Once the API has gone through Swift Evolution, we will want to implicitly
import the _Backtracing module. Add code to do that, but set it to off
by default for now.
rdar://105394140
We're going to add a program, `swift-backtrace`, that gets built alongside
the stdlib and the runtime, and that needs to be installed in libexec/swift
alongside the libraries in lib/swift.
It wants to be built with the stdlib/runtime because there's an internal
interface between `swift-backtrace` and the runtime, so the program needs
to stay in lock-step with the runtime library.
rdar://105390807
This allows us to evolve e.g. token kinds and how attributes are modelled independently between SwiftSyntax and the compiler. It also makes it easier to e.g. add an attribute because you don’t need to create PRs for two repositories.
We would previously use `clang-cl` without the explicit path which could
find an alternative `clang-cl` instance. This manifested as a failure
to build libdispatch as part of the compiler when cross-compiling x64 to
arm64.
and match the usage pattern employed by other LLVM projects.
For context about the underlying change see https://reviews.llvm.org/D117977
Addresses rdar://101396797
(cherry picked from #61769, commit 2763cc3911)
This is the start of the removal of the C++ implementation of libSyntax
in favor of the new Swift Parser and Swift Syntax libraries. Now that
the Swift Parser has switched the SwiftSyntaxParser library over to
being a thin wrapper around the Swift Parser, there is no longer any
reason we need to retain any libSyntax infrastructure in the swift
compiler.
As a first step, delete the infrastructure that builds
lib_InternalSwiftSyntaxParser and convert any scripts that mention
it to instead mention the static mirror libraries. The --swiftsyntax
build-script flag has been retained and will now just execute the
SwiftSyntax and Swift Parser builds with the just-built tools.
There were three different issues going on here, all of these were triggered by https://github.com/apple/swift/pull/61618 which stared including `AST/AnyFunctionRef.h` from the ASTBridging modulemap
- We did not find the clang include dirs because the unified build that build-tooling-libs is using does not import ClangConfig, setting `CLANG_INCLUDE_DIRS` in `swift_common_unified_build_config` fixed this problem.
- Some of the headers in `swift-ast-generated-headers` import generated headers from clang that might not have been created yet. Making `swift-ast-generated-headers` depend on the clang generated headers fixes this problem. This just lowers the dependency because `swiftAST` depends on `swift-ast-generated-headers`
- If a Swift compiler from Xcode is used, the SwiftShims don’t live next to the compiler but in the SDK. Adding the SDKs lib to the include paths fixes this problem
