Stream: git-wasmtime

Topic: wasmtime / PR #12142 cm-async: Start to fill out `{Future...

Wasmtime GitHub notifications bot (Dec 08 2025 at 23:53):

alexcrichton requested dicej for a review on PR #12142.

Wasmtime GitHub notifications bot (Dec 08 2025 at 23:53):

alexcrichton requested wasmtime-core-reviewers for a review on PR #12142.

Wasmtime GitHub notifications bot (Dec 08 2025 at 23:53):

alexcrichton opened PR #12142 from alexcrichton:start-filling-out-future-and-stream-any to bytecodealliance:main:

This commit is the first step down the road of filling out the preexisting, but empty/buggy, FutureAny and StreamAny types. These are intended to behave similarly to ResourceAny where the embedder doesn't have static knowledge ahead of time about the type of the future/stream in use. Changes made here are:

• ComponentType for {Stream,Future}Reader<T> now correctly typecheck the T.
• Conversion to/from *Any types now properly typechecks the payload type against the expected type.
• {Future,Stream}Any now live in their own file with the matrix of conversions to the typed variants.
• A close method was added to *Any types.

These types are not currently directly constructible but this will likely be relaxed in the future. Additionally the host can't actually use these values without knowing the type, which is another restriction that will be relaxed in the future (aka implemented).

cc #11161

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Wasmtime GitHub notifications bot (Dec 09 2025 at 15:40):

dicej submitted PR review:

Thanks for doing this!

Wasmtime GitHub notifications bot (Dec 09 2025 at 16:19):

alexcrichton updated PR #12142.

Wasmtime GitHub notifications bot (Dec 09 2025 at 18:09):

alexcrichton updated PR #12142.

Wasmtime GitHub notifications bot (Dec 09 2025 at 18:10):

alexcrichton has enabled auto merge for PR #12142.

Wasmtime GitHub notifications bot (Dec 09 2025 at 18:46):

alexcrichton merged PR #12142.

Last updated: Dec 13 2025 at 19:03 UTC