             if (self & ConstraintAttributes.Baseline) {
                 attrs.append(.Baseline)
             }
-        #if os(ios)
+            #if os(ios)
             if (self & ConstraintAttributes.FirstBaseline) {
                 attrs.append(.FirstBaseline)
             }

    static func fromRaw(raw: UInt) -> ConstraintAttributes? { return self(raw) }
    static func fromMask(raw: UInt) -> ConstraintAttributes { return self(raw) }
    
    internal static var None: ConstraintAttributes { return self(0) }
    internal static var Left: ConstraintAttributes { return self(1) }
    internal static var Top: ConstraintAttributes {  return self(2) }

    internal static var CenterY: ConstraintAttributes { return self(512) }
    internal static var Baseline: ConstraintAttributes { return self(1024) }
    
    #if os(iOS)
    internal static var FirstBaseline: ConstraintAttributes { return self(2048) }
    internal static var LeftMargin: ConstraintAttributes { return self(4096) }
    internal static var RightMargin: ConstraintAttributes { return self(8192) }
    internal static var TopMargin: ConstraintAttributes { return self(16384) }
