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5c1b20d2bc
This dynamic library contains a copy of the standard library's exported entry points for the Span and RawSpan types. This will allow backward deployment of code that uses those new types.
79 lines
2.1 KiB
Swift
79 lines
2.1 KiB
Swift
//===--- FakeStdlib.swift -------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2025 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// A handful of standard library stubs to allow Span.swift and RawSpan.swift
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// to be compiled as part of the compatibility shim.
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//
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//===----------------------------------------------------------------------===//
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import Swift
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@_alwaysEmitIntoClient @_transparent
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internal func _precondition(
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_ condition: @autoclosure () -> Bool, _ message: StaticString = StaticString(),
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file: StaticString = #file, line: UInt = #line
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) {
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fatalError()
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}
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@_alwaysEmitIntoClient @_transparent
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internal func _internalInvariantFailure(
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_ message: StaticString = StaticString(),
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file: StaticString = #file, line: UInt = #line
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) -> Never {
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fatalError()
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}
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@unsafe
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@_unsafeNonescapableResult
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@_alwaysEmitIntoClient
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@_transparent
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@lifetime(borrow source)
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internal func _overrideLifetime<
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T: ~Copyable & ~Escapable, U: ~Copyable & ~Escapable
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>(
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_ dependent: consuming T, borrowing source: borrowing U
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) -> T {
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dependent
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}
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@unsafe
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@_unsafeNonescapableResult
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@_alwaysEmitIntoClient
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@_transparent
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@lifetime(copy source)
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internal func _overrideLifetime<
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T: ~Copyable & ~Escapable, U: ~Copyable & ~Escapable
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>(
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_ dependent: consuming T, copying source: borrowing U
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) -> T {
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dependent
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}
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extension Range {
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@_alwaysEmitIntoClient
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internal init(_uncheckedBounds bounds: (lower: Bound, upper: Bound)) {
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self.init(uncheckedBounds: bounds)
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}
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}
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extension Optional {
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@_alwaysEmitIntoClient
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internal var _unsafelyUnwrappedUnchecked: Wrapped {
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get {
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if let x = self {
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return x
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}
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_internalInvariantFailure("_unsafelyUnwrappedUnchecked of nil optional")
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}
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}
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} |