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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
*/
import TSCBasic
/// Useful extensions to JSON to use in assert methods where
/// the type diagnostics is not that important.
public extension JSON {
var dictionary: [String: JSON]? {
if case let .dictionary(contents) = self {
return contents
}
return nil
}
var array: [JSON]? {
if case let .array(contents) = self {
return contents
}
return nil
}
var string: String? {
if case let .string(contents) = self {
return contents
}
return nil
}
var stringValue: String {
return string ?? ""
}
subscript(_ string: String) -> JSON? {
return dictionary?[string]
}
subscript(_ idx: Int) -> JSON? {
if let array = array {
guard idx >= 0 && array.count > idx else {
return nil
}
return array[idx]
}
return nil
}
}
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