#inst (jolt-rnh): an instant is an immutable tagged struct
{:jolt/type :jolt/inst :ms <epoch-millis>} — equality and map-key hashing by
INSTANT, so different offsets denoting the same moment are =. The reader
parses RFC3339 with Clojure's partial-timestamp defaults (#inst "2020" is
2020-01-01T00:00:00.000Z) and errors on malformed input; inst?/inst-ms in
the overlay; pr-str prints the canonical
#inst "yyyy-MM-ddThh:mm:ss.fff-00:00" and round-trips; str gives the bare
RFC3339 string. Self-evaluating in the evaluator (like uuid/chars).
Syntax-quote (jolt-l2a): a syntax-quoted self-evaluating literal (string,
number, boolean, nil, keyword, char) collapses to the literal at READ time,
matching Clojure's reader — so nested/adjacent backticks over literals are
inert: (= "meow" ```"meow") is true (jank pass-adjacent). Symbols still
qualify and collections still template. General nested syntax-quote over
non-literals remains UNVERIFIED in spec S25.
Tests: inst-spec (18 cases incl. partial defaults, offsets, round-trip),
+10 literal-collapse reader rows, +5 conformance rows (321x3). Spec
02-reader S20/S25 updated to normative. Suite stable 4470/86.
The lexical-syntax chapter, granularity modeled on jank's 62-file
per-construct reader corpus: token grammar (whitespace/comments, collections
with read-time duplicate checks, numbers incl. the N/M tower question,
symbols/keywords incl. ::auto-resolution, strings/chars), the quote-family
sugars, the full #-dispatch catalog with normative entries (anonymous fn
%-derivation, discard composition, reader conditionals, symbolic floats,
tagged literals), and the syntax-quote contract (core/alias/current-ns
qualification, template-stable gensyms, ~' idiom, distribution through
collections).
Adapting the corpus surfaced and filed three findings, recorded as labeled
divergences/UNVERIFIED in the chapter: nested syntax-quote doesn't collapse
(S25, (= "meow" ```"meow") is false), #inst reads as a bare string (identity
data reader, no instant type), and jolt satisfies :clj in reader
conditionals (feature-key policy under review).
reader-forms-spec gains 11 chapter-cited rows (discard stacking, ##Inf/
##-Inf/##NaN, :default conditionals, qualified var-quote identity, gensym
stability within vs across templates) — all passing.
Re-attempt of the deferred gap, now unblocked. The earlier uberscript break
wasn't qualification itself but an aliased-ref resolution bug it exposed:
resolve-var looked up ns-aliases (e.g. g/foo) against the analyzer's REBOUND
ctx-current-ns (jolt.analyzer, since the analyzer runs interpreted in its own
ns) instead of the namespace being compiled. A user's aliased refs failed
mid-compile (g/hello -> nil in the bundled standalone).
- resolve-var resolves aliases against :compile-ns when set (same ns
h-current-ns uses), falling back to ctx-current-ns — correct for both modes.
- sq-symbol qualifies a resolved clojure.core name to clojure.core/<name>
(Clojure hygiene); special forms stay bare; unresolved syms -> current ns.
Tests updated to the qualified behavior (features-test, reader-forms-spec).
Co-authored-by: Yogthos <yogthos@gmail.com>
* test: adapt jank's form/reader tests into spec suites; fix case no-match
Vendoring jank's behavior (not the project): we base our own copies on the
jank test corpus to close coverage gaps, but maintain them ourselves since
jank may diverge. Two new spec batteries (jank-isms translated to Jolt:
letfn* -> letfn, jank catch types -> :default; platform-specific bigdec/
biginteger/ratio/uuid/##Inf/unicode cases omitted):
- test/spec/forms-spec.janet (52): case, fn (arity/variadic/closure/recur/
named), let, letfn, loop, try, if/do/def/call — incl :throws regression
cases (no-match, bad params, nil call).
- test/spec/reader-forms-spec.janet (22): #() (% %N %&), #' var-quote,
^metadata, syntax-quote (gensym/unquote/splice).
Fix surfaced by adaptation: case with no matching clause and no default now
throws 'No matching clause' (Clojure semantics) instead of returning nil
(00-syntax). Gate green incl full jpm build+test.
Other gaps the adaptation surfaced are filed (tests adjusted to jolt's
current behavior + a comment, not silently dropped):
jolt-vdo case duplicate test constants not rejected
jolt-w2v loop bindings not sequential (later init can't see earlier)
jolt-6x1 #() %& miscomputes arity with a higher positional (%2 …)
jolt-xl0 ^meta not attached to collection literals ({}/[]/#{})
jolt-265 syntax-quote doesn't fully-qualify core syms to clojure.core/
jolt-edb syntax-quote ~/~@ not processed inside set literals
* core: fix 5 Clojure-conformance gaps surfaced by jank tests
All from adapting jank's form/reader tests; each fix verified in interpret +
compile modes and the spec tests now assert the correct behavior.
- jolt-vdo: case now rejects duplicate test constants at expansion (Clojure
compile error), via bootstrap-safe duplicate detection (00-syntax; analyzer.clj
uses case during its own build, so seed-only fns).
- jolt-w2v: loop bindings are now sequential like let — a later init can
reference an earlier binding. Fixed the interpreter loop* (accumulating scope)
and the back end emit-loop (bind initial inits in a sequential Janet let before
entering the recur target).
- jolt-6x1: #() reader computes the fixed arity from the MAX positional (%2 ->
[p1 p2 & rest]); % and %1 unify; unused lower slots get placeholder params.
- jolt-xl0: ^meta on collection literals ({}/[]/#{}) now attaches — read-meta
passes the NORMALIZED metadata map to with-meta (was the raw meta-form).
- jolt-edb: syntax-quote processes ~/~@ inside set literals (new __sqset builder
in core + set branches in syntax-quote* and syntax-quote-lower).
Deferred: jolt-265 (fully-qualify core syms to clojure.core/ in syntax-quote) —
it passes conformance but breaks the standalone uberscript (the ns macro emits
unqualified require/in-ns, which then qualify and break bundled require/alias).
Reverted to bare (functionally resolves); re-opened with the finding.
Gate green incl full jpm build + jpm test: conformance 269x3, suite >=4034/67,
fixpoint, self-host, sci 422/0, uberscript, all unit + spec (forms 55, reader 31).
---------
Co-authored-by: Yogthos <yogthos@gmail.com>
