Common+Measurement

It should not conflict with other libs extensions since the right part is a decorator.

It should not conflict with other libs extensions since the right part is a decorator.

Returns a decorator that provides additional methods.

Using a decorator is a convenient way of extending Measurement while mitigating the risk of conflicting with extensions from other libraries or Apple. Extending standard structures like Measurement with properties like var meters is convenient:

• it avoids extracting value without explicit conversion to a certain unit
• it simplifies getting a value from an optional Measurement

Typical use cases for MeasurementDecorator are:

• extracting value from a value representing a unit of measure: let optionalDistanceInMeters = distance?.tt.meters
• performing computations on values representing units of measure: cumulativeDistance += anotherDistance.tt
• comparing values representing units of measure: if delay < .tt.seconds(5) {}
• combining value extraction and typecast: let intValue = distance.tt.intValue(in: .meters)

Returns the type of decorator that provides additional static methods. A decorator is a convenient way of extending Measurement while mitigating the risk of conflicting with extensions from other libraries or Apple.