c2178c062b
Class-pair init constructor now registers a single hidden ivar on each sx-defined class: class_addIvar(cls, "__sx_state", 8, 3, "^v") before objc_registerClassPair. After the class is registered, the constructor calls class_getInstanceVariable to fetch the runtime Ivar handle and stores it in a per-class global '__<ClassName>_state_ivar : *void'. Trampolines (A.4b.ii) will read this global to 'object_getIvar' the state struct pointer. lower.zig declares the per-class global at scan time (declareObjcDefinedStateIvarGlobal) so emit_llvm finds it by name when populating. Encoding '^v' = void* (a generic pointer — the runtime treats it as opaque storage). log2 alignment = 3 for 8-byte pointer alignment on 64-bit. 144-objc-class-ivar-registration.sx exercises the round-trip: after main starts, class_getInstanceVariable(SxFoo, "__sx_state") returns non-null. Runs against the real Obj-C runtime on macOS. 142's IR snapshot refreshed to include the new constructor body (class_addIvar + class_getInstanceVariable + ivar-global store). 173 example tests pass (+1 from 144). zig build test green.
2 lines
2 B
Plaintext
2 lines
2 B
Plaintext
0
|