deepseek-v4-pro
01cc3a0367
WASM (wasm32-unknown-unknown) has std via wasm-bindgen and is not blocked by this OQ. The crate is WASM-clean by construction. This OQ is about bare-metal embedded targets only.
23 lines
1.2 KiB
Markdown
23 lines
1.2 KiB
Markdown
# OQ-070: `no_std` + `alloc` support
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- **Origin**: [crates/typedef/overview.md](crates/typedef/overview.md);
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`docs/research/alknet-typedef/findings.md` §"Open Questions" (OQ 6)
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- **Status**: deferred(scope)
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- **Door type**: Two-way (additive — can be added as a feature gate
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without changing the existing `std` API)
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- **Priority**: low
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- **Impacts**: Blocks bare-metal embedded targets (microcontrollers
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running Rust without `std`). Does NOT block any current deployment
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target. Does NOT block WASM — `wasm32-unknown-unknown` has `std`
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available via `wasm-bindgen`; the crate is WASM-clean by construction
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(no tokio, no platform deps, `jsonschema` builds for WASM with
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`default-features = false`).
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- **Blocked on**: An embedded use case that requires `no_std` + `alloc`
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(e.g., a microcontroller running Rust without `std`).
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- **Resolution**: Not yet decidable. Target `std` for v1. If embedded
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use cases emerge, `no_std` + `alloc` can be added as a feature gate
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later. The engine's core (offset computation, read/write) is already
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allocation-free — it operates on `&[u8]` slices. The `jsonschema`
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dependency is the only `alloc` consumer.
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- **Cross-references**: ADR-095
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