| /* |
| * Copyright 2009 Google Inc. |
| * |
| * 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.google.gwt.dev.jjs.impl.gflow; |
| |
| /** |
| * Transformation function defines an optional transformation of a graph node |
| * based on node assumptions. |
| * |
| * @param <N> graph node type. |
| * @param <E> graph edge type. |
| * @param <T> graph transformer type. |
| * @param <G> graph type. |
| * @param <A> assumption type. |
| * |
| */ |
| public interface TransformationFunction<N, E, T, G extends Graph<N, E, T>, |
| A extends Assumption<A>> { |
| /** |
| * Gets node transformation for a given node. |
| * @return node transformation or <code>null</code> if no transformation is |
| * necessary. |
| */ |
| Transformation<T, G> transform(N node, G graph, |
| AssumptionMap<E, A> assumptionMap); |
| |
| /** |
| * Transformation defines new subgraph replacement for a node, and |
| * transformation which will be applied during the last (actualizing) step |
| * of analysis. |
| * |
| * @param <T> graph transformer type |
| * @param <G> graph type |
| */ |
| interface Transformation<T, G extends Graph<?, ?, T>> { |
| G getNewSubgraph(); |
| T getGraphTransformer(); |
| } |
| } |