1. allow embed type declaration in protocol
e.g.:
protocol URLProvider {
fun url() throws -> URL
}
extension URLProvider {
enum Error: Swift.Error {
invalidBaseURL
invalidPath
invalidQuery
invalidFragment
}
}
func parseURL() throws -> URL {
throw URLProvider.Error.invalidBaseURL
}
2. allow throw in property getter/setter
e.g.:
struct myURLProvider: URLProvider {
var url: throws -> URL {
try URL(baseURL: baseURL, path: path, query: query, fragment: fragment)
}
}
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