CA020 - Variable not read after assignment

Description

An assignment to a local variable has not effect at all if the variable is not read after the assignment, or reassigned.

Example of violation

local x, y: INTEGER do x := 3 y := some_height_query x := some_width_query ... end

Recommendation

Remove the assignment without effect.

In the example, remove the first assignment to x: local x, y: INTEGER do y := some_height_query x := some_width_query ... end

See Also: CA071 - Self-comparison