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refactor(ffi-linkage): Phase 7.4 — migrate straggler examples #foreign→extern

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16 fn/global examples across categories (0415/0602/0603/1024/1025/1605/1607-1609/
1611/1616/1619/1622/1628/1635/1636): bare '#foreign'→'extern'. All cls=0 (no class
forms). Marker'd ones (1605/1609/1611 + the rest) corpus-validated; the 3 unmarked
uikit importers (1607/1608/1616) verified byte-identical via 'sx ir' probes.
Empty snapshot diff; suite green (647 corpus / 444 unit, 0 failed).

LEFT comment-only/provenance #foreign (0716/0729 + issues/0030-extern-global +
extern-test files 1223-1231/1332/1348/1349/1426) and the keep-list (identity
ffi-foreign-* + foreign-asserting diagnostics 1172/1174/1219/1228/1620) for Phase 8.
This commit is contained in:
agra
2026-06-15 07:03:53 +03:00
parent 2888f6fc00
commit 1a8991ab27
16 changed files with 21 additions and 21 deletions
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2
examples/0415-protocols-protocols.sx
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@@ -198,7 +198,7 @@ sm_first :: (a: i32, b: i32) -> (i32, !) {
// --- Foreign function binding ---
libc :: #library "c";
c_abs :: (n: i32) -> i32 #foreign libc "abs";
c_abs :: (n: i32) -> i32 extern libc "abs";
// --- Protocol declarations (Phase 1: static dispatch only) ---

4
examples/0602-comptime-interp-cast-ptr-cmp.sx
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@@ -7,8 +7,8 @@
#import "modules/build.sx";
libc :: #library "c";
popen :: (cmd: [:0]u8, mode: [:0]u8) -> *void #foreign libc;
puts :: (s: [:0]u8) -> i32 #foreign libc;
popen :: (cmd: [:0]u8, mode: [:0]u8) -> *void extern libc;
puts :: (s: [:0]u8) -> i32 extern libc;
R :: struct { x: i32; }

2
examples/0603-comptime-interp-variadic-any.sx
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@@ -8,7 +8,7 @@
#import "modules/std.sx";
#import "modules/build.sx";
puts :: (s: [:0]u8) -> i32 #foreign libc;
puts :: (s: [:0]u8) -> i32 extern libc;
cb :: () -> bool {
a := format("{}", "x");

2
examples/1024-errors-trace-buffer.sx
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@@ -9,7 +9,7 @@
#import "modules/std.sx";
// Internal runtime symbol (library/vendors/sx_trace_runtime/sx_trace.c).
sx_trace_len :: () -> u32 #foreign;
sx_trace_len :: () -> u32 extern;
E :: error { Bad }

2
examples/1025-errors-trace-format.sx
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@@ -12,7 +12,7 @@
trace :: #import "modules/std/trace.sx";
// Buffer length probe (the runtime symbol; public read API is the trace module).
sx_trace_len :: () -> u32 #foreign;
sx_trace_len :: () -> u32 extern;
E :: error { BadInput, Overflow }

4
examples/1605-platform-frameworks.sx
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@@ -1,10 +1,10 @@
// `#framework "Name"` top-level directive registers an Apple framework for
// linking; `#foreign` declarations can omit the library identifier (frameworks
// linking; `extern` declarations can omit the library identifier (frameworks
// resolve symbols by global namespace at link time).
#framework "CoreFoundation";
CFAbsoluteTimeGetCurrent :: () -> f64 #foreign;
CFAbsoluteTimeGetCurrent :: () -> f64 extern;
main :: () -> i32 {
t := CFAbsoluteTimeGetCurrent();

2
examples/1607-platform-uikit-app.sx
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@@ -16,7 +16,7 @@
#framework "UIKit";
UIApplicationMain :: (argc: i32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> i32 #foreign;
UIApplicationMain :: (argc: i32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> i32 extern;
// IMP for application:didFinishLaunchingWithOptions:
// Obj-C: -(BOOL)application:(UIApplication *)app didFinishLaunchingWithOptions:(NSDictionary *)opts

2
examples/1608-platform-uikit-window.sx
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@@ -18,7 +18,7 @@
#framework "UIKit";
UIApplicationMain :: (argc: i32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> i32 #foreign;
UIApplicationMain :: (argc: i32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> i32 extern;
g_window : *void = ---;

2
examples/1609-platform-add-framework.sx
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@@ -12,7 +12,7 @@ configure_build :: () {
}
#run configure_build();
CFAbsoluteTimeGetCurrent :: () -> f64 #foreign;
CFAbsoluteTimeGetCurrent :: () -> f64 extern;
main :: () -> i32 {
t := CFAbsoluteTimeGetCurrent();

2
examples/1611-platform-post-link-callback.sx
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@@ -8,7 +8,7 @@
// runner is `runtime main`. The post-link path is exercised via
// `sx build` separately.
puts :: (s: [:0]u8) -> i32 #foreign libc;
puts :: (s: [:0]u8) -> i32 extern libc;
post_link :: () -> bool {
puts("[post-link] callback fired");

2
examples/1616-platform-ios-device-bundle.sx
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@@ -22,7 +22,7 @@
#framework "UIKit";
UIApplicationMain :: (argc: i32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> i32 #foreign;
UIApplicationMain :: (argc: i32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> i32 extern;
#import "modules/build.sx";
#import "modules/platform/bundle.sx";

4
examples/1619-cimport-source-only.sx
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@@ -1,6 +1,6 @@
// Pins the curated-bindings shape (PLAN-C C0.2): a `#source`-only unit
// (no `#include`, so no auto-synthesized decls) paired with a
// hand-written `#foreign` decl naming the unit. Works in JIT and AOT
// hand-written `extern` decl naming the unit. Works in JIT and AOT
// today — but see 1620: the unit ref is not yet validated or scoped,
// so the symbol actually resolves globally, not through the unit.
#import "modules/std.sx";
@@ -9,7 +9,7 @@ only :: #import c {
#source "1619-cimport-source-only/only.c";
};
only_answer :: () -> i32 #foreign only "only_answer";
only_answer :: () -> i32 extern only "only_answer";
main :: () -> i32 {
print("answer = {}\n", only_answer() + 1);

4
examples/1622-cimport-unit-bound-defines.sx
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@@ -1,5 +1,5 @@
// `#define`/`#flags` reach a unit whose ONLY consumer is hand-curated
// `#foreign` decls (PLAN-C C3.3) — no `#include`, no auto-synthesis:
// `extern` decls (PLAN-C C3.3) — no `#include`, no auto-synthesis:
// the macro decides what the unit-bound decl answers.
#import "modules/std.sx";
@@ -9,7 +9,7 @@ unit :: #import c {
#source "1622-cimport-unit-bound-defines/unit.c";
};
unit_answer :: () -> i32 #foreign unit "unit_answer";
unit_answer :: () -> i32 extern unit "unit_answer";
main :: () -> i32 {
print("unit answer = {}\n", unit_answer());

2
examples/1628-cimport-duplicate-export.sx
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@@ -12,7 +12,7 @@ ub :: #import c {
#source "1628-cimport-duplicate-export/b.c";
};
clash :: () -> i32 #foreign ua "clash";
clash :: () -> i32 extern ua "clash";
main :: () -> i32 {
print("{}\n", clash());

2
examples/1635-cfnptr-qsort.sx
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@@ -3,7 +3,7 @@
#import "modules/std.sx";
clib :: #library "c";
qsort :: (base: [*]u8, nel: usize, width: usize, compar: (*void, *void) -> i32 callconv(.c)) #foreign clib;
qsort :: (base: [*]u8, nel: usize, width: usize, compar: (*void, *void) -> i32 callconv(.c)) extern clib;
cmp_i32 :: (a: *void, b: *void) -> i32 callconv(.c) {
pa : *i32 = xx a;

4
examples/1636-cfnptr-pthread-reentry.sx
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@@ -5,8 +5,8 @@
#import "modules/std.sx";
clib :: #library "c";
pthread_create :: (thread: *usize, attr: *void, start: (*void) -> *void callconv(.c), arg: *void) -> i32 #foreign clib;
pthread_join :: (thread: usize, retval: **void) -> i32 #foreign clib;
pthread_create :: (thread: *usize, attr: *void, start: (*void) -> *void callconv(.c), arg: *void) -> i32 extern clib;
pthread_join :: (thread: usize, retval: **void) -> i32 extern clib;
entry :: (arg: *void) -> *void callconv(.c) {
p : *i64 = xx arg;