Files
sx/examples/1002-errors-raise.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
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.
2026-06-12 09:31:53 +03:00

27 lines
1.1 KiB
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// First runnable `raise` (ERR step E1.3). A `-> !Named` (pure failable)
// function terminates via the error channel with `raise error.X`; a plain
// `return;` is the success exit (error slot 0). The caller binds the result
// and inspects it with the enum-like `==`. The value-carrying `-> (T, !)`
// shape lands with the error-channel tuple ABI in ERR phase E2.
#import "modules/std.sx";
ParseErr :: error { BadDigit, Overflow, Empty }
// Pure failable: raises on bad input, otherwise succeeds (error slot 0).
check :: (n: i32) -> !ParseErr {
if n < 0 { raise error.BadDigit; }
return; // success — no error
}
main :: () -> i32 {
good := check(7); // success path -> no error
bad := check(-1); // raise path -> BadDigit
r : i32 = 0;
if bad == error.BadDigit { r = r + 8; } // true -> +8
if good == error.BadDigit { r = r + 1; } // false (success = no error)
if bad == error.Overflow { r = r + 2; } // false (raised BadDigit)
print("raise result: {}\n", r); // -> 8
return r;
}