Sunday, February 28, 2021

Vim9: call function from variadic function?

This might be a bit of a stretch, but... is it possible to
"expand/split" variable arguments to call another function with fixed
arguments? I would like to define a function that takes as input another
function F and some values v1, vn... , and applies F to v1, ..., vn.

For example, I can define:

def F(a: string, b: number)
enddef

def G(...values: list<any>): void
F(values[0], values[1])
enddef

G('xyz', 42)

I would like to generalize G so that it can invoke any function, i.e.:

def G2(F: func, ...values: list<any>): void
F(XXXX)
enddef

G2(F, 'xyz', 42)

The problem is: what can I put in place of XXXX? F(values) doesn't cut
it.

Thanks,
Life.


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