1 // Conversion functions to convert Nasal types to C++ types
3 // Copyright (C) 2012 Thomas Geymayer <tomgey@gmail.com>
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Library General Public
7 // License as published by the Free Software Foundation; either
8 // version 2 of the License, or (at your option) any later version.
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Library General Public License for more details.
15 // You should have received a copy of the GNU Library General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 #include "from_nasal_detail.hxx"
20 #include "NasalHash.hxx"
21 #include "NasalString.hxx"
23 #include <simgear/misc/sg_path.hxx>
27 //----------------------------------------------------------------------------
28 bad_nasal_cast::bad_nasal_cast()
33 //----------------------------------------------------------------------------
34 bad_nasal_cast::bad_nasal_cast(const std::string& msg):
40 //----------------------------------------------------------------------------
41 bad_nasal_cast::~bad_nasal_cast() throw()
46 //----------------------------------------------------------------------------
47 const char* bad_nasal_cast::what() const throw()
49 return _msg.empty() ? bad_cast::what() : _msg.c_str();
52 //----------------------------------------------------------------------------
53 std::string from_nasal_helper(naContext c, naRef ref, const std::string*)
55 naRef na_str = naStringValue(c, ref);
56 return std::string(naStr_data(na_str), naStr_len(na_str));
59 //----------------------------------------------------------------------------
60 SGPath from_nasal_helper(naContext c, naRef ref, const SGPath*)
62 naRef na_str = naStringValue(c, ref);
63 return SGPath(std::string(naStr_data(na_str), naStr_len(na_str)));
66 //----------------------------------------------------------------------------
67 Hash from_nasal_helper(naContext c, naRef ref, const Hash*)
70 throw bad_nasal_cast("Not a hash");
75 //----------------------------------------------------------------------------
76 String from_nasal_helper(naContext c, naRef ref, const String*)
78 if( !naIsString(ref) )
79 throw bad_nasal_cast("Not a string");