/* * 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 com.jetbrains.python.psi; import org.jetbrains.annotations.NotNull; /** * @author yole */ public interface PySequenceExpression extends PyExpression{ @NotNull PyExpression[] getElements(); /** * Calling {@link #getElements()} may take too much time in case of large literals with thousands of elements. If you only need to * know whether collection is empty, use this method instead. * * @return true if sequence expression contains no elements */ boolean isEmpty(); }