This doesn't yet add support for actually making use of variadic
functions, but at least allows (unintended) variadic functions like the
following to work:
void foo();
This makes the result consistent across Go versions, by running a regex
on the CGo output that wraps all single-line functions in a consistent
way.
Originally written by Elliott Sales de Andrade and modified by Ayke van
Laethem.
This implementation is still very limited but provides a base to build
upon. Limitations:
* CGO_CFLAGS etc is not taken into account.
* These CFLAGS are not used in C files compiled with the package.
* Other flags (CPPFLAGS, LDFAGS, ...) are not yet implemented.
This commit adds tests for CGo preprocessing. There are various errors
that can be reported while preprocessing, and they should integrate well
with the compiler (including accurate source location tracking).
Also allow CGo preprocessing to continue after Clang encountered an
error, for a better view of what happened.
Instead of putting the magic in the AST, generate regular accessor
methods. This avoids a number of special cases in the compiler, and
avoids missing any of them.
The resulting union accesses are somewhat clunkier to use, but the
compiler implementation has far less coupling between the CGo
implementation and the IR generator.
Not all enums may be used as a type anywhere, which was previously the
only way to include an enum in the AST. This commit makes sure all enums
are included.
This commit renames reserved field names like `type` to `_type`, and in
turn renames those fields as well (recursively). This avoids name
clashes when a C struct contains a field named `type`, which is a
reserved keyword in Go.
For some details, see:
https://golang.org/cmd/cgo/#hdr-Go_references_to_C
