2 Commits

Author	SHA1	Message	Date
giles	5a03943b39	Split env-bind! from env-set!: fix lexical scoping and closures ... Two fundamental environment bugs fixed: 1. env-set! was used for both binding creation (let, define, params) and mutation (set!). Binding creation must NOT walk the scope chain — it should set on the immediate env. Only set! should walk. Fix: introduce env-bind! for all binding creation. env-set! now exclusively means "mutate existing binding, walk scope chain". Changed across spec (eval.sx, cek.sx, render.sx) and all web adapters (dom, html, sx, async, boot, orchestration, forms). 2. makeLambda/makeComponent/makeMacro/makeIsland used merge(env) to flatten the closure into a plain object, destroying the prototype chain. This meant set! inside closures couldn't reach the original binding — it modified a snapshot copy instead. Fix: store env directly as closure (no merge). The prototype chain is preserved, so set! walks up to the original scope. Tests: 499/516 passing (96.7%), up from 485/516. Fixed: define self-reference, let scope isolation, set! through closures, counter-via-closure pattern, recursive functions. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-15 11:38:35 +00:00
giles	1a3d7b3d77	Separate core spec from web framework ... Three-layer architecture: spec/ — Core language (19 files): evaluator, parser, primitives, CEK machine, types, continuations. Host-independent. web/ — Web framework (20 files): signals, adapters, engine, orchestration, boot, router, CSSX. Built on core spec. sx/ — Application (sx-docs website). Built on web framework. Split boundary.sx into boundary-core.sx (type-of, make-env, identical?) and boundary-web.sx (IO primitives, signals, spreads, page helpers). Bootstrappers search spec/ → web/ → shared/sx/ref/ for .sx files. Original files remain in shared/sx/ref/ as fallback during transition. All 63 tests pass. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-15 01:42:19 +00:00