mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
2aaa4846e8
This case was previously ignoring the DestroyOnFailure flag, so we had a leak if a cast to an existential metatype failed for certain types (tuples, structs, etc).
50 lines
1.4 KiB
Swift
50 lines
1.4 KiB
Swift
// Casts.swift - Tests for conversion between types.
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See http://swift.org/LICENSE.txt for license information
|
|
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
// -----------------------------------------------------------------------------
|
|
///
|
|
/// Contains tests for conversions between types which shouldn't trap.
|
|
///
|
|
// -----------------------------------------------------------------------------
|
|
// RUN: %target-run-stdlib-swift
|
|
// REQUIRES: executable_test
|
|
|
|
import StdlibUnittest
|
|
|
|
let CastsTests = TestSuite("Casts")
|
|
|
|
// Test for SR-426: missing release for some types after failed conversion
|
|
class DeinitTester {
|
|
private let onDeinit: () -> ()
|
|
|
|
init(onDeinit: () -> ()) {
|
|
self.onDeinit = onDeinit
|
|
}
|
|
deinit {
|
|
onDeinit()
|
|
}
|
|
}
|
|
|
|
func testFailedTupleCast(onDeinit: () -> ()) {
|
|
// This function is to establish a scope for t to
|
|
// be deallocated at the end of.
|
|
let t: Any = (1, DeinitTester(onDeinit: onDeinit))
|
|
_ = t is Any.Type
|
|
}
|
|
|
|
CastsTests.test("No leak for failed tuple casts") {
|
|
var deinitRan = false
|
|
testFailedTupleCast {
|
|
deinitRan = true
|
|
}
|
|
expectTrue(deinitRan)
|
|
}
|
|
|
|
runAllTests() |