d8076b9333
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.
Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).
Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.
zig build test: 426/426; examples suite: 595/595.
25 lines
1.2 KiB
Plaintext
25 lines
1.2 KiB
Plaintext
// Failable closure literals (ERR E5.1): a `closure(...)` literal may declare a
|
|
// failable return type — `-> (T, !)` / `-> !Named` — in both block and arrow
|
|
// body forms, and `raise` inside. Called directly through the bound local, the
|
|
// error channel is consumed by `catch` / `or`; passed as a `Closure(...)`
|
|
// parameter, it composes through the callee (here absorbed with `catch`).
|
|
// (A capturing closure into a bare `(T)->U` slot, and a failable closure into a
|
|
// non-failable slot, are rejected — see issue 0060 / the FFI-boundary rule.)
|
|
|
|
#import "modules/std.sx";
|
|
|
|
E :: error { Neg }
|
|
|
|
runwith :: (cb: Closure(i64) -> (i64, !E), n: i64) -> i64 { return cb(n) catch (e) -1; }
|
|
|
|
main :: () -> i32 {
|
|
// block-body and arrow-body failable closures, called directly
|
|
m := closure((x: i64) -> (i64, !E) { if x < 0 { raise error.Neg; } return x * 2; });
|
|
n := closure((x: i64) -> (i64, !E) => x + 1);
|
|
print("{} {} {} {}\n", m(5) catch (e) 0, m(-1) catch (e) 99, m(-1) or 7, n(40) catch (e) 0); // 10 99 7 41
|
|
|
|
// failable closure passed as a Closure(...) parameter
|
|
print("param ok={} err={}\n", runwith(m, 5), runwith(m, -1)); // 10 -1
|
|
return 0;
|
|
}
|