giles 000f285ae8 Step 11: define-foreign FFI + transpiler mutable globals fix ...

FFI: define-foreign special form in evaluator — registry, param parser,
kwargs parser, binding resolver, type checker, lambda builder, dispatcher.
Generates callable lambdas that route through foreign-dispatch to host-call.
24 tests in test-foreign.sx (registry, parsing, resolution, type checking).

Transpiler: fix mutable global ref emission — ml-emit-define now emits
both X_ref = ref <init> and X_ = <init> for starred globals (was missing
the ref definition entirely, broke retranspilation). Add *provide-batch-depth*,
*provide-batch-queue*, *provide-subscribers* to mutable globals list.

Evaluator: add missing (define *provide-batch-queue* (list)) and
(define *provide-subscribers* (dict)) — were only in hand-edited sx_ref.ml.

Known: 36 bind-tracking + 8 capability test failures on retranspilation
(pre-existing transpiler local-ref shadowing bug, not caused by FFI).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-05 17:22:33 +00:00

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