jonhull

import Foundation

///A Result type which indicates the success or failure of a task. Has a generic Value, and uses a Swift.Error for the failure case. Specialization of SpecificResult.
public typealias Result<T> = SpecificResult<T,Swift.Error>

///A Result type which indicates the success or failure of a task using an enum to hold the resulting (generic) value in the case of success or (generic) error in the case of failure.
public enum SpecificResult<Value,Error> {
    ///The task succeeded and returned this value
    case success(Value)
    ///The task failed with this error

jonhull

public final class Source<T>:SourceProtocol, ExpressibleByArrayLiteral,Collection {
    public typealias Element = T
    private let box:_sourceBoxBase<T>
    
    public init<P:SourceProtocol>(_ base:P) where P.Element == T {
        self.box = _sourceBox(base)
    }
    
    public init(_ constant:T) {
        self.box = _sourceBox(ConstantSource(constant))