2 Commits

Author	SHA1	Message	Date
giles	2f3e727a6f	Transparent lazy module loading — code loads like data ... When the VM or CEK hits an undefined symbol, it checks a symbol→library index (built from manifest exports at boot), loads the library that exports it, and returns the value. Execution continues as if the module was always loaded. No import statements, no load-library! calls, no Suspense boundaries — just call the function. This is the same mechanism as IO suspension for data fetching. The programmer doesn't distinguish between calling a local function and calling one that needs its module fetched first. The runtime treats code as just another resource. Implementation: - _symbol_resolve_hook in sx_types.ml — called by env_get_id (CEK path) and vm_global_get (VM path) when a symbol isn't found - Symbol→library index built from manifest exports in sx-platform.js - __resolve-symbol native calls __sxLoadLibrary, module loads, symbol appears in globals, execution resumes - compile-modules.js extracts export lists into module-manifest.json - Playground page demonstrates: (freeze-scope) triggers freeze.sxbc download transparently on first use 2650/2650 tests pass. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-04-04 22:23:45 +00:00
giles	fc2b5e502f	Step 5p6 lazy loading + Step 6b VM transpilation prep ... Lazy module loading (Step 5 piece 6 completion): - Add define-library wrappers + import declarations to 13 source .sx files - compile-modules.js generates module-manifest.json with dependency graph - compile-modules.js strips define-library/import before bytecode compilation (VM doesn't handle these as special forms) - sx-platform.js replaces hardcoded 24-file loadWebStack() with manifest-driven recursive loader — only downloads modules the page needs - Result: 12 modules loaded (was 24), zero errors, zero warnings - Fallback to full load if manifest missing VM transpilation prep (Step 6b): - Refactor lib/vm.sx: 20 accessor functions replace raw dict access - Factor out collect-n-from-stack, collect-n-pairs, pad-n-nils helpers - bootstrap_vm.py: transpiles 9 VM logic functions to OCaml - sx_vm_ref.ml: proof that vm.sx transpiles (preamble has stubs) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-04-04 12:18:41 +00:00