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Re: Treating an object as a structure [message #65519 is a reply to message #65424]

Wed, 04 March 2009 15:45

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

llo wrote:
> Ok, thanks ...
>
> With this discussion, all of a sudden I wondered how ITT people
> implement the ALL keyword in GetProperty method of the objects ?
> Because maybe the easiest way to get all the content of the object is
> having the ALL keyword in GetProperty method. ( I know I said I don't
> wanna use this method )
>
> I don't know how can I implement this method. Maybe I will try
> something like this:
>
> PRO object::GetProperty, A=a, B=b, C=c, D=d, E=e, F=f, G=g, ALL=all
>
> ....
>
> IF ARG_PRESENT(all) THEN BEGIN
> all=CREATE_STRUCT
> ('A',self.a,'B',self.b,'C',self.c,'D',self.d,'E',self.e,'F', self.f,'G',self.g)
> ENDIF
> END
>
> Is it correct or there are a better way to do that ?

Just use STRUCT_ASSIGN:

pro mg_instance_test::getProperty, all=all
compile_opt strictarr

if (arg_present(all)) then begin
all = create_struct(name=obj_class(self))
struct_assign, self, all
endif
end

function mg_instance_test::init
compile_opt strictarr

self.a = 3.0
self.b = 'Hello'
self.c = 123L

return, 1
end

pro mg_instance_test__define
compile_opt strictarr

define = { mg_instance_test, a: 0.0, b: '', c: 0L }
end

Run the example like:

IDL> o = obj_new('mg_instance_test')
IDL> o->getProperty, all=all
IDL> help, all, /structures
IDL> obj_destroy, o

Mike
--
www.michaelgalloy.com
Associate Research Scientist
Tech-X Corporation

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[Message index]

		Re: Treating an object as a structure By: David Fanning on Wed, 04 March 2009 15:39
		Re: Treating an object as a structure By: natha on Wed, 04 March 2009 15:05
		Re: Treating an object as a structure By: David Fanning on Wed, 04 March 2009 13:59
		Re: Treating an object as a structure By: natha on Wed, 04 March 2009 13:26
		Re: Treating an object as a structure By: David Fanning on Wed, 04 March 2009 12:40
		Re: Treating an object as a structure By: natha on Thu, 05 March 2009 07:36
		Re: Treating an object as a structure By: Michael Galloy on Wed, 04 March 2009 15:45

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