R does not complain when one runs:
library(magrittr)
f <- function(x){x} %>% f
(but running f(1) throws a C stack error).
However, isn't it equivalent to:
f <- f(function(x){x})
which throws the error f not found?
Why does the first command not throw an error?
function binds less strongly than the infix operator %>%. This means that your code is equivalent to
f <- function(x) ({x} %>% f)
And not to
f <- (function(x) {x}) %>% f
The latter does indeed raise the error you’re expecting.
This is equivalent to :
f <- function(x) f(x)
and results in an infinite recursive call
Ah I understand:
> body(f)
{
x
} %>% f
In fact this is equivalent to f <- function(x){{x} %>% f}.