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.
41 lines
1.3 KiB
Plaintext
41 lines
1.3 KiB
Plaintext
// Backtick raw identifier as the error-tag binding of `catch` and `onfail`. A
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// reserved type-name spelling (`i2`, `u8`) is a value name when backticked, so
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// it is accepted as the tag binding and a later reference resolves to it. A
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// *bare* reserved spelling in the same position is still rejected (see
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// examples/1123), so the backtick escape is the only way to spell these tags.
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// Regression (issue 0089 — attempt-2 catch/onfail coverage).
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#import "modules/std.sx";
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E :: error { Bad, Empty }
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parse :: (n: i32) -> (i32, !E) {
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if n < 0 { raise error.Bad; }
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if n == 0 { raise error.Empty; }
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return n * 2;
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}
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// `catch` tag binding spelled `i2`, referenced in the match body.
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classify :: (n: i32) -> i32 {
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return parse(n) catch (`i2) == {
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case .Bad: 1;
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case .Empty: 2;
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else: 3
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};
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}
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// `onfail` tag binding spelled `u8`, referenced in the cleanup body.
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cleanup :: (n: i32) -> !E {
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onfail (`u8) { if `u8 == error.Bad { print("cleanup: bad\n"); } }
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if n < 0 { raise error.Bad; }
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return;
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}
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main :: () -> i32 {
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print("classify(-1) = {}\n", classify(-1));
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print("classify(0) = {}\n", classify(0));
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print("classify(5) = {}\n", classify(5));
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c := cleanup(-1);
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print("done\n");
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return 0;
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}
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