Clean up the way compiler settings are accessed in the backend.

Many backend components don't have access to the compiler instance
holding the settings.

Before this change, individual settings required in these parts of the
backend were made available as members of trait BTypes, implemented
in the subclass BTypesFromSymbols (which has access to global).

This change exposes a single value of type ScalaSettings in the super
trait BTypes, which gives access to all compiler settings.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala
index ee683418d9..9d7cf8cfaa 100644
--- a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala
+++ b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala
@@ -282,6 +282,15 @@ trait ScalaSettings extends AbsScalaSettings
     else YinlinerWarnings.value = true
   })
 
+  def YoptWarningEmitAtInlineFailed =
+    !YoptWarnings.isSetByUser ||
+      YoptWarnings.contains(YoptWarningsChoices.atInlineFailedSummary) ||
+      YoptWarnings.contains(YoptWarningsChoices.atInlineFailed)
+
+  def YoptWarningNoInlineMixed                      = YoptWarnings.contains(YoptWarningsChoices.noInlineMixed)
+  def YoptWarningNoInlineMissingBytecode            = YoptWarnings.contains(YoptWarningsChoices.noInlineMissingBytecode)
+  def YoptWarningNoInlineMissingScalaInlineInfoAttr = YoptWarnings.contains(YoptWarningsChoices.noInlineMissingScalaInlineInfoAttr)
+
   private def removalIn212 = "This flag is scheduled for removal in 2.12. If you have a case where you need this flag then please report a bug."
 
   object YstatisticsPhases extends MultiChoiceEnumeration { val parser, typer, patmat, erasure, cleanup, jvm = Value }