| /* |
| * 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.functionalParser; |
| |
| import com.intellij.openapi.util.Pair; |
| import com.intellij.util.Function; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.List; |
| |
| /** |
| * @author vlan |
| */ |
| public interface FunctionalParser<R, T> { |
| @NotNull |
| R parse(@NotNull List<Token<T>> tokens) throws ParserException; |
| |
| @NotNull |
| Pair<R, FunctionalParserBase.State> parse(@NotNull List<Token<T>> tokens, |
| @NotNull FunctionalParserBase.State state) throws ParserException; |
| |
| @NotNull |
| <R2> FunctionalParser<Pair<R, R2>, T> then(@NotNull FunctionalParser<R2, T> parser); |
| |
| @NotNull |
| <R2> FunctionalParser<R2, T> skipThen(@NotNull FunctionalParser<R2, T> parser); |
| |
| @NotNull |
| <R2> FunctionalParser<R, T> thenSkip(@NotNull FunctionalParser<R2, T> parser); |
| |
| @NotNull |
| FunctionalParser<R, T> or(@NotNull FunctionalParser<R, T> parser); |
| |
| @NotNull |
| <R2> FunctionalParser<R2, T> map(@NotNull Function<R, R2> f); |
| |
| @NotNull |
| FunctionalParser<R, T> endOfInput(); |
| |
| @NotNull |
| FunctionalParser<R, T> named(@NotNull String name); |
| |
| @NotNull |
| FunctionalParser<R, T> cached(); |
| |
| class State { |
| private final int myPos; |
| private final int myMax; |
| private final Object myKey; |
| |
| State() { |
| myKey = new Object(); |
| myPos = 0; |
| myMax = 0; |
| } |
| |
| State(@NotNull State state, int pos, int max) { |
| myKey = state.myKey; |
| myPos = pos; |
| myMax = max; |
| } |
| |
| public int getPos() { |
| return myPos; |
| } |
| |
| public int getMax() { |
| return myMax; |
| } |
| |
| public Object getKey() { |
| return myKey; |
| } |
| } |
| } |