Inspectopedia Help

Conflicting type variable variance

Reports type variables whose variance (in, out, or unchecked) conflicts with another declaration. Type variables must match in variance between partial declarations of the same class or module, even if the type variables have different names.

Example:

# Type variable 'B' of class 'Example' has a variance which conflicts with other declarations, ... class Example[A, in B, out C] end # Type variable 'Y' of class 'Example' has a variance which conflicts with other declarations, ... class Example[X, Y, Z] end

Inspection Details

By default bundled with:

Qodana for Ruby 2024.1, RubyMine 2024.1,

Can be installed with plugin:

Ruby, 241.SNAPSHOT

Last modified: 29 April 2024