Honour the SDK for APINotes to augment the system libraries. This allows
us to distribute APINotes with the Swift SDK and impact the system
without having to map the APINotes into the filesystem.
This patch introduces new diagnostics to the ClangImporter to help
explain why certain C, Objective-C or C++ declarations fail to import
into Swift. This patch includes new diagnostics for the following entities:
- C functions
- C struct fields
- Macros
- Objective-C properties
- Objective-C methods
In particular, notes are attached to indicate when any of the above
entities fail to import as a result of refering an incomplete (only
forward declared) type.
The new diangostics are hidden behind two new flags, -enable-experimental-clang-importer-diagnostics
and -enable-experimental-eager-clang-module-diagnostics. The first flag emits diagnostics lazily,
while the second eagerly imports all declarations visible from loaded Clang modules. The first
flag is intended for day to day swiftc use, the second for module linting or debugging the importer.
* First pass at implementing support for mapping between long double and Float80.
* Only define CLongDouble on platforms where I know what it is.
* remove some hacks that are no longer necessary.
The parameter names in C functions are not API in C and can easily be
inconsistent from one redeclaration to another. Therefore, those
parameter names are not considered API.
Swift SVN r15853
When we see pointer types in function or method parameters, import them as the bridged CMutablePointer/CConstPointer types instead of UnsafePointer, enabling the array and inout conversions with imported APIs.
Swift SVN r15705
