Structureswift-nio 2.72.0NIOCore
TestSink
An AsyncSequence
backing a NIOAsyncChannelOutboundWriter
for testing purposes.
- iOS
- 13+
- macOS
- 10.15+
- tvOS
- 13+
- watchOS
- 6+
struct TestSink
Other members in extension
Type members
static func makeTestingWriter(
) -> (`Self`, TestSink) Creates a new
NIOAsyncChannelOutboundWriter
backed by aTestSink
. This is mostly useful for testing purposes where one wants to observe the written data.
Instance members
func finish(
) Finishes the writer.
func write(OutboundOut
) async throws Send a write into the
ChannelPipeline
and flush it right away.func write<Writes>(contentsOf: Writes
) async throws Send a sequence of writes into the
ChannelPipeline
and flush them right away.func write<Writes>(contentsOf: Writes
) async throws Send an asynchronous sequence of writes into the
ChannelPipeline
.
Citizens in NIOCore
Conformances
protocol AsyncSequence
A type that provides asynchronous, sequential, iterated access to its elements.
Types
Typealiases
Instance members
Instance features
func allSatisfy((Self.Element) async throws -> Bool
) async rethrows -> Bool Returns a Boolean value that indicates whether all elements produced by the asynchronous sequence satisfy the given predicate.
func collect(upTo: Int
) async throws -> ByteBuffer Accumulates an
AsyncSequence
ofByteBuffer
s into a singleByteBuffer
.func collect(upTo: Int, into: inout ByteBuffer
) async throws Accumulates an
AsyncSequence
ofByteBuffer
s into a singleaccumulationBuffer
.func compactMap<ElementOfResult>(@escaping (Self.Element) async -> ElementOfResult?
) -> AsyncCompactMapSequence<Self, ElementOfResult> Creates an asynchronous sequence that maps the given closure over the asynchronous sequence’s elements, omitting results that don’t return a value.
func compactMap<ElementOfResult>(@escaping (Self.Element) async throws -> ElementOfResult?
) -> AsyncThrowingCompactMapSequence<Self, ElementOfResult> Creates an asynchronous sequence that maps an error-throwing closure over the base sequence’s elements, omitting results that don’t return a value.
func contains(Self.Element
) async rethrows -> Bool Returns a Boolean value that indicates whether the asynchronous sequence contains the given element.
func contains(where: (Self.Element) async throws -> Bool
) async rethrows -> Bool Returns a Boolean value that indicates whether the asynchronous sequence contains an element that satisfies the given predicate.
func drop(while: @escaping (Self.Element) async -> Bool
) -> AsyncDropWhileSequence<Self> Omits elements from the base asynchronous sequence until a given closure returns false, after which it passes through all remaining elements.
func dropFirst(Int
) -> AsyncDropFirstSequence<Self> Omits a specified number of elements from the base asynchronous sequence, then passes through all remaining elements.
func filter(@escaping (Self.Element) async -> Bool
) -> AsyncFilterSequence<Self> Creates an asynchronous sequence that contains, in order, the elements of the base sequence that satisfy the given predicate.
func first(where: (Self.Element) async throws -> Bool
) async rethrows -> Self.Element? Returns the first element of the sequence that satisfies the given predicate.
func flatMap<SegmentOfResult>(@escaping (Self.Element) async throws -> SegmentOfResult
) -> AsyncThrowingFlatMapSequence<Self, SegmentOfResult> Creates an asynchronous sequence that concatenates the results of calling the given error-throwing transformation with each element of this sequence.
func flatMap<SegmentOfResult>(@escaping (Self.Element) async -> SegmentOfResult
) -> AsyncFlatMapSequence<Self, SegmentOfResult> Creates an asynchronous sequence that concatenates the results of calling the given transformation with each element of this sequence.
func map<Transformed>(@escaping (Self.Element) async -> Transformed
) -> AsyncMapSequence<Self, Transformed> Creates an asynchronous sequence that maps the given closure over the asynchronous sequence’s elements.
func map<Transformed>(@escaping (Self.Element) async throws -> Transformed
) -> AsyncThrowingMapSequence<Self, Transformed> Creates an asynchronous sequence that maps the given error-throwing closure over the asynchronous sequence’s elements.
func max(
) async rethrows -> Self.Element? Returns the maximum element in an asynchronous sequence of comparable elements.
func max(by: (Self.Element, Self.Element) async throws -> Bool
) async rethrows -> Self.Element? Returns the maximum element in the asynchronous sequence, using the given predicate as the comparison between elements.
func min(
) async rethrows -> Self.Element? Returns the minimum element in an asynchronous sequence of comparable elements.
func min(by: (Self.Element, Self.Element) async throws -> Bool
) async rethrows -> Self.Element? Returns the minimum element in the asynchronous sequence, using the given predicate as the comparison between elements.
func prefix(Int
) -> AsyncPrefixSequence<Self> Returns an asynchronous sequence, up to the specified maximum length, containing the initial elements of the base asynchronous sequence.
func prefix(while: @escaping (Self.Element) async -> Bool
) rethrows -> AsyncPrefixWhileSequence<Self> Returns an asynchronous sequence, containing the initial, consecutive elements of the base sequence that satisfy the given predicate.
func reduce<Result>(Result, (Result, Self.Element) async throws -> Result
) async rethrows -> Result Returns the result of combining the elements of the asynchronous sequence using the given closure.
func reduce<Result>(into: Result, (inout Result, Self.Element) async throws -> Void
) async rethrows -> Result Returns the result of combining the elements of the asynchronous sequence using the given closure, given a mutable initial value.
Citizens in NIOCore
where OutboundOut:Sendable
Conformances
protocol Sendable
A type whose values can safely be passed across concurrency domains by copying.