com.google.javascript.jscomp.js.util.global.js Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of closure-compiler-linter Show documentation

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.

There is a newer version: v20200830

Show newest version

/*
 * 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.
 */

/**
 * @fileoverview Runtime code to store the global object.
 */
'require base';


/**
 * @param {!Object} maybeGlobal
 * @return {!Object} The global object.
 * @suppress {undefinedVars|reportUnknownTypes}
 */
$jscomp.getGlobal = function(maybeGlobal) {
  // This logic can be simplified to be made more optimizable.
  return (typeof window != 'undefined' && window === maybeGlobal) ?
      maybeGlobal :
      (typeof global != 'undefined' && global != null) ?
      /** @type {!Object} */ (global) :
      maybeGlobal;
};


// TODO(sdh): This should be typed as "the global object" now that the type
// of "Global" has landed in the type system.
/**
 * The global object. For browsers we could just use `this` but in Node that
 * doesn't work.
 * @const {?}
 */
$jscomp.global = $jscomp.getGlobal(this);