Arising out of "Freezing Roles" is a related question.
Suppose I download a module from CPAN with a role I want to use, but it
introduces a method that I want that is in conflict with an existing
method (say one taken from another CPAN module).
How should the method be aliased to prevent it from causing a conflict
at class composition time?
for instance (I think I have the syntax right)
use SQL-DataBase-Module;
use XML-DataBase-Module;
# these are (hypothetical) CPAN modules and contain the roles SQL and XML
# later
class update {
does SQL;
#contains the method 'db-write'
does XML;
# also contains the method 'db-write' and a complete match for SQL role
method
....
According to S14, this will cause a conflict detected at compile time.
S14 suggests writing a class to rename the conflicting method. Perhaps,
class wrapperXML {
does XML;
method xml-db-write ( @_ ) { self.db-write( @_ ) };
};
This seems a bit clunky just to rename a method to prevent a conflict.
Is there syntactic sugar for aliasing the conflicting method? Eg.
something like
does XML :db-write<xml-db-write>;
Moreover, suppose that the two modules have roles with the same name,
eg., suppose XML-Database-Module and SQL-Database both define a role
'Writable'. How could these one (or both) of these roles be aliased?
Richard
