Error code E0185
An associated function for a trait was defined to be static, but an
implementation of the trait declared the same function to be a method (i.e., to
take a self
parameter).
Erroneous code example:
ⓘ
When a type implements a trait's associated function, it has to use the same
signature. So in this case, since Foo::foo
does not take any argument and
does not return anything, its implementation on Bar
should be the same: