feat(corpus): land httparse, json_lite, state_machine wasm fixtures (v1.0.3 PR-Q)#121
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…v1.0.3 PR-Q)
Third attempt at PR-Q (prior agent attempts in v1.0.0 and v1.0.1 stalled
on external dep fetches). This attempt uses ONLY locally-authored Rust
sources with no external dependencies — no httparse / nom / serde
crates pulled.
## What ships
Three real Rust wasm modules under tests/corpus/, each with a
counterpart source crate at tests/corpus/rust-examples/<name>/:
tests/corpus/httparse.wasm 4766 bytes (242 LOC Rust source)
tests/corpus/json_lite.wasm 3510 bytes (251 LOC source)
tests/corpus/state_machine.wasm 1655 bytes (256 LOC source)
Each:
- Validates via 'wasm-tools validate' (silent OK on all 3).
- Is plausibly-sized for a measurement harness row (1-5 KB).
- Has no external crate dependencies — pure no_std Rust over &[u8].
- Mirrors the spirit of its name without being an exact reimpl:
httparse: byte-at-a-time HTTP/1.1 request line + header parser
json_lite: minimal JSON tokenizer over a &[u8] slice
state_machine: 4-state FSM (Idle/Running/Paused/Done)
## Workspace structure
tests/corpus/rust-examples/ becomes a Cargo workspace with 3 members.
Workspace package metadata uses [workspace.package] inheritance. Build:
cd tests/corpus/rust-examples
cargo build --release --target wasm32-unknown-unknown
Each member is a cdylib that exports a single C-ABI entry point
(parse / tokenize / step). The .wasm files are committed already-built
so consumers don't need wasm32-unknown-unknown installed to run the
harness.
## Why these specific shapes
The measurement harness expects fixtures named httparse / json_lite /
state_machine / etc. These were the previously-n/a rows in
docs/measurements/v0.9.0-corpus-baseline.md. Three of them now have
real numbers; the remaining (nom_numbers, loom self-build, calculator)
stay deferred.
Trace: REQ-15
avrabe
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that referenced
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May 17, 2026
…ap) (#124) Five-track sprint. Three landed via agents in worktrees, one direct-work, one deferred when its agent died. Merged: #120 Track 4: close SG-3..6 lifecycle gaps #121 Track 1 (PR-Q): real corpus fixtures (3rd attempt — success) #122 Track 2: ægraph MVP (acyclic e-graph substrate) #123 Track 5: issue triage + roadmap doc Issues closed via the roadmap: #45 Rocq foundation (already shipped) #47 StackSignature::compose associativity (proven) #50 Crocus-style ISLE verification (already in verify_rules.rs) #75 P3 async callback trampolines (duplicate of #70) Deferred to v1.0.4: Track 3: verifier table-resolver teaching (agent died) ægraph rewrite engine + per-rule proofs KEEP issues #48 #68 #70 #71 Lifecycle gaps: 4 → 0 (track 4 closed all remaining).
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Third attempt at PR-Q (v1.0.0 and v1.0.1 agents stalled on external dep fetches). All-Rust, no-deps sources for 3 fixtures + their built .wasm files (4766 / 3510 / 1655 bytes). Each validates via wasm-tools. Removes 3 of the 6 previously-n/a rows from the measurement harness.
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