }
      if (NonNlsUtils.isNonNlsAnnotatedUse(expression)) {
        return;
      }
      registerMethodCallError(expression);
    }
  }
}