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Book Overview & Buying
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Table Of Contents
Design Patterns and Best Practices in Rust
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The Command pattern, as traditionally defined, transforms operations into objects, enabling us to store, pass, and manipulate operations just like any other data. By encapsulating operations as first-class objects, we gain powerful capabilities, including operation history, undo/redo functionality, command queuing, and operation logging. This pattern is fundamental to building interactive applications where users expect to be able to reverse their actions.
In Rust, we don't have objects, but the pattern is quite useful regardless. Let's see how we can realize it in Rust, and how it helps our implementation.
As our calculator evolves beyond simple expression evaluation, users expect sophisticated operation management. They want to set variables, clear the calculator state, and most importantly, undo or redo operations. Managing these diverse operations consistently becomes challenging...