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author | flywind <43030857+xflywind@users.noreply.github.com> | 2021-01-19 07:57:16 -0600 |
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committer | GitHub <noreply@github.com> | 2021-01-19 14:57:16 +0100 |
commit | a0fddfecd438d29ee7acc76333d966911adcedbb (patch) | |
tree | b3c76f21a09348465d3d6131549a2317b69b0d14 /lib/std | |
parent | 0300203e811e7ecff4a7ec9bbb087ec946bbf1f2 (diff) | |
download | Nim-a0fddfecd438d29ee7acc76333d966911adcedbb.tar.gz |
perpare for more compact bit operations in JS (#16728)
Diffstat (limited to 'lib/std')
-rw-r--r-- | lib/std/private/jsutils.nim | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/std/private/jsutils.nim b/lib/std/private/jsutils.nim new file mode 100644 index 000000000..cc463ac74 --- /dev/null +++ b/lib/std/private/jsutils.nim @@ -0,0 +1,12 @@ +when defined(js): + type + ArrayBuffer* = ref object of JsRoot + Float64Array* = ref object of JsRoot + Uint32Array* = 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 `[]`*(arr: Uint32Array, i: int): uint32 {.importjs: "#[#]".} + func `[]=`*(arr: Float64Array, i: int, v: float) {.importjs: "#[#] = #".} |