CODEWITHSUNDEEP
scala
Simão Martins
Simão Martins

Reputation: 1240

Compiler options warnings vs linter

In Scala 2.12 is there any difference between any of these options:

If not, which one makes more sense to use? I also compile with fatal-warnings, and almost all -Ywarn and -Xlint options.

Upvotes: 2

Views: 539

Answers (1)

Gabriele Petronella
Gabriele Petronella

Reputation: 108169

If you run scalac -Xlint:help you'll see

❯ scalac -Xlint:help
Enable or disable specific warnings
  adapted-args               Warn if an argument list is modified to match the receiver.
  nullary-unit               Warn when nullary methods return Unit.
  inaccessible               Warn about inaccessible types in method signatures.
  nullary-override           Warn when non-nullary `def f()' overrides nullary `def f'.
  infer-any                  Warn when a type argument is inferred to be `Any`.
  missing-interpolator       A string literal appears to be missing an interpolator id.
  doc-detached               A Scaladoc comment appears to be detached from its element.
  private-shadow             A private field (or class parameter) shadows a superclass field.
  type-parameter-shadow      A local type parameter shadows a type already in scope.
  poly-implicit-overload     Parameterized overloaded implicit methods are not visible as viewbounds.
  option-implicit            Option.apply used implicit view.
  delayedinit-select         Selecting member of DelayedInit.
  by-name-right-associative  By-name parameter of right associative operator.
  package-object-classes     Class or object defined in package object.
  unsound-match              Pattern match may not be typesafe.
  stars-align                Pattern sequence wildcard must align with sequence component.
  constant                   Evaluation of a constant arithmetic expression results in an error.
  unused                     Enable -Ywarn-unused:imports,privates,locals,implicits.
Default: All choices are enabled by default.

so there's no difference between selecting Xlint options or using the corresponding flags directly. I would just go with -Xlint (no options, so all enabled by default) and remove the ones I don't need, for example

-Xlint:-unused,_

to enable everything but the unused flag.

Upvotes: 5

Related Questions