4 Commits

Author	SHA1	Message	Date
giles	ca8de3be1a	Make continuations an optional extension, add special-forms.sx, ellipsis parsing ... - Both bootstrappers (JS + Python) now gate shift/reset behind --extensions continuations flag. Without it, using reset/shift errors at runtime. - JS bootstrapper: extracted Continuation/ShiftSignal types, sfReset/sfShift, continuation? primitive, and typeOf handling into CONTINUATIONS_JS constant. Extension wraps evalList, aserSpecial, and typeOf post-transpilation. - Python bootstrapper: added special-forms.sx validation cross-check against eval.sx dispatch, warns on mismatches. - Added shared/sx/ref/special-forms.sx: 36 declarative form specs with syntax, docs, tail-position, and examples. Used by bootstrappers for validation. - Added ellipsis (...) support to both parser.py and parser.sx spec. - Updated continuations essay to reflect optional extension architecture. - Updated specs page and nav with special-forms.sx entry. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-06 01:44:50 +00:00
giles	04366990ec	Enforce SX boundary contract via boundary.sx spec + runtime validation ... Add boundary.sx declaring all 34 I/O primitives, 32 page helpers, and 9 allowed boundary types. Runtime validation in boundary.py checks every registration against the spec — undeclared primitives/helpers crash at startup with SX_BOUNDARY_STRICT=1 (now set in both dev and prod). Key changes: - Move 5 I/O-in-disguise primitives (app-url, asset-url, config, jinja-global, relations-from) from primitives.py to primitives_io.py - Remove duplicate url-for/route-prefix from primitives.py (already in IO) - Fix parse-datetime to return ISO string instead of raw datetime - Add datetime→isoformat conversion in _convert_result at the edge - Wrap page helper return values with boundary type validation - Replace all SxExpr(f"...") patterns with sx_call() or _sx_fragment() - Add assert declaration to primitives.sx Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-05 23:50:02 +00:00
giles	a9526c4fa1	Update reference SX spec to match sx.js macros branch (CSSX, dict literals, new primitives) ... - eval.sx: Add defstyle, defkeyframes, defhandler special forms; add ho-for-each - parser.sx: Add dict {...} literal parsing and quasiquote/unquote sugar - primitives.sx: Add parse-datetime, split-ids, css, merge-styles primitives - render.sx: Add StyleValue handling, SVG filter elements, definition forms in render, fix render-to-html to handle HTML tags directly - bootstrap_js.py: Add StyleValue type, buildKeyframes, isEvery platform helper, new primitives (format-date, parse-datetime, split-ids, css, merge-styles), dict/quasiquote parser, expose render functions as primitives - sx-ref.js: Regenerated — 132/132 tests passing Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-05 10:17:28 +00:00
giles	235428628a	Add reference SX evaluator written in s-expressions ... Meta-circular evaluator: the SX language specifying its own semantics. A thin bootstrap compiler per target (JS, Python, Rust) reads these .sx files and emits a native evaluator. Files: - eval.sx: Core evaluator — type dispatch, special forms, TCO trampoline, lambda/component/macro invocation, higher-order forms - primitives.sx: Declarative specification of ~80 built-in pure functions - render.sx: Three rendering modes (DOM, HTML string, SX wire format) - parser.sx: Tokenizer, parser, and serializer specification Platform-specific concerns (DOM ops, async I/O, HTML emission) are declared as interfaces that each target implements. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-05 09:31:40 +00:00