This configuration clause will suppress lex diagnostics and skip parsing
altogether if the code under the clause isn't active - the compiler must
have a repository version greater than or equal to the version given to
_compiler_version.
This option is only meant to be used sparingly and not to track the
Swift *language* version.
Example, if using a compiler versioned 700.0.28:
#if _compiler_version("700.0.23")
print("This code will compile for versions 700.0.23 and later.")
#else
This + code + will + not + be + parsed
#endif
Included are new diagnostics for checking that the version is formatted
correctly and isn't empty.
New tests:
- Compiler version comparison unit tests
- Build configuration diagnostics
- Skipping parsing of code under inactive clauses
rdar://problem/22730282
Swift SVN r32195
in the plist file.
This was exposed by r15694, but probably did not manifest as
the string escaping logic previously only happened on B&I submissions.
In this approach, the final version quad is turned into a string
within Version.cpp, not at the -D invocation.
Swift SVN r15708
This is meant to be utilized for a narrow set of scenarios specific to dogfooding our pre-1.0 compiler, so please do not take any dependencies on this. In fact, I'll be removing this in the next milestone. (See rdar://problem/16380797.)
Also included - improve error recovery when parsing broken build configuration clauses.
Swift SVN r15694
- Added a couple of new targets:
- libswiftDriver, which contains most of the driver implementation
- swift_driver, which produces the actual executable
- Added centralized version information into libswiftBasic.
- Added a new "Driver Design & Internals" document, which currently describes
the high-level design of the Swift driver.
- Implemented an early version of the functionality of the driver, including
versions of the Parse, Pipeline, Bind, Translate, and Execute driver stages.
Parse, Pipeline, and Bind are largely implemented; Translate and Execute are
early placeholders. (Translate produces "swift_driver --version" and "ld -v"
commands, while Execute performs all subtasks sequentially, rather than in
parallel.)
This is just the starting point for the Swift driver. Tests for the existing
behavior are forthcoming.
Swift SVN r10933
