b52d424369
git-mv the 10 foreign-named example families to extern/runtime-class names + update every #import/#include/#source ref, stale comment ref, and the 1172 stderr snapshot (path + 'extern symbol' message). Renames: 0729…-foreign→…-extern, 1172-diagnostics- foreign-symbol-conflict→…-extern-symbol-conflict, 1205/1207 ffi-foreign-global→ ffi-extern-global, 1216/1217 ffi-…-foreign-(in-method|result-chain)→…-extern-…, 1219-ffi-foreign→1219-ffi-extern, 1306 objc-foreign-class-chained→objc-runtime-class- chained, 1318 objc-property-foreign→objc-property-extern-class. DEDUP: deleted 1218-ffi-foreign-cvariadic (identical to 1229-ffi-extern-cvariadic; updated 1229's twin ref) + the orphaned 1620 dir. Also purged editors/vscode tmLanguage (#foreign dropped from the directive highlighter) + 1220.h/issues-0030.sx comment refs. Suite green (644 corpus / 443 unit, 0 failed).
27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
// `extern` C-variadic tail: a trailing `..args: []T` on an `extern` fn
|
|
// maps to the C calling convention's `...`. Extras at the call site pass through the variadic
|
|
// slot with standard default argument promotion (i8/i16/bool → i32,
|
|
// f32 → f64), NOT packed into an sx slice.
|
|
//
|
|
// Regression (FFI-linkage Part B): the `is_variadic` drop in
|
|
// `declareFunction` + the call-site early-out in `packVariadicCallArgs`
|
|
// were gated on `extern` only, so a migrated variadic `extern` lost
|
|
// its `...` tail and slice-packed the extras (garbage at the C ABI).
|
|
|
|
#import "modules/std.sx";
|
|
|
|
#import c {
|
|
#source "1229-ffi-extern-cvariadic.c";
|
|
};
|
|
|
|
sx_ext_sum_ints :: (n: i32, ..args: []i32) -> i64 extern;
|
|
sx_ext_avg_doubles :: (n: i32, ..args: []f64) -> f64 extern;
|
|
|
|
main :: () -> i32 {
|
|
print("sum_ints(3, 10, 20, 30) = {}\n", sx_ext_sum_ints(3, 10, 20, 30));
|
|
print("sum_ints(0) = {}\n", sx_ext_sum_ints(0));
|
|
print("avg_doubles(2) = {}\n", sx_ext_avg_doubles(2, 1.5, 2.5));
|
|
print("avg_doubles(3) = {}\n", sx_ext_avg_doubles(3, 1.0, 2.0, 3.0));
|
|
0
|
|
}
|