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refactor hash in JS backend (#16863)

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flywind 2021-01-30 07:14:38 -06:00 • committed by GitHub
commit 111092e8aa
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2 changed files with 39 additions and 29 deletions
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8
lib/std/private/jsutils.nim
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@ -1,12 +1,20 @@
when defined(js):
import std/jsbigints
type
ArrayBuffer* = ref object of JsRoot
Float64Array* = ref object of JsRoot
Uint32Array* = ref object of JsRoot
BigUint64Array* = ref object of JsRoot
func newArrayBuffer*(n: int): ArrayBuffer {.importjs: "new ArrayBuffer(#)".}
func newFloat64Array*(buffer: ArrayBuffer): Float64Array {.importjs: "new Float64Array(#)".}
func newUint32Array*(buffer: ArrayBuffer): Uint32Array {.importjs: "new Uint32Array(#)".}
func newBigUint64Array*(buffer: ArrayBuffer): BigUint64Array {.importjs: "new BigUint64Array(#)".}
func `[]`*(arr: Uint32Array, i: int): uint32 {.importjs: "#[#]".}
func `[]`*(arr: BigUint64Array, i: int): JsBigInt {.importjs: "#[#]".}
func `[]=`*(arr: Float64Array, i: int, v: float) {.importjs: "#[#] = #".}
proc hasJsBigInt*(): bool =
asm """`result` = typeof BigInt != 'undefined'"""