/*
* 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;
/**
* A flow function receives node assumptions and transforms them according to
* node semantics. Typical flow functions update either outgoing assumptions
* (forward flow) or incoming assumptions (backward flow) but not both.
*
* @param <N> graph node type.
* @param <E> edge type.
* @param <G> graph type.
* @param <A> analysis assumption type.
*/
public interface FlowFunction<N, E, G extends Graph<N, E, ?>,
A extends Assumption<A>> {
/**
* Interpret node by computing new node assumptions from current ones.
*/
void interpret(N node, G g,
AssumptionMap<E, A> assumptionMAp);
}