If a class does not have a custom @objc name, objc_getClass() can find
it at runtime by calling the Swift runtime's metadata demangler hook.
This avoids the static initializer on startup. If the class has a
custom runtime name we still need the static initializer unfortunately.
Fixes <rdar://problem/49660515>.
The diagnostic is now a warning and the new message alerts the user that
though it is valid to have let and var as argument label names,
they are interpreted as argument labels, not keywords.
As pointed out on a recent JIRA, crash traces don't mention what
version of Swift you were running. Usually that can be gleaned from
the path, but not always.
Windows requires a handle to get memory usage, so do a slight refactor
to collect the child's memory usage as it exits instead of as the parent
is cleaning up.
This avoids us having to pattern match every source file which should
help speed up the CMake generation. A secondary optimization is
possible with CMake 3.14 which has the ability to remove the last
extension component without having to resort to regular expressions. It
also helps easily identify the GYB'ed sources.
The signaled callback is treated more as a general crash handler clean
up wise. While it doesn't 100% line up, have Windows call the signaled
callback on exit codes considered to be errors.
To display stack traces from child processes, the driver combines stdout
and stderror together on Unix. This makes the Basic implementation also
do that.
When loading a module supporting multiple targets, the module loader now looks for a file named with a normalized version of the target triple first, and only falls back to the architecture name if the normalized triple is not found.
These changes allow to optionally perform a very fast build that is targeted to only produce the syntax parser library.
Part of addressing rdar://48153331
This is a follow up to the discussion on #22740 to switch the host
libraries to use the `target_link_libraries` rather than the
`LINK_LIBRARIES` special handling. This allows the dependency to be
properly tracked by CMake and allows us to use the more modern syntax.
LLVM r340675 added a new HermitCore OS type to triples, which broke the
Swift build because it is using -Werror,-Wswitch and the new value was not
handled in swift::getPlatformNameForTriple
Darwin does not follow the ITEF specification (RFC 4122) and emits the UUID in
uppercase and expects the emission to be uppercase. Convert to upper case when
translating the UUID from the binary representation to the string
representation. This repairs the SIL parsing tests on Windows.
