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Don't warn about discarded return values (#28403)

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* Since we have and use many API's where the return value can be safely
ignored.
* akka-cluster-sharding also does implicit widening
This commit is contained in:
Arnout Engelen 2020-01-22 05:47:18 +01:00 • committed by Helena Edelson
parent a9750b3c37
commit ef08d9fe5c
1 changed files with 27 additions and 9 deletions
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36
project/AkkaDisciplinePlugin.scala
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@ -19,7 +19,29 @@ object AkkaDisciplinePlugin extends AutoPlugin with ScalafixSupport {
// We allow warnings in docs to get the 'snippets' right
val nonFatalWarningsFor = Set("akka-docs")
val strictProjects = Set("akka-discovery", "akka-protobuf", "akka-coordination")
val looseProjects = Set(
"akka-actor",
"akka-actor-testkit-typed",
"akka-actor-tests",
"akka-actor-typed",
"akka-actor-typed-tests",
"akka-bench-jmh",
"akka-cluster",
"akka-cluster-metrics",
"akka-cluster-sharding",
"akka-distributed-data",
"akka-persistence",
"akka-persistence-tck",
"akka-persistence-typed",
"akka-persistence-query",
"akka-remote",
"akka-remote-tests",
"akka-stream",
"akka-stream-testkit",
"akka-stream-tests",
"akka-stream-tests-tck",
"akka-testkit",
)
lazy val scalaFixSettings = Seq(Compile / scalacOptions += "-Yrangepos")
@ -54,8 +76,8 @@ object AkkaDisciplinePlugin extends AutoPlugin with ScalafixSupport {
Nil
}).toSeq,
Compile / scalacOptions --=
(if (strictProjects.contains(name.value)) Seq.empty
else undisciplineScalacOptions.toSeq),
(if (looseProjects.contains(name.value)) undisciplineScalacOptions.toSeq
else Seq.empty),
// Discipline is not needed for the docs compilation run (which uses
// different compiler phases from the regular run), and in particular
// '-Ywarn-unused:explicits' breaks 'sbt ++2.13.0-M5 akka-actor/doc'
@ -65,22 +87,18 @@ object AkkaDisciplinePlugin extends AutoPlugin with ScalafixSupport {
Compile / console / scalacOptions --= disciplineScalacOptions.toSeq)
val testUndicipline = Seq(
"-Ywarn-dead-code", // ??? used in compile only specs
"-Ywarn-value-discard" // Ignoring returned assertions
"-Ywarn-dead-code", // '???' used in compile only specs
)
/**
* Remain visibly filtered for future code quality work and removing.
*/
val undisciplineScalacOptions = Set("-Ywarn-value-discard", "-Ywarn-numeric-widen")
val undisciplineScalacOptions = Set("-Ywarn-numeric-widen")
/** These options are desired, but some are excluded for the time being*/
val disciplineScalacOptions = Set(
// start: must currently remove, version regardless
"-Ywarn-value-discard",
"-Ywarn-numeric-widen",
"-Yno-adapted-args",
// end
"-deprecation",
"-Xlint",
"-Ywarn-dead-code",