ref: e3e8e9d285fcd014bff0648c5ff3b4a2d76d7961
dir: /python/lib/generator.py/
#! /usr/bin/python
""" This file generates a c file from a list of cpp prototypes. """
import os, sys, shutil
from gen_pyobject import write_msg, gen_new_init, gen_do, gen_members, gen_methods, gen_finish
def get_cpp_objects():
cpp_output = [l.strip() for l in os.popen('cpp -DAUBIO_UNSTABLE=1 -I../build/src ../src/aubio.h').readlines()]
cpp_output = filter(lambda y: len(y) > 1, cpp_output)
cpp_output = filter(lambda y: not y.startswith('#'), cpp_output)
i = 1
while 1:
if i >= len(cpp_output): break
if cpp_output[i-1].endswith(',') or cpp_output[i-1].endswith('{') or cpp_output[i].startswith('}'):
cpp_output[i] = cpp_output[i-1] + ' ' + cpp_output[i]
cpp_output.pop(i-1)
else:
i += 1
typedefs = filter(lambda y: y.startswith ('typedef struct _aubio'), cpp_output)
cpp_objects = [a.split()[3][:-1] for a in typedefs]
return cpp_output, cpp_objects
def generate_object_files(output_path):
if os.path.isdir(output_path): shutil.rmtree(output_path)
os.mkdir(output_path)
generated_objects = []
cpp_output, cpp_objects = get_cpp_objects()
skip_objects = [
# already in ext/
'fft',
'pvoc',
'filter',
'filterbank',
#'resampler',
# AUBIO_UNSTABLE
'hist',
'parameter',
'scale',
'beattracking',
'resampler',
'sndfile',
'peakpicker',
'pitchfcomb',
'pitchmcomb',
'pitchschmitt',
'pitchspecacf',
'pitchyin',
'pitchyinfft',
'sink',
'sink_apple_audio',
'sink_sndfile',
'sink_wavwrite',
'source',
'source_apple_audio',
'source_sndfile',
'source_avcodec',
'source_wavread',
#'sampler',
'audio_unit',
]
write_msg("-- INFO: %d objects in total" % len(cpp_objects))
for this_object in cpp_objects:
lint = 0
if this_object[-2:] == '_t':
object_name = this_object[:-2]
else:
object_name = this_object
write_msg("-- WARNING: %s does not end in _t" % this_object)
if object_name[:len('aubio_')] != 'aubio_':
write_msg("-- WARNING: %s does not start n aubio_" % this_object)
write_msg("-- INFO: looking at", object_name)
object_methods = filter(lambda x: this_object in x, cpp_output)
object_methods = [a.strip() for a in object_methods]
object_methods = filter(lambda x: not x.startswith('typedef'), object_methods)
#for method in object_methods:
# write_msg(method)
new_methods = filter(lambda x: 'new_'+object_name in x, object_methods)
if len(new_methods) > 1:
write_msg("-- WARNING: more than one new method for", object_name)
for method in new_methods:
write_msg(method)
elif len(new_methods) < 1:
write_msg("-- WARNING: no new method for", object_name)
elif 0:
for method in new_methods:
write_msg(method)
del_methods = filter(lambda x: 'del_'+object_name in x, object_methods)
if len(del_methods) > 1:
write_msg("-- WARNING: more than one del method for", object_name)
for method in del_methods:
write_msg(method)
elif len(del_methods) < 1:
write_msg("-- WARNING: no del method for", object_name)
do_methods = filter(lambda x: object_name+'_do' in x, object_methods)
if len(do_methods) > 1:
pass
#write_msg("-- WARNING: more than one do method for", object_name)
#for method in do_methods:
# write_msg(method)
elif len(do_methods) < 1:
write_msg("-- WARNING: no do method for", object_name)
elif 0:
for method in do_methods:
write_msg(method)
# check do methods return void
for method in do_methods:
if (method.split()[0] != 'void'):
write_msg("-- ERROR: _do method does not return void:", method )
get_methods = filter(lambda x: object_name+'_get_' in x, object_methods)
set_methods = filter(lambda x: object_name+'_set_' in x, object_methods)
for method in set_methods:
if (method.split()[0] != 'uint_t'):
write_msg("-- ERROR: _set method does not return uint_t:", method )
other_methods = filter(lambda x: x not in new_methods, object_methods)
other_methods = filter(lambda x: x not in del_methods, other_methods)
other_methods = filter(lambda x: x not in do_methods, other_methods)
other_methods = filter(lambda x: x not in get_methods, other_methods)
other_methods = filter(lambda x: x not in set_methods, other_methods)
if len(other_methods) > 0:
write_msg("-- WARNING: some methods for", object_name, "were unidentified")
for method in other_methods:
write_msg(method)
# generate this_object
short_name = object_name[len('aubio_'):]
if short_name in skip_objects:
write_msg("-- INFO: skipping object", short_name )
continue
if 1: #try:
s = gen_new_init(new_methods[0], short_name)
s += gen_do(do_methods[0], short_name)
s += gen_members(new_methods[0], short_name)
s += gen_methods(get_methods, set_methods, short_name)
s += gen_finish(short_name)
generated_filepath = os.path.join(output_path,'gen-'+short_name+'.c')
fd = open(generated_filepath, 'w')
fd.write(s)
#except Exception, e:
# write_msg("-- ERROR:", type(e), str(e), "in", short_name)
# continue
generated_objects += [this_object]
s = """// generated list of objects created with generator.py
"""
types_ready = []
for each in generated_objects:
types_ready.append(" PyType_Ready (&Py_%sType) < 0" % \
each.replace('aubio_','').replace('_t','') )
s = """// generated list of objects created with generator.py
#include "aubio-generated.h"
"""
s += """
int generated_types_ready (void)
{
return (
"""
s += ('\n ||').join(types_ready)
s += """);
}
"""
s += """
void add_generated_objects ( PyObject *m )
{"""
for each in generated_objects:
s += """
Py_INCREF (&Py_%(name)sType);
PyModule_AddObject (m, "%(name)s", (PyObject *) & Py_%(name)sType);""" % \
{ 'name': ( each.replace('aubio_','').replace('_t','') ) }
s += """
}"""
fd = open(os.path.join(output_path,'aubio-generated.c'), 'w')
fd.write(s)
s = """// generated list of objects created with generator.py
#include <Python.h>
"""
for each in generated_objects:
s += "extern PyTypeObject Py_%sType;\n" % \
each.replace('aubio_','').replace('_t','')
s+= "int generated_objects ( void );\n"
s+= "void add_generated_objects( PyObject *m );\n"
fd = open(os.path.join(output_path,'aubio-generated.h'), 'w')
fd.write(s)
from os import listdir
generated_files = listdir(output_path)
generated_files = filter(lambda x: x.endswith('.c'), generated_files)
generated_files = [output_path+'/'+f for f in generated_files]
return generated_files
if __name__ == '__main__':
generate_object_files('gen')