get_ast() - Code Metrics - Inspection of "fixup! Include SDL.h & libtcod_int.h in cffi names..." - HexDecimal/libtcod-cffi - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — oop-api ( 007516...462cf1 )

by Kyle

created 2016-11-26 21:26 UTC

get_ast() B

↳ Parent: Project

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
cc	2
c	2
b	0
f	0
dl	0
loc	24
rs	8.9713

#!/usr/bin/env python3

import os
import sys

import platform
from pycparser import c_parser, c_ast, parse_file, c_generator
from cffi import FFI

BITSIZE, LINKAGE = platform.architecture()

def walk_sources(directory):
    for path, dirs, files in os.walk(directory):
        for source in files:
            if not source.endswith('.c'):
                continue
            yield os.path.join(path, source)

def find_sources(directory):
    return [os.path.join(directory, source)
            for source in os.listdir(directory)
            if source.endswith('.c')]

module_name = 'tcod._libtcod'
include_dirs = [
                'tcod/',
                'libtcod/include/',
                'libtcod/src/png/',
                'libtcod/src/zlib/',
                '/usr/include/SDL2/',
                ]

extra_compile_args = []
extra_link_args = []
sources = []

sources += [file for file in walk_sources('libtcod/src')
            if 'sys_sfml_c' not in file
            and 'sdl12' not in file
            ]

libraries = []
library_dirs = []
define_macros = [('LIBTCOD_EXPORTS', None),
                 ('TCOD_SDL2', None),
                 ('NO_OPENGL', None),
                 ('TCOD_NO_MACOSX_SDL_MAIN', None),
                 ('_CRT_SECURE_NO_WARNINGS', None),
                 ]

sources += find_sources('tcod/')

if sys.platform == 'win32':
    libraries += ['User32', 'OpenGL32']

if 'linux' in sys.platform:
    libraries += ['GL']

if sys.platform == 'darwin':
    extra_link_args += ['-framework', 'OpenGL']

libraries += ['SDL2']

# included SDL headers are for whatever OS's don't easily come with them

if sys.platform in ['win32', 'darwin']:
    include_dirs += ['dependencies/SDL2-2.0.4/include']

    if BITSIZE == '32bit':
        library_dirs += [os.path.realpath('dependencies/SDL2-2.0.4/lib/x86')]
    else:
        library_dirs += [os.path.realpath('dependencies/SDL2-2.0.4/lib/x64')]

if sys.platform in ['win32', 'darwin']:
    include_dirs += ['libtcod/src/zlib/']

class CustomPostParser(c_ast.NodeVisitor):

    def __init__(self):
        self.ast = None
        self.typedefs = None

    def parse(self, ast):
        self.ast = ast
        self.typedefs = []
        self.visit(ast)
        return ast

    def visit_Typedef(self, node):
        start_node = node
        if node.name in ['wchar_t', 'size_t']:
            # remove fake typedef placeholders
            self.ast.ext.remove(node)
        else:
            self.generic_visit(node)
            if node.name in self.typedefs:
                print('%s redefined' % node.name)
            self.typedefs.append(node.name)

    def visit_EnumeratorList(self, node):
        """Replace enumerator expressions with '...' stubs."""
        for type, enum in node.children():
            if enum.value is None:
                pass
            elif isinstance(enum.value, (c_ast.BinaryOp, c_ast.UnaryOp)):
                enum.value = c_ast.Constant('int', '...')
            else:
                enum.value = c_ast.Constant(enum.value.type, '...')

    def visit_Decl(self, node):
        if node.name is None:
            self.generic_visit(node)
        elif (node.name and 'vsprint' in node.name or
              node.name in ['SDL_vsscanf',
                            'SDL_vsnprintf',
                            'SDL_LogMessageV']):
            # exclude va_list related functions
            self.ast.ext.remove(node)
        elif node.name in ['screen']:
            # exclude outdated 'extern SDL_Surface* screen;' line
            self.ast.ext.remove(node)
        else:
            self.generic_visit(node)

    def visit_FuncDef(self, node):
        """Exclude function definitions.  Should be declarations only."""
        self.ast.ext.remove(node)

def get_cdef():
    generator = c_generator.CGenerator()
    return generator.visit(get_ast())

def get_ast():
    if 'win32' in sys.platform:
        sdl_include = r'-Idependencies/SDL2-2.0.4/include'
    else:
        sdl_include = r'-I/usr/include/SDL2'
    ast = parse_file(filename='tcod/tcod.h', use_cpp=True,
                     cpp_args=[r'-Idependencies/fake_libc_include',
                               r'-Ilibtcod/include',
                               sdl_include,
                               r'-DDECLSPEC=',
                               r'-DSDLCALL=',
                               r'-DTCODLIB_API=',
                               r'-DTCOD_NO_MACOSX_SDL_MAIN=',
                               r'-DTCOD_SDL2=',
                               r'-DNO_OPENGL',
                               r'-DSDL_FORCE_INLINE=',
                               r'-U__GNUC__',
                               r'-D_SDL_thread_h',
                               r'-DDOXYGEN_SHOULD_IGNORE_THIS',
                               r'-DSDL_MAIN_HANDLED',
                               r'-U__cplusplus ',
                               ])
    ast = CustomPostParser().parse(ast)
    return ast

ffi = FFI()
ffi.cdef(get_cdef())
ffi.cdef('''
extern "Python" {
    static bool pycall_parser_new_struct(TCOD_parser_struct_t str,const char *name);
    static bool pycall_parser_new_flag(const char *name);
    static bool pycall_parser_new_property(const char *propname, TCOD_value_type_t type, TCOD_value_t value);
    static bool pycall_parser_end_struct(TCOD_parser_struct_t str, const char *name);
    static void pycall_parser_error(const char *msg);

    static bool _pycall_bsp_callback(TCOD_bsp_t *node, void *userData);

    static float _pycall_path_func( int xFrom, int yFrom, int xTo, int yTo, void *user_data );

    static bool _pycall_line_listener(int x, int y);

    static void _pycall_sdl_hook(void *);
}
''')
ffi.set_source(
    module_name, '#include <tcod.h>',
    include_dirs=include_dirs,
    library_dirs=library_dirs,
    sources=sources,
    libraries=libraries,
    extra_compile_args=extra_compile_args,
    extra_link_args=extra_link_args,
    define_macros=define_macros,
)

if __name__ == "__main__":
    ffi.compile()


1			#!/usr/bin/env python3
2
3			import os
4			import sys
5
6			import platform
7			from pycparser import c_parser, c_ast, parse_file, c_generator
8			from cffi import FFI
9
10			BITSIZE, LINKAGE = platform.architecture()
11
12			def walk_sources(directory):
13			for path, dirs, files in os.walk(directory):
14			for source in files:
15			if not source.endswith('.c'):
16			continue
17			yield os.path.join(path, source)
18
19			def find_sources(directory):
20			return [os.path.join(directory, source)
21			for source in os.listdir(directory)
22			if source.endswith('.c')]
23
24			module_name = 'tcod._libtcod'
25			include_dirs = [
26			'tcod/',
27			'libtcod/include/',
28			'libtcod/src/png/',
29			'libtcod/src/zlib/',
30			'/usr/include/SDL2/',
31			]
32
33			extra_compile_args = []
34			extra_link_args = []
35			sources = []
36
37			sources += [file for file in walk_sources('libtcod/src')
38			if 'sys_sfml_c' not in file
39			and 'sdl12' not in file
40			]
41
42			libraries = []
43			library_dirs = []
44			define_macros = [('LIBTCOD_EXPORTS', None),
45			('TCOD_SDL2', None),
46			('NO_OPENGL', None),
47			('TCOD_NO_MACOSX_SDL_MAIN', None),
48			('_CRT_SECURE_NO_WARNINGS', None),
49			]
50
51			sources += find_sources('tcod/')
52
53			if sys.platform == 'win32':
54			libraries += ['User32', 'OpenGL32']
55
56			if 'linux' in sys.platform:
57			libraries += ['GL']
58
59			if sys.platform == 'darwin':
60			extra_link_args += ['-framework', 'OpenGL']
61
62			libraries += ['SDL2']
63
64			# included SDL headers are for whatever OS's don't easily come with them
65
66			if sys.platform in ['win32', 'darwin']:
67			include_dirs += ['dependencies/SDL2-2.0.4/include']
68
69			if BITSIZE == '32bit':
70			library_dirs += [os.path.realpath('dependencies/SDL2-2.0.4/lib/x86')]
71			else:
72			library_dirs += [os.path.realpath('dependencies/SDL2-2.0.4/lib/x64')]
73
74			if sys.platform in ['win32', 'darwin']:
75			include_dirs += ['libtcod/src/zlib/']
76
77			class CustomPostParser(c_ast.NodeVisitor):
78
79			def __init__(self):
80			self.ast = None
81			self.typedefs = None
82
83			def parse(self, ast):
84			self.ast = ast
85			self.typedefs = []
86			self.visit(ast)
87			return ast
88
89			def visit_Typedef(self, node):
90			start_node = node
91			if node.name in ['wchar_t', 'size_t']:
92			# remove fake typedef placeholders
93			self.ast.ext.remove(node)
94			else:
95			self.generic_visit(node)
96			if node.name in self.typedefs:
97			print('%s redefined' % node.name)
98			self.typedefs.append(node.name)
99
100			def visit_EnumeratorList(self, node):
101			"""Replace enumerator expressions with '...' stubs."""
102			for type, enum in node.children():
103			if enum.value is None:
104			pass
105			elif isinstance(enum.value, (c_ast.BinaryOp, c_ast.UnaryOp)):
106			enum.value = c_ast.Constant('int', '...')
107			else:
108			enum.value = c_ast.Constant(enum.value.type, '...')
109
110			def visit_Decl(self, node):
111			if node.name is None:
112			self.generic_visit(node)
113			elif (node.name and 'vsprint' in node.name or
114			node.name in ['SDL_vsscanf',
115			'SDL_vsnprintf',
116			'SDL_LogMessageV']):
117			# exclude va_list related functions
118			self.ast.ext.remove(node)
119			elif node.name in ['screen']:
120			# exclude outdated 'extern SDL_Surface* screen;' line
121			self.ast.ext.remove(node)
122			else:
123			self.generic_visit(node)
124
125			def visit_FuncDef(self, node):
126			"""Exclude function definitions. Should be declarations only."""
127			self.ast.ext.remove(node)
128
129			def get_cdef():
130			generator = c_generator.CGenerator()
131			return generator.visit(get_ast())
132
133			def get_ast():
134			if 'win32' in sys.platform:
135			sdl_include = r'-Idependencies/SDL2-2.0.4/include'
136			else:
137			sdl_include = r'-I/usr/include/SDL2'
138			ast = parse_file(filename='tcod/tcod.h', use_cpp=True,
139			cpp_args=[r'-Idependencies/fake_libc_include',
140			r'-Ilibtcod/include',
141			sdl_include,
142			r'-DDECLSPEC=',
143			r'-DSDLCALL=',
144			r'-DTCODLIB_API=',
145			r'-DTCOD_NO_MACOSX_SDL_MAIN=',
146			r'-DTCOD_SDL2=',
147			r'-DNO_OPENGL',
148			r'-DSDL_FORCE_INLINE=',
149			r'-U__GNUC__',
150			r'-D_SDL_thread_h',
151			r'-DDOXYGEN_SHOULD_IGNORE_THIS',
152			r'-DSDL_MAIN_HANDLED',
153			r'-U__cplusplus ',
154			])
155			ast = CustomPostParser().parse(ast)
156			return ast
157
158			ffi = FFI()
159			ffi.cdef(get_cdef())
160			ffi.cdef('''
161			extern "Python" {
162			static bool pycall_parser_new_struct(TCOD_parser_struct_t str,const char *name);
163			static bool pycall_parser_new_flag(const char *name);
164			static bool pycall_parser_new_property(const char *propname, TCOD_value_type_t type, TCOD_value_t value);
165			static bool pycall_parser_end_struct(TCOD_parser_struct_t str, const char *name);
166			static void pycall_parser_error(const char *msg);
167
168			static bool _pycall_bsp_callback(TCOD_bsp_t node, void userData);
169
170			static float _pycall_path_func( int xFrom, int yFrom, int xTo, int yTo, void *user_data );
171
172			static bool _pycall_line_listener(int x, int y);
173
174			static void _pycall_sdl_hook(void *);
175			}
176			''')
177			ffi.set_source(
178			module_name, '#include <tcod.h>',
179			include_dirs=include_dirs,
180			library_dirs=library_dirs,
181			sources=sources,
182			libraries=libraries,
183			extra_compile_args=extra_compile_args,
184			extra_link_args=extra_link_args,
185			define_macros=define_macros,
186			)
187
188			if __name__ == "__main__":
189			ffi.compile()
190

HexDecimal / libtcod-cffi

Push — oop-api ( 007516...462cf1 )

get_ast() B

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