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Two general fixes shaken out by core.typed's runtime contract suite

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Running clojure.core.typed's runtime contract tests (typed/runtime.jvm,
test_contract — 5/5 pass) surfaced two general jolt gaps, both runtime, both
JVM-certified:

- instance? Object / java.lang.Object returned false for everything. Object is
  the root of the type hierarchy: every non-nil value is an instance of Object,
  nil is not. core.typed's (instance-c Object) contract depends on this; many
  libraries do.
- @Compiler/LINE and @Compiler/COLUMN (clojure.lang.Compiler statics — Vars on
  the JVM holding the line/column of the form being compiled) were unresolved.
  Macros read @Compiler/LINE as a fallback when &form carries no position. Now
  backed by derefable cells updated per top-level form, like *current-source*.

The core.typed type checker itself (tools.analyzer.jvm + ASM bytecode +
clojure.lang.Compiler internals) and the cljs runtime are not portable, so the
checker/check-ns surface is out of scope; this is the runtime contract layer.

make test green (+4 corpus rows, 0 new divergences), shakesmoke byte-identical.
This commit is contained in:
Yogthos 2026-06-27 13:33:30 -04:00
parent 9805620997
commit 720734a481
3 changed files with 29 additions and 1 deletions
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17
host/chez/compile-eval.ss
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@ -27,9 +27,24 @@
;; {:line :column :file?} position map (jolt.host/form-position's shape).
;; Top-level granularity — one set per top-level form, nothing per call.
(define jolt-current-source (make-thread-parameter #f))
;; clojure.lang.Compiler/LINE and /COLUMN — derefable cells (Vars on the JVM)
;; holding the line/column of the form being compiled. Macros read @Compiler/LINE
;; as a fallback when &form carries no position (jolt's reader stamps :line on list
;; forms, so this is rarely hit). Updated per top-level form, like *current-source*.
(define compiler-line-cell (jolt-atom-new 0))
(define compiler-column-cell (jolt-atom-new 0))
(let ((members (list (cons "LINE" compiler-line-cell) (cons "COLUMN" compiler-column-cell))))
(register-class-statics! "Compiler" members)
(register-class-statics! "clojure.lang.Compiler" members))
(define (jolt-enter-form! form)
(let ((p (hc-form-position form)))
(when (pmap? p) (jolt-current-source p))))
(when (pmap? p)
(jolt-current-source p)
(let ((line (jolt-get p hc-kw-line jolt-nil)) (col (jolt-get p hc-kw-column jolt-nil)))
(jolt-atom-val-set! compiler-line-cell (if (jolt-nil? line) 0 line))
(jolt-atom-val-set! compiler-column-cell (if (jolt-nil? col) 0 col))))))
;; "file:line:col" / "line:col" for the current form, or #f when none is set.
(define (jolt-current-source-string)