diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/pure/hashes.nim | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/pure/hashes.nim b/lib/pure/hashes.nim index 1024ce26f..3191d4030 100644 --- a/lib/pure/hashes.nim +++ b/lib/pure/hashes.nim @@ -113,8 +113,12 @@ proc hashWangYi1*(x: int64|uint64|Hash): Hash {.inline.} = const P0 = 0xa0761d6478bd642f'u64 const P1 = 0xe7037ed1a0b428db'u64 const P58 = 0xeb44accab455d165'u64 xor 8'u64 + template h(x): untyped = hiXorLo(hiXorLo(P0, uint64(x) xor P1), P58) when nimvm: - cast[Hash](hiXorLo(hiXorLo(P0, uint64(x) xor P1), P58)) + when defined(js): # Nim int64<->JS Number & VM match => JS gets 32-bit hash + result = cast[Hash](h(x)) and cast[Hash](0xFFFFFFFF) + else: + result = cast[Hash](h(x)) else: when defined(js): asm """ @@ -132,8 +136,9 @@ proc hashWangYi1*(x: int64|uint64|Hash): Hash {.inline.} = var res = hi_xor_lo_js(hi_xor_lo_js(P0, BigInt(`x`) ^ P1), P58); `result` = Number(res & ((BigInt(1) << BigInt(53)) - BigInt(1))); }""" + result = result and cast[Hash](0xFFFFFFFF) else: - cast[Hash](hiXorLo(hiXorLo(P0, uint64(x) xor P1), P58)) + result = cast[Hash](h(x)) proc hashData*(data: pointer, size: int): Hash = ## Hashes an array of bytes of size `size`. |