plugins/groovy/src/org/jetbrains/plugins/groovy/intentions/control/ComparisonPredicate.java

/*
 * Copyright 2000-2014 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 org.jetbrains.plugins.groovy.intentions.control;

import com.intellij.psi.PsiElement;
import org.jetbrains.plugins.groovy.lang.psi.util.ErrorUtil;
import org.jetbrains.plugins.groovy.intentions.base.PsiElementPredicate;
import org.jetbrains.plugins.groovy.lang.psi.impl.utils.ComparisonUtils;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrBinaryExpression;

class ComparisonPredicate implements PsiElementPredicate {

  @Override
  public boolean satisfiedBy(PsiElement element) {
    if (!(element instanceof GrBinaryExpression)) {
      return false;
    }
    final GrBinaryExpression expression = (GrBinaryExpression) element;
    if (!ComparisonUtils.isComparison(expression)) {
      return false;
    }
    if (expression.getRightOperand() == null) return false;
    return !ErrorUtil.containsError(element);
  }
}