Given Tcl 8.5's {*} expand feature, and an earlier thought experiment about adding a leading "$" to every command (can't recall what wiki page this was) ...

What would a system be like if it worked as follows - this notation:

    set obj {...}
    set result [obj arg1 arg2 arg3]

... would behave as if it had been written as follows in Tcl 8.5:

    set obj {...}
    set result [{*}$obj arg1 arg2 arg3]

It obviously wouldn't be Tcl, since the variable and command namespace get mixed up when you start doing this.

But suppose you didn't care (Tcl 3000!) - would it be ''useful? convenient? worth looking into?''

[MJ] - I am not seeing the use for the implicit $, is it so much trouble to write [[$obj arg1 arg2 arg3]]? Autoexpansion of the leading word would be very useful however (especially in OO type constructs and functional programming). 

It seems you are suggesting unification of variables and procs, which sounds a lot like the concept of slots in [Self], in that case $ will become unnecessary. Getting the value of a var is simply [[var]].

[DKF]: This idea ("auto expand leading word") has been known about and discussed (on and off, when we've nothing else to do) for years.

[JJS]: Isn't this a lot like [[interp alias]]?

    interp alias {} obj {} ...      ;# instead of set obj {...}
    set result [obj arg1 arg2 arg3] ;# works like {*}$obj

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[RS]: See [Let unknown know] how to tweak Tcl that it does auto-expansion of leading word... :^)

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