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Don’t switch in uncons.

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This commit is contained in:
Rob Rix 2015-09-17 14:23:51 -04:00
parent ad835e6c9a
commit d62d4a33bb
1 changed files with 0 additions and 6 deletions
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6
prototype/Doubt/Stream.swift
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@ -24,12 +24,6 @@ public enum Stream<A>: NilLiteralConvertible, SequenceType {
} }
public var uncons: (first: A, rest: Memo<Stream>)? { public var uncons: (first: A, rest: Memo<Stream>)? {
switch self {
case let .Cons(first, rest):
return (first, rest.value)
default:
return nil
}
return analysis(ifCons: { $0 }, ifNil: { nil }) return analysis(ifCons: { $0 }, ifNil: { nil })
} }