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refactor(ffi-linkage): Phase 7.1 — migrate incidental 12xx ffi examples #foreign→extern

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12 plain-C examples that use #foreign incidentally (as FFI plumbing, output
unchanged): 1200/1206/1209-1215/1220/1221/1222. Blanket keyword swap; all fn/global
markers (no class forms in 12xx). Empty snapshot diff; corpus validates directly
(all marker'd). Suite green (647 corpus / 444 unit, 0 failed).

KEPT on #foreign (deferred to Phase 8 cutover): identity-#foreign feature tests
(filename ffi-foreign-*: 1205/1207/1216/1218/1219), the equivalence test 1228, and
the diagnostics that assert on #foreign source/message (1172/1174/1620). Comment-only
provenance prose (1223/1229/1230/1231) left intact per Decision-6-recommended.
This commit is contained in:
agra
2026-06-15 06:49:36 +03:00
parent d3425fa287
commit 731fb8de64
12 changed files with 47 additions and 47 deletions
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4
examples/1206-ffi-medium-struct.sx
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@@ -1,4 +1,4 @@
// 16-byte integer-only struct passed by value through `#foreign`.
// 16-byte integer-only struct passed by value through `extern`.
//
// emit_llvm.zig's `abiCoerceParamType` routes 9..16-byte non-HFA
// structs through `[2 x i64]` for register-pair passing on AAPCS64 /
@@ -22,7 +22,7 @@
Pair64 :: struct { a: i64; b: i64; }
ffi_pair64_swap :: (p: Pair64) -> Pair64 #foreign;
ffi_pair64_swap :: (p: Pair64) -> Pair64 extern;
main :: () -> i32 {
p : Pair64 = .{ a = 1, b = 2 };