python/psi-api/src/com/jetbrains/python/psi/PyBinaryExpression.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.jetbrains.python.psi;

import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.Nullable;

/**
 * @author yole
 */
public interface PyBinaryExpression extends PyQualifiedExpression, PyCallSiteExpression, PyReferenceOwner {
  PyExpression getLeftExpression();
  @Nullable PyExpression getRightExpression();

  @Nullable
  PyElementType getOperator();

  @Nullable
  PsiElement getPsiOperator();

  boolean isOperator(String chars);

  PyExpression getOppositeExpression(PyExpression expression)
      throws IllegalArgumentException;
}