Move bit() function in source files to be consistent with protocol methods order

Author: tsolomko

Sources/BitReader.swift

@@ -11,16 +11,17 @@ public protocol BitReader: class {
 
     init(data: Data)
 
+    func bit() -> UInt8
+
     func bits(count: Int) -> [UInt8]
 
     // TODO: Rename?
     func intFromBits(count: Int) -> Int
 
-    func bit() -> UInt8
-
     // TODO: Describe, that it doesn't check for the end.
     func align()
 
+    // MARK: ByteReader's methods.
     // TODO: Describe preconditions.
 
     func byte() -> UInt8

Sources/LsbBitReader.swift

@@ -13,6 +13,19 @@ public final class LsbBitReader: ByteReader, BitReader {
         return self.bitMask == 1
     }
 
+    public func bit() -> UInt8 {
+        let bit: UInt8 = self.data[self.offset] & self.bitMask > 0 ? 1 : 0
+
+        if self.bitMask == 128 {
+            self.offset += 1
+            self.bitMask = 1
+        } else {
+            self.bitMask <<= 1
+        }
+
+        return bit
+    }
+
     public func intFromBits(count: Int) -> Int {
         guard count > 0 else {
             return 0
@@ -36,19 +49,6 @@ public final class LsbBitReader: ByteReader, BitReader {
         return result
     }
 
-    public func bit() -> UInt8 {
-        let bit: UInt8 = self.data[self.offset] & self.bitMask > 0 ? 1 : 0
-
-        if self.bitMask == 128 {
-            self.offset += 1
-            self.bitMask = 1
-        } else {
-            self.bitMask <<= 1
-        }
-
-        return bit
-    }
-
     public func align() {
         guard self.bitMask != 1 else {
             return
@@ -57,6 +57,8 @@ public final class LsbBitReader: ByteReader, BitReader {
         self.offset += 1
     }
 
+    // MARK: ByteReader's methods.
+
     public override func byte() -> UInt8 {
         precondition(isAligned, "BitReader is not aligned.")
         return super.byte()

Sources/MsbBitReader.swift

@@ -13,6 +13,19 @@ public final class MsbBitReader: ByteReader, BitReader {
         return self.bitMask == 128
     }
 
+    public func bit() -> UInt8 {
+        let bit: UInt8 = self.data[self.offset] & self.bitMask > 0 ? 1 : 0
+
+        if self.bitMask == 1 {
+            self.offset += 1
+            self.bitMask = 128
+        } else {
+            self.bitMask >>= 1
+        }
+
+        return bit
+    }
+
     public func intFromBits(count: Int) -> Int {
         guard count > 0 else {
             return 0
@@ -36,19 +49,6 @@ public final class MsbBitReader: ByteReader, BitReader {
         return result
     }
 
-    public func bit() -> UInt8 {
-        let bit: UInt8 = self.data[self.offset] & self.bitMask > 0 ? 1 : 0
-
-        if self.bitMask == 1 {
-            self.offset += 1
-            self.bitMask = 128
-        } else {
-            self.bitMask >>= 1
-        }
-
-        return bit
-    }
-
     public func align() {
         guard self.bitMask != 128 else {
             return
@@ -57,6 +57,8 @@ public final class MsbBitReader: ByteReader, BitReader {
         self.offset += 1
     }
 
+    // MARK: ByteReader's methods.
+
     public override func byte() -> UInt8 {
         precondition(isAligned, "BitReader is not aligned.")
         return super.byte()