Macros are ordinary compiled fns in Clojure's model; compile mode has had
that since the staged bootstrap, but interpret mode — the conformance
battery's default — kept interpreted expanders, so every distinct (and ...)/
(cond ...) call form, and every fresh form produced by a recursive expansion,
ran an interpreted closure. ensure-macros-compiled! now runs in every mode:
interpret-mode init loads the tiers fast-interpreted, then one pass at the
end builds the analyzer (which itself stays interpreted there) and compiles
all stashed expanders; user defmacros after init compile too. The new
:compile-macros? opt (JOLT_INTERPRET_MACROS=1) preserves the fully-
interpreted oracle, and joins the ctx-image cache key.
Battery: 4700 pass / 90 clean files / 7 timeouts, from 4577 / 87 / 9 — two
macro-heavy files stopped timing out and 149 more assertions execute. The
compiled-expander delta proper is +67 passes (oracle mode on the same tree
measures 4633). Baselines raised 4540->4660, clean 86->88. Interpret init
grows 0.12s -> 1.12s for the analyzer build; init-cached amortizes it to ~5ms
per process.
New macro-expansion-test pins: expanders compiled in interpret mode (core +
post-init user defmacros), uncompilable bodies fall back interpreted and
still work, compile mode unchanged, oracle opt-out honored.
Follow-up filed (jolt-4j3): the same staged-recompile treatment for early
overlay DEFNS, which is what still pins keys/vals/empty? to the seed.
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