clojure.edn was nearly complete (sets, #uuid/#inst, :eof all landed earlier);
the :readers opt was ignored and :default missing. Both work now — the
reader stores a tag as a :#name keyword, so the lookup normalizes it to the
symbol Clojure keys :readers with; :default gets (tag value); built-in data
readers stay the fallback. 8 new edn spec rows. This was the last open item
of jolt-0mb (the vendored walk/zip/data/edn battery has been green for a
while: 34/33/61/50, all clean).
Chasing the probe cascade ('Unable to resolve symbol: edn/...' after one
error) found a real evaluator bug: an interpreted fn body runs with
current-ns rebound to its DEFINING ns and restores it with a plain trailing
call — an UNCAUGHT throw skips every restore on the way out, leaving the ctx
stuck in the deepest callee's ns, where alias-qualified lookups then fail
(the same cascade previously seen via sci). The repair lives at the
TOP-LEVEL boundary (loader/eval-toplevel saves the entry ns and restores it
on error before re-raising) — NOT per-call defer/try, which builds a fiber
per frame and blew the C stack on deep interpreted recursion (file-seq)
when tried first. Regression tests cover the cross-eval leak and that
aliases keep resolving.
Fifteen vars from the spec coverage gap (docs/spec/coverage.md):
parse-long/parse-double/parse-boolean (strict validation; scan-number alone
accepts 0x10), newline, current-time-ms (host clock for time), update-keys/
update-vals (PHM base, collisions last-wins), partitionv/partitionv-all/
splitv-at (lazy seqs of vectors; splitv-at's tail stays a seq, matching the
reference), with-redefs/with-redefs-fn (roots restored on throw), time,
macroexpand (expand-1 to fixpoint), alias/ns-unalias (write BOTH alias stores
— require :as uses string-keyed :imports while ns-aliases reads :aliases;
split filed), ns-publics (symbol-keyed map; publics == interns, no privacy).
Three pre-existing bugs fixed along the way:
- (partition n step pad coll) misparsed pad as the coll and returned ()
- (require 'bare.symbol) rejected — only vector specs were accepted
- analyze-form leaked the interpreted analyzer's ns on a punt: a throw out of
the analyzer left current-ns=jolt.analyzer and :compile-ns set, so the
fallback interpretation resolved user vars against the wrong namespace
(bit (var user-sym) under compile mode)
And one overlay-authoring landmine documented in-code: a 20-coll fn must not
use 30-macros macros (with-redefs-fn's dotimes compiled as a forward ref that
resolved to the macro fn at runtime) — loop/recur instead.
Gate: conformance 316x3 (+14 rows), suite 4324 pass / 78 clean (was 4081/72;
parse_*/update_* files now contribute), baselines raised, all specs+unit,
fixpoint, self-host, sci, staged. Coverage: missing-portable 35 -> 20.
* core: Stage 2 Task 2 tier 4b — compile ns (+ use/import/refer-clojure)
ns becomes a macro (00-syntax) expanding to (do (in-ns 'name) (require …)
(use …) (import …) (refer-clojure …)) — matching Clojure, where require is
a fn and ns expands to require calls. use/import/refer-clojure join the
namespace ops as ctx-capturing clojure.core fns (use-impl/import-impl/
refer-clojure-impl, interned by install-stateful-fns!). Removed the ns
interpreter special arm; dropped ns/use/import from host_iface special-names
and loader stateful-head?.
Placement matters: ns lives in the FIRST overlay tier (00-syntax), because
the self-hosted analyzer build is triggered while 10-seq loads and processes
jolt.analyzer's own (ns …) form — ns must exist by then. Its body resolves
fn/map/reduce/cond at expansion time, by which point all of 00-syntax has
loaded. The bootstrap compiler (compiler.janet) still PUNTS ns/in-ns/require/
use/import (it compiles analyzer.clj/ir.clj, whose ns forms must fall back to
the interpreter that expands the macro) — only the self-hosted analyzer
compiles them.
use-impl fixes a latent bug: it now refers the used ns's vars into the
CURRENT ns (the old special interned a ns into itself, a no-op).
ns/use/import now compile + interpret as plain invokes. fallback-zero: ns off
must-punt, onto must-compile.
Gate green: conformance 267x3, fallback-zero 38/4, bootstrap-fixpoint
stage1==2==3, self-host, staged-bootstrap, sci-bootstrap, clojure-test-suite
>=4034/67, namespace, deps-loader, cli, aot, embedded-stdlib, uberscript,
features 78/78, all unit + spec.
* test/core: cover ns form + :use; fix use-impl spec parsing
Checking test coverage for the namespace tiers surfaced a real bug nothing
exercised: use-impl checked (array? s) to find a spec's ns symbol, but a
vector spec like [src.x] is a pvec/tuple, not a Janet array — so (:use ...)
and standalone (use ...) errored. Fixed to coerce (pvec->array) then take the
head when the spec is indexed (matching require-impl).
Added coverage that was missing:
- conformance (x3 modes): the (ns …) form itself + :use refers.
- namespaces-spec: (ns …) form, :use, standalone use.
The :use/(use …) path had ZERO tests before, which is why the bug slipped
through earlier tiers.
EBNF needs no change — it's a reader/syntax grammar with no special-forms
enumeration; ns/require/protocol syntax is unchanged (the destructuring note
was already updated in jolt-f79).
Gate green: conformance 269x3, fallback-zero 38/4, self-host, sci-bootstrap,
bootstrap-fixpoint, staged-bootstrap, clojure-test-suite >=4034/67, namespace,
all unit + spec (namespaces 27/27).
---------
Co-authored-by: Yogthos <yogthos@gmail.com>
Close jolt-dd5.
- catch now binds the originally-thrown value (unwrapping the :jolt/exception
envelope), so (catch ... e (throw e)) rethrows the same exception instead of
nesting another envelope, and (catch ... e e) on (throw 42) yields 42.
- var-set updates the innermost thread-binding frame for the var (replacing the
stack slot) when the var is dynamically bound, matching Clojure; it falls back
to the root otherwise.
Restored spec cases: exceptions rethrow + catch-binds-thrown-value, namespaces
var-set-in-binding. conformance 218/218, jpm test green.
Mine the cljs port batteries into the spec layer and delete them (their behavior
is covered by spec; the unique functions they exercised are now specced).
Removed test/integration/ports/ entirely.
New/expanded spec coverage from the mining:
- spec/exceptions-spec: try/catch/finally, throw, ex-info/ex-message/ex-data/ex-cause
- doto, pr-str, keyword/symbol constructors, atom?, dynamic var binding
Two rare edges filed (jolt-...): rethrow of a caught ex-info re-wraps it; var-set
on a dynamic var inside binding no-ops. Core try/catch/ex-info and binding work.
Test layout is now spec (22 files, ~677 cases) / integration / unit / support.
conformance 218/218, jpm test green.
Mine the phase* port batteries into the spec layer and delete them (their
behavior is now covered by spec): phase5 (hierarchies), phase6 (tagged
literals/reader-conditionals), phase7 (lazy/sets), phase8+phase12 (protocols;
phase12 was a duplicate of phase8), phase10 (strings/set), phase13
(reify/walk). Unique cases mined into spec: reader #inst/#uuid/#?@ splice,
(Type. args) dot constructor, lazy-seq body-runs-once, keywordize-keys/
stringify-keys, custom :default key and explicit :hierarchy dispatch.
phase6-final tested the COMPILE-MODE path ({:compile? true}), distinct from the
interpreter-based spec — kept and renamed integration/compile-mode-test.
jpm test green, conformance 218/218.
Final spec areas. Bugs caught and fixed:
- (def name docstring value) used the docstring as the value; now the 3-arg
docstring form binds the value and records :doc meta
- resolve was a nil stub; now a special form resolving a symbol to its var
(nil if unresolved). Added find-ns (non-creating lookup) and ns-name.
- in-ns didn't evaluate its arg, so (in-ns 'foo) failed; now evaluates it per
Clojure (the integration test's unquoted form updated to the quoted idiom)
- #(... %& ...) built %& as a positional param instead of a & rest param;
now emits (fn* [... & gen] ...) so %& captures the rest
Full public-API spec layer now in place. conformance 218/218, jpm test green.
