IterableDeclContext::checkDeserializeMemberErrorInPackage recursively checks if
decls and their member decls are deserialized correctly into another module.
This PR adds a check to make sure the inspected decls are from another module,
and provides an opt-in flag to fail fast on deserialization failure if found.
rdar://143830240
Add ability to automatically chaining the bridging headers discovered from all
dependencies module when doing swift caching build. This will eliminate all
implicit bridging header imports from the build and make the bridging header
importing behavior much more reliable, while keep the compatibility at maximum.
For example, if the current module A depends on module B and C, and both B and
C are binary modules that uses bridging header, when building module A,
dependency scanner will construct a new header that chains three bridging
headers together with the option to build a PCH from it. This will make all
importing errors more obvious while improving the performance.
* Move `AvailabilitySpec` handling logic to AST, so they can be shared
between libParse and ASTGen
* Requestify '-define-availability' arguments parsing and parse them
with 'SwiftParser' according to the 'ParserASTGen' feature flag
* Implement 'AvailableAttr' generation in ASTGen
Checking each module dependency info if it is up-to-date with respect to when the cache contents were serialized in a prior scan.
- Add a timestamp field to the serialization format for the dependency scanner cache
- Add a flag "-validate-prior-dependency-scan-cache" which, when combined with "-load-dependency-scan-cache" will have the scanner prune dependencies from the deserialized cache which have inputs that are newer than the prior scan itself
With the above in-place, the scan otherwise proceeds as-is, getting cache hits for entries still valid since the prior scan.
Indexing while building sometimes triggers module deserialization issues, exemplified
by a recent issue of rdar://141357099. This change introduces the blocklist support
to avoid indexing specific module names so we could rely on external data source for
unblocking builds, instead of modifying the compiler source.
Resolves: rdar://143770366
When building the runtime we define `SWIFT_RUNTIME`. `swiftCore_EXPORTS`
is only defined when building swiftCore as a shared library. This would
thus allow the ODR violations to appear in a static library form of the
standard library. This was uncovered with the new runtime build system.
We're not planning on removing the splitter because it is a big win
in some cases, but we want to run it less often since it can also
be a source of overhead. This flag allows us to compare performance
to understand the tradeoffs better.
Types annotated as `@_addressableForDependencies` are still usable by older
compilers that don't know about nonescapable types or lifetime dependencies,
since it only affects the behavior of the type when it's the source of a
dependency.
The newer version of clang will issue warnings in more cases,
specifically, -Winvalid-offsetof and -Wunused-but-set-variable.
This cleans up the new warnings issued from header, which shows up for
every TU that includes them. Fixing them should make the remaining
warnings easier to read.
decl being accessed is correct. When this assumption fails due to a deserialization error
of its members, the use site accesses the layout with a wrong field offset, resulting in
UB or a crash. The deserialization error is currently not caught at compile time due to
LangOpts.EnableDeserializationRecovery being enabled by default to allow for recovery of some
of the deserialization errors at a later time. In case of member deserialization, however,
it's not necessarily recovered later on.
This PR tracks whether member deserialization had an error by recursively loading members and
checking for deserialization error, and fails and emits a diagnostic. It provides a way to
prevent resilience bypassing when the deserialized decl's layout is incorrect.
Resolves rdar://132411524
This attribute makes it so that a parameter of the annotated type, as well as
any type structurally containing that type as a field, becomes passed as
if `@_addressable` if the return value of the function has a dependency on
the parameter. This allows nonescapable values to take interior pointers into
such types.
This attribute will allow you to specify an alternate version of the declaration used for mangling. It will allow minor adjustments to be made to declarations so long as they’re still compatible at the calling convention level, such as refining isolation or sendability, renaming without breaking ABI, etc.
The attribute is behind the experimental feature flag `ABIAttribute`.
This was never used to generate a .swiftinterface, so can be safely removed. It
was used to guard compiler fixes that might break older .swiftinterface
files. Now, we guard the same fixes by checking the source file type.
This results in an automatic wrapper function with safe pointer types
when the imported function has bounds attributes. This exercises similar
pathways as the recently added functionality for specifying macros from
swift_attr. The new functionality is guarded by the experimental
language feature SafeInteropWrappers.
rdar://97942270
