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path: root/build/scripts/gen_py3_reg.py
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import sys 
 
template = ''' 
struct PyObject;
extern "C" int PyImport_AppendInittab(const char* name, PyObject* (*initfunc)());
extern "C" PyObject* {1}();
 
namespace { 
    struct TRegistrar { 
        inline TRegistrar() { 
            // TODO Collect all modules and call PyImport_ExtendInittab once 
            PyImport_AppendInittab("{0}", {1}); 
        } 
    } REG; 
} 
''' 
 
 
def mangle(name): 
    if '.' not in name: 
        return name 
    return ''.join('{}{}'.format(len(s), s) for s in name.split('.')) 
 
if __name__ == '__main__': 
    if len(sys.argv) != 3: 
        print >>sys.stderr, 'Usage: <path/to/gen_py_reg.py> <python_module_name> <output_file>' 
        print >>sys.stderr, 'Passed: ' + ' '.join(sys.argv) 
        sys.exit(1) 
 
    with open(sys.argv[2], 'w') as f: 
        modname = sys.argv[1] 
        initname = 'PyInit_' + mangle(modname) 
        code = template.replace('{0}', modname).replace('{1}', initname) 
        f.write(code)