2016-09-25 13:37:46 -07:00
|
|
|
define(['./_root'], function(root) {
|
|
|
|
|
|
|
|
|
|
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
|
|
|
|
|
var undefined;
|
|
|
|
|
|
|
|
|
|
/** Detect free variable `exports`. */
|
|
|
|
|
var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
|
|
|
|
|
|
|
|
|
|
/** Detect free variable `module`. */
|
|
|
|
|
var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
|
|
|
|
|
|
|
|
|
|
/** Detect the popular CommonJS extension `module.exports`. */
|
|
|
|
|
var moduleExports = freeModule && freeModule.exports === freeExports;
|
|
|
|
|
|
|
|
|
|
/** Built-in value references. */
|
|
|
|
|
var Buffer = moduleExports ? root.Buffer : undefined,
|
|
|
|
|
allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;
|
2015-12-16 17:53:20 -08:00
|
|
|
|
|
|
|
|
/**
|
2016-02-07 23:04:40 -08:00
|
|
|
* Creates a clone of `buffer`.
|
2015-12-16 17:53:20 -08:00
|
|
|
*
|
|
|
|
|
* @private
|
2016-02-07 23:04:40 -08:00
|
|
|
* @param {Buffer} buffer The buffer to clone.
|
|
|
|
|
* @param {boolean} [isDeep] Specify a deep clone.
|
|
|
|
|
* @returns {Buffer} Returns the cloned buffer.
|
2015-12-16 17:53:20 -08:00
|
|
|
*/
|
2016-02-07 23:04:40 -08:00
|
|
|
function cloneBuffer(buffer, isDeep) {
|
|
|
|
|
if (isDeep) {
|
|
|
|
|
return buffer.slice();
|
|
|
|
|
}
|
2016-09-25 13:37:46 -07:00
|
|
|
var length = buffer.length,
|
|
|
|
|
result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
|
|
|
|
|
|
2016-02-07 23:04:40 -08:00
|
|
|
buffer.copy(result);
|
2015-12-16 17:53:20 -08:00
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return cloneBuffer;
|
|
|
|
|
});
|
