Stream: git-wasmtime

Topic: wasmtime / PR #12670 Handle OOM in `wasmtime_environ::typ...

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:31):

fitzgen opened PR #12670 from fitzgen:handle-oom-in-environ-wasm-func-type to bytecodealliance:main:

It should also not #[derive(Clone)] anymore, just TryClone, which propagates out to a bunch of other types as well.

And while we are here:

• Rename its "returns" to "results" to match Wasmtime's public API and also the Wasm text format.
• Store both its params and results in a single allocation.
• Shrink its size on 64-bit architectures by storing its param- and result-GC-type counts as u32s rather than usizes.

Depends on https://github.com/bytecodealliance/wasmtime/pull/12669

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:31):

fitzgen requested wasmtime-compiler-reviewers for a review on PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:31):

fitzgen requested cfallin for a review on PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:31):

fitzgen requested wasmtime-core-reviewers for a review on PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:38):

alexcrichton submitted PR review.

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:38):

alexcrichton created PR review comment:

Random thought: maybe a built-in clone_panic_on_oom() method on TryClone?

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:39):

fitzgen submitted PR review.

Wasmtime GitHub notifications bot (Feb 25 2026 at 19:39):

fitzgen created PR review comment:

Ah! Good idea, I'll do that in a follow up PR.

Wasmtime GitHub notifications bot (Feb 25 2026 at 20:07):

fitzgen updated PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 20:08):

fitzgen updated PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 20:08):

fitzgen has enabled auto merge for PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 21:46):

fitzgen updated PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 22:00):

fitzgen added PR #12670 Handle OOM in wasmtime_environ::types::WasmFuncType to the merge queue

Wasmtime GitHub notifications bot (Feb 25 2026 at 22:24):

fitzgen merged PR #12670.

Wasmtime GitHub notifications bot (Feb 25 2026 at 22:24):

fitzgen removed PR #12670 Handle OOM in wasmtime_environ::types::WasmFuncType from the merge queue

Last updated: Mar 23 2026 at 16:19 UTC