Wrong realization of TypedArray's toLocaleString()

[sunlili]

Executing following code in ch 1.10 :

Uint8Array.prototype.toLocaleString.call(0)

The output is ""
However, in specific :
"ValidateTypedArray is applied to the this value prior to evaluating the algorithm. "
So, a TypeError should be thrown.

BT group
2018.08.29

[fatcerberus]

Interestingly there's a spec note here that if the ECMA-402 Intl API is present (which CC does implement) then the algorithm should instead be based on that of Array.prototype.toLocaleString - does that then invalidate the requirement to invoke ValidateTypedArray, I wonder? Intuitively one would expect that caveat to still apply but specifications can be fickle things.

[zenparsing]

@fatcerberus It is a bit oddly worded, but in this case ValidateTypedArray must still be applied to the typed array, since the algorithm will need to access internal slots instead of a "length" property, and will need to make sure that the typed array has not been detached.

[fatcerberus]

Alright, thanks - that’s what I intuitively expected but you can never be too sure with cases like this. :)