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[noescape by default] Proliferate @escaping

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Adds an explicit @escaping throughout the standard library, validation
test suite, and tests. This will be necessary as soon as noescape is
the default for closure parameters.
This commit is contained in:
Michael Ilseman
2016-07-28 20:28:26 -07:00
parent b4b31908a6
commit ccda8f33d1
27 changed files with 153 additions and 152 deletions
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6
stdlib/public/core/UnfoldSequence.swift
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@@ -40,7 +40,7 @@
/// value returned by passing the previous element to `next`.
///
/// - SeeAlso: `sequence(state:next:)`
public func sequence<T>(first: T, next: (T) -> T?) -> UnfoldFirstSequence<T> {
public func sequence<T>(first: T, next: @escaping (T) -> T?) -> UnfoldFirstSequence<T> {
// The trivial implementation where the state is the next value to return
// has the downside of being unnecessarily eager (it evaluates `next` one
// step in advance). We solve this by using a boolean value to disambiguate
@@ -86,7 +86,7 @@ public func sequence<T>(first: T, next: (T) -> T?) -> UnfoldFirstSequence<T> {
/// - Returns: A sequence that yields each successive value from `next`.
///
/// - SeeAlso: `sequence(first:next:)`
public func sequence<T, State>(state: State, next: (inout State) -> T?)
public func sequence<T, State>(state: State, next: @escaping (inout State) -> T?)
-> UnfoldSequence<T, State> {
return UnfoldSequence(_state: state, _next: next)
}
@@ -115,7 +115,7 @@ public struct UnfoldSequence<Element, State> : Sequence, IteratorProtocol {
}
}
internal init(_state: State, _next: (inout State) -> Element?) {
internal init(_state: State, _next: @escaping (inout State) -> Element?) {
self._state = _state
self._next = _next
}