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[js-api] Allow optional asynchronous steps after instantiation?

11

The previous JS.md includes this phrase in a [the definition of instantiation](https://github.com/WebAssembly/design/blob/master/JS.md#webassemblyinstantiate): > After the instantiation task runs and before any subsequent steps are taken, other unspecified asynchronous tasks may...

littledan

[feature] Roundtrip names with strange symbols in text format

7

See https://github.com/WebAssembly/wabt/issues/685#issue-278801340. We currently generate a name section using the name provided like `$foo`. This doesn't work for all names that are allowed by the binary format. Should we have...

binji

I was looking through the definition of addresses and found it might be contradicting itself. https://www.w3.org/TR/wasm-core-2/exec/runtime.html#syntax-externaddr It mentions "an embedder may supply an uninterpreted set of host addresses" but also...

anuraaga

[js-api] Conversion from JS values to floats doesn't specify how to handle NaNs

4

The current algorithm within `ToWebAssemblyValue` to convert from JS values to floats looks like this: > If type is [f64](https://webassembly.github.io/spec/core/syntax/types.html#syntax-numtype), > > Let f64 be ? [ToNumber](https://tc39.github.io/ecma262/#sec-tonumber)(v). > > Return...

Liamolucko

[js-api] Needs to integrate with CSP

14

It seems that https://github.com/WebAssembly/content-security-policy/blob/main/proposals/CSP.md hasn't been integrated here yet, but https://w3c.github.io/webappsec-csp/#can-compile-wasm-bytes does exist. @antosart @fgmccabe

annevk

[js-api] Can we get a constant for page size?

1

Currently in order to prepare some memory in the JS API we need to specify the size of the memory in page sizes. However if we already have some memory...

Jamesernator

[wasm-web-api-1] Don't use fetch's "extract a MIME type"

3

As I was looking into refactoring some code in Deno's implementation of the wasm web APIs, I noticed that the spec calls into fetch's ["extract a MIME type"](https://fetch.spec.whatwg.org/#concept-header-extract-mime-type) algorithm, and...

andreubotella

[js-api] Integration with the ResizableArrayBuffer and GrowableSharedArrayBuffer proposal

47

The [ResizableArrayBuffer and GrowableSharedArrayBuffer proposal](https://github.com/tc39/proposal-resizablearraybuffer) is a TC39 proposal that is currently stage 2. There was [some discussion](https://github.com/tc39/proposal-resizablearraybuffer/issues/5) of how the proposal might integrate with the Wasm/JS API. It seems...

syg

[js-api] Try to clarify NaN/infinity handling.

1

Fixes #1496.

Ms2ger

Question about linking.wast

7

linking.wast has the following test. https://github.com/WebAssembly/spec/blob/f1229e10c774359355963d93694b48f225a008e1/test/core/linking.wast#L264-L275 does it mean that, while the instantiation attempt failed, the runtime should actually keep the partially-instantiated instance live so that the function `$f` can...

yamt