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Numbers-style category dispatch for binary numeric ops

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Arithmetic and comparisons lowered to raw Chez ops, so an operand outside
Chez's tower (BigDecimal) crashed with a raw condition, and Chez contagion
leaked: (* 1.0 0) gave exact 0 where the JVM gives 0.0, (* ##Inf 0) gave 0
instead of ##NaN, (/ 1 0) raised an untyped error.

One seam now (host/chez/seq.ss): call position emits jolt-n* macros with the
both-Chez-numbers fast path open-coded; value position folds through the same
binary ops. Anything outside the tower falls to per-op slow hooks that
java/bigdec.ss extends, so bigdec arithmetic works in every position (the old
static-only :bigdec typing limitation is gone). JVM rules patched into the
fast path: a double operand wins, an exact zero divisor throws
ArithmeticException while a double zero divisor yields Inf/NaN, quot/rem/mod
cover ratios and doubles, min/max return the original operand with NaN
winning, a nil operand is NPE and a non-number CCE, zero-arg -// throw
ArityException at runtime instead of failing expansion.

Also: with-precision now binds *math-context* and bigdec results round with
real RoundingMode semantics (UNNECESSARY throws; division rounds to precision
instead of throwing); rationalize goes through the shortest decimal print
like BigDecimal.valueOf (the identity stub is gone); ratios coerce to bigdec
like Numbers.toBigDecimal; min/max int-literal operands no longer coerce to
flonum in the numeric pass.

Perf neutral: fib and seq benches unchanged (the fast path is two type checks
the optimizer folds); hinted fl/fx paths untouched. 19 JVM-certified corpus
rows; cts baseline 5614->5730 pass, 192->88 errors, 84->79 baselined
namespaces.
This commit is contained in:
Yogthos 2026-07-02 06:41:45 -04:00
parent 38abc1be84
commit e66a91750e
13 changed files with 1106 additions and 729 deletions
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17
test/chez/cts-known-failures.txt
View file

@ -1,7 +1,7 @@
# clojure-test-suite known failures: <namespace> <fail> <error>
# The gate fails on any per-namespace change, worse OR better; regenerate
# with: JOLT_CTS_WRITE_BASELINE=1 host/chez/cts.sh
clojure.core-test.abs 1 1
clojure.core-test.abs 1 0
clojure.core-test.add-watch 0 3
clojure.core-test.ancestors 9 0
clojure.core-test.atom 14 0
@ -34,10 +34,8 @@ clojure.core-test.intern 2 0
clojure.core-test.keys 0 4
clojure.core-test.lazy-seq 3 0
clojure.core-test.long 2 5
clojure.core-test.max 3 1
clojure.core-test.min 3 1
clojure.core-test.minus 2 0
clojure.core-test.mod 12 34
clojure.core-test.mod 23 0
clojure.core-test.neg-int-qmark 1 0
clojure.core-test.not-eq 3 0
clojure.core-test.nth 0 1
@ -52,32 +50,29 @@ clojure.core-test.plus 11 0
clojure.core-test.plus-squote 11 0
clojure.core-test.pop 0 1
clojure.core-test.pos-int-qmark 1 0
clojure.core-test.quot 12 23
clojure.core-test.quot 30 0
clojure.core-test.rand-nth 0 1
clojure.core-test.rational-qmark 3 0
clojure.core-test.rationalize 10 0
clojure.core-test.realized-qmark 3 0
clojure.core-test.reduce 0 1
clojure.core-test.rem 12 22
clojure.core-test.rem 21 0
clojure.core-test.remove-watch 0 1
clojure.core-test.run-bang 1 0
clojure.core-test.select-keys 2 0
clojure.core-test.seqable-qmark 1 0
clojure.core-test.short 7 5
clojure.core-test.shuffle 1 0
clojure.core-test.slash 2 22
clojure.core-test.some-fn 3 0
clojure.core-test.sort-by 2 0
clojure.core-test.special-symbol-qmark 4 0
clojure.core-test.star 22 0
clojure.core-test.star-squote 19 0
clojure.core-test.star 13 0
clojure.core-test.star-squote 13 0
clojure.core-test.transient 23 0
clojure.core-test.underive 7 0
clojure.core-test.update 1 0
clojure.core-test.vals 0 3
clojure.core-test.vec 1 0
clojure.core-test.when-let 1 0
clojure.core-test.with-precision 17 0
clojure.edn-test.read-string 46 5
clojure.string-test.capitalize 0 4
clojure.string-test.ends-with-qmark 1 4