Attribute Macro caller_modpath::expose_caller_modpath [−][src]
#[expose_caller_modpath]
Makes Span::caller_modpath()
available to the applied macro, and all functions which it calls.
Note:
This can only be applied to #[proc_macro_attribute]
functions.
#[expose_caller_modpath]
should go above
#[proc_macro_attribute]
For an example, see the top level documentation.