Re: Expected behavior for variables which shadow function names

[Julien Bect]

On 07/03/2013 20:13, John W. Eaton wrote:
> Some things to test:
>
>   function f (jet)
>     jet
>   end

Here is what I think the answer should be (based on my own Matlab user 
experience) :

f() --> not enough input arguments
f(0) --> 0
f(1) --> 1

The fact that the symbol "jet" refers to a variable is determined IMO 
when Matlab first parses the function. Therefore, even if nargin == 0, 
jet is assumed to refer to a variable in the context of this function.


> function f (jet)
>     if (nargin == 0)
>       jet
>     elseif (nargin == 1)
>       x = jet
>     end
>   end

Same thing IMO, for the same reasons.


> function f ()
>     jet = 1;
>     clear jet
>     jet
>   end

I think this should generate an error : when the function is parsed, 
Matlab determines that "jet" refers to a local variable in this function.

Therefore, the third line of code should generate an error since jet has 
been cleared.

Best regards,

Julien.