When emitting metadata for a Swift-defined @objc protocol that has
provided a specific Objective-C name (e.g., via @objc(renamed)),
mangle such protocols using their Objective-C names so they can be
found at runtime.
Only do this for metadata, because doing it anywhere else would cause
an ABI break. Fixes rdar://problem/47877748.
To correctly call designated super class initializers the designated
intializer (and not the allocator) is dynamically replaceable.
Convenience allocators are dynamically replaceable as before.
yields in generalized accessors: _read and _modify, which are
yield-once corountines. This pass is based on the existing SIL verifier
checks but diagnoses only those errors that can be introduced by programmers
when using yields.
<rdar://43578476>
This is like '@inlinable', except that the symbol does not have a public
entry point in the generated binary at all; it is deserialized and a copy
is always emitted into the client binary, with shared linkage.
Just like '@inlinable', if you apply this to an internal declaration it
becomes '@usableFromInline' automatically.
This uses the same mechanism as default arguments ever since Swift 4, so
it should work reasonably well, but there are rough edges with diagnostics
and such. Don't use this if you are not the standard library.
Fixes <rdar://problem/33767512>, <https://bugs.swift.org/browse/SR-5646>.
Using an anonymous union in KeyPathPatternComponent instead of the weird void * in SetterAndIdKind
Added TupleElement kind to KeyPathComponentKindEncoding
Written basic SIL keypath serialization tests
Deleted or edited some old Swift-level tuple key path tests
Sorting of DeclContext-local protocols and conformances shouldn't ever
be necessary, because the underlying data structures that produce
these lists should be deterministic. Sorting can hide any
non-determinism, so stop doing it and we can address the underlying
nondeterminism.
For context, String, Nil, and Bool already behave this way.
Note: Before it used to construct (call, ... (integer_literal)), and the
call would be made explicit / implicit based on if you did eg: Int(3) or
just 3. This however did not translate to the new world so this PR adds
a IsExplicitConversion bit to NumberLiteralExpr. Some side results of
all this are that some warnings changed a little and some instructions are
emitted in a different order.
SILFunctionType has some logic which examines a selector and decides if it belongs to one of Objective-C’s special “method families”, like -alloc* and -copy*, which need to return a retained pointer instead of an autoreleased one. This change extracts most of that logic into SwiftAST as ObjCSelector::getSelectorFamily(), while leaving details specific to SIL’s use of it behind.
The bulk of the changes are to SILGenApply. As we must now evaluate the
payload ArgumentSource to an RValue, we follow the example of subscripts
and lie to the argument emitter. This evaluates arguments at +1 which
can lead to slightly worse codegen at -Onone.
The layouts of resilient value types shipped in the Swift 5 standard library
x and overlays will forever be frozen in time for backward deployment to old
Objective-C runtimes. This PR ensures that even if the layouts of these types
evolve in the future, binaries built to run on the old runtime will continue
to lay out class instances in a manner compatible with Swift 5.
Fixes <rdar://problem/45646886>.
If the access level of a protocol witness does not satisfies a requirement,
the compiler suggests marking it as the required level. This is not suitable
when the witness is in an extension whose specified access level is less than
the required level, since the fixit fights with other warnings in this case.
This patch identifies such case and produces improved diagnostics.
Resolves: SR-9793
* [diag] add a diagnostic note for the fixit
* [gsb] emit a diagnostic with fixit to replace ':' with '=='
* [gsb] rename variable
* [gsb] replace dyn_cast with isa
* [test] add a test case
* [test] update tests
* [gsb] emit diagnostic for protocols as well
* [gsb] simplify if statement
* [gsb] rename a variable
* [gsb] Create a helper to remove Self. prefix and add a new test case
* [gsb] simplify checks
* [gsb] move the diagnostic code to finalize()
* [gsb] re-indent
* [gsb] fix a typo
* [gsb] pass values as copy
* [gsb] show a fixit if the subject type is a member type
* [test] update diagnostics in existing tests
* [gsb] check if the subject type has an assoc type decl
* [gsb] use requirement source
* [test] add new tests
* [gsb] use constraint struct and rename to invalidIsaConstraints
