[ConstraintSystem] Adjust the way pack parameters are opened #66910
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hborla
reviewed
Jun 24, 2023
Although variadic type is declared without `repeat` each of
its generic arguments is supposed to be a PackType which is
modeled in the interface type as `Pack{repeat ...}`. When
reference to such a type is opened by the constraint solver
we need to drop the Pack{repeat ...} structure because the
type variable would represent a pack type so `S<each T>`
is opened as `S<$T0>` instead of `S<Pack{repeat $T0}>`.
Resolves: swiftlang#66095
hborla
approved these changes
Jun 24, 2023
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@swift-ci please test |
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Thanks for the fix 🙏 |
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Although variadic type is declared without
repeateach of its generic arguments issupposed to be a PackType which is modeled in the interface type as
Pack{repeat ...}.When reference to such a type is opened by the constraint solver we need to drop the
Pack{repeat ...} structure because the type variable would represent a pack type so
S<each T>is opened asS<$T0>instead ofS<Pack{repeat $T0}>.Resolves: #66095