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trait A extends DelayedInit
{
print("-A")
def delayedInit(body: => Unit) = {
body
postConstructionCode
}
def postConstructionCode: Unit = {
print("\n A+")
}
}
trait B extends A {
print(" -B")
override def postConstructionCode: Unit = {
super.postConstructionCode
print(" B+")
}
}
trait C extends B {
print(" -C")
override def postConstructionCode: Unit = {
super.postConstructionCode
print(" C+")
}
}
class D() extends C {
print(" -D")
override def postConstructionCode: Unit = {
super.postConstructionCode
print(" D+")
}
}
class E() extends D() {
print(" -E")
override def postConstructionCode: Unit = {
super.postConstructionCode
print(" E+")
}
}
object Test {
def p(msg: String) = println("\n\n// " + msg)
def main(args: Array[String]) {
val f: A => Unit = _ => ()
p("new C { }")
f(new C { })
p("new C { 5 }")
f(new C { 5 })
p("new D()")
f(new D())
p("new D() { }")
f(new D() { })
p("new D() { val x = 5 }")
f(new D() { val x = 5 })
p("new { val x = 5 } with D()")
f(new { val x = 5 } with D())
p("new E() { val x = 5 }")
f(new E() { val x = 5 })
p("new { val x = 5 } with E()")
f(new { val x = 5 } with E())
p("new { val x = 5 } with E() { }")
f(new { val x = 5 } with E() { })
p("new { val x = 5 } with E() { 5 }")
f(new { val x = 5 } with E() { 5 })
println("")
}
}
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