def run(self, baseast):
debug_import ("***** Preprocessing %s" % (self.filename_list))
data = self.preprocess_and_grab_data(self.filename_list)
# Calculate the path to the parse tables.
filename_for_parser = '_'.join(self.filename_list)
try:
#print '*** DATA'
#print data
#print 'END *** DATA'
ast = cparse(baseast, filename_for_parser, data)
except Exception, e:
print "*** Exception encountered while processing %s" % (self.filename_list)
file("inputparser.error.out", 'w').write(data)
print "Preprocessed input written to inputparser.error.out"
raise
def preprocess_and_grab_data(self, filename_list):
# Make a tiny C file containing all the filenames as included.
cpp_file = ['#include "%s"' % (filename) for filename in filename_list]
cpp_file = '\n'.join(cpp_file) + '\n'
# Ensure that the specified cpp actually exists
full_cpp_path = usr_bin_which(self.cpp)
if full_cpp_path is None:
raise CPPNotFoundError("C pre-processor '%s' not found" % self.cpp)
cpp_command_line = ' '.join ([self.cpp] + self.cpp_options \
+ ['-I%s' % (incdir) for incdir in self.include_dirs]
+ ['-D%s' % (define) for define in self.defines]
)
debug_import ("***** cpp: %s" % (cpp_command_line))
child_out, child_in = popen2.popen2(cpp_command_line)
child_in.write(cpp_file)
child_in.close()
return child_out.read()
