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// RUN: %empty-directory(%t)
// RUN: %target-build-swift -parse-as-library -Xfrontend -disable-availability-checking -g %s -module-name main -o %t/main
// RUN: %target-codesign %t/main
// RUN: %target-run %t/main | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: concurrency
// REQUIRES: concurrency_runtime
// UNSUPPORTED: back_deployment_runtime
struct E : Error {}
func asyncCanThrowDoesThrow() async throws -> Int {
throw E()
}
func asyncCanThrowDoesntThrow() async throws -> Int {
return 0
}
func syncCanThrowDoesThrow() throws -> Int {
throw E()
}
func syncCanThrowDoesntThrow() throws -> Int {
return 0
}
func asyncCanThrowDoesThrowRecursive(_ index: Int) async throws -> Int {
if index > 0 {
return try await asyncCanThrowDoesThrowRecursive(index - 1)
} else {
return try await asyncCanThrowDoesThrow()
}
}
func asyncCanThrowDoesntThrowRecursive(_ index: Int) async throws -> Int {
if index > 0 {
return try await asyncCanThrowDoesntThrowRecursive(index - 1)
} else {
return try await asyncCanThrowDoesntThrow()
}
}
func syncCanThrowDoesThrowRecursive(_ index: Int) async throws -> Int {
if index > 0 {
return try await syncCanThrowDoesThrowRecursive(index - 1)
} else {
return try syncCanThrowDoesThrow()
}
}
func syncCanThrowDoesntThrowRecursive(_ index: Int) async throws -> Int {
if index > 0 {
return try await syncCanThrowDoesntThrowRecursive(index - 1)
} else {
return try syncCanThrowDoesntThrow()
}
}
func test<T>(_ work: () async throws -> T) async {
do {
let value = try await work()
print(value)
}
catch let error {
print(error)
}
}
// CHECK: E()
// CHECK: 0
// CHECK: E()
// CHECK: 0
func testRecursion() async {
await test { try await asyncCanThrowDoesThrowRecursive(10) }
await test { try await asyncCanThrowDoesntThrowRecursive(10) }
await test { try await syncCanThrowDoesThrowRecursive(10) }
await test { try await syncCanThrowDoesntThrowRecursive(10) }
}
func testAsyncDoesThrowThenSyncDoesThrow() async throws -> (Int, Int) {
let async = try await asyncCanThrowDoesThrow()
let sync = try syncCanThrowDoesThrow()
return (async, sync)
}
func testAsyncDoesThrowThenSyncDoesntThrow() async throws -> (Int, Int) {
let async = try await asyncCanThrowDoesThrow()
let sync = try syncCanThrowDoesntThrow()
return (async, sync)
}
func testAsyncDoesntThrowThenSyncDoesThrow() async throws -> (Int, Int) {
let async = try await asyncCanThrowDoesntThrow()
let sync = try syncCanThrowDoesThrow()
return (async, sync)
}
func testAsyncDoesntThrowThenSyncDoesntThrow() async throws -> (Int, Int) {
let async = try await asyncCanThrowDoesntThrow()
let sync = try syncCanThrowDoesntThrow()
return (async, sync)
}
func testSyncDoesThrowThenAsyncDoesThrow() async throws -> (Int, Int) {
let sync = try syncCanThrowDoesThrow()
let async = try await asyncCanThrowDoesThrow()
return (sync, async)
}
func testSyncDoesThrowThenAsyncDoesntThrow() async throws -> (Int, Int) {
let sync = try syncCanThrowDoesThrow()
let async = try await asyncCanThrowDoesntThrow()
return (sync, async)
}
func testSyncDoesntThrowThenAsyncDoesThrow() async throws -> (Int, Int) {
let sync = try syncCanThrowDoesntThrow()
let async = try await asyncCanThrowDoesThrow()
return (sync, async)
}
func testSyncDoesntThrowThenAsyncDoesntThrow() async throws -> (Int, Int) {
let sync = try syncCanThrowDoesntThrow()
let async = try await asyncCanThrowDoesntThrow()
return (sync, async)
}
public enum MyError : Error {
case a
}
// We used to crash on this.
public func throwLarge() async throws -> (Int, Int, Int, Int, Int, Int, Int, Int) {
throw MyError.a
}
// CHECK: E()
// CHECK: E()
// CHECK: E()
// CHECK: (0, 0)
// CHECK: E()
// CHECK: E()
// CHECK: E()
// CHECK: (0, 0)
func testMixture() async {
await test { try await testAsyncDoesThrowThenSyncDoesThrow() }
await test { try await testAsyncDoesThrowThenSyncDoesntThrow() }
await test { try await testAsyncDoesntThrowThenSyncDoesThrow() }
await test { try await testAsyncDoesntThrowThenSyncDoesntThrow() }
await test { try await testSyncDoesThrowThenAsyncDoesThrow() }
await test { try await testSyncDoesThrowThenAsyncDoesntThrow() }
await test { try await testSyncDoesntThrowThenAsyncDoesThrow() }
await test { try await testSyncDoesntThrowThenAsyncDoesntThrow() }
}
@main struct Main {
static func main() async {
await testRecursion()
await testMixture()
}
}
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