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// RUN: %target-typecheck-verify-swift -target %target-swift-5.1-abi-triple
// REQUIRES: concurrency
func test() async {
async let x = 1 // okay
_ = await x
}
struct X {
async let x = 1 // expected-error{{'async let' can only be used on local declarations}}
}
func testAsyncFunc() async {
async let (z1, z2) = (2, 3)
async let (_, _) = (2, 3)
async let x2 = 1
async var x = 17 // expected-error{{'async' can only be used with 'let' declarations}}{{9-12=let}}
async let (_, _) = (1, 2), y2 = 7 // expected-error{{'async let' requires at least one named variable}}
async let y: Int // expected-error{{'async let' binding requires an initializer expression}}
_ = await x
_ = y
_ = await z1
_ = await z2
_ = await x2
await x = 1
_ = y2
}
// Cooking example
func chopVegetables() async throws -> [String] { [] }
func marinateMeat() async -> String { "MEAT" }
func cook() async throws {
async let veggies = try await chopVegetables(), meat = await marinateMeat()
_ = try await veggies
_ = await meat
}
func testInterpolation() async {
async let y = "\(12345)"
_ = await y
}
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