code: function getDependencies( code ) {
  	var cache = Object.create( null );
  	var deps = [];
  
  	function addDependency( dep ) {
  		if ( ! cache[ dep ] ) {
  			cache[ dep ] = true;
  			deps.push( dep );
  		}
  	}
  
  	code
  		.replace( replacePatterns.BLOCK_COMMENT_RE, '' )
  		.replace( replacePatterns.LINE_COMMENT_RE, '' )
  		.replace( replacePatterns.IMPORT_RE, function( match, pre, quot, dep ) {
  			addDependency( dep );
  			return match;
  		} )
  		.replace( replacePatterns.EXPORT_RE, function( match, pre, quot, dep ) {
  			addDependency( dep );
  			return match;
  		} )
  		.replace( replacePatterns.REQUIRE_RE, function( match, pre, quot, dep ) {
  			addDependency( dep );
  		} );
  
  	return deps;
  }
docs: Extract all required modules from a `code` string.
  Copyright (c) 2014-present, Facebook, Inc. See CREDITS.md#facebook/node-haste
  
  @param {string} code The source code string to parse
  @returns {array} An array of required modules, if any