Created
February 6, 2014 10:36
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object ImplicitParams { | |
trait C[A] | |
} |
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object ModuleA { | |
import ImplicitParams._ | |
import ModuleB._ | |
def foo[A](a: A)(implicit c: C[A]) = bar(a) | |
} |
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object ModuleB { | |
import ImplicitParams._ | |
def bar[A](a: A)(implicit c: C[A]): C[A] = c | |
} |
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ここで、
bar
のimplicitな引数c
の正確な型がModuleB.scala
のコンパイル時にわからないことを持って「動的ディスパッチ」と言っていいかどうか。これって単に多相関数の呼び出しがネストしたときの一般的な話では?というのが自分の見解。