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laevandus/PropertyWrapper.swift

Created August 14, 2019 12:37
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PropertyWrapper.swift
struct Contact {
var fullName: String
@EmailValidated var email: String?
}
var contact = Contact(fullName: "Toomas")
contact.email = "invalidemail"
print(contact.email as Any) // nil
contact.email = " test toomas@email.zz"
print(contact.email as Any) // nil
contact.email = "toomas@email.zz"
print(contact.email as Any) // Optional("toomas@email.zz")
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