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.
32 lines
1.1 KiB
Plaintext
32 lines
1.1 KiB
Plaintext
// Feature 1 — protocol-interface method calls on heterogeneous pack elements.
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//
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// `..xs: Greeter` binds per call shape; each `xs[i]` is the concrete element,
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// and calling the protocol's own method `greet()` on it dispatches to that
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// element's impl. Elements may be DIFFERENT concrete types (Dog, Cat) as long
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// as each conforms to Greeter — this is the protocol-interface access the
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// pack is for. (Protocol method decls omit the implicit `self`; impls list it.)
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#import "modules/std.sx";
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Greeter :: protocol {
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greet :: () -> i64;
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}
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Dog :: struct { age: i64; }
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Cat :: struct { lives: i64; }
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impl Greeter for Dog { greet :: (self: *Dog) -> i64 => self.age; }
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impl Greeter for Cat { greet :: (self: *Cat) -> i64 => self.lives * 100; }
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pair_sum :: (..xs: Greeter) -> i64 {
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return xs[0].greet() + xs[1].greet();
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}
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main :: () -> i32 {
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d := Dog.{ age = 3 };
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c := Cat.{ lives = 9 };
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print("dog+cat={}\n", pair_sum(d, c)); // 3 + 900 = 903 (heterogeneous)
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print("cat+dog={}\n", pair_sum(c, d)); // 900 + 3 = 903 (order swapped)
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print("dog+dog={}\n", pair_sum(d, Dog.{ age = 4 })); // 3 + 4 = 7
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0
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}
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