Files
sx/examples/0142-types-nested-slice-literal-elements.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

45 lines
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// A nested array/slice literal (`.[.[1, 2], .[3, 4]]`) at an expected slice-of-
// slices type (`[][]i64`) materializes each inner `[N]T` literal as a real `[]T`
// slice, so indexing the inner slice in the callee reads element contents
// correctly — for both the local-bound form and the direct-call-argument form.
// Regression (issue 0085): inner literals were appended as raw `[N]T` arrays
// under an element type of `[]T`, so the outer aggregate's elements were arrays
// where slice {ptr,len} headers were expected; indexing the inner slice read a
// garbage pointer and segfaulted. The per-element array->slice materialization
// recurses with the nesting, so every level coerces.
#import "modules/std.sx";
sum_nested :: (xss: [][]i64) -> i64 {
total := 0;
i := 0;
while i < xss.len {
j := 0;
while j < xss[i].len { total += xss[i][j]; j += 1; }
i += 1;
}
return total;
}
count_x :: (xss: [][]string) -> i64 {
n := 0;
i := 0;
while i < xss.len {
j := 0;
while j < xss[i].len { if xss[i][j] == "x" { n += 1; } j += 1; }
i += 1;
}
return n;
}
main :: () {
// numeric [][]i64 — local-bound vs direct-arg both sum to 10.
local : [][]i64 = .[.[1, 2], .[3, 4]];
print("num local={}\n", sum_nested(local));
print("num direct={}\n", sum_nested(.[.[1, 2], .[3, 4]]));
// string [][]string — local-bound vs direct-arg both count 4 "x"s.
slocal : [][]string = .[.["x", "a"], .["b", "x"], .["x", "x"]];
print("str local={}\n", count_x(slocal));
print("str direct={}\n", count_x(.[.["x", "a"], .["b", "x"], .["x", "x"]]));
}