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coolbutuseless/many-args.R

Last active August 16, 2019 12:05
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I came here for an argument.
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many-args.R
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Simple demo of a 10 argument function
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
nargs <- 10
f <- function() {}
fargs <- as.pairlist(setNames(rep(1, nargs), paste0('v', seq(nargs))))
formals(f) <- fargs
f
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Simple demo of a 1 million argument function
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
nargs <- 1e6
f <- function() {'hello'}
fargs <- as.pairlist(setNames(rep(1, nargs), paste0('v', seq(nargs))))
formals(f) <- fargs
f()
# 160 MB function!
lobstr::obj_size(f)
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