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// RUN: %target-run-simple-swift -sil-verify-all | %FileCheck %s
// REQUIRES: executable_test
enum Bad: Error {
case err
case custom(String)
}
func erase<T>(_ val: T) -> Any {
return val as Any
}
class Klass {}
typealias MaybeString = Result<String, Error>
typealias MaybeKlass = Result<Klass, Error>
typealias MaybeInt = Result<Int, Error>
typealias MaybeNumbers = Result<[Int], Error>
////////
// NOTE: Do _not_ heed the warnings about implicit coercions to Any.
// That's an important part of this test's coverage!
////////
// -- throwing --
// CHECK: nil
print( try? MaybeString.failure(Bad.err).get() )
// CHECK: nil
print( try? MaybeKlass.failure(Bad.custom("doggo")).get() )
// CHECK: nil
print( try? MaybeInt.failure(Bad.err).get() )
// CHECK: nil
print( try? MaybeNumbers.failure(Bad.err).get() )
// CHECK: nil
print(erase( try? MaybeNumbers.failure(Bad.err).get() ))
// -- normal --
// CHECK: Optional("catto")
print( try? MaybeString.success("catto").get() )
// CHECK: Optional(main.Klass)
print( try? MaybeKlass.success(Klass()).get() )
// CHECK: Optional(3)
print( try? MaybeInt.success(3).get() )
// CHECK: Optional([4, 8, 15, 16, 23, 42])
print( try? MaybeNumbers.success([4, 8, 15, 16, 23, 42]).get() )
// CHECK: Optional([0, 1, 1, 2, 3])
print(erase( try? MaybeNumbers.success([0, 1, 1, 2, 3]).get() ))
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