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Closure Compiler is a JavaScript optimizing compiler. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls. It is used in many of Google's JavaScript apps, including Gmail, Google Web Search, Google Maps, and Google Docs.

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/*
 * Copyright 2014 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.parsing.parser.trees;

import com.google.common.collect.ImmutableList;
import com.google.javascript.jscomp.parsing.parser.util.SourceRange;

public class ComprehensionTree extends ParseTree {
  public static enum ComprehensionType {
    ARRAY,
    GENERATOR
  }

  public final ComprehensionType type;

  // The "for of" and "if" trees.
  public final ImmutableList children;

  // The AssignmentExpression at the end of the ComprehensionTail.
  public final ParseTree tailExpression;

  public ComprehensionTree(
      SourceRange location,
      ComprehensionType type,
      ImmutableList children,
      ParseTree tailExpression) {
    super(ParseTreeType.COMPREHENSION, location);
    this.type = type;
    this.children = children;
    this.tailExpression = tailExpression;
  }
}