tests/pos/t3278.scala


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class Foo
class Test {
	def update[B](x : B, b : Int): Unit = {}
	def apply[B](x : B) = 1
}
class Test2 {
  type B = Foo
	def update(x : B, b : Int): Unit = {}
	def apply(x : B) = 1
}

object Test {
	def main(a : Array[String]): Unit = {
		val a = new Test
		val f = new Foo
		a(f) = 1 //works
		a(f) = a(f) + 1 //works
		a(f) += 1 //error: reassignment to val
	}
}
object Test2 {
	def main(args : Array[String]): Unit = {
                args(0) += "a"
		val a = new Test2
		val f = new Foo
		a(f) = 1 //works
		a(f) = a(f) + 1 //works
		a(f) += 1 //error: reassignment to val
	}
}