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Merged
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Jul 9, 2021
Merged

Allow AsyncSequence operators to be inlined in their construction #38310

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6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncCompactMapSequence.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -56,14 +56,15 @@ extension AsyncSequence {
/// An asynchronous sequence that maps a given closure over the asynchronous
/// sequence’s elements, omitting results that don't return a value.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncCompactMapSequence<Base: AsyncSequence, ElementOfResult> {
@usableFromInline
let base: Base

@usableFromInline
let transform: (Base.Element) async -> ElementOfResult?

@usableFromInline
@inlinable
init(
_ base: Base,
transform: @escaping (Base.Element) async -> ElementOfResult?
Expand All @@ -84,6 +85,7 @@ extension AsyncCompactMapSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the compact map sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
public typealias Element = ElementOfResult

Expand All @@ -93,7 +95,7 @@ extension AsyncCompactMapSequence: AsyncSequence {
@usableFromInline
let transform: (Base.Element) async -> ElementOfResult?

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
transform: @escaping (Base.Element) async -> ElementOfResult?
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncDropFirstSequence.swift
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Expand Up @@ -49,14 +49,15 @@ extension AsyncSequence {
/// An asynchronous sequence which omits a specified number of elements from the
/// base asynchronous sequence, then passes through all remaining elements.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncDropFirstSequence<Base: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let count: Int

@usableFromInline
@inlinable
init(_ base: Base, dropping count: Int) {
self.base = base
self.count = count
Expand All @@ -74,14 +75,15 @@ extension AsyncDropFirstSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the drop-first sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator

@usableFromInline
var count: Int

@usableFromInline
@inlinable
init(_ baseIterator: Base.AsyncIterator, count: Int) {
self.baseIterator = baseIterator
self.count = count
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncDropWhileSequence.swift
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Expand Up @@ -53,14 +53,15 @@ extension AsyncSequence {
/// given closure returns false, after which it passes through all remaining
/// elements.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncDropWhileSequence<Base: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let predicate: (Base.Element) async -> Bool

@usableFromInline
@inlinable
init(
_ base: Base,
predicate: @escaping (Base.Element) async -> Bool
Expand All @@ -82,14 +83,15 @@ extension AsyncDropWhileSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the drop-while sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator

@usableFromInline
var predicate: ((Base.Element) async -> Bool)?

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
predicate: @escaping (Base.Element) async -> Bool
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncFilterSequence.swift
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Expand Up @@ -44,14 +44,15 @@ extension AsyncSequence {
/// An asynchronous sequence that contains, in order, the elements of
/// the base sequence that satisfy a given predicate.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncFilterSequence<Base: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let isIncluded: (Element) async -> Bool

@usableFromInline
@inlinable
init(
_ base: Base,
isIncluded: @escaping (Base.Element) async -> Bool
Expand All @@ -72,14 +73,15 @@ extension AsyncFilterSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the filter sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator

@usableFromInline
let isIncluded: (Base.Element) async -> Bool

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
isIncluded: @escaping (Base.Element) async -> Bool
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncFlatMapSequence.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -50,14 +50,15 @@ extension AsyncSequence {
/// An asynchronous sequence that concatenates the results of calling a given
/// transformation with each element of this sequence.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncFlatMapSequence<Base: AsyncSequence, SegmentOfResult: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let transform: (Base.Element) async -> SegmentOfResult

@usableFromInline
@inlinable
init(
_ base: Base,
transform: @escaping (Base.Element) async -> SegmentOfResult
Expand All @@ -78,6 +79,7 @@ extension AsyncFlatMapSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the flat map sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator
Expand All @@ -91,7 +93,7 @@ extension AsyncFlatMapSequence: AsyncSequence {
@usableFromInline
var finished = false

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
transform: @escaping (Base.Element) async -> SegmentOfResult
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncMapSequence.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -54,14 +54,15 @@ extension AsyncSequence {
/// An asynchronous sequence that maps the given closure over the asynchronous
/// sequence’s elements.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncMapSequence<Base: AsyncSequence, Transformed> {
@usableFromInline
let base: Base

@usableFromInline
let transform: (Base.Element) async -> Transformed

@usableFromInline
@inlinable
init(
_ base: Base,
transform: @escaping (Base.Element) async -> Transformed
Expand All @@ -82,14 +83,15 @@ extension AsyncMapSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the map sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator

@usableFromInline
let transform: (Base.Element) async -> Transformed

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
transform: @escaping (Base.Element) async -> Transformed
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncPrefixSequence.swift
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Expand Up @@ -49,14 +49,15 @@ extension AsyncSequence {
/// An asynchronous sequence, up to a specified maximum length,
/// containing the initial elements of a base asynchronous sequence.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncPrefixSequence<Base: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let count: Int

@usableFromInline
@inlinable
init(_ base: Base, count: Int) {
self.base = base
self.count = count
Expand All @@ -74,14 +75,15 @@ extension AsyncPrefixSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the prefix sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator

@usableFromInline
var remaining: Int

@usableFromInline
@inlinable
init(_ baseIterator: Base.AsyncIterator, count: Int) {
self.baseIterator = baseIterator
self.remaining = count
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncPrefixWhileSequence.swift
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Expand Up @@ -49,14 +49,15 @@ extension AsyncSequence {
/// An asynchronous sequence, containing the initial, consecutive
/// elements of the base sequence that satisfy a given predicate.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncPrefixWhileSequence<Base: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let predicate: (Base.Element) async -> Bool

@usableFromInline
@inlinable
init(
_ base: Base,
predicate: @escaping (Base.Element) async -> Bool
Expand All @@ -77,6 +78,7 @@ extension AsyncPrefixWhileSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the prefix-while sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var predicateHasFailed = false
Expand All @@ -87,7 +89,7 @@ extension AsyncPrefixWhileSequence: AsyncSequence {
@usableFromInline
let predicate: (Base.Element) async -> Bool

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
predicate: @escaping (Base.Element) async -> Bool
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncThrowingCompactMapSequence.swift
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Expand Up @@ -68,14 +68,15 @@ extension AsyncSequence {
/// An asynchronous sequence that maps an error-throwing closure over the base
/// sequence’s elements, omitting results that don't return a value.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncThrowingCompactMapSequence<Base: AsyncSequence, ElementOfResult> {
@usableFromInline
let base: Base

@usableFromInline
let transform: (Base.Element) async throws -> ElementOfResult?

@usableFromInline
@inlinable
init(
_ base: Base,
transform: @escaping (Base.Element) async throws -> ElementOfResult?
Expand All @@ -96,6 +97,7 @@ extension AsyncThrowingCompactMapSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the compact map sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
public typealias Element = ElementOfResult

Expand All @@ -108,7 +110,7 @@ extension AsyncThrowingCompactMapSequence: AsyncSequence {
@usableFromInline
var finished = false

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
transform: @escaping (Base.Element) async throws -> ElementOfResult?
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncThrowingDropWhileSequence.swift
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Expand Up @@ -66,14 +66,15 @@ extension AsyncSequence {
/// given error-throwing closure returns false, after which it passes through
/// all remaining elements.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncThrowingDropWhileSequence<Base: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let predicate: (Base.Element) async throws -> Bool

@usableFromInline
@inlinable
init(
_ base: Base,
predicate: @escaping (Base.Element) async throws -> Bool
Expand All @@ -94,6 +95,7 @@ extension AsyncThrowingDropWhileSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the drop-while sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator
Expand All @@ -107,7 +109,7 @@ extension AsyncThrowingDropWhileSequence: AsyncSequence {
@usableFromInline
var doneDropping = false

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
predicate: @escaping (Base.Element) async throws -> Bool
Expand Down
6 changes: 4 additions & 2 deletions stdlib/public/Concurrency/AsyncThrowingFilterSequence.swift
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Expand Up @@ -56,14 +56,15 @@ extension AsyncSequence {
/// An asynchronous sequence that contains, in order, the elements of
/// the base sequence that satisfy the given error-throwing predicate.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncThrowingFilterSequence<Base: AsyncSequence> {
@usableFromInline
let base: Base

@usableFromInline
let isIncluded: (Element) async throws -> Bool

@usableFromInline
@inlinable
init(
_ base: Base,
isIncluded: @escaping (Base.Element) async throws -> Bool
Expand All @@ -84,6 +85,7 @@ extension AsyncThrowingFilterSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the filter sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator
Expand All @@ -94,7 +96,7 @@ extension AsyncThrowingFilterSequence: AsyncSequence {
@usableFromInline
var finished = false

@usableFromInline
@inlinable
init(
_ baseIterator: Base.AsyncIterator,
isIncluded: @escaping (Base.Element) async throws -> Bool
Expand Down
2 changes: 2 additions & 0 deletions stdlib/public/Concurrency/AsyncThrowingFlatMapSequence.swift
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Expand Up @@ -64,6 +64,7 @@ extension AsyncSequence {
/// An asynchronous sequence that concatenates the results of calling a given
/// error-throwing transformation with each element of this sequence.
@available(SwiftStdlib 5.5, *)
@frozen
public struct AsyncThrowingFlatMapSequence<Base: AsyncSequence, SegmentOfResult: AsyncSequence> {
@usableFromInline
let base: Base
Expand Down Expand Up @@ -92,6 +93,7 @@ extension AsyncThrowingFlatMapSequence: AsyncSequence {
public typealias AsyncIterator = Iterator

/// The iterator that produces elements of the flat map sequence.
@frozen
public struct Iterator: AsyncIteratorProtocol {
@usableFromInline
var baseIterator: Base.AsyncIterator
Expand Down
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