811a280517
src/: ~21 capital-Foreign comments the case-sensitive verify grep missed (Foreign-class→Runtime-class, Foreign path→Runtime path, Foreign decls→Extern decls, FOREIGN function→extern function) across calls/inst/ffi_objc/jni_descriptor/emit_llvm/ c_import/lower.*/ops. src 'foreign' now = ONLY the hash_foreign token + 4 rejection messages (9.0-delete targets). examples/*.sx comments → extern/runtime-class (1219 stdout regen; KEPT 1176). docs/inline-asm-design + debugger purged. Comments only — no build impact. 9.0 ratified: DELETE hash_foreign token next.
33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
// Extern data globals via `<name> : <type> extern;`. Lets sx code
|
|
// reference libSystem / framework symbols (NSConcreteStackBlock,
|
|
// __stdinp, etc.) for FFI bridges. Mirrors the long-standing
|
|
// `<fn> :: (...) -> ... extern;` form on the function side.
|
|
//
|
|
// Cross-file dimension (PLAN-FFI step 0.10): the helper companion
|
|
// `94-foreign-global-helper.sx` ALSO declares `__stdinp : *void extern;`.
|
|
// Both files referencing the same extern symbol must link cleanly —
|
|
// LLVM dedupes the named global, the C linker resolves both refs to
|
|
// the one libSystem symbol.
|
|
//
|
|
// We *don't* check that the helper computes the same address — see
|
|
// issue-0037 (helper-function-scoped `@extern_global` lowers to
|
|
// undef today). When that fixes, fold the helper's address back into
|
|
// the equality check here.
|
|
|
|
#import "modules/std.sx";
|
|
#import "1205-ffi-foreign-global-helper.sx";
|
|
|
|
__stdinp : *void extern;
|
|
|
|
main :: () -> i32 {
|
|
addr_bits : u64 = xx @__stdinp;
|
|
print("stdin extern global non-null: {}\n", addr_bits != 0);
|
|
// Force the helper symbol to participate in linking (otherwise the
|
|
// imported file's #extern decl might get dropped by the
|
|
// dead-code stripper). The actual return value is busted today
|
|
// — see issue-0037.
|
|
_ := stdinp_addr_present();
|
|
print("helper file linked: true\n");
|
|
0
|
|
}
|