mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
d8176a7e89
Syntactically verify that initializer expressions of '@const' variables and argument expressions to '@const' parameters consist strictly of syntactically-verifiable set of basic values and operations
17 lines
886 B
Swift
17 lines
886 B
Swift
// Constant globals rejected for not being constant values
|
|
// REQUIRES: swift_feature_CompileTimeValues
|
|
// REQUIRES: swift_feature_CompileTimeValuesPreview
|
|
// RUN: %target-swift-frontend -emit-ir -primary-file %s -parse-as-library -verify -enable-experimental-feature CompileTimeValues -enable-experimental-feature CompileTimeValuesPreview
|
|
|
|
@const let a: Bool = Bool.random()
|
|
// expected-error@-1 {{'@const' value should be initialized with a compile-time value}}
|
|
// expected-error@-2 {{global variable must be a compile-time constant}} // Remove this once we common out the diagnostics
|
|
|
|
func foo() -> Int {
|
|
return 42 * Int.random(in: 0 ..< 10)
|
|
}
|
|
|
|
@const let b: Int = foo()
|
|
// expected-error@-1 {{'@const' value should be initialized with a compile-time value}}
|
|
// expected-error@-2 {{global variable must be a compile-time constant}} // Remove this once we common out the diagnostics
|