Signature matters! Control side effects with 15 new method signature inspections.

In Scala, method signature semantics goes beyond method name, parameters and result type.
The signature can also tell about whether a method has side effects, or whether a method represents a property.
However, sometimes we forget about writing proper definitions or method calls.
That's where 15 new method signature inspections may help.

Scala plugin 0.4.658 or later is required (download)


Method declaration syntax inspections


Method with Unit result type is parameterless:


Method with Unit result type defined with equals sign:


Method with Unit result type defined like function:


Redundant Unit result type annotation:


Apparent refinement of result type:



Method name inspections

Method with accessor-like name is empty-paren:


Method with accessor-like name has Unit result type:


Method with mutator-like name is parameterless:


Method overriding inspections

Empy-paren Scala method overriden as parameterless:


Parameterless Scala member overriden as empty-paren:


Java accessor method overriden as empty-paren:

Java mutator method overriden as parameterless:


Method access inspections


Empty-paren method accessed as parameterless:


Java accessor method called as empty-paren:


Java mutator method accessed as parameterless: