Re: [Proposal] Extend no-parenthesis notation to variables
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- Subject: Re: [Proposal] Extend no-parenthesis notation to variables
- From: Jonathan Goble <jcgoble3@...>
- Date: 2019年10月20日 12:11:35 -0400
On Sun, Oct 20, 2019 at 12:03 PM Mattia Maldini
<mattia512maldini@gmail.com> wrote:
>
> > I think you could achieve the same behaviour easier:
> Yes, but only in the specific case of string concatenation; my idea is to have all generic functions with partial argument invocation and space-separated variable parameters.
The problem is that functions are first-class values, and any object
can be callable if its metatable has a __call metamethod.
So what does this do?
x = var1 var2 var3 var4
Does that become var1(var2, var3, var4), var1(var2(var3, var4)),
var1(var2, var3(var4)), var1(var2(var3), var4), or
var1(var2(var3(var4)))? Remember that passing a function as an
argument to another function is perfectly valid and in many cases
desirable, and anything can be callable.
There's too much ambiguity here for what you want.