/*
* Copyright 2013 The Closure Compiler Authors.
*
* 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.javascript.jscomp.fuzzing;
import com.google.javascript.rhino.Node;
import com.google.javascript.rhino.Token;
import java.util.Set;
/**
* UNDER DEVELOPMENT. DO NOT USE!
*/
class ContinueFuzzer extends AbstractFuzzer {
ContinueFuzzer(FuzzingContext context) {
super(context);
}
/* (non-Javadoc)
* @see com.google.javascript.jscomp.fuzzing.AbstractFuzzer#isEnough(int)
*/
@Override
protected boolean isEnough(int budget) {
Scope scope = context.scopeManager.localScope();
if (scope.loopNesting > 0) {
return budget >= 1;
} else {
return false;
}
}
/* (non-Javadoc)
* @see com.google.javascript.jscomp.fuzzing.AbstractFuzzer#generate(int)
*/
@Override
protected Node generate(int budget, Set<Type> types) {
Node node = new Node(Token.CONTINUE);
Scope localScope = context.scopeManager.localScope();
double toLabel = getOwnConfig().get("toLabel").getAsDouble();
if (budget > 1 && !localScope.loopLabels.isEmpty()
&& context.random.nextDouble() < toLabel) {
node.addChildToBack(
Node.newString(Token.LABEL_NAME,
localScope.randomLabelForContinue(context.random)));
}
return node;
}
/* (non-Javadoc)
* @see com.google.javascript.jscomp.fuzzing.AbstractFuzzer#getConfigName()
*/
@Override
protected String getConfigName() {
return "continue";
}
}