/*
* Copyright 2000-2015 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 org.jetbrains.annotations.NotNull;
/**
* Project service to cache {@link TypeEvalContext}
* @author Ilya.Kazakevich
*/
public interface TypeEvalContextCache {
/**
* Returns context from cache (if exist) or returns the one you provided (and puts it into cache).
* To use this method, do the following:
* <ol>
* <li>Instantiate {@link TypeEvalContext} you want to use</li>
* <li>Pass its instance here as argument</li>
* <li>Use result</li>
* </ol>
*
* @param standard context you want to use. Just instantiate it and pass here.
* @return context from cache (the one equals by constraints to yours or the one you provided)
*/
@NotNull
TypeEvalContext getContext(@NotNull TypeEvalContext standard);
}