Remove the option to switch off nested types tables. In a world where
re-entrant direct lookup will cause deserialization to fail (or worse),
disabling these tables will only lead to further instability in the
compiler.
Rather than only emitting the target triple, provide additional
information about that particular target, including the module triple
(i.e., what file names will be used for Swift modules for that
triple), the runtime compatibility version if there is one, and
whether linking with rpaths is required for the standard library and
other libraries shipped with Swift. Encode this as JSON so we can
extend it in the future. For now, it looks like this:
```
{
"target": {
"triple": "arm64-apple-ios12.0",
"moduleTriple": "arm64-apple-ios",
"swiftRuntimeCompatibilityVersion": "5.0",
"librariesRequireRPath": true
}
}
```
Which you can deserialize into a TargetInfo instance as defined below:
```
struct Target: Codable {
/// The target triple.
var triple: String
/// The triple used for module file names.
var moduleTriple: String
/// If this platform provides the Swift runtime, the Swift language
version
/// with which that runtime is compatible.
var swiftRuntimeCompatibilityVersion: String?
/// Whether linking against the Swift libraries requires the use of
rpaths.
var librariesRequireRPath: Bool
}
struct TargetInfo: Codable {
var target: Target
}
```
Implements rdar://problem/47095159.
Add a -print-target-triple command line option to the Swift frontend
and driver to allow other tools (e.g., SwiftPM) to query the host
triple as it is understood by the Swift compiler. This follows the
precedent set by Clang. Implements rdar://problem/57434967.
Frontend outputs source-as-compiled, and source-ranges file with function body ranges and ranges that were unparsed in secondaries.
Driver computes diffs for each source file. If diffs are in function bodies, only recompiles that one file. Else if diffs are in what another file did not parse, then the other file need not be rebuilt.
De-duplicate TypeCheckingFlags, TypeChecker's Options, and the TypeChecker-Oriented FrontendOptions into a dedicated TypeCheckerOptions type. This moves a bunch of configuration state out of the type checker and into the ASTContext where it belongs.
We generate .swiftsourceinfo for stdlib in the build directory because ABI checker
could issue diagnostics to the stdlib source. However, this may also change other
diagnostic tests. Both Brent and Jordan have raised concern about this. After
adding this flag, other diagnostic tests could ignore .swiftsourceinfo files even
though when they are present so our tests will reflect what most users experience
when sources for stdlib are unavailable.
This flag, currently staged in as `-experimental-skip-non-inlinable-function-bodies`, will cause the typechecker to skip typechecking bodies of functions that will not be serialized in the resulting `.swiftmodule`. This patch also includes a SIL verifier that ensures that we don’t accidentally include a body that we should have skipped.
There is still some work left to make sure the emitted .swiftmodule is exactly the same as what’s emitted without the flag, which is what’s causing the benchmark noise above. I’ll be committing follow-up patches to address those, but for now I’m going to land the implementation behind a flag.
ABI checker imports Swift frameworks by using Swift interfaces for various
reasons. The existing way of controlling preferred importing mechanism is by
setting an environment variable (SWIFT_FORCE_MODULE_LOADING), which may lead
to performance issues because the stdlib could also be loaded in this way.
This patch adds a new front-end option to specify module names for
which we prefer to importing via Swift interface. The option currently is only
accessible via swift-api-digester.
rdar://54559888
Leave the old flag in as an alias to the new flag, for transition
purposes. Also go ahead and remove the long-deprecated and unused
`emit-interface-path`.
Part of rdar://49359734
When compiling SwiftOnoneSupport, issue errors for missing functions which are expected in the module.
This ensures ABI compatibility.
rdar://problem/48924409
...and remove the option. This is ~technically~ CLI-breaking because
Swift 5 shipped this as a hidden driver option, but it wouldn't have
/done/ anything in Swift 5, so I think it's okay to remove.
Note that if a parseable interface (.swiftinterface) and a binary
interface (.swiftmodule) are both present, the binary one will still
be preferred. This just /allows/ parseable interfaces to be used.
rdar://problem/36885834
Makes it easier to test the caching behavior, and may also be useful
for "prebuilding" swiftinterfaces in the future, or having the Driver
kick off a bunch of separate builds as proper tasks.
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.
Patch produced by
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done
By default, the frontend tries to figure out if the built module is
likely to be distributed in some way, and uses that to decide whether
to include options that help with debugging (such as local search
paths). There's long been a -serialize-debugging-options that forces
those options to be included even when it looks like a framework is
being built, but the opposite has been absent until now.
Note that both of these options are still /frontend/ options, not
driver options, which means they could still change in the future.
(I'd really like to get to a point where debugging doesn't need to
sniff these options out from the module this way, but there are some
complications we'd need to work out. Swift 1 expediency coming back to
cause trouble again.)
rdar://problem/37954803
A module compiled with `-enable-private-imports` allows other modules to
import private declarations if the importing source file uses an
``@_private(from: "SourceFile.swift") import statement.
rdar://29318654
* [TBDGen] Allow user-provided dylib version flags
This patch adds two frontend arguments, -tbd-compatibility-version and
-tbd-current-version, both of which accept SemVer versions.
These will show up in the generated TBD file for a given module as
current-version: 2.7
compatibility-version: 2.0
These flags both default to `1.0.0`.
* Reword some comments
* Add test for invalid version string
* Expand on comments for TBD flags
Continuing work from #18344, be more conservative about when we load
SwiftOnoneSupport. Specifically, -emit-silgen and -emit-sibgen, despite
not going through the SIL Optimizer, may silently introduce dependencies
on SwiftOnoneSupport.
Because we want to support the ability to posthumously compile SILGen
and SIBGen'd files with these implicit dependencies, and because SIL
is not yet capable of expressing the dependency itself, we must always
assume we need to load SwiftOnoneSupport.
SwiftOnoneSupport is an implicit dependency of no-opt builds that is usually
only loaded when frontend actions that emit optimization-sensitive outputs are
run.
Force the implicit dependency to be explicit when -track-system-dependencies is
used in concert with frontend actions that requires SIL passes be run.
...instead of sometimes hardcoding them and sometimes using Strings.h.
The exceptions are the libraries that sit below Frontend; these can
continue using strings.
...but don't hook it up to anything yet.
This is the very very start of the module stability / textual
interfaces feature described at
https://forums.swift.org/t/plan-for-module-stability/14551/
For now I've just made it a frontend option (not a driver option),
which is good enough for testing.
Introduces the -name-bind frontend action that is intended as an intermediary between the parse-only actions and a full typechecking pass. In this phase, module imports will be validated and resolved, making it possible to emit full make-style dependencies files among other things.
Note that all information available to a parse-only pass is available to name binding, but because it does not continue-on to typecheck input files, full semantic information is not.
Parse-only invocations do not support the proper creation of dependency files or reference dependency files because they have not yet run name binding. Ban these invocations by diagnostic and add a new diagnostic specifically for reference dependencies.
TBD validation is effectively an expensive assertion, and is currently only
tuned for Apple platforms. However, we don't want it to regress more, and it
would be nice to start getting validation from people using master
snapshots. Together, this means that turning it on by default for the cases
mentioned above is an appropriate course of action.
At the very least, this has the benefit of running validation across the stdlib,
the overlays and the whole testsuite on each build, so people making changes to
the compiler that change symbols are hopefully alerted.
One limitation here is that this is only validating that the TBD is a superset
of the true set of symbols: it could include spurious symbols that aren't
actually in the binary. This case is less problematic for Swift than symbols
missing from the TBD file, and so we've focused energy on this. Once we've fixed
the extra-symbols problems and are confident in it, this validation can be
upgraded to validate that too.
Half of rdar://problem/40431434.
Introduce a command-line option to visualize the complete set of output
request dependencies evaluated by a particular compile action. This is
exposing existing visualization facilities to the (-frontend) command line.
