tempo | expressing continuous reactive code

tempo is a C# library. tempo has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Tempo is a C# library for building reactive applications. Tempo provides mechanisms for safely mixing reactive code with imperative code. Rather than focusing on events, reactive code in Tempo models relationships between elements of time-varying state. Imperative code blocks are isolated; changes made by imperative code are not visible to the rest of the program until the block has finished. In other words, from the perspective of reactive observers, the imperative block appears to have executed instantly. This is great for preventing glitches (temporarily incorrect values) that may cause unwanted side-effects. By modelling reactive code around time-varying state, we can eliminate a great deal of accidental state that would be introduced when using event based models. Tempo also explicitly models the lifetime of code and data. Reactive code is modelled as logically continuous; for example, a reactive expression might bind the contents of a UI widget to always be equal to a corresponding value in the model. The lifetime of this expression may be bound to the duration the view is visible, so when the view is shown, the expression is activated, and when the view is hidden it is deactivated. For this duration, the expression is logically continuously active. Finally, the concept of resource brokers combines time-varying state and lifetime management to provide a way of exposing access to resources without any accidental state.