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// RUN: %target-typecheck-verify-swift
public func takeIntConst(_ a: _const Int) {}
public func takeStringConst(_ a: _const String) {}
public func takeDoubleConst(_ a: _const Double) {}
public func takeArrayConst(_ a: _const [String]) {}
public func takeDictConst(_ a: _const [Int: String]) {}
func main(_ i: Int, _ d: Double, _ s: String, arr: [String], dict: [Int: String]) {
takeIntConst(2)
takeDoubleConst(3.3)
takeStringConst("")
takeArrayConst([""])
takeDictConst([1: "", 2: "text"])
takeIntConst(i) // expected-error {{expect a compile-time constant literal}}
takeDoubleConst(d) // expected-error {{expect a compile-time constant literal}}
takeStringConst("\(d)") // expected-error {{expect a compile-time constant literal}}
takeStringConst(s) // expected-error {{expect a compile-time constant literal}}
takeArrayConst(arr) // expected-error {{expect a compile-time constant literal}}
takeArrayConst([s]) // expected-error {{expect a compile-time constant literal}}
takeArrayConst(["", s]) // expected-error {{expect a compile-time constant literal}}
takeDictConst([1: "", 2: s]) // expected-error {{expect a compile-time constant literal}}
takeDictConst([1: "", i: "text"]) // expected-error {{expect a compile-time constant literal}}
}
public struct Utils {
public func takeIntConst(_ a: _const Int) {}
public func takeStringConst(_ a: _const String) {}
public func takeDoubleConst(_ a: _const Double) {}
}
func main_member(_ u: Utils, _ i: Int, _ d: Double, _ s: String) {
u.takeIntConst(2)
u.takeDoubleConst(3.3)
u.takeStringConst("")
u.takeIntConst(i) // expected-error {{expect a compile-time constant literal}}
u.takeDoubleConst(d) // expected-error {{expect a compile-time constant literal}}
u.takeStringConst("\(d)") // expected-error {{expect a compile-time constant literal}}
u.takeStringConst(s) // expected-error {{expect a compile-time constant literal}}
}
protocol ConstFan {
static _const var v: String { get } // expected-note {{protocol requires property 'v' with type 'String'; add a stub for conformance}}
}
class ConstFanClass1: ConstFan { // expected-error {{type 'ConstFanClass1' does not conform to protocol 'ConstFan'}}
static let v: String = "" // expected-note {{candidate operates as non-const, not const as required}}
}
class ConstFanClassCorrect: ConstFan {
static _const let v: String = ""
}
class ConstFanClassWrong1: ConstFan {
static _const let v: String // expected-error {{_const let should be initialized with a compile-time literal}}
// expected-error@-1 {{'static let' declaration requires an initializer expression or an explicitly stated getter}}
// expected-note@-2 {{add an initializer to silence this error}}
}
class ConstFanClassWrong2: ConstFan {
static _const let v: String = "\(v)" // expected-error {{_const let should be initialized with a compile-time literal}}
}
class ConstFanClassWrong3: ConstFan {
static _const var v: String = "" // expected-error {{let is required for a _const variable declaration}}
}
class ConstFanClassWrong4: ConstFan {
static func giveMeString() -> String { return "" }
static _const let v: String = giveMeString() // expected-error {{_const let should be initialized with a compile-time literal}}
}
_const let globalConst = 3
class ConstFanClassWrong5 {
func foo() -> Int {
_const let localConst = 3
return globalConst + localConst
}
}
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