cef/tools/make_ctocpp_header.py

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# 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 cef_parser import *
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()
defname = string.upper(get_capi_name(clsname[3:], False))
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 += """
#ifndef BUILDING_CEF_SHARED
#pragma message("Warning: "__FILE__" may be accessed DLL-side only")
#else // BUILDING_CEF_SHARED
"""
else:
result += """
#ifndef USING_CEF_SHARED
#pragma message("Warning: "__FILE__" may be accessed wrapper-side only")
#else // USING_CEF_SHARED
"""
# build the function body
func_body = ''
funcs = cls.get_virtual_funcs()
for func in funcs:
if clientside:
func_body += ' '+func.get_cpp_proto()+' override;\n'
else:
func_body += ' virtual '+func.get_cpp_proto()+' OVERRIDE;\n'
# 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'
result += """#include "libcef_dll/ctocpp/ctocpp.h"
// Wrap a C structure with a C++ class.
"""
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 CefCToCpp<'+clsname+'CToCpp, '+clsname+', '+capiname+'> {\n'+ \
' public:\n'+ \
' explicit '+clsname+'CToCpp('+capiname+'* str)\n'+ \
' : CefCToCpp<'+clsname+'CToCpp, '+clsname+', '+capiname+'>(str) {}\n\n'+ \
' // '+clsname+' methods\n';
result += func_body
result += '};\n\n'
if clientside:
result += '#endif // BUILDING_CEF_SHARED\n'
else:
result += '#endif // USING_CEF_SHARED\n'
result += '#endif // CEF_LIBCEF_DLL_CTOCPP_'+defname+'_CTOCPP_H_\n'
return wrap_code(result)
def write_ctocpp_header(header, clsname, dir, backup):
file = dir+os.sep+get_capi_name(clsname[3:], False)+'_ctocpp.h'
if path_exists(file):
oldcontents = read_file(file)
else:
oldcontents = ''
newcontents = make_ctocpp_header(header, clsname)
if newcontents != oldcontents:
if backup and oldcontents != '':
backup_file(file)
write_file(file, newcontents)
return True
return False
# 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]))