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Add v128 to JS API #360
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Add v128 to JS API #360
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Following the description given in https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#javascript-api-and-simd-values and also what I64 did before bigint integration.
dtig
reviewed
Jan 5, 2021
| <div algorithm> | ||
| The algorithm <dfn>ToJSValue</dfn>(|w|) coerces a [=WebAssembly value=] to a JavaScript value by performing the following steps: | ||
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| 1. Assert: |w| is not of the form [=v128.const=] <var ignore>v128</var>. |
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Perhaps I'm not understanding this well, why is this assert required? Also, what happens for i64 values without BigInt support?
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why is this assert required?
This assert is to ensure that we never call ToJSValue with a v128.const, since we don't know how to convert it to JS. In all the callers of ToJSValue we should have checked for v128 and raise an exception prior.
Also, what happens for i64 values without BigInt support?
I think BigInt support is required, not too sure.
dtig
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Feb 2, 2021
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Following the description given in
https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#javascript-api-and-simd-values
and also what I64 did before bigint integration.
js-api tests are not updated yet, that will come in a future patch.