cef/tools/make_ctocpp_header.py
2021-06-17 16:16:53 -04:00

155 lines
4.5 KiB
Python

# Copyright (c) 2011 The Chromium Embedded Framework Authors. All rights
# reserved. Use of this source code is governed by a BSD-style license that
# can be found in the LICENSE file.
from __future__ import absolute_import
from cef_parser import *
def make_function_body_block(cls):
impl = ' // ' + cls.get_name() + ' methods.\n'
funcs = cls.get_virtual_funcs()
for func in funcs:
impl += ' ' + func.get_cpp_proto()
if cls.is_client_side():
impl += ' override;\n'
else:
impl += ' override;\n'
return impl
def make_function_body(header, cls):
impl = make_function_body_block(cls)
cur_cls = cls
while True:
parent_name = cur_cls.get_parent_name()
if is_base_class(parent_name):
break
else:
parent_cls = header.get_class(parent_name)
if parent_cls is None:
raise Exception('Class does not exist: ' + parent_name)
if len(impl) > 0:
impl += '\n'
impl += make_function_body_block(parent_cls)
cur_cls = header.get_class(parent_name)
return impl
def make_ctocpp_header(header, clsname):
cls = header.get_class(clsname)
if cls is None:
raise Exception('Class does not exist: ' + clsname)
clientside = cls.is_client_side()
directory = cls.get_file_directory()
defname = ''
if not directory is None:
defname += directory + '_'
defname += get_capi_name(clsname[3:], False)
defname = defname.upper()
capiname = cls.get_capi_name()
result = get_copyright()
result += '#ifndef CEF_LIBCEF_DLL_CTOCPP_'+defname+'_CTOCPP_H_\n'+ \
'#define CEF_LIBCEF_DLL_CTOCPP_'+defname+'_CTOCPP_H_\n' + \
'#pragma once\n'
if clientside:
result += """
#if !defined(BUILDING_CEF_SHARED)
#error This file can be included DLL-side only
#endif
"""
else:
result += """
#if !defined(WRAPPING_CEF_SHARED)
#error This file can be included wrapper-side only
#endif
"""
# build the function body
func_body = make_function_body(header, cls)
# include standard headers
if func_body.find('std::map') > 0 or func_body.find('std::multimap') > 0:
result += '\n#include <map>'
if func_body.find('std::vector') > 0:
result += '\n#include <vector>'
# include the headers for this class
result += '\n#include "include/'+cls.get_file_name()+'"'+ \
'\n#include "include/capi/'+cls.get_capi_file_name()+'"\n'
# include headers for any forward declared classes that are not in the same file
declares = cls.get_forward_declares()
for declare in declares:
dcls = header.get_class(declare)
if dcls.get_file_name() != cls.get_file_name():
result += '#include "include/'+dcls.get_file_name()+'"\n' \
'#include "include/capi/'+dcls.get_capi_file_name()+'"\n'
base_class_name = header.get_base_class_name(clsname)
base_scoped = True if base_class_name == 'CefBaseScoped' else False
if base_scoped:
template_file = 'ctocpp_scoped.h'
template_class = 'CefCToCppScoped'
else:
template_file = 'ctocpp_ref_counted.h'
template_class = 'CefCToCppRefCounted'
result += '#include "libcef_dll/ctocpp/' + template_file + '"'
result += '\n\n// Wrap a C structure with a C++ class.\n'
if clientside:
result += '// This class may be instantiated and accessed DLL-side only.\n'
else:
result += '// This class may be instantiated and accessed wrapper-side only.\n'
result += 'class '+clsname+'CToCpp\n'+ \
' : public ' + template_class + '<'+clsname+'CToCpp, '+clsname+', '+capiname+'> {\n'+ \
' public:\n'+ \
' '+clsname+'CToCpp();\n'+ \
' virtual ~'+clsname+'CToCpp();\n\n'
result += func_body
result += '};\n\n'
result += '#endif // CEF_LIBCEF_DLL_CTOCPP_' + defname + '_CTOCPP_H_'
return result
def write_ctocpp_header(header, clsname, dir):
# give the output file the same directory offset as the input file
cls = header.get_class(clsname)
dir = os.path.dirname(os.path.join(dir, cls.get_file_name()))
file = os.path.join(dir, get_capi_name(clsname[3:], False) + '_ctocpp.h')
newcontents = make_ctocpp_header(header, clsname)
return (file, newcontents)
# test the module
if __name__ == "__main__":
import sys
# verify that the correct number of command-line arguments are provided
if len(sys.argv) < 3:
sys.stderr.write('Usage: ' + sys.argv[0] + ' <infile> <classname>')
sys.exit()
# create the header object
header = obj_header()
header.add_file(sys.argv[1])
# dump the result to stdout
sys.stdout.write(make_ctocpp_header(header, sys.argv[2]))