If the replaced symbol goes away in the original library, the
replacement key in the replacement descriptor will be null. Handle this
by ignoring the replacement entry rather than crashing.
rdar://103307821
Upgrade the old mangling from a list of argument types to a
list of requiremnets. For now, only same-type requirements
may actually be mangled since those are all that are available
to the surface language.
Reconstruction of existential types now consists of demangling (a list of)
base protocol(s), decoding the constraints, and converting the same-type
constraints back into a list of arguments.
rdar://96088707
Implement casting to and from extended existentials. This is done by slightly generalizing the conditional conformances checking infrastructure.
Unfortunately, casts for reference types and metatypes are unsound because IRGen is peepholing all non-opaque existential conversions with a helper. I’ll disable that in a follow-up.
rdar://92197049
Moved all the threading code to one place. Added explicit support for
Darwin, Linux, Pthreads, C11 threads and Win32 threads, including new
implementations of Once for Linux, Pthreads, C11 and Win32.
rdar://90776105
The operator new/delete overrides aren't working out due to inconsistent inlining of std::string creation/deletion. We can end up creating one with the global new but destroying it with our local delete. If they aren't compatible, this crashes.
Instead, avoid problematic new/delete activity coming from lookup of ObjC class names. Names passed to getObjCClassByMangledName must either have a standard mangled name prefix, start with a digit (for unprefixed mangled names) or use the convenience dot syntax. Check for those up front and immediately reject anything else. This has the added bonus of failing more quickly for non-Swift names.
rdar://93863030
Moved all the threading code to one place. Added explicit support for
Darwin, Linux, Pthreads, C11 threads and Win32 threads, including new
implementations of Once for Linux, Pthreads, C11 and Win32.
rdar://90776105
Add requirements to the Builder concept to construct generic signatures and substitution maps. Then introduce a `subst` requirement that uses the substitution map to call through to the builder's notion of type (ref) substitution.
This infrastructure is sufficient to model the notion of a RuntimeGenericSignature.
Apply a blanket pass of including `new` for the placement new allocation
and namespacing the call to the global placement new allocator. This
should repair the Android ARMv7 builds.
When SWIFT_COMPACT_ABSOLUTE_FUNCTION_POINTER is enabled, relative direct
pointers whose pointees are functions will be turned into absolute
pointer at compile-time.
- Extract common logic across count, result and parameter type demangling
- Add support for demangling of generic functions
- Fix handling of single unlabeled parameter types
* [Distributed] Implement func metadata and executeDistributedTarget
dont expose new entrypoints
able to get all the way to calling _execute
* [Distributed] reimplement distributed get type info impls
* [Distributed] comment out distributed_actor_remoteCall for now
* [Distributed] disable test on linux for now
* When ptrauth-copying vtable/wtables, allow NULL entries (due to VFE)
* Mark virtual-function-elimination-generics-exec.swift UNSUPPORTED: arm64e until the rebranch
* Fix test expectations
When back-deploying concurrency support, do not use the standard
substitutions for _Concurrency-defined types (such as `Task`) in type
metadata because older Swift runtimes will not be able to demangle
them. Instead, use the full mangled names so the runtime can still
demangle them appropriately.
Addresses rdar://82931890.
Mangling can fail, usually because the Node structure has been built
incorrectly or because something isn't supported with the old remangler.
We shouldn't just terminate the program when that happens, particularly
if it happens because someone has passed bad data to the demangler.
rdar://79725187
Moved the test for the metadata kind to MetadataLookup.cpp.
Added an assertion (for debug builds) to Metadata.cpp to catch the case where
something manages to bypass that test.
