averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

Allow Converting Pack Types to Tuples

Browse Source 
Insert an implicit conversion from pack types to tuples with equivalent parallel structure. That means

1) The tuple must have the same arity
2) The tuple may not have any argument labels
3) The tuple may not have any variadic or inout components
4) The tuple must have the same element types as the pack
This commit is contained in:
Robert Widmann
2021-12-16 01:15:19 -08:00
parent 0471e2c58e
commit d44d8ec043
8 changed files with 53 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
lib/Sema/ConstraintSystem.cpp
View File

@@ -5273,6 +5273,7 @@ ConstraintSystem::isConversionEphemeral(ConversionRestrictionKind conversion,
case ConversionRestrictionKind::ObjCTollFreeBridgeToCF:
case ConversionRestrictionKind::CGFloatToDouble:
case ConversionRestrictionKind::DoubleToCGFloat:
case ConversionRestrictionKind::ReifyPackToType:
// @_nonEphemeral has no effect on these conversions, so treat them as all
// being non-ephemeral in order to allow their passing to an @_nonEphemeral
// parameter.