Split records.ss: lift the JVM-emulation taxonomy into records-interop.ss

records.ss mixed the record/protocol/reify model with JVM exception emulation.
Move the contiguous ex-info accessors, the exception supertype hierarchy,
instance-check, case-string, and the instance-check def-var into records-interop.ss,
loaded right after records.ss. Those are only called at runtime, so the relocated
forms resolve fine; records.ss is now the value model and protocol dispatch.
Runtime shim — no seed change.

host/chez/records.ss

@@ -410,90 +410,6 @@
 ;; jolt exception values (ex-info + host-constructed throwables) are ex-info-shaped
 ;; maps tagged :jolt/type :jolt/ex-info; (class …)/instance? read the JVM class off
 ;; the optional :jolt/class key, defaulting to clojure.lang.ExceptionInfo.
-;; pmap? guard: ex-info maps are plain hash-maps, never sorted-map htables — and a
-;; bare jolt-get on a sorted-map would invoke its comparator on :jolt/type and throw.
-(define (ex-info-map? v)
-  (and (pmap? v) (jolt=2 (jolt-get v jolt-kw-ex-type jolt-nil) jolt-kw-ex-info)))
-(define (ex-info-class v)
-  (let ((c (jolt-get v jolt-kw-class jolt-nil)))
-    (if (string? c) c "clojure.lang.ExceptionInfo")))
-;; immediate-parent chain of the JVM exception hierarchy (simple names). Drives
-;; instance? across exception supertypes — (instance? Throwable (ex-info …)) etc.
-(define exception-parent
-  '(("ExceptionInfo" . "RuntimeException")
-    ("RuntimeException" . "Exception")
-    ("IllegalArgumentException" . "RuntimeException")
-    ("NumberFormatException" . "IllegalArgumentException")
-    ("IllegalStateException" . "RuntimeException")
-    ("UnsupportedOperationException" . "RuntimeException")
-    ("ArithmeticException" . "RuntimeException")
-    ("NullPointerException" . "RuntimeException")
-    ("ClassCastException" . "RuntimeException")
-    ("IndexOutOfBoundsException" . "RuntimeException")
-    ("ConcurrentModificationException" . "RuntimeException")
-    ("NoSuchElementException" . "RuntimeException")
-    ("UncheckedIOException" . "RuntimeException")
-    ("InterruptedException" . "Exception")
-    ("IOException" . "Exception")
-    ("FileNotFoundException" . "IOException")
-    ("UnsupportedEncodingException" . "IOException")
-    ("UnknownHostException" . "IOException")
-    ("SocketException" . "IOException")
-    ("ConnectException" . "IOException")
-    ("SocketTimeoutException" . "IOException")
-    ("MalformedURLException" . "IOException")
-    ("SSLException" . "IOException")
-    ("Exception" . "Throwable")
-    ("Error" . "Throwable")
-    ("AssertionError" . "Error")
-    ("Throwable" . "Object")))
-;; Is `wanted` (simple name) `cls` or a supertype of it? ExceptionInfo also
-;; implements the IExceptionInfo interface.
-(define (exception-isa? cls wanted)
-  (let loop ((c cls))
-    (cond ((not c) #f)
-          ((string=? c wanted) #t)
-          ((and (string=? c "ExceptionInfo") (string=? wanted "IExceptionInfo")) #t)
-          (else (let ((p (assoc c exception-parent))) (loop (and p (cdr p))))))))
-
-;; instance-check: (type-sym val) — type/protocol membership.
-(define (instance-check type-sym val)
-  (let ((tname (symbol-t-name type-sym)))
-    (cond
-      ((jrec? val)
-       (let ((tag (jrec-tag val)))
-         (or (string=? tag tname)
-             (and (> (string-length tag) (string-length tname))
-                  (string=? (substring tag (- (string-length tag) (string-length tname)) (string-length tag)) tname)))))
-      ((jreify? val) (let ((short (last-dot tname)))
-                       (and (memp (lambda (p) (string=? (last-dot p) short)) (jreify-protos val)) #t)))
-      ((ex-info-map? val) (exception-isa? (last-dot (ex-info-class val)) (last-dot tname)))
-      (else (case-string tname val)))))
-(define (case-string tname val)
-  (cond
-    ((member tname '("Number" "java.lang.Number")) (number? val))
-    ((member tname '("Long" "java.lang.Long" "Integer" "java.lang.Integer"))
-     (and (number? val) (exact? val) (integer? val)))
-    ((member tname '("Double" "java.lang.Double" "Float" "java.lang.Float")) (and (number? val) (flonum? val)))
-    ((member tname '("Ratio" "clojure.lang.Ratio")) (and (number? val) (exact? val) (rational? val) (not (integer? val))))
-    ((member tname '("String" "java.lang.String" "CharSequence" "java.lang.CharSequence")) (string? val))
-    ((member tname '("Boolean" "java.lang.Boolean")) (boolean? val))
-    ((member tname '("Character" "java.lang.Character")) (char? val))
-    ((member tname '("Keyword" "clojure.lang.Keyword")) (keyword? val))
-    ((member tname '("Symbol" "clojure.lang.Symbol")) (jolt-symbol? val))
-    ((member tname '("Atom" "clojure.lang.Atom")) (jolt-atom? val))
-    ((member tname '("IFn" "clojure.lang.IFn" "Fn" "clojure.lang.Fn")) (procedure? val))
-    ((member tname '("Pattern" "java.util.regex.Pattern")) (regex-t? val))
-    ((member tname '("URI" "java.net.URI"))
-     (and (jhost? val) (string=? (jhost-tag val) "uri")))
-    ((member tname '("File" "java.io.File")) (jfile? val))
-    ((member tname '("UUID" "java.util.UUID")) (juuid? val))
-    (else #f)))
-
-;; str of a record uses a custom (Object toString) impl if the type defines one
-;; (deftype with no default toString relies on this); otherwise the map form
-;; without the leading # (Clojure's record .toString). converters.ss loads before
-;; records.ss, so this set! sees the registry — forward refs resolve at call time.
 (define %r-str-render-one jolt-str-render-one)
 (set! jolt-str-render-one
   (lambda (v)
@@ -516,6 +432,5 @@
 (def-var! "clojure.core" "protocol-dispatch" (lambda (pn mn obj rest) (protocol-dispatch pn mn obj rest)))
 (def-var! "clojure.core" "satisfies?" jolt-satisfies?)
 (def-var! "clojure.core" "extenders" extenders)
-(def-var! "clojure.core" "instance-check" instance-check)
 (def-var! "clojure.core" "make-reified" (lambda (mm . rest) (apply make-reified mm rest)))
 (def-var! "clojure.core" "record-method-dispatch" (lambda (obj m rest) (record-method-dispatch obj m rest)))