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9d3e54029a218ea5260c9c25c45eb5fee2cf332f
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9 Commits

Author SHA1 Message Date
giles
9d3e54029a js-on-sx: switch/case/default/break 
Parser: jp-parse-switch-stmt + jp-parse-switch-cases + jp-parse-switch-body.
AST: (js-switch discr (("case" val body) ("default" nil body) ...)).

Transpile: wraps body in (call/cc (fn (__break__) ...)). Each case
clause becomes (when (or __matched__ (js-strict-eq discr val))
(set! __matched__ true) body). Fall-through works naturally via
__matched__. Default appended as (when (not __matched__) body).

363/365 unit (+6), 148/148 slice unchanged.
 2026-04-23 21:04:22 +00:00
giles
275d2ecbae js-on-sx: String.prototype extensions + Object/Array builtins 
Strings: includes, startsWith, endsWith, trim, trimStart, trimEnd,
repeat, padStart, padEnd, toString, valueOf.

Object: keys, values, entries, assign, freeze (no-op).
Array: isArray, of.

All wired into js-global. 17 new unit tests.

357/359 unit (+17), 148/148 slice unchanged.
 2026-04-23 20:58:24 +00:00
giles
6c4001a299 js-on-sx: postfix + prefix ++/-- 
Parser: jp-parse-postfix emits (js-postfix op target) on trailing
++/--; jp-parse-primary emits (js-prefix op target) before the
unary -/+/!/~ branch.

Transpile: js-transpile-prefix → (set! name (+ (js-to-number name)
±1)) for idents, (js-set-prop obj key ...) for members/indices.
js-transpile-postfix caches old value in a let binding, updates,
returns the saved value.

340/342 unit (+11), 148/148 slice unchanged.
 2026-04-23 20:50:10 +00:00
giles
e0531d730c js-on-sx: drop top-level (define NaN) / (define Infinity) — SX parses those as numbers 2026-04-23 20:45:12 +00:00
giles
608a5088a4 js-on-sx: expanded Math + Number globals 
Math gains sqrt/pow/trunc/sign/cbrt/hypot plus LN2/LN10/LOG2E/
LOG10E/SQRT2/SQRT1_2 constants and full-precision PI/E.

Number global: isFinite/isNaN/isInteger/isSafeInteger plus
MAX_VALUE/MIN_VALUE/MAX_SAFE_INTEGER/MIN_SAFE_INTEGER/EPSILON/
POSITIVE_INFINITY/NEGATIVE_INFINITY/NaN.

Global isFinite, isNaN, Infinity, NaN. Wired into js-global.

329/331 unit (+21), 148/148 slice unchanged.
 2026-04-23 20:42:57 +00:00
giles
ce46420c2e js-on-sx: regex literal lex+parse+transpile+runtime stub 
Lexer: js-regex-context? disambiguates / based on prior token;
read-regex handles [...] classes and \ escapes. Emits
{:type "regex" :value {:pattern :flags}}.

Parser: new primary branch → (js-regex pat flags).

Transpile: (js-regex-new pat flags).

Runtime: js-regex? predicate, js-regex-new builds tagged dict with
source/flags/global/ignoreCase/multiline/sticky/unicode/dotAll/
hasIndices/lastIndex. js-regex-invoke-method dispatches .test/.exec/
.toString. js-invoke-method detects regex receivers. Stub engine
uses js-string-index-of; __js_regex_platform__ + override! let a
real engine plug in later.

Runner: repeatable --filter flags (OR'd).

308/310 unit (+30 regex tests), 148/148 slice unchanged.
 2026-04-23 20:27:19 +00:00
giles
8984520f05 js-on-sx: runner fix, 8-test smoke 3/7 (was 0/8) 
Agent committed before monitor-exit. Full tree still TODO.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-23 20:08:46 +00:00
giles
1613f551ef HS add/append: Set dedup, @attr support, when-clause result tracking 
- runtime hs-add-to!/hs-append: dedupe on list targets (Set semantics)
- compiler emit-set: set result to X now syncs it too
- compiler append!: handle (local)/(ref) targets via emit-set so scoped
  vars get rebound to the returned list
- parser add/remove: accept bare @attr (not just [@attr])
- parser add-attr: support when-clause → emits add-attr-when
- compiler add-class-when/add-attr-when: collect matched items into
  the-result / it so subsequent "if the result is empty" works

+6 upstream tests in early range (add 13→17, append 10→12).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-23 19:55:27 +00:00
giles
9e568ad886 js-on-sx: baseline commit (278/280 unit, 148/148 slice, runner stub) 
Initial commit of the lib/js/ tree and plans/ directory. A previous
session left template-string work in progress — 278/280 unit tests pass
(2 failing: tpl part-count off-by-one, escaped-backtick ident lookup).
test262-runner.py and scoreboard are placeholders (0/8 with 7 timeouts);
fixing the runner is the next queue item.
 2026-04-23 19:42:16 +00:00