Hint: Parameter 'i' is declared but never used in 'MyFunction'

[sinys]

When I compiling a package in PL/SQL Developer I get the hint "hint: Parameter 'i' is declared but never used in 'MyFunction'"
I'll try to get it out of "all_errors" (with set "alter session set plsql_debug=true'" before package compiling), there is no hint.
Where this hint come?
PL / SQL Developer itself parser package and displays warnings?

 

[Marco Kalter]

This hint is indeed generated by PL/SQL Developer. Go to Tools > Preferences > Oracle / Hints to configure them.

 

[sinys]

All hints & warnings on this Preferences page generated from engine PL/SQL Developer without oracle engine?

 

[Marco Kalter]

Yes.