These bits are orthogonal to each other, so combine them into one, and diagnose attempts to produce a type that's both. Spot-fix a bunch of places this revealed by inspection that we would have crashed in SILGen or IRGen if blocks were be handled.
Swift SVN r16088
Replace HeapTypeInfo::hasSwiftRefcount with a "getSwiftRefcounting" method, returning an enum indicating whether a heap object has native/ObjC/block/unknown refcounting semantics. Use _Block_copy and _Block_release for block refcounting.
Swift SVN r16041
We can just get it from the instance type, if the instance type has been fully initialized, which is the case except during parsing of type decls when the decls' own types are being formed.
Swift SVN r15598
Centralize the logic for figuring out what name to use for a class or
protocol in the Objective-C runtime. When the flag is enabled (it's
still disabled by default), use mangled names for all Swift-defined
classes, including those that are @objc. Note that the naming is
determined in the AST, because we're also going to use this logic when
printing an Objective-C header for Clang's consumption. The mangled
names will always start with _Tt, so they're easy to recognize and
demangle in various tools or, eventually, in the Objective-C runtime.
The new test (test/IRGen/objc_mangling.sil) is the only test of this
behavior at the moment. The other test changes are due to the
centralized logic tweaking the names of internal constants (_DATA_*,
_CATEGORY_*, etc.).
This is the majority of <rdar://problem/15506580>.
Swift SVN r15588
in extended protocol meta-data. wip. Will have tests
when it is complete. // rdar://16308986
(note that you need the latest clang pulled or
your compile will fail).
Swift SVN r15270
accessors.
Optimize these accessors by making them check for
BoundGenericXType instead of BoundGenericType and dyn_cast'ing
the Decl. (The latter used to be necessary before we split
BoundGenericType.)
Swift SVN r15037
We should also remove it from IRGen's Explosion API; IRGen
should always use maximal explosion, and SILGen will tell us
whether or not we need to put that in memory somewhere.
But that can be a later commit.
Swift SVN r14242
We're mostly not that bad about this right now, but lazy
emission is going to wreak havoc.
Note that SILGen itself doesn't really make very good decisions
about the order in which to emit functions, but step one
towards fixing that is actually respecting it.
Swift SVN r14200
Introduce the SIL instructions thick_to_objc_metatype and
objc_to_thick_metatype to convert between the 'thick' and
'Objective-C' representations of a metatype. Most of this code is
trivial support code for these conversions: printing, parsing,
(de-)serialization, etc., for which testing will come online in
subsequent patches or is incidental in other tests.
Lower Objective-C metatype values down to objc_class* at the IR level
and implement IRGen support for these SIL instructions. SIL-only test
case at the moment because SILGen never creates these instructions.
Swift SVN r14087
Updates to signature expansion, entrypoint lowering, and callsite
lowering so that each selects the ABI types for all arguments at once
rather than an argument at a time (as well as considering whether the
return value is returned indirectly). This is required to get the
correct behavior in cases where we run out of argument registers and
need to pass arguments as indirect byvals.
This is mostly just refactoring existing code to move loops inside inner
functions as well as dealing with return values at the same time as
arguments.
Swift SVN r13781
There are some straggling references to the context generic param list, but nothing uses the non-interface param or result types anymore!
Swift SVN r13725
Lower types for SILDeclRefs from the interface types of their referents, dragging the old type along for the ride so we can still offer the context to clients that haven't been weaned off of it. Make SILFunctionType's interface types and generic signature independent arguments of its Derive the context types of SILFunctionType from the interface types, instead of the other way around. Do a bunch of annoying inseparable work in the AST and IRGen to accommodate the switchover.
Swift SVN r12536
When we're using Objective-C's memory allocation, emit .cxx_construct
methods whenever we have instance variables with in-class
initializers. Presently, these methods are just empty stubs.
Swift SVN r12211
The Objective-C runtime executes the .cxx_destruct method after the
last -dealloc has executed when destroying an object, allowing the
instance variables to remain live even after the subclass's
destructor/-dealloc has executed, which is important for memory
safety. This fixes the majority of <rdar://problem/15136592>.
Note that IRGenModule::getAddrOfIVarDestroyer() contains an egregious
hack to find the ivar destructor SIL function via a linear
search. We need a better way to find SIL functions that we know exist,
because LinkEntity does not suffice.
Swift SVN r12206
The Swift entry point is required for the Swift metadata, while the
Objective-C entry point goes into the Objective-C metadata. As part of
this, stop emitting the destroying destructor for classes that use
Objective-C allocation: it won't work anyway.
Swift SVN r12199
Because Objective-C doesn't have the notion of a destroying
destructor, this is a matter of cleanliness rather than
correctness. Still, it's better not to lie.
Swift SVN r12160
swift version of ObjectiveC metadata. Currently,
GenClangType is missing all interesting types so,
this patch doesn't do much (and therefor no tests).
Swift SVN r12159
SILDeclRef was previously storing the ClassDecl for this case, because
semantic analysis didn't guarantee that a DestructorDecl was always
present. It is now, and this representation makes more sense.
Swift SVN r12122
IRGen type conversion is invariant with respect to archetypes with the same set of constraints, so instead of redundantly generating a TypeInfo object and IR type for Optional<T> for every T everywhere, key TypeInfo objects using an "exemplar type" that we form using a folding set to collapse together archetypes with the same class-ness, superclass constraint, and protocol constraints.
This is a nice memory and IR size optimization, but will be essential for correctness when lowering interface types, because there is no unique context to ground a dependent type, and we need to lower the same generic parameter with the same context requirements to the same type whenever we instantiate it in order for the IR to type-check.
In this revision, we profile the nested archetypes of each recursively, which I neglected to take into account originally in r12112, causing failures when archetypes that differed by associated type constraints were incorrectly collapsed.
Swift SVN r12116
Teach SILGen to emit a -dealloc method that runs user code, destroys
instance variables, and then calls up to the superclass dealloc. Teach
IRGen to deal with Objective-C destructor methods and add -dealloc to
the instance method table.
There are a few things still wrong here: we're emitting both a Swift
destructor and -dealloc, even though only one of them should ever
actually be used. Additionally, instance variables shouldn't be
destroyed in -dealloc, but in .cxx_destruct, so they persist until the
last of the -dealloc methods is invoked.
Swift SVN r12115
IRGen type conversion is invariant with respect to archetypes with the same set of constraints, so instead of redundantly generating a TypeInfo object and IR type for Optional<T> for every T everywhere, key TypeInfo objects using an "exemplar type" that we form using a folding set to collapse together archetypes with the same class-ness, superclass constraint, and protocol constraints.
This is a nice memory and IR size optimization, but will be essential for correctness when lowering interface types, because there is no unique context to ground a dependent type, and we need to lower the same generic parameter with the same context requirements to the same type whenever we instantiate it in order for the IR to type-check.
Swift SVN r12112
