Four new primitives for scoped downward value passing and upward
accumulation through the render tree. Specced in .sx, bootstrapped
to Python and JS across all adapters (eval, html, sx, dom, async).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
New SX primitives for child-to-parent communication in the render tree:
- spread type: make-spread, spread?, spread-attrs — child injects attrs
onto parent element (class joins with space, style with semicolon)
- collect!/collected/clear-collected! — render-time accumulation with
dedup into named buckets
~cssx/tw is now a proper defcomp returning a spread value instead of a
macro wrapping children. ~cssx/flush reads collected "cssx" rules and
emits a single <style data-cssx> tag.
All four render adapters (html, async, dom, aser) handle spread values.
Both bootstraps (Python + JS) regenerated. Also fixes length→len in
cssx.sx (length was never a registered primitive).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Extend the type annotation system from defcomp-only to fn/lambda params:
- Infrastructure: sf-lambda, py/js-collect-params-loop, and bootstrap_py.py
now recognize (name :as type) in param lists, extracting just the name
- bootstrap_py.py: add _extract_param_name() helper, fix _emit_for_each_stmt
- 521 type annotations across 22 .sx spec files (eval, types, adapters,
transpilers, engine, orchestration, deps, signals, router, prove, etc.)
- Zero behavioral change: annotations are metadata for static analysis only
- All bootstrappers (Python, JS, G1) pass, 81/81 spec tests pass
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Two bugs fixed:
1. process-bindings used merge(env) which returns {} for Env objects
(Env is not a dict subclass). Changed to env-extend in render.sx
and adapter-async.sx. This caused "Undefined symbol: theme" etc.
2. async-aser-eval-call passed evaled-args list to async-invoke(&rest),
double-wrapping it. Changed to inline apply + coroutine check.
Also: bootstrap define-async into sx_ref.py (Phase 6), replace ~1000 LOC
hand-written async_eval_ref.py with 24-line thin re-export shim.
Test runner now uses Env (not flat dict) for render envs to catch scope bugs.
8 new regression tests (4 scope chain, 2 native callable arity, 2 render).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Fix qq-expand in eval.sx: use concat+list instead of append to prevent
nested lists from being flattened during quasiquote expansion
- Update append primitive to match spec ("if x is list, concatenate")
- Rebuild sx_ref.py with quasiquote fix
- Make relations.py self-contained: parse defrelation AST directly
without depending on the evaluator (25/25 tests pass)
- Replace hand-written JSEmitter with js.sx self-hosting bootstrapper
- Guard server-only tests in test-eval.sx with runtime check
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Configurable page shell (~sx-page-shell kwargs + SX_SHELL app config)
so each app controls its own assets — sx docs loads only sx-browser.js
- SX-evaluated sx-on:* handlers (eval-expr instead of new Function)
with DOM primitives registered in PRIMITIVES table
- data-init boot mode for pure SX initialization scripts
- Jiggle animation on links while fetching
- Nav: 3-column grid for centered alignment, is-leaf sizing,
fix map-indexed param order (index, item), guard mod-by-zero
- Async route eval failure now falls back to server fetch
instead of silently rendering nothing
- Remove duplicate h1 title from ~doc-page
- Re-bootstrap sx-ref.js + sx-browser.js
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Documents the self-hosting process for js.sx including the G0 bug
where Python's `if fn_expr` treated 0/False/"" as falsy, emitting
NIL instead of the correct value. Adds live verification page,
translation differences table, and nav entry.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
SX-to-JavaScript translator written in SX itself. When executed by the
Python evaluator against the spec files, produces output identical to
the hand-written bootstrap_js.py JSEmitter.
- 1,382 lines, 61 defines
- 431/431 defines match across all 22 spec files (G0 == G1)
- 267 defines in the standard compilation, 151,763 bytes identical
- camelCase mangling, var declarations, function(){} syntax
- Self-tail-recursive optimization (zero-arg → while loops)
- JS-native statement patterns: d[k]=v, arr.push(x), f.name=x
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
