f2db8ecc53
BoxAlias :: Box; / Box :: r.Box; now resolve instantiation, methods,
annotations, and chains through the aliased template, and re-export one
flat-import level as ordinary own decls (the facade shape the std.sx
restructure needs). selectGenericStructHead consults aliasedStructTemplate
(nominal.zig) before the global template map — own-wins/single-flat alias
author, each hop pinned to the alias author's source, ns.X RHS through
namespaceAliasVerdictFrom, depth-capped. resolveTypeCallWithBindings'
silent .unresolved tail (panicked in LLVM emission) now diagnoses
"unknown type". Also aligns the stale pre-existing calls.test.zig UFCS
plan test with the opt-in model (a47ea14). Regression: examples/0211
(+rich/+facade). Gates: zig build test 426/426, suite 587/587.
44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
// Generic-struct head aliases: `BoxAlias :: Box;` binds the alias to the
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// SAME template — instantiation, methods, annotations, and alias chains all
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// resolve through it. Cross-module, a facade's `Box :: r.Box;` re-export is
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// the facade's OWN declaration, so it carries one flat-import level exactly
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// like a plain-struct alias (companion files: -rich.sx authors the decls,
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// -facade.sx re-exports them through a namespace alias).
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// Regression (issue 0120): the alias head used to lower silently to an
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// unresolved type and panic in the LLVM backend at instantiation.
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#import "modules/std.sx";
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#import "0211-generics-struct-alias-head-facade.sx";
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LocalBox :: struct ($T: Type) {
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item: T;
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get :: (b: *LocalBox(T)) -> T { b.item }
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}
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LocalAlias :: LocalBox;
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ChainAlias :: LocalAlias;
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main :: () {
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// Same-file alias: instantiation + field + method.
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b := LocalAlias(s64).{ item = 3 };
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print("field: {}\n", b.item);
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print("method: {}\n", b.get());
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// Alias chain terminates at the template.
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c := ChainAlias(s64).{ item = 11 };
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print("chain: {}\n", c.item);
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// Alias as a type annotation head.
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a : LocalAlias(string) = .{ item = "ann" };
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print("annot: {}\n", a.item);
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// Cross-module re-exports carried one flat hop from the facade:
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// plain fn, plain struct (static method), and the generic head.
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print("helper: {}\n", helper());
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t := Thing.init();
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print("thing: {}\n", t.v);
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f := Box(s64).{ item = 7 };
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print("facade: {}\n", f.get());
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x : Box(string) = .{ item = "qq" };
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print("facade-annot: {}\n", x.item);
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}
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