| 1 | // |
| 2 | // SWIG typemaps for std::string |
| 3 | // Luigi Ballabio |
| 4 | // Apr 8, 2002 |
| 5 | // |
| 6 | // Ruby implementation |
| 7 | |
| 8 | |
| 9 | // ------------------------------------------------------------------------ |
| 10 | // std::string is typemapped by value |
| 11 | // This can prevent exporting methods which return a string |
| 12 | // in order for the user to modify it. |
| 13 | // However, I think I'll wait until someone asks for it... |
| 14 | // ------------------------------------------------------------------------ |
| 15 | |
| 16 | %include exception.i |
| 17 | |
| 18 | %{ |
| 19 | #include <string> |
| 20 | %} |
| 21 | |
| 22 | namespace std { |
| 23 | |
| 24 | // Ruby wants class names to start with a capital letter |
| 25 | %rename(String) string; |
| 26 | class string; |
| 27 | |
| 28 | /* Overloading check */ |
| 29 | %typemap(typecheck) string = char *; |
| 30 | %typemap(typecheck) const string & = char *; |
| 31 | |
| 32 | %typemap(in) string { |
| 33 | if (TYPE($input) == T_STRING) { |
| 34 | $1 = std::string(StringValuePtr($input)); |
| 35 | } else { |
| 36 | SWIG_exception(SWIG_TypeError, "not a string"); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | %typemap(in) const string & (std::string temp) { |
| 41 | if (TYPE($input) == T_STRING) { |
| 42 | temp = std::string(StringValuePtr($input)); |
| 43 | $1 = &temp; |
| 44 | } else { |
| 45 | SWIG_exception(SWIG_TypeError, "not a string"); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | %typemap(out) string { |
| 50 | $result = rb_str_new2($1.c_str()); |
| 51 | } |
| 52 | |
| 53 | %typemap(out) const string & { |
| 54 | $result = rb_str_new2($1->c_str()); |
| 55 | } |
| 56 | |
| 57 | %typemap(directorin) string, const string &, string & { |
| 58 | $input = rb_str_new2($1_name.c_str()); |
| 59 | } |
| 60 | |
| 61 | %typemap(directorin) string *, const string * { |
| 62 | $input = rb_str_new2($1_name->c_str()); |
| 63 | } |
| 64 | |
| 65 | %typemap(directorout) string { |
| 66 | if (TYPE($input) == T_STRING) |
| 67 | $result = std::string(StringValuePtr($input)); |
| 68 | else |
| 69 | throw Swig::DirectorTypeMismatchException("string expected"); |
| 70 | } |
| 71 | |
| 72 | %typemap(directorout,warning=SWIG_WARN_TYPEMAP_THREAD_UNSAFE) const string & { |
| 73 | if (TYPE($input) == T_STRING) { |
| 74 | static std::string temp = std::string(StringValuePtr($input)); |
| 75 | $result = &temp; |
| 76 | } else { |
| 77 | throw Swig::DirectorTypeMismatchException("string expected"); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | %typemap(throws) string, const string & |
| 82 | "rb_raise(rb_eRuntimeError, $1.c_str());"; |
| 83 | |
| 84 | %typemap(throws) string *, const string * |
| 85 | "rb_raise(rb_eRuntimeError, $1->c_str());"; |
| 86 | } |