glam/lib/hash.js

inline css for your jsx

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = hashify;

// murmurhash2 via https://gist.github.com/raycmorgan/588423

function hashify(obj) {
  var str = JSON.stringify(obj);
  var toRet = doHash(str, str.length).toString(36);
  // if(obj.label && (obj.label.length > 0) && isDev){
  //   return simple(obj.label.join('.'), '-') + '-' + toRet
  // }
  return toRet;
}

function doHash(str, seed) {
  var m = 0x5bd1e995;
  var r = 24;
  var h = seed ^ str.length;
  var length = str.length;
  var currentIndex = 0;

  while (length >= 4) {
    var k = UInt32(str, currentIndex);

    k = Umul32(k, m);
    k ^= k >>> r;
    k = Umul32(k, m);

    h = Umul32(h, m);
    h ^= k;

    currentIndex += 4;
    length -= 4;
  }

  switch (length) {
    case 3:
      h ^= UInt16(str, currentIndex);
      h ^= str.charCodeAt(currentIndex + 2) << 16;
      h = Umul32(h, m);
      break;

    case 2:
      h ^= UInt16(str, currentIndex);
      h = Umul32(h, m);
      break;

    case 1:
      h ^= str.charCodeAt(currentIndex);
      h = Umul32(h, m);
      break;
  }

  h ^= h >>> 13;
  h = Umul32(h, m);
  h ^= h >>> 15;

  return h >>> 0;
}

function UInt32(str, pos) {
  return str.charCodeAt(pos++) + (str.charCodeAt(pos++) << 8) + (str.charCodeAt(pos++) << 16) + (str.charCodeAt(pos) << 24);
}

function UInt16(str, pos) {
  return str.charCodeAt(pos++) + (str.charCodeAt(pos++) << 8);
}

function Umul32(n, m) {
  n = n | 0;
  m = m | 0;
  var nlo = n & 0xffff;
  var nhi = n >>> 16;
  var res = nlo * m + ((nhi * m & 0xffff) << 16) | 0;
  return res;
}