From 21df70b5be1e0eff9dd000edf219dc0fa6416a1e Mon Sep 17 00:00:00 2001
From: Honza Dvorsky <jan.dvorsky@yahoo.com>
Date: Mon, 16 May 2016 21:49:33 +0100
Subject: [PATCH 1/3] Adding JSON type

---
 Sources/JSON.swift | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Sources/JSON.swift

diff --git a/Sources/JSON.swift b/Sources/JSON.swift
new file mode 100644
index 0000000..3a608b2
--- /dev/null
+++ b/Sources/JSON.swift
@@ -0,0 +1,15 @@
+
+public enum JSON {
+
+    public enum Number {
+        case integer(Int)
+        case double(Double)
+    }
+    
+    case object([String: JSON])
+    case array([JSON])
+    case number(JSON.Number)
+    case string(String)
+    case boolean(Bool)
+    case null
+}

From 952366a960e5a6b3a46f97b8aac23853d48bdb30 Mon Sep 17 00:00:00 2001
From: antonmes <antonmes@users.noreply.github.com>
Date: Thu, 19 May 2016 00:31:58 +0300
Subject: [PATCH 2/3] Add unsignedInteger

---
 Sources/JSON.swift | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Sources/JSON.swift b/Sources/JSON.swift
index 3a608b2..c9498c4 100644
--- a/Sources/JSON.swift
+++ b/Sources/JSON.swift
@@ -1,11 +1,9 @@
-
 public enum JSON {
-
     public enum Number {
         case integer(Int)
+        case unsignedInteger(UInt)
         case double(Double)
     }
-    
     case object([String: JSON])
     case array([JSON])
     case number(JSON.Number)

From bad69ed399aa5a6864ca2c8b04f359de1854e514 Mon Sep 17 00:00:00 2001
From: antonmes <antonmes@users.noreply.github.com>
Date: Thu, 19 May 2016 00:32:07 +0300
Subject: [PATCH 3/3] Add initializers

---
 Sources/JSON.swift | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/Sources/JSON.swift b/Sources/JSON.swift
index c9498c4..211a5ab 100644
--- a/Sources/JSON.swift
+++ b/Sources/JSON.swift
@@ -11,3 +11,40 @@ public enum JSON {
     case boolean(Bool)
     case null
 }
+
+//
+// TODO: refactor with
+// https://github.com/apple/swift-evolution/blob/master/proposals/0080-failable-numeric-initializers.md
+//
+
+extension Int {
+    public init?(_ number: JSON.Number) {
+        switch number {
+        case let .integer(value)                                         : self.init(value)
+        case let .unsignedInteger(value) where value <= UInt(Int.max)    : self.init(value)
+        case let .double(value)          where value <= Double(Int32.max): self.init(value)
+        default: return nil
+        }
+    }
+}
+
+extension UInt {
+    public init?(_ number: JSON.Number) {
+        switch number {
+        case let .integer(value)         where value > 0                  : self.init(value)
+        case let .unsignedInteger(value)                                  : self.init(value)
+        case let .double(value)          where value <= Double(UInt32.max): self.init(value)
+        default: return nil
+        }
+    }
+}
+
+extension Double {
+    public init(_ number: JSON.Number) {
+        switch number {
+        case let .integer(value)        : self.init(value)
+        case let .unsignedInteger(value): self.init(value)
+        case let .double(value)         : self.init(value)
+        }
+    }
+}