Change the way swiftmodules built against a different SDK than their
clients are rejected. This makes them silently ignored when the module
can be rebuilt from their swiftinterface, instead of reporting a hard
error.
rdar://93257769
Swiftc port of https://github.com/apple/llvm-project/pull/4207.
This introduces a new flag, `-file-prefix-map` which can be used
instead of the existing `-debug-prefix-map` and `-coverage-prefix-map`
flags, and also remaps paths in index information currently.
llvm/llvm-project d0262c2394f46bb7da2a75529413d625c70908e5 added a new
default bool param to the two constructors in `SmallVectorMemoryBuffer`.
Since `options.OutputPath` is a `const char *` and that can be promoted
to a `bool`, the constructor being called was changed to the first
constructor (with a default buffer name) - promotion is preferred over
conversion.
Convert the various output paths to a `StringRef` - all their uses
converted to `StringRef` anyway. Also specify the default parameter in
order to maintain the old behaviour, which didn't require a null
terminator.
The `VersionTuple` API was changed llvm/llvm-project
219672b8dd06c4765185fa3161c98437d49b4a1b to return `VersionTuple`
from `get*Version` rather than pass in major, minor, and subminor output
parameters. Update uses to the new API.
Note that `getMacOSXVersion` is slightly different in that it returns a
boolean while taking a `VersionTuple` output parameter to match its
previous behaviour. There doesn't seem to be any use that actually
checks this value though, so we should either update the API to return
an `Optional` and actually check it *or* remove the "failure" case and
return a `VersionTuple` like all the others.
So far, the swift-frontend decided by itself if CMO can be enabled. This caused problems when used with an old driver, which doesn't consider CMO.
Now, the driver decides when to use default CMO by passing this flag to swift-frontend.
```
[218/807] Building CXX object lib/Frontend/CMakeFiles/swiftFrontend.dir/CompilerInvocation.cpp.o
/home/egorzh/swift/swift/lib/Frontend/CompilerInvocation.cpp:804:28: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
Opts.EnableCXXInterop |= Args.hasArg(OPT_enable_experimental_cxx_interop) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
||
/home/egorzh/swift/swift/lib/Frontend/CompilerInvocation.cpp:804:28: note: cast one or both operands to int to silence this warning
```
This is some groundwork to make it possible to flip the `-enable-experimental-string-processing` flag on by default if and when it passes Swift Evolution. This PR itself do **not** change the defaults.
- Do not implicitly import _StringProcessing when building a module interface.
- Do not implicitly import _StringProcessing when core libraries, same as _Concurrency.
The three options are now:
* `explicit`: Enforce Sendable constraints where it has been explicitly adopted and perform actor-isolation checking wherever code has adopted concurrency. (This is the default)
* `targeted`: Enforce Sendable constraints and perform actor-isolation checking wherever code has adopted concurrency, including code that has explicitly adopted Sendable.
* `complete`: Enforce Sendable constraints and actor-isolation checking throughout the entire module.
Always use the swiftinterfaces of modules under the public Frameworks
folder in the SDK. Distributed swiftmodules are unreliable, they should
only be used as a local cache. Let's avoid them when possible.
rdar://92037292
Replace `-warn-concurrency` with a more granular option
`-swift-concurrency=`, where the developer can select one of three
different "modes":
* `off` disables `Sendable` checking for most cases. (This is the Swift
5.5 and Swift 5.6 behavior.)
* `limited` enables `Sendable` checking within code that has adopted
Swift concurrency. (This is currently the default behavior.)
* `on` enables `Sendable` and other concurrency checking throughout
the module. (This is equivalent to `-warn-concurrency` now).
There is currently no distinction between `off` and `limited`. That
will come soon.
Implements the flag part of rdar://91930849.
This setups the frontend to search both an architecture suffixed and
unsuffixed path. This improves the multi-architecture setup for
Windows, enabling it use the directory form of the swift modules with
the architectures overlaying in the swift module and leaving the arch
suffixed directory for the import libraries.
This can be fully generalized as this also enables Linux to use the
multi-architecture search path for the swift modules enabling it to
eventually adopt a SDK model as well.
After the rename of the `enable-cxx-interop` option to `enable-experimental-cxx-interop` it was no longer possible to build with installed tools.
This change re-introduces the `enable-cxx-interop` option for backward compatibility
This path was not exercised in the test suite, and when the
PrimaryAssociatedTypes feature finally (incorrectly) triggered it,
it would print '#endifextension'.
