std::file!
[−]
[src]
macro_rules! file { () => ({ /* compiler built-in */ }) }
A macro which expands to the file name from which it was invoked.
The expanded expression has type &'static str
`&'static str, and the returned file is not the invocation of the
`, and the returned file
is not the invocation of the file!()
`file!()macro itself, but rather the first macro invocation leading up to the invocation of the
` macro itself, but rather the
first macro invocation leading up to the invocation of the file!()
`file!()`
macro.
Examples
fn main() { let this_file = file!(); println!("defined in file: {}", this_file); }let this_file = file!(); println!("defined in file: {}", this_file);