/usr/lib/python2.7/dist-packages/ffc/backends/ufc/build.py is in python-ffc 1.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | __author__ = "Johan Hake (hake@simula.no)"
__date__ = "2009-03-06 -- 2014-05-20"
__license__ = "This code is released into the public domain"
__all__ = ['build_ufc_module']
# Modified by Martin Alnes, 2009
import instant
import os, sys, re, glob
from distutils import sysconfig
def build_ufc_module(h_files, source_directory="", system_headers=None, \
**kwargs):
"""Build a python extension module from ufc compliant source code.
The compiled module will be imported and returned by the function.
@param h_files:
The name(s) of the header files that should be compiled and included in
the python extension module.
@param source_directory:
The directory where the source files reside.
@param system_headers:
Extra headers that will be #included in the generated wrapper file.
Any additional keyword arguments are passed on to instant.build_module.
"""
# Check h_files argument
if isinstance(h_files, str):
h_files = [h_files]
assert isinstance(h_files, list) , "Provide a 'list' or a 'str' as 'h_files'."
assert all(isinstance(f, str) for f in h_files), \
"Elements of 'h_files' must be 'str'."
h_files2 = [os.path.join(source_directory, fn) for fn in h_files]
for f in h_files2:
if not os.path.isfile(f):
raise IOError("The file '%s' does not exist." % f)
# Check system_headers argument
system_headers = system_headers or []
assert isinstance(system_headers, list), "Provide a 'list' as 'system_headers'"
assert all(isinstance(header, str) for header in system_headers), \
"Elements of 'system_headers' must be 'str'."
system_headers.append("memory")
# Get the swig interface file declarations
declarations = extract_declarations(h_files2)
declarations += """
// SWIG version
%inline %{
int get_swigversion() { return SWIGVERSION; }
%}
%pythoncode %{
tmp = hex(get_swigversion())
swigversion = "%d.%d.%d"%(tuple(map(int, [tmp[-5], tmp[-3], tmp[-2:]])))
del tmp, get_swigversion
%}
"""
# Call instant and return module
return instant.build_module(wrap_headers = h_files,
source_directory = source_directory,
additional_declarations = declarations,
system_headers = system_headers,
cmake_packages = ["UFC"],
**kwargs)
def extract_declarations(h_files):
"Extract information for shared_ptr"
# Swig declarations
declarations =r"""
// Use std::shared_ptr
#define SWIG_SHARED_PTR_NAMESPACE std
%include <std_shared_ptr.i>
// Declare which classes should be stored using shared_ptr
%include "swig/ufc_shared_ptr_classes.i"
// Import types from ufc
%import(module="ufc") "ufc.h"
// Swig shared_ptr macro declarations
"""
for h_file in h_files:
# Read the code
code = open(h_file).read()
# Extract the class names
derived_classes = re.findall(r"class[ ]+([\w]+)[ ]*: public", code)
ufc_classes = re.findall(r"public[ ]+(ufc::[\w]+).*", code)
ufc_proxy_classes = [s.replace("ufc::", "") for s in ufc_classes]
new_share_ptr_format = "%%shared_ptr(%s)"
# Write shared_ptr code for swig 2.0.0 or higher
declarations += "\n".join(new_share_ptr_format%c for c in derived_classes)
declarations += "\n"
return declarations
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