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sx/examples/diagnostics/1145-diagnostics-missing-struct-field-assign.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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// Assigning to a field that does not exist on a struct produces the same
// `field 'X' not found on type 'Y'` diagnostic as the read path (1100), and
// exits 1 — never the `.unresolved` LLVM-emission panic, never a silent store
// into a neighbouring field.
//
// Regression (issue 0094): the lvalue field lookup left `field_ty = .unresolved`
// (lowerAssignment's assignment-target path) or silently GEP'd field 0 as `.i64`
// (lowerExprAsPtr's fallback / lowerMultiAssign's struct loop), so a missing-field
// store either built a pointer-to-`.unresolved` that panicked at LLVM emission or
// silently wrote field 0. All three lvalue sites now emit the field-not-found
// diagnostic: the assignment-target path (`p.q`), the nested lvalue-pointer path
// (`o.missing.a`), and the multi-target store path (`p.r, y`).
Point :: struct { x: i64; }
Inner :: struct { a: i64; }
Outer :: struct { inner: Inner; }
main :: () -> i32 {
p := Point.{ x = 1 };
p.q = 2; // site 1: lowerAssignment target path
o := Outer.{ inner = Inner.{ a = 1 } };
o.missing.a = 5; // site 2: lowerExprAsPtr fallback
y : i64 = 0;
p.r, y = 3, 4; // site 3: lowerMultiAssign field path
return 0;
}