com.google.javascript.jscomp.fuzzing.ExistingIdentifierFuzzer.java Source code

Introduction

Here is the source code for com.google.javascript.jscomp.fuzzing.ExistingIdentifierFuzzer.java

Source

/*
 * 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.common.base.Preconditions;
import com.google.javascript.rhino.Node;
import com.google.javascript.rhino.Token;

import java.util.Set;

/**
 * UNDER DEVELOPMENT. DO NOT USE!
 */
class ExistingIdentifierFuzzer extends AbstractFuzzer {
    Type type;
    boolean excludeExterns;

    ExistingIdentifierFuzzer(FuzzingContext context) {
        super(context);
    }

    ExistingIdentifierFuzzer(FuzzingContext context, Type type, boolean excludeExterns) {
        super(context);
        this.type = type;
        this.excludeExterns = excludeExterns;
    }

    /* (non-Javadoc)
     * @see com.google.javascript.jscomp.fuzzing.AbstractFuzzer#generate(int)
     */
    @Override
    protected Node generate(int budget, Set<Type> types) {
        Preconditions.checkState(isEnough(1), "No symbol defined.");
        int flags = 0;
        if (excludeExterns) {
            flags = ScopeManager.EXCLUDE_EXTERNS;
        }
        return Node.newString(Token.NAME, context.scopeManager.getRandomSymbol(type, flags).name);
    }

    /* (non-Javadoc)
     * @see com.google.javascript.jscomp.fuzzing.AbstractFuzzer#isEnough(int)
     */
    @Override
    protected boolean isEnough(int budget) {
        return (context.scopeManager.getSize() > 0 || !excludeExterns) && budget >= 1;
    }

    /* (non-Javadoc)
     * @see com.google.javascript.jscomp.fuzzing.AbstractFuzzer#getConfigName()
     */
    @Override
    protected String getConfigName() {
        return "existingIdentifier";
    }

}