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docs(tech-debt): split STDLIB-04 into 04a–04e per per-extern audit (Refs #175) #333

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hyperpolymath merged 1 commit into from
May 24, 2026
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docs(tech-debt): split STDLIB-04 into 04a–04e per per-extern audit (Refs #175) #333

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22 changes: 21 additions & 1 deletion docs/TECH-DEBT.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -159,7 +159,27 @@ complete; convergence ABI shared w/ Ephapax
insert/set/remove/keys/values; AOT-gated (#136). Closes ESC-03 #247 (the
#229 `Dict.t` target); unblocks the additive `Http.affine` headers→Dict
upgrade
|STDLIB-04 |Residual `extern` builtins → real implementations |S3 |open
|STDLIB-04 |Residual `extern` builtins → real implementations (umbrella;
split into 04a–04e 2026-05-24 per per-extern audit, one row per PR) |S3
|open (5 sub-rows)
|STDLIB-04a |Mut effect externs (`make_ref`/`get`/`set`) — currently
stub: surface syntax exists in `lib/js_codegen.ml` (~L144) but no real
wasm refcell or host-import lowering; round-trip unproven on all
backends |S3 |open — issue #328
|STDLIB-04b |Throws extern `error<T>` — missing in all backends
(`lib/interp.ml`, `lib/js_codegen.ml`, `lib/codegen_deno.ml`); sibling
`panic` is wired and `error` should mirror it (divergent `T`) |S3 |open
— issue #329
|STDLIB-04c |`string_concat` extern — no direct wiring found; `++`
operator independently lowered. Decide: remove (operator-only) or wire
to mirror `++` |S3 |open — issue #330
|STDLIB-04d |IO externs (`print`/`println`/`read_line`/`read_file`/
`write_file`) — wired on all backends but no dedicated hermetic e2e
tests; test-debt, not impl-debt |S3 |open — issue #331
|STDLIB-04e |Pure externs (`int_to_string`/`string_to_int`/
`string_length`) — real + tested (`lib/interp.ml:615-633`,
`lib/codegen_deno.ml:263-272`); bookkeeping to mark DONE |S3 |open —
issue #332
|===

== Section D — INT (ecosystem integration)
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