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.
56 lines
1.8 KiB
Plaintext
56 lines
1.8 KiB
Plaintext
// Tuple values: construction, element access, struct-field storage,
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// return, and operators. Regression for the tuple-construction bug where
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// an inferred `:=` tuple literal lowered its element values under the
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// enclosing fn's (narrower) return `target_type`, mismatching the
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// independently-inferred i64 field types and yielding garbage on read.
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#import "modules/std.sx";
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Box :: struct { xs: (i32, i32); }
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swap :: (a: i64, b: i64) -> (i64, i64) { (b, a) }
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fst :: (t: (i64, i64)) -> i64 { t.0 }
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main :: () -> i32 {
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// Inferred positional tuple + numeric field access.
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pair := (40, 2);
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print("pair {} {}\n", pair.0, pair.1);
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// Named tuple: named + numeric access.
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named := (x: 10, y: 20);
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print("named {} {} {}\n", named.x, named.0, named.1);
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// Element into a typed local (access path, not just print).
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a : i64 = pair.0;
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b : i64 = pair.1;
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print("locals {} {}\n", a, b);
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// Tuple-typed struct field: store a tuple value, read both elements.
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box : Box = ---;
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box.xs = (7, 9);
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print("field {} {}\n", box.xs.0, box.xs.1);
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// Return a tuple from a function.
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s := swap(1, 2);
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print("ret {} {}\n", s.0, s.1);
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// Pass a tuple by value.
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print("pass {}\n", fst((11, 22)));
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// Operators: equality, concatenation, repetition, membership, lex.
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print("eq {}\n", (1, 2) == (1, 2));
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c := (1, 2) + (3, 4);
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print("concat {} {}\n", c.0, c.3);
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r := (1, 2) * 3;
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print("rep {} {}\n", r.0, r.5);
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print("mem {}\n", 3 in (1, 2, 3));
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print("lex {}\n", (1, 2) < (1, 3));
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// Mixed-size fields: a tuple with both an i64 and a string (16-byte fat
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// pointer). Field types are tracked per-position, so reading each back is
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// typed correctly (i64 prints as a number, string as text).
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mixed := (42, "hi");
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print("mixed {} {}\n", mixed.0, mixed.1);
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0
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}
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