So here's object lambdas:
//////////
val x = (a=1, b=2, c="m");
val y = (c=9.9, s="Hello");
typedef X = (a:int, b:int, c:string);
typedef Y = (c:double, s:string);
typedef XYZ = extend X, Y with (k:string) end;
var xyz:XYZ = extend x,y with (k="world") end;
println$ xyz.a, xyz.b, xyz.c, xyz.s, xyz.k;
println$ "Felix Rocks";
var a = object (x:int) = { omethod fun getx()=>x; };
println$ (a 1).getx();
var b = a 2;
println$ b.getx();
var d = (object () = { omethod fun getit() => "it"; })();
println$ d.getit();
////////////
The "no argument" object is a bit messy, you have to use ()
for the argument, and then apply the lambda to () to instantiate it
(remember, we're declaring a function so we have to apply it
to get a record out of it).
I also don't like needing to say
d.getit()
i.e. to have to put the () there, this works too:
#(d.getit)
and of course
getit d ()
.Of couse ..
fun ff (var x:int) = {
return (getx = x);
};
println$ (ff 1).getx;
but that's not getting x, it is x :)
--
john skaller
[email protected]
http://felix-lang.org
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