fune/devtools/client/shared/source-map/index.js

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/***/ 14:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.stopSourceMapWorker = exports.startSourceMapWorker = exports.isOriginalId = exports.isGeneratedId = exports.generatedToOriginalId = exports.originalToGeneratedId = exports.getOriginalStackFrames = exports.hasMappedSource = exports.clearSourceMaps = exports.applySourceMap = exports.getOriginalSourceText = exports.getLocationScopes = exports.getFileGeneratedRange = exports.getOriginalLocation = exports.getAllGeneratedLocations = exports.getGeneratedLocation = exports.getGeneratedRanges = exports.getOriginalRanges = exports.hasOriginalURL = exports.getOriginalURLs = exports.setAssetRootURL = exports.dispatcher = undefined;

var _utils = __webpack_require__(69);

Object.defineProperty(exports, "originalToGeneratedId", {
  enumerable: true,
  get: function () {
    return _utils.originalToGeneratedId;
  }
});
Object.defineProperty(exports, "generatedToOriginalId", {
  enumerable: true,
  get: function () {
    return _utils.generatedToOriginalId;
  }
});
Object.defineProperty(exports, "isGeneratedId", {
  enumerable: true,
  get: function () {
    return _utils.isGeneratedId;
  }
});
Object.defineProperty(exports, "isOriginalId", {
  enumerable: true,
  get: function () {
    return _utils.isOriginalId;
  }
});

var _devtoolsSourceMap = __webpack_require__(14);

var self = _interopRequireWildcard(_devtoolsSourceMap);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

const {
  workerUtils: { WorkerDispatcher }
} = __webpack_require__(16);

const dispatcher = exports.dispatcher = new WorkerDispatcher();

const _getGeneratedRanges = dispatcher.task("getGeneratedRanges", {
  queue: true
});

const _getGeneratedLocation = dispatcher.task("getGeneratedLocation", {
  queue: true
});
const _getAllGeneratedLocations = dispatcher.task("getAllGeneratedLocations", {
  queue: true
});

const setAssetRootURL = exports.setAssetRootURL = async assetRoot => dispatcher.invoke("setAssetRootURL", assetRoot);

const getOriginalURLs = exports.getOriginalURLs = async generatedSource => dispatcher.invoke("getOriginalURLs", generatedSource);

const hasOriginalURL = exports.hasOriginalURL = async url => dispatcher.invoke("hasOriginalURL", url);

const getOriginalRanges = exports.getOriginalRanges = async (sourceId, url) => dispatcher.invoke("getOriginalRanges", sourceId, url);
const getGeneratedRanges = exports.getGeneratedRanges = async (location, originalSource) => _getGeneratedRanges(location, originalSource);

const getGeneratedLocation = exports.getGeneratedLocation = async (location, originalSource) => _getGeneratedLocation(location, originalSource);

const getAllGeneratedLocations = exports.getAllGeneratedLocations = async (location, originalSource) => _getAllGeneratedLocations(location, originalSource);

const getOriginalLocation = exports.getOriginalLocation = async (location, options = {}) => dispatcher.invoke("getOriginalLocation", location, options);

const getFileGeneratedRange = exports.getFileGeneratedRange = async originalSource => dispatcher.invoke("getFileGeneratedRange", originalSource);

const getLocationScopes = exports.getLocationScopes = dispatcher.task("getLocationScopes");

const getOriginalSourceText = exports.getOriginalSourceText = async originalSource => dispatcher.invoke("getOriginalSourceText", originalSource);

const applySourceMap = exports.applySourceMap = async (generatedId, url, code, mappings) => dispatcher.invoke("applySourceMap", generatedId, url, code, mappings);

const clearSourceMaps = exports.clearSourceMaps = async () => dispatcher.invoke("clearSourceMaps");

const hasMappedSource = exports.hasMappedSource = async location => dispatcher.invoke("hasMappedSource", location);

const getOriginalStackFrames = exports.getOriginalStackFrames = async generatedLocation => dispatcher.invoke("getOriginalStackFrames", generatedLocation);

const startSourceMapWorker = exports.startSourceMapWorker = (url, assetRoot) => {
  dispatcher.start(url);
  setAssetRootURL(assetRoot);
};
const stopSourceMapWorker = exports.stopSourceMapWorker = dispatcher.stop.bind(dispatcher);

exports.default = self;

/***/ }),

/***/ 16:
/***/ (function(module, exports, __webpack_require__) {

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

const networkRequest = __webpack_require__(27);
const workerUtils = __webpack_require__(28);

module.exports = {
  networkRequest,
  workerUtils
};

/***/ }),

/***/ 27:
/***/ (function(module, exports) {

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

function networkRequest(url, opts) {
  return fetch(url, {
    cache: opts.loadFromCache ? "default" : "no-cache"
  }).then(res => {
    if (res.status >= 200 && res.status < 300) {
      if (res.headers.get("Content-Type") === "application/wasm") {
        return res.arrayBuffer().then(buffer => ({
          content: buffer,
          isDwarf: true
        }));
      }
      return res.text().then(text => ({ content: text }));
    }
    return Promise.reject(`request failed with status ${res.status}`);
  });
}

module.exports = networkRequest;

/***/ }),

/***/ 28:
/***/ (function(module, exports) {

function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }

function WorkerDispatcher() {
  this.msgId = 1;
  this.worker = null;
} /* This Source Code Form is subject to the terms of the Mozilla Public
   * License, v. 2.0. If a copy of the MPL was not distributed with this
   * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

WorkerDispatcher.prototype = {
  start(url, win = window) {
    this.worker = new win.Worker(url);
    this.worker.onerror = () => {
      console.error(`Error in worker ${url}`);
    };
  },

  stop() {
    if (!this.worker) {
      return;
    }

    this.worker.terminate();
    this.worker = null;
  },

  task(method, { queue = false } = {}) {
    const calls = [];
    const push = args => {
      return new Promise((resolve, reject) => {
        if (queue && calls.length === 0) {
          Promise.resolve().then(flush);
        }

        calls.push([args, resolve, reject]);

        if (!queue) {
          flush();
        }
      });
    };

    const flush = () => {
      const items = calls.slice();
      calls.length = 0;

      if (!this.worker) {
        return;
      }

      const id = this.msgId++;
      this.worker.postMessage({
        id,
        method,
        calls: items.map(item => item[0])
      });

      const listener = ({ data: result }) => {
        if (result.id !== id) {
          return;
        }

        if (!this.worker) {
          return;
        }

        this.worker.removeEventListener("message", listener);

        result.results.forEach((resultData, i) => {
          const [, resolve, reject] = items[i];

          if (resultData.error) {
            reject(resultData.error);
          } else {
            resolve(resultData.response);
          }
        });
      };

      this.worker.addEventListener("message", listener);
    };

    return (...args) => push(args);
  },

  invoke(method, ...args) {
    return this.task(method)(...args);
  }
};

function workerHandler(publicInterface) {
  return function (msg) {
    const { id, method, calls } = msg.data;

    Promise.all(calls.map(args => {
      try {
        const response = publicInterface[method].apply(undefined, args);
        if (response instanceof Promise) {
          return response.then(val => ({ response: val }),
          // Error can't be sent via postMessage, so be sure to
          // convert to string.
          err => ({ error: err.toString() }));
        }
        return { response };
      } catch (error) {
        // Error can't be sent via postMessage, so be sure to convert to
        // string.
        return { error: error.toString() };
      }
    })).then(results => {
      self.postMessage({ id, results });
    });
  };
}

function streamingWorkerHandler(publicInterface, { timeout = 100 } = {}, worker = self) {
  let streamingWorker = (() => {
    var _ref = _asyncToGenerator(function* (id, tasks) {
      let isWorking = true;

      const timeoutId = setTimeout(function () {
        isWorking = false;
      }, timeout);

      const results = [];
      while (tasks.length !== 0 && isWorking) {
        const { callback, context, args } = tasks.shift();
        const result = yield callback.call(context, args);
        results.push(result);
      }
      worker.postMessage({ id, status: "pending", data: results });
      clearTimeout(timeoutId);

      if (tasks.length !== 0) {
        yield streamingWorker(id, tasks);
      }
    });

    return function streamingWorker(_x, _x2) {
      return _ref.apply(this, arguments);
    };
  })();

  return (() => {
    var _ref2 = _asyncToGenerator(function* (msg) {
      const { id, method, args } = msg.data;
      const workerMethod = publicInterface[method];
      if (!workerMethod) {
        console.error(`Could not find ${method} defined in worker.`);
      }
      worker.postMessage({ id, status: "start" });

      try {
        const tasks = workerMethod(args);
        yield streamingWorker(id, tasks);
        worker.postMessage({ id, status: "done" });
      } catch (error) {
        worker.postMessage({ id, status: "error", error });
      }
    });

    return function (_x3) {
      return _ref2.apply(this, arguments);
    };
  })();
}

module.exports = {
  WorkerDispatcher,
  workerHandler,
  streamingWorkerHandler
};

/***/ }),

/***/ 51:
/***/ (function(module, exports) {

var charenc = {
  // UTF-8 encoding
  utf8: {
    // Convert a string to a byte array
    stringToBytes: function(str) {
      return charenc.bin.stringToBytes(unescape(encodeURIComponent(str)));
    },

    // Convert a byte array to a string
    bytesToString: function(bytes) {
      return decodeURIComponent(escape(charenc.bin.bytesToString(bytes)));
    }
  },

  // Binary encoding
  bin: {
    // Convert a string to a byte array
    stringToBytes: function(str) {
      for (var bytes = [], i = 0; i < str.length; i++)
        bytes.push(str.charCodeAt(i) & 0xFF);
      return bytes;
    },

    // Convert a byte array to a string
    bytesToString: function(bytes) {
      for (var str = [], i = 0; i < bytes.length; i++)
        str.push(String.fromCharCode(bytes[i]));
      return str.join('');
    }
  }
};

module.exports = charenc;


/***/ }),

/***/ 69:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

const md5 = __webpack_require__(80);

function originalToGeneratedId(originalId) {
  const match = originalId.match(/(.*)\/originalSource/);
  return match ? match[1] : "";
}

function generatedToOriginalId(generatedId, url) {
  return `${generatedId}/originalSource-${md5(url)}`;
}

function isOriginalId(id) {
  return (/\/originalSource/.test(id)
  );
}

function isGeneratedId(id) {
  return !isOriginalId(id);
}

/**
 * Trims the query part or reference identifier of a URL string, if necessary.
 */
function trimUrlQuery(url) {
  const length = url.length;
  const q1 = url.indexOf("?");
  const q2 = url.indexOf("&");
  const q3 = url.indexOf("#");
  const q = Math.min(q1 != -1 ? q1 : length, q2 != -1 ? q2 : length, q3 != -1 ? q3 : length);

  return url.slice(0, q);
}

// Map suffix to content type.
const contentMap = {
  js: "text/javascript",
  jsm: "text/javascript",
  mjs: "text/javascript",
  ts: "text/typescript",
  tsx: "text/typescript-jsx",
  jsx: "text/jsx",
  vue: "text/vue",
  coffee: "text/coffeescript",
  elm: "text/elm",
  cljc: "text/x-clojure",
  cljs: "text/x-clojurescript"
};

/**
 * Returns the content type for the specified URL.  If no specific
 * content type can be determined, "text/plain" is returned.
 *
 * @return String
 *         The content type.
 */
function getContentType(url) {
  url = trimUrlQuery(url);
  const dot = url.lastIndexOf(".");
  if (dot >= 0) {
    const name = url.substring(dot + 1);
    if (name in contentMap) {
      return contentMap[name];
    }
  }
  return "text/plain";
}

module.exports = {
  originalToGeneratedId,
  generatedToOriginalId,
  isOriginalId,
  isGeneratedId,
  getContentType,
  contentMapForTesting: contentMap
};

/***/ }),

/***/ 760:
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(14);


/***/ }),

/***/ 80:
/***/ (function(module, exports, __webpack_require__) {

(function(){
  var crypt = __webpack_require__(81),
      utf8 = __webpack_require__(51).utf8,
      isBuffer = __webpack_require__(82),
      bin = __webpack_require__(51).bin,

  // The core
  md5 = function (message, options) {
    // Convert to byte array
    if (message.constructor == String)
      if (options && options.encoding === 'binary')
        message = bin.stringToBytes(message);
      else
        message = utf8.stringToBytes(message);
    else if (isBuffer(message))
      message = Array.prototype.slice.call(message, 0);
    else if (!Array.isArray(message))
      message = message.toString();
    // else, assume byte array already

    var m = crypt.bytesToWords(message),
        l = message.length * 8,
        a =  1732584193,
        b = -271733879,
        c = -1732584194,
        d =  271733878;

    // Swap endian
    for (var i = 0; i < m.length; i++) {
      m[i] = ((m[i] <<  8) | (m[i] >>> 24)) & 0x00FF00FF |
             ((m[i] << 24) | (m[i] >>>  8)) & 0xFF00FF00;
    }

    // Padding
    m[l >>> 5] |= 0x80 << (l % 32);
    m[(((l + 64) >>> 9) << 4) + 14] = l;

    // Method shortcuts
    var FF = md5._ff,
        GG = md5._gg,
        HH = md5._hh,
        II = md5._ii;

    for (var i = 0; i < m.length; i += 16) {

      var aa = a,
          bb = b,
          cc = c,
          dd = d;

      a = FF(a, b, c, d, m[i+ 0],  7, -680876936);
      d = FF(d, a, b, c, m[i+ 1], 12, -389564586);
      c = FF(c, d, a, b, m[i+ 2], 17,  606105819);
      b = FF(b, c, d, a, m[i+ 3], 22, -1044525330);
      a = FF(a, b, c, d, m[i+ 4],  7, -176418897);
      d = FF(d, a, b, c, m[i+ 5], 12,  1200080426);
      c = FF(c, d, a, b, m[i+ 6], 17, -1473231341);
      b = FF(b, c, d, a, m[i+ 7], 22, -45705983);
      a = FF(a, b, c, d, m[i+ 8],  7,  1770035416);
      d = FF(d, a, b, c, m[i+ 9], 12, -1958414417);
      c = FF(c, d, a, b, m[i+10], 17, -42063);
      b = FF(b, c, d, a, m[i+11], 22, -1990404162);
      a = FF(a, b, c, d, m[i+12],  7,  1804603682);
      d = FF(d, a, b, c, m[i+13], 12, -40341101);
      c = FF(c, d, a, b, m[i+14], 17, -1502002290);
      b = FF(b, c, d, a, m[i+15], 22,  1236535329);

      a = GG(a, b, c, d, m[i+ 1],  5, -165796510);
      d = GG(d, a, b, c, m[i+ 6],  9, -1069501632);
      c = GG(c, d, a, b, m[i+11], 14,  643717713);
      b = GG(b, c, d, a, m[i+ 0], 20, -373897302);
      a = GG(a, b, c, d, m[i+ 5],  5, -701558691);
      d = GG(d, a, b, c, m[i+10],  9,  38016083);
      c = GG(c, d, a, b, m[i+15], 14, -660478335);
      b = GG(b, c, d, a, m[i+ 4], 20, -405537848);
      a = GG(a, b, c, d, m[i+ 9],  5,  568446438);
      d = GG(d, a, b, c, m[i+14],  9, -1019803690);
      c = GG(c, d, a, b, m[i+ 3], 14, -187363961);
      b = GG(b, c, d, a, m[i+ 8], 20,  1163531501);
      a = GG(a, b, c, d, m[i+13],  5, -1444681467);
      d = GG(d, a, b, c, m[i+ 2],  9, -51403784);
      c = GG(c, d, a, b, m[i+ 7], 14,  1735328473);
      b = GG(b, c, d, a, m[i+12], 20, -1926607734);

      a = HH(a, b, c, d, m[i+ 5],  4, -378558);
      d = HH(d, a, b, c, m[i+ 8], 11, -2022574463);
      c = HH(c, d, a, b, m[i+11], 16,  1839030562);
      b = HH(b, c, d, a, m[i+14], 23, -35309556);
      a = HH(a, b, c, d, m[i+ 1],  4, -1530992060);
      d = HH(d, a, b, c, m[i+ 4], 11,  1272893353);
      c = HH(c, d, a, b, m[i+ 7], 16, -155497632);
      b = HH(b, c, d, a, m[i+10], 23, -1094730640);
      a = HH(a, b, c, d, m[i+13],  4,  681279174);
      d = HH(d, a, b, c, m[i+ 0], 11, -358537222);
      c = HH(c, d, a, b, m[i+ 3], 16, -722521979);
      b = HH(b, c, d, a, m[i+ 6], 23,  76029189);
      a = HH(a, b, c, d, m[i+ 9],  4, -640364487);
      d = HH(d, a, b, c, m[i+12], 11, -421815835);
      c = HH(c, d, a, b, m[i+15], 16,  530742520);
      b = HH(b, c, d, a, m[i+ 2], 23, -995338651);

      a = II(a, b, c, d, m[i+ 0],  6, -198630844);
      d = II(d, a, b, c, m[i+ 7], 10,  1126891415);
      c = II(c, d, a, b, m[i+14], 15, -1416354905);
      b = II(b, c, d, a, m[i+ 5], 21, -57434055);
      a = II(a, b, c, d, m[i+12],  6,  1700485571);
      d = II(d, a, b, c, m[i+ 3], 10, -1894986606);
      c = II(c, d, a, b, m[i+10], 15, -1051523);
      b = II(b, c, d, a, m[i+ 1], 21, -2054922799);
      a = II(a, b, c, d, m[i+ 8],  6,  1873313359);
      d = II(d, a, b, c, m[i+15], 10, -30611744);
      c = II(c, d, a, b, m[i+ 6], 15, -1560198380);
      b = II(b, c, d, a, m[i+13], 21,  1309151649);
      a = II(a, b, c, d, m[i+ 4],  6, -145523070);
      d = II(d, a, b, c, m[i+11], 10, -1120210379);
      c = II(c, d, a, b, m[i+ 2], 15,  718787259);
      b = II(b, c, d, a, m[i+ 9], 21, -343485551);

      a = (a + aa) >>> 0;
      b = (b + bb) >>> 0;
      c = (c + cc) >>> 0;
      d = (d + dd) >>> 0;
    }

    return crypt.endian([a, b, c, d]);
  };

  // Auxiliary functions
  md5._ff  = function (a, b, c, d, x, s, t) {
    var n = a + (b & c | ~b & d) + (x >>> 0) + t;
    return ((n << s) | (n >>> (32 - s))) + b;
  };
  md5._gg  = function (a, b, c, d, x, s, t) {
    var n = a + (b & d | c & ~d) + (x >>> 0) + t;
    return ((n << s) | (n >>> (32 - s))) + b;
  };
  md5._hh  = function (a, b, c, d, x, s, t) {
    var n = a + (b ^ c ^ d) + (x >>> 0) + t;
    return ((n << s) | (n >>> (32 - s))) + b;
  };
  md5._ii  = function (a, b, c, d, x, s, t) {
    var n = a + (c ^ (b | ~d)) + (x >>> 0) + t;
    return ((n << s) | (n >>> (32 - s))) + b;
  };

  // Package private blocksize
  md5._blocksize = 16;
  md5._digestsize = 16;

  module.exports = function (message, options) {
    if (message === undefined || message === null)
      throw new Error('Illegal argument ' + message);

    var digestbytes = crypt.wordsToBytes(md5(message, options));
    return options && options.asBytes ? digestbytes :
        options && options.asString ? bin.bytesToString(digestbytes) :
        crypt.bytesToHex(digestbytes);
  };

})();


/***/ }),

/***/ 81:
/***/ (function(module, exports) {

(function() {
  var base64map
      = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',

  crypt = {
    // Bit-wise rotation left
    rotl: function(n, b) {
      return (n << b) | (n >>> (32 - b));
    },

    // Bit-wise rotation right
    rotr: function(n, b) {
      return (n << (32 - b)) | (n >>> b);
    },

    // Swap big-endian to little-endian and vice versa
    endian: function(n) {
      // If number given, swap endian
      if (n.constructor == Number) {
        return crypt.rotl(n, 8) & 0x00FF00FF | crypt.rotl(n, 24) & 0xFF00FF00;
      }

      // Else, assume array and swap all items
      for (var i = 0; i < n.length; i++)
        n[i] = crypt.endian(n[i]);
      return n;
    },

    // Generate an array of any length of random bytes
    randomBytes: function(n) {
      for (var bytes = []; n > 0; n--)
        bytes.push(Math.floor(Math.random() * 256));
      return bytes;
    },

    // Convert a byte array to big-endian 32-bit words
    bytesToWords: function(bytes) {
      for (var words = [], i = 0, b = 0; i < bytes.length; i++, b += 8)
        words[b >>> 5] |= bytes[i] << (24 - b % 32);
      return words;
    },

    // Convert big-endian 32-bit words to a byte array
    wordsToBytes: function(words) {
      for (var bytes = [], b = 0; b < words.length * 32; b += 8)
        bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
      return bytes;
    },

    // Convert a byte array to a hex string
    bytesToHex: function(bytes) {
      for (var hex = [], i = 0; i < bytes.length; i++) {
        hex.push((bytes[i] >>> 4).toString(16));
        hex.push((bytes[i] & 0xF).toString(16));
      }
      return hex.join('');
    },

    // Convert a hex string to a byte array
    hexToBytes: function(hex) {
      for (var bytes = [], c = 0; c < hex.length; c += 2)
        bytes.push(parseInt(hex.substr(c, 2), 16));
      return bytes;
    },

    // Convert a byte array to a base-64 string
    bytesToBase64: function(bytes) {
      for (var base64 = [], i = 0; i < bytes.length; i += 3) {
        var triplet = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];
        for (var j = 0; j < 4; j++)
          if (i * 8 + j * 6 <= bytes.length * 8)
            base64.push(base64map.charAt((triplet >>> 6 * (3 - j)) & 0x3F));
          else
            base64.push('=');
      }
      return base64.join('');
    },

    // Convert a base-64 string to a byte array
    base64ToBytes: function(base64) {
      // Remove non-base-64 characters
      base64 = base64.replace(/[^A-Z0-9+\/]/ig, '');

      for (var bytes = [], i = 0, imod4 = 0; i < base64.length;
          imod4 = ++i % 4) {
        if (imod4 == 0) continue;
        bytes.push(((base64map.indexOf(base64.charAt(i - 1))
            & (Math.pow(2, -2 * imod4 + 8) - 1)) << (imod4 * 2))
            | (base64map.indexOf(base64.charAt(i)) >>> (6 - imod4 * 2)));
      }
      return bytes;
    }
  };

  module.exports = crypt;
})();


/***/ }),

/***/ 82:
/***/ (function(module, exports) {

/*!
 * Determine if an object is a Buffer
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */

// The _isBuffer check is for Safari 5-7 support, because it's missing
// Object.prototype.constructor. Remove this eventually
module.exports = function (obj) {
  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
}

function isBuffer (obj) {
  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
}

// For Node v0.10 support. Remove this eventually.
function isSlowBuffer (obj) {
  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
}


/***/ })

/******/ });
});