Module proc_macro_error::multi

Facility for stacking and emitting multiple errors.

abort! macro stops a proc-macro right away, much like in a panic-like fashion. But sometimes you do not want to stop right there, for example you're processing a list of attributes and want to emit a separate error for every mis-built attribute.

The emit_error! and emit_call_site_error! macros are just for it!

Functions

abort_if_dirty

Abort macro execution and display all the emitted errors, if any.