<div dir="ltr"><div><div><div>I'd like to parse a C++ header file (say, math.h) with the Clang bindings for Python. (Yes, I know math.h is technically a C header, but for my purposes I want to pretend that it is C++.) For some reason, Clang is able to parse the file as C, but not as C++.<br>
<br></div>Here is an example session:<br><br>>>> import clang.cindex<br>>>> idx = clang.cindex.Index.create()<br>>>> tu = idx.parse('/usr/include/math.h', ['-x', 'c++-header'])<br>
>>> c = tu.cursor<br>>>> for d in c.get_children():<br>... print d.kind, d.spelling<br>... <br>CursorKind.TYPEDEF_DECL __int128_t<br>CursorKind.TYPEDEF_DECL __uint128_t<br>CursorKind.TYPEDEF_DECL __builtin_va_list<br>
CursorKind.UNEXPOSED_DECL <br>>>> print len(tu.diagnostics)<br>0<br><br></div>Now that list clearly does not represent the contents of math.h. However, as you can see, I don't get an error, and the list of diagnostics is empty.<br>
<br></div>When I use C mode, I instead get the list of functions I'm expecting to see:<br><div><div><div><div><br>>>> tu = idx.parse('/usr/include/math.h', ['-x', 'c-header'])<br>>>> c = tu.cursor<br>
>>> for d in c.get_children():<br>... print d.kind, d.spelling<br>... <br>CursorKind.TYPEDEF_DECL __int128_t<br>CursorKind.TYPEDEF_DECL __uint128_t<br>CursorKind.TYPEDEF_DECL __builtin_va_list<br>[...]<br>CursorKind.FUNCTION_DECL acosf<br>
CursorKind.FUNCTION_DECL acos<br>CursorKind.FUNCTION_DECL acosl<br>[...]<br clear="all"><div><div><br></div><div>Am I doing something obviously wrong (aside from calling math.h a C++ header)? Is there any reasonable way to debug problems like this?<br>
<br></div><div>I'm on Mac OS X 10.8 using the Clang binaries from Xcode (Apple LLVM version 5.0 (clang-500.2.75) (based on LLVM 3.3svn)), and Python bindings from Clang 3.2, and Python 2.7.2. (I am unable to test 3.3 because clang_Cursor_isBitField seems to be missing.)<br>
</div><div><br></div><div>Thanks.<br></div><div><br>-- <br>Elliott Slaughter<br><br>"Don't worry about what anybody else is going to do. The best way to predict the future is to invent it." - Alan Kay
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