- Separate out a uniquable KeyPathPattern that describes the context-free shape of the key path, with generic parameters and (eventually) subscript index slots factored out.
- Add component kinds for gettable and settable properties.
The new API is broken. Popping a generic context frees all
dependent type lowerings, so this function returns a pointer
to freed memory.
This reverts commit 24dfae0716.
Also, add a third [serializable] state for functions whose bodies we
*can* serialize, but only do so if they're referenced from another
serialized function.
This will be used for bodies synthesized for imported definitions,
such as init(rawValue:), etc, and various thunks, but for now this
change is NFC.
What is happening here is that we are performing a select_enum check and then
not emitting the cleanup on the path where we know that our optional value is
null. To express such an operation in semantic sil, one should use a switch_enum
instead. Thus we must insert the destroy_value so that we know that the optional
value is balanced along all paths.
rdar://31145255
This structure contains all of the type information that we use to build a
ResultPlanPtr. In a subsequent commit, I am going to move ResultPlanPtr creation
out of emitApply and place it before the creation of arguments. This is to
enable indirect result initializations to belong to the scope outside of any
argument based scopes.
Without this the lifetimes of the indirect result initializations and arguments
can not be separated without using hacks. There is no reason why we can't emit
the indirect result temporaries before we emit any arguments since they will
remain dormant until after the final apply/any future committed argument scopes
being popped.
rdar://30955427
Change emitApplyOfLibraryIntrinsic() to take a SubstitutionMap,
and use the correct abstractions to build the map.
This gets rid of the last remaining uses of gatherAllSubstitutions()
in SIL.
As per John, WritebackScope was always an unfortunate name. Generally these
scopes are meant for formal evaluations of inout parameters. The cases that I am
interested in generalizing them to be used for are borrows of the base of a
class that will then be used as an lvalue.
This also eliminates the out of line vector of lvalue writebacks.
rdar://29791263
SubstitutionList is going to be a more compact representation of
a SubstitutionMap, suitable for inline allocation inside another
object.
For now, it's just a typedef for ArrayRef<Substitution>.
In all cases except where phi arguments are concerned, we suppress the usage of
additional begin_borrow, end_borrow.
This just makes the SIL look a bit cleaner. There is no semantic difference.
rdar://29791263
These APIs were incorrectly using SILType.getSwiftRValueType() and calling
getTypeLowering. This is the correct way to get the typelowering of an already
lowered type that is used on a SILValue inside of a function.
