| /* |
| * 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.types; |
| |
| import com.jetbrains.python.psi.PyClass; |
| import com.jetbrains.python.psi.PyExpression; |
| import com.jetbrains.python.psi.PySequenceExpression; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author yole |
| */ |
| public class PyLiteralCollectionType extends PyClassTypeImpl implements PyCollectionType { |
| private final PySequenceExpression mySequence; |
| |
| public PyLiteralCollectionType(@NotNull PyClass source, boolean isDefinition, PySequenceExpression sequence) { |
| super(source, isDefinition); |
| mySequence = sequence; |
| } |
| |
| @Override |
| public PyType getElementType(@NotNull TypeEvalContext context) { |
| final PyExpression[] elements = mySequence.getElements(); |
| if (elements.length == 0 || elements.length > 10 /* performance */) { |
| return null; |
| } |
| PyType result = context.getType(elements [0]); |
| if (result == null) { |
| return null; |
| } |
| for (int i = 1; i < elements.length; i++) { |
| PyType elementType = context.getType(elements[i]); |
| if (elementType == null || !elementType.equals(result)) { |
| return null; |
| } |
| } |
| return result; |
| } |
| } |