swift-mirror

mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00

Files

Robert Widmann 42c59554a0 Introduce the Space Engine

Implement exhaustiveness checking in Sema with rich error messages.  The
algorithm used is a variant of the one described in Fengyun Liu's paper
"A Generic Algorithm for Checking Exhaustivity of Pattern Matching"
published in the EPFL conference, and Luc Maranget's seminal paper
"Warnings for Pattern Matching"

The Space Engine views pattern matching as a problem of projecting the
scrutinee of a pattern-match into a "Space", then iteratively
constructing a Space from the cases.  Taking the difference of this
master space and the covered spaces yields the "holes" left over or
reveals a completely covered space.

The algorithm also extends trivially to redundancy checks in patterns,
but that check is already implemented in SILGen and this algorithm does
not improve upon it.

2017-04-28 02:06:39 -04:00

AccessEnforcementSelection.cpp

[Exclusivity] AccessMarkerEnforcementSelection support for unpaired markers.

2017-04-26 09:02:34 -07:00

AccessMarkerElimination.cpp

[Exclusivity] Allow testing the -Onone pipeline with access markers.

2017-04-26 17:32:48 -07:00

AddressLowering.cpp

[gardening] Eliminate unused variable warnings from non-asserts build.

2017-04-24 16:08:06 -07:00

CMakeLists.txt

[semantic-sil] Copy DIMemoryUseCollector.{cpp,h} => DIMemoryUseCollectorOwnership.{cpp,h} so I can update the passes that use this functionality one at a time.