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[stdlib] Propagate GeneratorType docs to models

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Swift SVN r22208
This commit is contained in:
Dave Abrahams
2014-09-23 09:47:26 +00:00
parent d4de1bf5e9
commit 76f9313088
15 changed files with 77 additions and 7 deletions
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7
stdlib/core/Algorithm.swift
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@@ -215,6 +215,7 @@ public func startsWith<
public struct EnumerateGenerator<
Base: GeneratorType
> : GeneratorType, SequenceType {
/// The type of element returned by `next()`.
public typealias Element = (index: Int, element: Base.Element)
var base: Base
var count: Int
@@ -225,8 +226,10 @@ public struct EnumerateGenerator<
count = 0
}
/// If all elements are exhausted, return `nil`. Otherwise, advance
/// to the next element and return it.
/// Advance to the next element and return it, or `nil` if no next
/// element exists.
///
/// Requires: no preceding call to `self.next()` has returned `nil`.
public mutating func next() -> Element? {
var b = base.next()
if b == nil { return .None }