Generalize the implementation of opaque type declarations to maintain
the "ordinal", which represents a particular "some" utterance in a
structural opaque type, throughout more of the compiler.
The ordinal value for a given "some" matches with the index of the
corresponding generic parameter in the opaque type declaration's
generic signature. To properly be able to determine the ordinal for a
given "some" type representation, retain all of the "some" type
representations in the `OpaqueTypeDecl` (using trailing storage), so
we can map them to the proper generic parameter and ordinal later on.
It's possible to create an impossible set of constraints for
instance-member stored properties of a type. For example:
@MainActor func getStatus() -> Int { /* ... */ }
@PIDActor func genPID() -> ProcessID { /* ... */ }
class Process {
@MainActor var status: Int = getStatus()
@PIDActor var pid: ProcessID = genPID()
init() {} // Problem: what is the isolation of this init?
}
We cannot satisfy the isolation of the initilizing expressions,
which demand that genStatus and genPID are run with isolation
from a non-async designated initializer, which is not possible.
This patch changes the isolation for those initializer expressions
for instance members, saying that the isolation is unspecified.
fixes rdar://84225474
* [Distributed] towards DistributedActorSystem; synthesize the id earlier, since Identifiable.id
* Fix execute signature to what Pavel is working with
* funcs are ok in sil
* fixed lifetime of id in inits
* fix distributed_actor_deinit
* distributed_actor_local
* update more tests
fixing tests
fix TBD test
fix Serialization/distributed
fix irgen test
Fix null pointer crashes
* prevent issues with null func ptrs and fix Distributed prorotocol test
* fix deinit sil test
c763ab5d1e fixed an issue in
`getSerializedLocs` where it never actually cached its result (and thus
always allocated a new `CachedExternalSourceLocs`). Unfortunately it
missed a leak that could occur when `DocRanges` grows beyond its initial
size of 4.
Allocate `DocRanges` upfront in the `ASTContext` as well in order to
prevent this leak.
Resolves rdar://85472403.
This cleans up 90 instances of this warning and reduces the build spew
when building on Linux. This helps identify actual issues when
building which can get lost in the stream of warning messages. It also
helps restore the ability to build the compiler with gcc.
This is a verbatim copy of the GenericSignatureBuilder's somewhat
questionable (but necessary for source compatibility) logic where
protocol typealiases with the same name as some other associated
type imply a same-type requirement.
The related diagnostics are there too, but only emitted when
-requirement-machine-protocol-signatures=on; in 'verify' mode,
the GSB will emit the same diagnostics.
Introduce the `@_predatesConcurrency` attribute, which specifies that a
given declaration existed prior to the introduction of Swift
Concurrency, has been updated to use concurrency features (global
actors, Sendable, etc.), but should retain its pre-concurrency behavior
for clients that have not yet opted into concurrency.
Implement type and actor-isolation adjustments to
`@_predatesConcurrency` declarations to subsume the `@_unsafeMainActor`,
`@_unsafeSendable`, and `@MainActor(unsafe)` use cases. This is the
bulk of the semantic transformations needed for this new attribute,
but is not yet complete.
Part of rdar://84448438.
This allows applications that back-deploy but only use concurrency in
newer code to load and execute properly, even when the concurrency library
is not available. Fixes rdar://84877644.
This would be used by closures because they handle patterns
and initializers via solver and set them back to the pattern
binding decl as fully type-checked.
The `@__distributedActorIndependent` attribute is effectively the same
as nonisolated, so start treating it that way by making actor-isolation
checking look for it specifically and conclude "nonisolated". Remove
various special cases for this attribute that don't need to exist.
These will be used by the RequirementMachine to compute requirement
signatures. For now, they're not hooked up.
ProtocolDecl::getStructuralRequirements() produces a list of Requirements
with SourceLocs from the structural types written in the protocol's
inheritance clause and 'where' clauses.
ProtocolDecl::getProtocolDependencies() produces a list of protocols which
appear on the right hand side of the protocol's conformance requirements.
Note: we only lazily load the result if it's a record, because otherwise it's trivial to load when importing the function. Also, we still eagerly import operator's results types.
