Y combinator: Difference between revisions
m
→{{header|Scala}}: added parentheses for clarity
(→{{header|Scala}}: add type annotation) |
m (→{{header|Scala}}: added parentheses for clarity) |
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Line 4,461:
<lang scala>
def Y[A, B](f: (A => B) => (A => B)): A => B = {
case class W(wf: W => (A => B)) {
def apply(w: W): A => B = wf(w)
}
val g: W => (A => B) = w => f(w(w))(_)
g(W(g))
}
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