patmat-type-check.scala:11: warning: fruitless type test: a value of type Test.Bop4[T] cannot also be a Seq[A]
def s3[T](x: Bop4[T]) = x match { case Seq('b', 'o', 'b') => true }
^
patmat-type-check.scala:15: warning: fruitless type test: a value of type Test.Bop5[_$1,T1,T2] cannot also be a Seq[A]
def s4[T1, T2](x: Bop5[_, T1, T2]) = x match { case Seq('b', 'o', 'b') => true }
^
patmat-type-check.scala:19: warning: fruitless type test: a value of type Test.Bop3[T] cannot also be a Seq[A]
def f4[T](x: Bop3[T]) = x match { case Seq('b', 'o', 'b') => true }
^
patmat-type-check.scala:22: error: scrutinee is incompatible with pattern type;
found : Seq[A]
required: String
def f1 = "bob".reverse match { case Seq('b', 'o', 'b') => true } // fail
^
patmat-type-check.scala:23: error: scrutinee is incompatible with pattern type;
found : Seq[A]
required: Array[Char]
def f2 = "bob".toArray match { case Seq('b', 'o', 'b') => true } // fail
^
patmat-type-check.scala:27: error: scrutinee is incompatible with pattern type;
found : Seq[A]
required: Test.Bop2
def f3(x: Bop2) = x match { case Seq('b', 'o', 'b') => true } // fail
^
patmat-type-check.scala:30: error: scrutinee is incompatible with pattern type;
found : Seq[A]
required: Test.Bop3[Char]
def f4[T](x: Bop3[Char]) = x match { case Seq('b', 'o', 'b') => true } // fail
^
three warnings found
four errors found