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// RUN: %target-swift-emit-silgen -module-name default_arguments_generic -swift-version 4 %s | %FileCheck %s
func foo<T: ExpressibleByIntegerLiteral>(_: T.Type, x: T = 0) { }
struct Zim<T: ExpressibleByIntegerLiteral> {
init(x: T = 0) { }
init<U: ExpressibleByFloatLiteral>(_ x: T = 0, y: U = 0.5) { }
static func zim(x: T = 0) { }
static func zang<U: ExpressibleByFloatLiteral>(_: U.Type, _ x: T = 0, y: U = 0.5) { }
}
// CHECK-LABEL: sil hidden [ossa] @$s25default_arguments_generic3baryyF : $@convention(thin) () -> () {
func bar() {
// CHECK: [[FOO_DFLT:%.*]] = function_ref @$s25default_arguments_generic3foo
// CHECK: apply [[FOO_DFLT]]<Int>
foo(Int.self)
// CHECK: [[ZIM_DFLT:%.*]] = function_ref @$s25default_arguments_generic3ZimV3zim
// CHECK: apply [[ZIM_DFLT]]<Int>
Zim<Int>.zim()
// CHECK: [[ZANG_DFLT_0:%.*]] = function_ref @$s25default_arguments_generic3ZimV4zang{{.*}}A0_
// CHECK: apply [[ZANG_DFLT_0]]<Int, Double>
// CHECK: [[ZANG_DFLT_1:%.*]] = function_ref @$s25default_arguments_generic3ZimV4zang{{.*}}A1_
// CHECK: apply [[ZANG_DFLT_1]]<Int, Double>
Zim<Int>.zang(Double.self)
// CHECK: [[ZANG_DFLT_1:%.*]] = function_ref @$s25default_arguments_generic3ZimV4zang{{.*}}A1_
// CHECK: apply [[ZANG_DFLT_1]]<Int, Double>
Zim<Int>.zang(Double.self, 22)
}
protocol Initializable {
init()
}
struct Generic<T: Initializable> {
init(_ value: T = T()) {}
}
struct InitializableImpl: Initializable {
init() {}
}
// CHECK-LABEL: sil hidden [ossa] @$s25default_arguments_generic17testInitializableyyF
func testInitializable() {
// Previously the metatype construction crashed in the type checker
// and the ".init" form crashed in SILGen. Test both forms.
// CHECK: function_ref @$s25default_arguments_generic7GenericVyACyxGxcfcfA_ : $@convention(thin) <τ_0_0 where τ_0_0 : Initializable> () -> @out τ_0_0
// CHECK: [[INIT:%.+]] = function_ref @$s25default_arguments_generic7GenericVyACyxGxcfC
// CHECK: apply [[INIT]]<InitializableImpl>({{%.+}}, {{%.+}}) : $@convention(method) <τ_0_0 where τ_0_0 : Initializable> (@in τ_0_0, @thin Generic<τ_0_0>.Type) -> Generic<τ_0_0>
_ = Generic<InitializableImpl>()
// CHECK: function_ref @$s25default_arguments_generic7GenericVyACyxGxcfcfA_ : $@convention(thin) <τ_0_0 where τ_0_0 : Initializable> () -> @out τ_0_0
// CHECK: [[INIT:%.+]] = function_ref @$s25default_arguments_generic7GenericVyACyxGxcfC
// CHECK: apply [[INIT]]<InitializableImpl>({{%.+}}, {{%.+}}) : $@convention(method) <τ_0_0 where τ_0_0 : Initializable> (@in τ_0_0, @thin Generic<τ_0_0>.Type) -> Generic<τ_0_0>
_ = Generic<InitializableImpl>.init()
} // CHECK: end sil function '$s25default_arguments_generic17testInitializableyyF'
// Local generic functions with default arguments
// CHECK-LABEL: sil hidden [ossa] @$s25default_arguments_generic5outer1tyx_tlF : $@convention(thin) <T> (@in_guaranteed T) -> ()
func outer<T>(t: T) {
func inner1(x: Int = 0) {}
// CHECK: [[ARG_GENERATOR:%.*]] = function_ref @$s25default_arguments_generic5outer1tyx_tlF6inner1L_1xySi_tlFfA_ : $@convention(thin) () -> Int
// CHECK: [[ARG:%.*]] = apply [[ARG_GENERATOR]]() : $@convention(thin) () -> Int
_ = inner1()
func inner2(x: Int = 0) { _ = T.self }
// CHECK: [[ARG_GENERATOR:%.*]] = function_ref @$s25default_arguments_generic5outer1tyx_tlF6inner2L_1xySi_tlFfA_ : $@convention(thin) () -> Int
// CHECK: [[ARG:%.*]] = apply [[ARG_GENERATOR]]() : $@convention(thin) () -> Int
_ = inner2()
}
protocol StaticIntValue {
static var intValue: Int { get }
}
func f<T : StaticIntValue>(_: T) {
// CHECK-LABEL: sil private [ossa] @$s25default_arguments_generic1fyyxAA14StaticIntValueRzlF5innerL_1xySi_tAaCRzlFfA_ : $@convention(thin) <T where T : StaticIntValue> () -> Int
// CHECK-LABEL: sil private [ossa] @$s25default_arguments_generic1fyyxAA14StaticIntValueRzlF5innerL_1xySi_tAaCRzlF : $@convention(thin) <T where T : StaticIntValue> (Int) -> ()
func inner(x: Int = T.intValue) {}
// CHECK-LABEL: sil private [ossa] @$s25default_arguments_generic1fyyxAA14StaticIntValueRzlF5otherL_yyAaCRzlF : $@convention(thin) <T where T : StaticIntValue> () -> ()
func other() { inner() }
}
func g<T>(_: T) {
{ inner() }()
func inner() {
_ = T.self
}
}
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