Macros

[JohnCoene]

Could we have macros? Are they worth it? What's the runtime overhead of calling a function in R.

[JohnCoene]

foo <- function(x = 2) x + 1
rbenchmark::benchmark("fn" = {foo();foo();foo()}, "macro" = {2 + 1; 2 + 1; 2
     + 1}, replications = 1000)

   test replications elapsed relative user.self sys.self user.child sys.child
1    fn         1000   0.002        2     0.002        0          0         0
2 macro         1000   0.001        1     0.001        0          0         0

[JohnCoene]

A text replacement macro a la C is a bit meh but perhaps a start?