typescript-plugin-styled-components
Version:
TypeScript transformer for improving the debugging experience of styled-components
60 lines (59 loc) • 1.83 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.hash = void 0;
/**
* JS Implementation of MurmurHash2
*
* @author <a href="mailto:gary.court@gmail.com">Gary Court</a>
* @see http://github.com/garycourt/murmurhash-js
* @author <a href="mailto:aappleby@gmail.com">Austin Appleby</a>
* @see http://sites.google.com/site/murmurhash/
*
* @param str ASCII only
* @param seed Positive integer only
* @return 32-bit positive integer hash
*/
function murmurhash2_32_gc(str, seed = 0) {
var l = str.length, h = seed ^ l, i = 0, k;
while (l >= 4) {
k =
(str.charCodeAt(i) & 0xff) |
((str.charCodeAt(++i) & 0xff) << 8) |
((str.charCodeAt(++i) & 0xff) << 16) |
((str.charCodeAt(++i) & 0xff) << 24);
k =
(k & 0xffff) * 0x5bd1e995 +
((((k >>> 16) * 0x5bd1e995) & 0xffff) << 16);
k ^= k >>> 24;
k =
(k & 0xffff) * 0x5bd1e995 +
((((k >>> 16) * 0x5bd1e995) & 0xffff) << 16);
h =
((h & 0xffff) * 0x5bd1e995 +
((((h >>> 16) * 0x5bd1e995) & 0xffff) << 16)) ^
k;
l -= 4;
++i;
}
switch (l) {
case 3:
h ^= (str.charCodeAt(i + 2) & 0xff) << 16;
case 2:
h ^= (str.charCodeAt(i + 1) & 0xff) << 8;
case 1:
h ^= str.charCodeAt(i) & 0xff;
h =
(h & 0xffff) * 0x5bd1e995 +
((((h >>> 16) * 0x5bd1e995) & 0xffff) << 16);
}
h ^= h >>> 13;
h =
(h & 0xffff) * 0x5bd1e995 +
((((h >>> 16) * 0x5bd1e995) & 0xffff) << 16);
h ^= h >>> 15;
return h >>> 0;
}
function hash(str) {
return murmurhash2_32_gc(str).toString(36);
}
exports.hash = hash;