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lang F1 6: pack-spread in parameterized-type args (Combined($R, ..sources.T))

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Parser now accepts a `..` spread in a parameterized-type arg list; in
instantiateGenericStruct a spread arg bound to the variadic type-param expands
via packTypeElems (so `..sources.T` projects each source pack element protocol
type-arg into ..$Ts). `Combined(s64, ..sources.T)` for a VL(s64) source
instantiates Combined(s64, s64). examples/209 (with explicit per-element xx
erase). 244 examples + unit green.

Next: (..sources) whole-pack materialization with per-element erasure into the
protocol-typed field (c.sources = (..sources) currently segfaults).
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agra
2026-05-30 03:06:03 +03:00
parent 39d77ff886
commit e395a08331
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