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/* eslint-disable */
// Inspired by https://github.com/garycourt/murmurhash-js
// Ported from https://github.com/aappleby/smhasher/blob/61a0530f28277f2e850bfc39600ce61d02b518de/src/MurmurHash2.cpp#L37-L86
function murmur2(str) {
// 'm' and 'r' are mixing constants generated offline.
// They're not really 'magic', they just happen to work well.
// const m = 0x5bd1e995;
// const r = 24;
// Initialize the hash
var h = 0; // Mix 4 bytes at a time into the hash
var k,
i = 0,
len = str.length;
for (; len >= 4; ++i, len -= 4) {
k = str.charCodeAt(i) & 0xff | (str.charCodeAt(++i) & 0xff) << 8 | (str.charCodeAt(++i) & 0xff) << 16 | (str.charCodeAt(++i) & 0xff) << 24;
k =
/* Math.imul(k, m): */
(k & 0xffff) * 0x5bd1e995 + ((k >>> 16) * 0xe995 << 16);
k ^=
/* k >>> r: */
k >>> 24;
h =
/* Math.imul(k, m): */
(k & 0xffff) * 0x5bd1e995 + ((k >>> 16) * 0xe995 << 16) ^
/* Math.imul(h, m): */
(h & 0xffff) * 0x5bd1e995 + ((h >>> 16) * 0xe995 << 16);
} // Handle the last few bytes of the input array
switch (len) {
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 =
/* Math.imul(h, m): */
(h & 0xffff) * 0x5bd1e995 + ((h >>> 16) * 0xe995 << 16);
} // Do a few final mixes of the hash to ensure the last few
// bytes are well-incorporated.
h ^= h >>> 13;
h =
/* Math.imul(h, m): */
(h & 0xffff) * 0x5bd1e995 + ((h >>> 16) * 0xe995 << 16);
return ((h ^ h >>> 15) >>> 0).toString(36);
}
export default murmur2;
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