macro_rules! file {
() => { ... };
}
Expand description
Expands to the file name in which it was invoked.
With line!
and column!
, these macros provide debugging information for
developers about the location within the source.
The expanded expression has type &'static str
, and the returned file
is not the invocation of the file!
macro itself, but rather the
first macro invocation leading up to the invocation of the file!
macro.