Chez Phase 1 (increment 3e): throw/try/catch/finally + ex-info

Emit :throw as jolt-throw (Scheme raise of the raw jolt value, matching the
Janet compiled back end's (error v) — no envelope, so catch binds it directly).
Emit :try as guard (catch; the class is dropped in the IR, so it's catch-all)
plus dynamic-wind for finally. ex-info is a native-op building the tagged jolt
map {:jolt/type :jolt/ex-info :message :data :cause}, so the ex-data/ex-message/
ex-cause tier fns read it over jolt-get for free.

Prelude emit reach 303 -> 334/355 (:throw and :try gaps close). Subset probe
619 -> 632/632 compiled, 0 divergences (throw/try/ex-info pull 13 corpus cases
into the subset). emit-test 94/94 (added 11 throw/try/ex-info cases + uncaught
exits non-zero). Full gate green.
This commit is contained in:
Yogthos 2026-06-17 17:10:38 -04:00
parent 8f26433469
commit ffa122440a
5 changed files with 87 additions and 12 deletions

View file

@ -98,7 +98,7 @@
# Regression floor (raise it as new IR ops / RT shims land, like the suite
# baseline). Fails if prelude emit reach drops below the recorded baseline.
(def reach-floor 303)
(def reach-floor 334)
(when (< compiled reach-floor)
(printf "REGRESSION: prelude emit reach %d < floor %d" compiled reach-floor)
(os/exit 1))