66d10c00bb
A self / forward / mutual reference inside a same-name struct shadow bound to
the FIRST same-name author (another module's struct) instead of its own nominal
TypeId: registerStructDecl resolved a shadow's field types BEFORE registering its
decl key in type_decl_tids, so namedRefTid fell through to the name-only
findByName first-author fallback (F1).
Fix: a genuine same-name struct shadow (≥2 DISTINCT struct decls author the name
in the scanned decl set) reserves ALL its authors' distinct nominal slots up-front
in scanDecls — the first at id 0, the rest at fresh nonzero ids — BEFORE any field
resolves. Every self / forward / mutual ref to the shadow name then resolves via
type_decl_tids to its OWN nominal TypeId.
Gating on the scanned decls, not nameHasMultipleTypeAuthors (the raw import facts
over-count a single file reached via two un-normalized import spellings, e.g.
math/matrix44), keeps single-real-decl names on the legacy id-0 post-field path —
byte-identical (494 prior markers unchanged, single-author old==new).
internNamedTypeDecl now takes the precomputed nominal_id; no-drift + single
graph-walk invariants untouched; generics / enum / union / error-set stay legacy.
Regressions: 0757 (self-ref *Box → reads B's own field), 0758 (forward + mutual
*Node/*Box between two shadows). Fail-before on d98ad5c
("field 'y'/'m' not found"), pass-after.
17 lines
813 B
Plaintext
17 lines
813 B
Plaintext
// issue 0105 / F1 regression — a SELF-REFERENCE inside a same-name struct shadow.
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// Two flat-imported modules each declare a top-level `Box`; module B's `Box` has
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// a field `next: *Box` referencing its own name. The shadow must resolve that
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// self-ref to ITS OWN nominal identity, not the first same-name author (A's
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// `Box`), so `head.next.*.y` reads B's `y` (= 42). Proves the reserve-before-
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// fields ordering: a shadow author's decl key is recorded before its fields are
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// resolved, so a self / forward ref binds via `type_decl_tids`, never the global
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// findByName first-author fallback.
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#import "modules/std.sx";
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#import "0757-modules-same-name-struct-self-ref/a.sx";
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#import "0757-modules-same-name-struct-self-ref/b.sx";
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main :: () -> s32 {
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print("a={} b={}\n", a_box(), b_chain());
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0
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}
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