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14d92ff7a1
We can use swift_name to import a static factory function as a Swift initializer. This was tested with foreign reference types but not with value types. This PR adds a test case for the latter. rdar://117531428
92 lines
2.6 KiB
Swift
92 lines
2.6 KiB
Swift
// RUN: %target-run-simple-swift(-I %S/Inputs/ -Xfrontend -enable-experimental-cxx-interop -Xfrontend -disable-availability-checking)
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//
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// REQUIRES: executable_test
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import StdlibUnittest
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import Constructors
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var CxxConstructorTestSuite = TestSuite("CxxConstructors")
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CxxConstructorTestSuite.test("ExplicitDefaultConstructor") {
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let instance = ExplicitDefaultConstructor()
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expectEqual(42, instance.x)
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}
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CxxConstructorTestSuite.test("ImplicitDefaultConstructor") {
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let instance = ImplicitDefaultConstructor()
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expectEqual(42, instance.x)
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}
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CxxConstructorTestSuite.test("DefaultedDefaultConstructor") {
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let instance = DefaultedDefaultConstructor()
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expectEqual(42, instance.x)
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}
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CxxConstructorTestSuite.test("MemberOfClassType") {
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let instance = MemberOfClassType()
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expectEqual(42, instance.member.x)
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}
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CxxConstructorTestSuite.test("ConstructorWithParam") {
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let instance = ConstructorWithParam(2)
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expectEqual(44, instance.x)
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}
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CxxConstructorTestSuite.test("TemplatedConstructor") {
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let arg = ArgType(i: 2)
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let instance = TemplatedConstructor(arg)
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expectEqual(2, instance.value.i)
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}
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CxxConstructorTestSuite.test("implicit default ctor") {
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// Make sure that fields of C++ structs are zeroed out.
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let instance1 = ConstructorWithParam()
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expectEqual(0, instance1.x)
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let instance2 = IntWrapper()
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expectEqual(0, instance2.x)
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// CopyAndMoveConstructor is not default-initializable in C++, however, Swift
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// generates an implicit deprecated default constructor for C++ structs for
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// compatibility with C. This constructor will zero out the entire backing
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// memory of the struct, including fields that have an init expression.
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// See `SwiftDeclSynthesizer::createDefaultConstructor`.
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let instance3 = CopyAndMoveConstructor()
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expectEqual(0, instance3.value)
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expectNil(instance3.ptr)
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}
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CxxConstructorTestSuite.test("MoveConstructorWithOneParamWithDefaultArg") {
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let instance1 = MoveConstructorWithOneParameterWithDefaultArg(5)
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let instance2 = instance1
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let instance3 = MoveConstructorWithOneParameterWithDefaultArg(5)
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expectTrue(instance2.value + instance3.value >= 10)
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}
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CxxConstructorTestSuite.test("ImportStaticFactoryAsInitializer") {
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let x = ImportWithCtor()
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expectEqual(x.param1, 0)
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expectEqual(x.param2, 0)
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let y = x
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let z = ImportWithCtor(1)
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expectEqual(z.param1, 1)
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expectEqual(z.param2, 0)
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let z2 = ImportWithCtor(2, 3)
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expectEqual(z2.param1, 2)
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expectEqual(z2.param2, 3)
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let z3 = ImportWithCtor(2, 3, 4)
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expectEqual(z3.param1, 2)
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expectEqual(z3.param2, 3)
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let v = Value(x: 2)
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expectEqual(v.getX(), 2)
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}
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runAllTests()
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