Hi Bram and Ken Takata.
I think there is some problem in variable substitution of lambda function.
echo ({y -> ({x -> x(y)(10)})({y -> y})})({z -> z})
yields an error `E121: Undefined variable: y`. I expect this expression yields
10. I tested on Vim 7.4.2048.
JavaScript:
(function(y){ return (function(x){ return x(y)(10); })(function(y){ return y;
}); })(function(z){ return z; })
Python:
(lambda y: (lambda x: x(y)(10))(lambda y: y))(lambda z: z)
Ruby:
(lambda {|y| (lambda {|x| (x.call(y)).call(10)}).call(lambda {|y|
y})}).call(lambda {|z| z})
All these expressions prints 10 as expected.
Anyway, 7.4.2044 is surely a great advance in the history of Vim script. Thanks.
Sincerely,
Ken Hamada
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