This option allows the compiler to retry opening an input file if the previous
opening returns an error of bad file descriptor. Swift-driver will set this
argument in certain circumstances to walk-around such error.
rdar://73157185
Adds a new frontend option
"-experimental-allow-module-with-compiler-errors". If any compilation
errors occur while generating the .swiftmodule, this mode will skip SIL
entirely and only serialize the (likey invalid) AST.
This existence of this option during generation is serialized into the
resulting .swiftmodule. Errors found in deserialization are only allowed
if it is set.
Primarily intended for IDE requests (eg. indexing and code completion)
to ensure robust cross-module results, despite possible errors.
Resolves rdar://69815975
With this option enabled, the dependency scanner gathers all import statements in source files of the main module (non-transitive) and outputs a list of imported modules.
This will be used by build systems and the swift-driver as a way to avoid redundant re-scanning in incremental contexts.
Tying InputFile to this option meant that every input that was not one of the explictly-blessed kinds was modeled as a Swift file.
With the new InputFile that infers file kinds, we no longer need CompilerInvocation::setInputKind
For now, force the clang-based actions to skip the end of the pipeline. This restores the previous behavior of the frontend, but may not be desirable in the long run. For example, one may want to dump clang stats after running an -emit-pch job, but that is impossible without forcing the end of the pipeline to be more tolerant of ObjCHeader/modulemap-only inputs.
rdar://68587228
For the issue mentioned in rdar://67079780, swift-driver needs to run clang dependencies
scanner multiple times with different target triples for a Swift target. This patch adds
a new scanning action to generate the JSON file for a given clang module to accommodate
this requirement.
Resolves: rdar://problem/67269210
- deduplicate the logic to compute the resource folder
- install headers and module files in shared and static resource folders
- forward -static flag when calling swiftc with -print-target-info
This flag no longer does anything now that the unified statistics
reporting infrastructure exists. It is better to use
-driver-time-compilation to see a bird's eye view of timing statistics
for frontend jobs, and -stats-output-dir to see a down-and-dirty view of
everything including performance counters.
Expand the FrontendOptions to allow the enabling
of the dependency tracker for non-system
dependencies, and switch the previous clients of
`createDependencyTracker` over to using this
option. This ensures that the dependency tracker
is now set only during `CompilerInstance::setup`.
Move the playground and debugger transforms out
of the Frontend and into `performTypeChecking`, as
we'd want them to be applied if
`performTypeChecking` was called lazily.
Implement a new "fast" dependency scanning option,
`-scan-dependencies`, in the Swift frontend that determines all
of the source file and module dependencies for a given set of
Swift sources. It covers four forms of modules:
1) Swift (serialized) module files, by reading the module header
2) Swift interface files, by parsing the source code to find imports
3) Swift source modules, by parsing the source code to find imports
4) Clang modules, using Clang's fast dependency scanning tool
A single `-scan-dependencies` operation maps out the full
dependency graph for the given Swift source files, including all
of the Swift and Clang modules that may need to be built, such
that all of the work can be scheduled up front by the Swift
driver or any other build system that understands this
option. The dependency graph is emitted as JSON, which can be
consumed by these other tools.
Check whether the user has provided a valid
identifier when parsing the options. Also make
ImplicitImportModuleNames a private member of
FrontendOptions to prevent mutation after being
parsed.
Several tests related to indexing system modules were taking a considerable
amount of time (100+ seconds in the worst case) indexing the standard library.
This adds a frontend option to skip it and updates those tests to pass it.
Compatibility header may #import bridging header if specified with -import-underlying-module.
How these two headers are relative to each other is subject to project setting. To accommodate
this, we should allow users to specify bridging header directory for header generating purposes.
rdar://59110975
When enabled at the driver level, the frontends will inherit the flag. For each frontend that recieves this option, all primaries will have their reference dependencies validated.
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.
