Missing features in libclang: complex element type, "unexposed" function pointer types in structs, __asm__ and calling convention attributes

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Hi everyone. I’m trying to write an FFI bindings generator using the cursor visitor functionality in libclang. Overall the API is nice and clean, but it looks like it’s missing a few pieces. I wanted to ask whether these were on anyone’s to-do list before looking into adding them myself, and check that I’m not just doing it wrong. In particular, I’m missing the following functionality:

  • There’s no way to get the element type from a Complex-kind CXType. There was a thread about incorporating this functionality by generalizing the clang_getArrayElementType function:

http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20110926/046899.html

Is this being worked on?

  • Function pointer fields in structs or unions show up as pointers to “Unexposed”-kind CXTypes, although you can still visit their parameter child nodes and access the return type from clang_getResultType. Given this C snippet: