Hello all,
I am slowly working through creating a C extension for ruby. There
are a couple of methods that would fit more correctly in existing
classes (specifically String and a few others). This is very easy to
do in Ruby, however, it I can't seem to find the way to go about it in
C. Any help would be appreciated.
Thanks
Eric
--
I'm a programmer, I don't have to spell correctly; I just have to
spell consistently
Eric Merritt <cyberlync@gmail.com> writes:
Hello all,
I am slowly working through creating a C extension for ruby. There
are a couple of methods that would fit more correctly in existing
classes (specifically String and a few others). This is very easy to
do in Ruby, however, it I can't seem to find the way to go about it in
C. Any help would be appreciated.
I may missing something but what about
rb_define_method.
Get a handle to the String class and use rb_define_method
Regards
Friedrich
--
Please remove just-for-news- to reply via e-mail.
You should be able to define extension methods for built-in classes the
same way you do for your own module.
For example:
VALUE my_extension_method(VALUE klass, VALUE self) {
/* do something here... */
return Qnil;
}
void Init_my_extension() {
rb_define_method(rb_cString, "my_method_name", my_extension_method,
0);
}
--
Lennon
rcoder.net
see inline ->
Eric Merritt <cyberlync@gmail.com> writes:
> Hello all,
>
> I am slowly working through creating a C extension for ruby. There
> are a couple of methods that would fit more correctly in existing
> classes (specifically String and a few others). This is very easy to
> do in Ruby, however, it I can't seem to find the way to go about it in
> C. Any help would be appreciated.
I may missing something but what about
rb_define_method.
no, no. lol. I get this.
Get a handle to the String class and use rb_define_method
Thats the question, how do you get a handle to an existing class. I
see plenty of documentation on how to create a class, but not how to
get a handle on an existing class.
-eric
On Sat, 9 Oct 2004 18:34:42 +0900, Friedrich Dominicus <just-for-news-frido@q-software-solutions.de> wrote:
Regards
Friedrich--
Please remove just-for-news- to reply via e-mail.
--
I'm a programmer, I don't have to spell correctly; I just have to
spell consistently
This is helpful too:
VALUE rb_path2class _((const char*));
assert(rb_cString == rb_path2class("String"));
assert(rb_cArray == rb_path2class("Array"));
assert(cMyClass == rb_path2class("MyModule::MyClass"));
-Charlie
On Oct 9, 2004, at 3:29 PM, rcoder wrote:
You should be able to define extension methods for built-in classes the
same way you do for your own module.For example:
VALUE my_extension_method(VALUE klass, VALUE self) {
/* do something here... */
return Qnil;
}void Init_my_extension() {
rb_define_method(rb_cString, "my_method_name", my_extension_method,
0);
}--
Lennon
rcoder.net
The VALUE for String is rb_cString, and is defined in ruby.h.
If it wasn't there you could always get the class through Object:
rb_const_get(rb_cObject, rb_intern("String"));
Regards,
Kristof
On Sun, 10 Oct 2004 04:01:31 +0900, Eric Merritt wrote:
Get a handle to the String class and use rb_define_method
Thats the question, how do you get a handle to an existing class. I
see plenty of documentation on how to create a class, but not how to get a
handle on an existing class.
Ah! thank you so much!
On Sun, 10 Oct 2004 04:39:47 +0900, Kristof Bastiaensen <kristof@vleeuwen.org> wrote:
On Sun, 10 Oct 2004 04:01:31 +0900, Eric Merritt wrote:
>> Get a handle to the String class and use rb_define_method
>
> Thats the question, how do you get a handle to an existing class. I
> see plenty of documentation on how to create a class, but not how to get a
> handle on an existing class.
>The VALUE for String is rb_cString, and is defined in ruby.h.
If it wasn't there you could always get the class through Object:rb_const_get(rb_cObject, rb_intern("String"));
Regards,
Kristof
--
I'm a programmer, I don't have to spell correctly; I just have to
spell consistently