Remove unnecessary guard

nicolasstucki · nicolasstucki · commit 1e7243a65881 · 2023-08-31T17:55:17.000+02:00
diff --git a/compiler/src/dotty/tools/dotc/core/Definitions.scala b/compiler/src/dotty/tools/dotc/core/Definitions.scala
@@ -1137,9 +1137,8 @@ class Definitions {
      *  Extracts the list of function argument types, the result type and whether function is contextual.
      */
     def unapply(tpe: AppliedType)(using Context): Option[(List[Type], Type, Boolean)] = {
-      val targs = tpe.args
-      if targs.isEmpty || !isFunctionNType(tpe) then None
-      else Some(targs.init, targs.last, tpe.typeSymbol.name.isContextFunction)
+      if !isFunctionNType(tpe) then None
+      else Some(tpe.args.init, tpe.args.last, tpe.typeSymbol.name.isContextFunction)
     }
   }
 

Original file line number	Diff line number	Diff line change
`@@ -1137,9 +1137,8 @@ class Definitions {`
`1137`	`1137`	`* Extracts the list of function argument types, the result type and whether function is contextual.`
`1138`	`1138`	`*/`
`1139`	`1139`	`def unapply(tpe: AppliedType)(using Context): Option[(List[Type], Type, Boolean)] = {`
`1140`		`- val targs = tpe.args`
`1141`		`- if targs.isEmpty \|\| !isFunctionNType(tpe) then None`
`1142`		`- else Some(targs.init, targs.last, tpe.typeSymbol.name.isContextFunction)`
	`1140`	`+ if !isFunctionNType(tpe) then None`
	`1141`	`+ else Some(tpe.args.init, tpe.args.last, tpe.typeSymbol.name.isContextFunction)`
`1143`	`1142`	`}`
`1144`	`1143`	`}`
`1145`	`1144`