[jira] Commented: (BOO-250) overloaded functions cannot be "first class functions"

    [ http://jira.codehaus.org/browse/BOO-250?page=comments#action_47085 ] 

Doug Holton commented on BOO-250:
---------------------------------

Perhaps the compiler could create a method that dispatches to the right 
overload at runtime, like below.  Otherwise, the ironpython solution is to 
specify the types in brackets after the method name like so, but I would have 
thought that this would conflict with generics: r = 
System.Random().Next[int](10,20)

def __parse(*args):  //method created by compiler
        l = len(args)
        if l==1 and args[0] isa string:
                return double.Parse(cast(string,args[0]))
        elif l==2 and args[0] isa string and args[1] isa System.IFormatProvider:
                return 
double.Parse(cast(string,args[0]),cast(System.IFormatProvider,args[1]))
        elif l==2 and args[0] isa string and args[1] isa 
System.Globalization.NumberStyles:
                return 
double.Parse(cast(string,args[0]),cast(System.Globalization.NumberStyles,args[1]))
                
d = __parse //replacement for double.Parse

print d("34.3")


> overloaded functions cannot be "first class functions"
> ------------------------------------------------------
>
>          Key: BOO-250
>          URL: http://jira.codehaus.org/browse/BOO-250
>      Project: Boo
>         Type: Bug
>   Components: Compiler
>     Versions: 0.5
>  Environment: Latest SVN.
>     Reporter: Arron Washington
>     Assignee: Rodrigo B. de Oliveira
>      Fix For: 0.5.6

>
>
> Functions that are overloaded (such as double.Parse and string.Format) cannot 
> be used as first class functions because the compiler cannot resolve to any 
> one of the overloaded functions.

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