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/*
This source file is part of the Swift.org open source project
Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
// Can't conform a protocol explicitly with certain where clause for now but it'd be resolved by SE-0143.
// ref: https://github.com/apple/swift-evolution/blob/master/proposals/0143-conditional-conformances.md
// MARK: CustomStringConvertible
extension KeyValuePairs where Key: CustomStringConvertible, Value: CustomStringConvertible {
/// A string that represents the contents of the dictionary literal.
public var description: String {
let lastCount = self.count - 1
var desc = "["
for (i, item) in self.enumerated() {
desc.append("\(item.key.description): \(item.value.description)")
desc.append(i == lastCount ? "]" : ", ")
}
return desc
}
}
// MARK: Equatable
extension KeyValuePairs where Key: Equatable, Value: Equatable {
public static func ==(lhs: KeyValuePairs<Key,Value>, rhs: KeyValuePairs<Key,Value>) -> Bool {
if lhs.count != rhs.count {
return false
}
for i in 0..<lhs.count {
if lhs[i].key != rhs[i].key || lhs[i].value != rhs[i].value {
return false
}
}
return true
}
}
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