com.google.gwt.dev.jjs.impl.gflow.unreachable.UnreachableAssumptions Maven / Gradle / Ivy
/*
* Copyright 2008 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.unreachable;
import com.google.gwt.dev.jjs.impl.gflow.Assumption;
/**
*
*/
public class UnreachableAssumptions implements Assumption {
public static final UnreachableAssumptions REACHABLE = new UnreachableAssumptions();
public static final UnreachableAssumptions UNREACHABLE = new UnreachableAssumptions();
public static boolean isReachable(UnreachableAssumptions in) {
return in == REACHABLE;
}
@Override
public UnreachableAssumptions join(UnreachableAssumptions value) {
if (this == REACHABLE || value == REACHABLE) {
return REACHABLE;
}
return UNREACHABLE;
}
@Override
public String toString() {
return this == REACHABLE ? "T" : "F";
}
}