Bug 251039

Summary: [Wasm-GC] Add extern.internalize/externalize
Product: WebKit Reporter: Asumu Takikawa <asumu>
Component: WebAssemblyAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 247394    

Description Asumu Takikawa 2023-01-23 14:15:48 PST 
The extern.internalize/externalize instructions are used to explicitly convert between the externref type and values in the anyref hierarchy. https://github.com/WebAssembly/gc/blob/main/proposals/gc/MVP.md#external-conversion

Currently this isn't implemented, so no anyref values can be exported externally. The conversions done by these instructions will also be implicitly used at the Wasm-JS boundary, whenever a conversion is needed by the JS API (e.g., for function calls between the languages).
Comment 1 Radar WebKit Bug Importer 2023-01-30 14:16:17 PST 
<rdar://problem/104836882>
Comment 2 Asumu Takikawa 2023-03-17 14:58:45 PDT 
Pull request: https://github.com/WebKit/WebKit/pull/11666
Comment 3 EWS 2023-03-29 11:24:36 PDT 
Committed 262282@main (e537d9e945bc): <https://commits.webkit.org/262282@main>

Reviewed commits have been landed. Closing PR #11666 and removing active labels.