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.
33 lines
1.2 KiB
Plaintext
33 lines
1.2 KiB
Plaintext
// First runnable `try` (ERR step E1.4a). The STANDALONE form: a failable
|
|
// expression whose failure propagates to the enclosing function's error
|
|
// return (Zig-style). `outer` calls `try inner(n)` — on `inner`'s failure
|
|
// `outer` returns that error; on success it continues. Both are pure
|
|
// failable (`-> !E`). The error-channel tuple ABI for value-carrying
|
|
// `-> (T, !)` and `try` in an `or` chain land in ERR E1.4b/E2.
|
|
|
|
#import "modules/std.sx";
|
|
|
|
E :: error { Bad, Worse }
|
|
|
|
inner :: (n: i32) -> !E {
|
|
if n < 0 { raise error.Bad; }
|
|
return; // success — no error
|
|
}
|
|
|
|
// Propagates inner's error (standalone `try`, target = function return).
|
|
outer :: (n: i32) -> !E {
|
|
try inner(n);
|
|
return;
|
|
}
|
|
|
|
main :: () -> i32 {
|
|
bad := outer(-1); // inner raises Bad -> outer propagates
|
|
good := outer(7); // inner succeeds -> outer succeeds
|
|
r : i32 = 0;
|
|
if bad == error.Bad { r = r + 5; } // true -> +5
|
|
if good == error.Bad { r = r + 1; } // false (success = no error)
|
|
if bad == error.Worse { r = r + 2; } // false (propagated Bad)
|
|
print("try result: {}\n", r); // -> 5
|
|
return r;
|
|
}
|