2 Commits

Author	SHA1	Message	Date
giles	2727577702	VM import suspension for browser lazy loading ... Bytecode compiler now emits OP_PERFORM for (import ...) and compiles (define-library ...) bodies. The VM stores the import request in globals["__io_request"] and stops the run loop — no exceptions needed. vm-execute-module returns a suspension dict, vm-resume-module continues. Browser: sx_browser.ml detects suspension dicts from execute_module and returns JS {suspended, op, request, resume} objects. The sx-platform.js while loop handles cascading suspensions via handleImportSuspension. 13 modules load via .sxbc bytecode in 226ms (manifest-driven), both islands hydrate, all handlers wired. 2650/2650 tests pass including 6 new vm-import-suspension tests. Also: consolidated sx-platform-2.js → sx-platform.js, fixed vm-execute-module missing code-from-value call, fixed bootstrap.py protocol registry transpiler issues. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-04-04 17:11:12 +00:00
giles	1dd4c87d64	Step 5: CEK IO suspension + R7RS modules (define-library/import) ... Third CEK phase "io-suspended": perform suspends evaluation, host resolves IO, cek-resume feeds result back. VM OP_PERFORM (opcode 112) enables JIT-compiled functions to suspend. VM→CEK→suspend chain propagates suspension across the JIT/CEK boundary via pending_cek. R7RS define-library creates isolated environments with export control. import checks the library registry and suspends for unknown libraries, enabling lazy on-demand loading. Import qualifiers: only, prefix. Server-side cek_run_with_io handles suspension by dispatching IO requests to the Python bridge and resuming. guard composes cleanly with perform for structured error recovery across IO boundaries. 2598/2598 tests (30 new: 15 core suspension, 3 JIT, 1 cross-boundary, 9 modules, 2 error handling). Zero regressions. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-04-03 18:55:43 +00:00