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sx/examples/diagnostics/1181-diagnostics-metatype-declare-never-defined.sx
agra 66bdc70bf1 test: group examples into per-category folders
Move examples/*.sx and their expected/ snapshots into per-category
subfolders (examples/<category>/...). Folder = leading filename token,
with ffi-objc/ffi-jni kept whole; filenames are unchanged. The corpus
runner and LSP sweep now discover each category's expected/ dir, while
issues/ stays flat. Example 1058's repo-root-relative companion import
is made file-relative. Path strings embedded in 164 snapshots were
regenerated (path-only changes). Test-layout docs in CLAUDE.md updated.
2026-06-21 14:41:34 +03:00

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// A `declare("X")` that is never completed by `define(handle, info)` is rejected
// loudly. `declare` mints an empty (undefined) nominal slot; without a matching
// `define` it has zero variants, which is never a usable type — sizing /
// constructing it would otherwise panic at codegen. The diagnostic names the
// type and points at the bare `declare` so the missing `define` is obvious.
#import "modules/std.sx";
#import "modules/std/meta.sx";
Undef :: declare("Undef"); // never define()d
main :: () -> i32 {
x : Undef = ---;
return 0;
}