Files
swift-mirror/test/Concurrency/Reflection/reflect_task.swift
2025-05-06 00:04:57 -07:00

105 lines
3.2 KiB
Swift

// RUN: %empty-directory(%t)
// RUN: %target-clang -x c %S/Inputs/reflect_task.c -o %t/reflect_task.c.o -c
// RUN: %target-build-swift -c -target %target-swift-5.1-abi-triple -parse-stdlib -parse-as-library -lswiftSwiftReflectionTest %s -o %t/reflect_task.swift.o -module-name reflect_task
// RUN: %target-build-swift %t/reflect_task.swift.o %t/reflect_task.c.o -o %t/reflect_task
// RUN: %target-codesign %t/reflect_task
// RUN: %target-run %target-swift-reflection-test %t/reflect_task | %FileCheck %s --dump-input=fail
// REQUIRES: reflection_test_support
// REQUIRES: executable_test
// REQUIRES: concurrency
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime
// UNSUPPORTED: asan
// REQUIRES: rdar150478597
import Swift
import _Concurrency
import SwiftReflectionTest
// We do not use swift_task_getCurrent directly since we also can get a
// declaration (if we get unlucky) from _Concurrency with a differing type. So
// we instead just compile a shim in a .c file that actually calls
// swift_task_getCurrent and avoid the collision.
@_silgen_name("getCurrentTaskShim")
func _getCurrentTaskShim() -> UInt
func add(_ a: UInt, _ b: UInt) async -> UInt {
if b == 0 {
reflect(asyncTask: _getCurrentTaskShim())
return a
} else {
return await add(a, b - 1) + 1
}
}
func sleepForever() async -> Int {
if #available(SwiftStdlib 5.7, *) {
try? await Task.sleep(for: .seconds(1_000_000_000))
return 42
} else {
fatalError("This test shouldn't be running against old stdlibs.")
}
}
func testNestedCallsTask() async {
reflectionLog(str: "testNestedCallsTask")
// CHECK: testNestedCallsTask
let n = await add(100, 100)
reflect(any: n)
// CHECK: Reflecting an async task.
// CHECK: Async task {{0x[0-9a-fA-F]*}}
// The actual number of chunks we'll get depends on internal implementation
// details that we don't want this test to depend on. We'll just make sure
// we get at least two, and ignore the details.
// CHECK: Slab pointer {{0x[0-9a-fA-F]*}}
// CHECK: Slab size {{[0-9]{2,}()}}
// CHECK: Chunk at {{0x[0-9a-fA-F]*}} length {{[1-9][0-9]*}} kind {{[0-9]*}}
// CHECK: Slab pointer {{0x[0-9a-fA-F]*}}
// CHECK: Slab size {{[0-9]{2,}()}}
// CHECK: Chunk at {{0x[0-9a-fA-F]*}} length {{[1-9[[0-9]*}} kind {{[0-9]*}}
}
func testOneAsyncLet() async {
reflectionLog(str: "testOneAsyncLet")
// CHECK: testOneAsyncLet
async let alet = sleepForever()
reflect(asyncTask: _getCurrentTaskShim())
// CHECK: Async task {{0x[0-9a-fA-F]*}}
// CHECK: children = {
// CHECK: Async task {{0x[0-9a-fA-F]*}}
// CHECK: }
}
func testMultipleAsyncLet() async {
reflectionLog(str: "testMultipleAsyncLet")
// CHECK: testMultipleAsyncLet
async let alet1 = sleepForever()
async let alet2 = sleepForever()
reflect(asyncTask: _getCurrentTaskShim())
// CHECK: Async task {{0x[0-9a-fA-F]*}}
// CHECK: children = {
// CHECK: Async task {{0x[0-9a-fA-F]*}}
// CHECK: Async task {{0x[0-9a-fA-F]*}}
// CHECK: }
}
@main struct Main {
static func main() async {
await testNestedCallsTask()
await testOneAsyncLet()
await testMultipleAsyncLet()
doneReflecting()
}
}
// CHECK: Done.