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Passing functions of one namespace to function in different namespace

All,
     I have a script which has multiple namespaces - for simplicity, let's call them Namespace A and Namespace B. 

     When I call a function from Namespace B and I require

Test1 = Namespace("A"); 
Test1:IsLeapYear = function({Input_Year},{Default Local},
       If(Is String(Input_Year),
        Input_Year = Num(Input_Year);
         );
       If( (Mod(Input_Year,400) == 0 | (Mod(Input_Year,4) == 0  & Mod(Input_Year,100)!= 0)),
        return(1);
        ,
        return(0);
         );
        );

Test2 = Namespace("B"); 
Test2:MyFun = function({dt_In,TableVarName,Value},{Default Local},
      dt_In << New Table Variable(TableVarName,Value); 
       );

it to use a function from Namespace A - how can this be achieved ? So, in the above example, if I wanted to pass IsLeapYear to MyFun for use in its evaluation - how can I do that ? 

Re: Passing functions of one namespace to function in different namespace

@txnelson, 
       I failed to realize until I saw your comment that since the namespace has already been included within the script, I could call the function the way I would do it if the namespaces were defined in the same script. 

Re: Passing functions of one namespace to function in different namespace

I am sorry, but I don't understand the issue.  Where the source code comes from does not impact names spaces.  Can you supply a sample of what the include files look like?

Re: Passing functions of one namespace to function in different namespace

@txnelson, 
           I should have probably explained this a little better in the question. 

 

Include(FilePathToNamespaceA); 
Include(FilePathToNamespaceB); 

           If my script looks likes this where namespaces are being included, now how do I call IsLeapYear which belongs to Namespace A in a function of Namespace B?

Re: Passing functions of one namespace to function in different namespace

I am not exactly sure what you are going after, but is this script doing what you want?

names default to here(1);
Test1=New Namespace("A");
Test2=New Namespace("B");

Test1:IsLeapYear = Function( {Input_Year},
 {Default Local},
 If( Is String( Input_Year ),
  Input_Year = Num( Input_Year )
 );
 If(
  (Mod( Input_Year, 400 ) == 0 | (Mod( Input_Year, 4 ) == 0 & Mod( Input_Year, 100 ) != 0)
  ),
  Return( 1 ),
  Return( 0 )
 );
);


Test2:MyFun = Function( {date},
 {Default Local},
 Return=Test1:IsLeapYear(date)
);

show(Test2:MyFun(1960))