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
1.1 KiB
Plaintext
25 lines
1.1 KiB
Plaintext
// Error-set declarations + `error.X` tag values + enum-like `==` typing
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// (ERR step E1.1). A declared `error { ... }` set is a real type with a u32
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// runtime layout; `error.X` is its tag value — the named set when context
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// provides one (membership-checked), else the raw global u32 id. Tags compare
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// with an `error.X` literal or another error-set value. The rejections live in
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// `examples/218-error-set-typing.sx`.
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#import "modules/std.sx";
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ParseErr :: error { BadDigit, Overflow, Empty }
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main :: () -> i32 {
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c : ParseErr = error.BadDigit;
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d : ParseErr = error.Overflow;
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r : i32 = 0;
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if c == error.BadDigit { r = r + 1; } // true -> +1
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if c == error.Overflow { r = r + 2; } // false
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if c == d { r = r + 4; } // false (BadDigit != Overflow)
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if d == error.Overflow { r = r + 8; } // true -> +8
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tag : u32 = error.Empty; // u32 context -> raw global tag id
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if tag != 0 { r = r + 16; } // tag ids are >= 1 -> +16
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print("error-set result: {}\n", r); // -> 25
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return r;
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}
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