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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. This binary checks for style issues such as incorrect or missing JSDoc usage, and missing goog.require() statements. It does not do more advanced checks such as typechecking.

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/*
 * Copyright 2016 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.javascript.jscomp.parsing.parser.Token;
import com.google.javascript.jscomp.parsing.parser.util.SourceRange;

/**
 * Represents UpdateExpression productions from the spec.
 *
 * 

 * UpdateExpression :=
 *     { ++ | -- } UnaryExpression
 *     LeftHandSideExpression [no LineTerminator here] { ++ | -- }
 * 
*/ public class UpdateExpressionTree extends ParseTree { /** * Position of the operator relative to the operand. */ public enum OperatorPosition { PREFIX, POSTFIX; } public final Token operator; public final OperatorPosition operatorPosition; public final ParseTree operand; public UpdateExpressionTree( SourceRange location, Token operator, OperatorPosition operatorPosition, ParseTree operand) { super(ParseTreeType.UPDATE_EXPRESSION, location); this.operator = operator; this.operatorPosition = operatorPosition; this.operand = operand; } public static UpdateExpressionTree prefix( SourceRange location, Token operator, ParseTree operand) { return new UpdateExpressionTree(location, operator, OperatorPosition.PREFIX, operand); } public static UpdateExpressionTree postfix( SourceRange location, Token operator, ParseTree operand) { return new UpdateExpressionTree(location, operator, OperatorPosition.POSTFIX, operand); } }




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