Modular Interpreters and Visitors in Rust with Extensible Variants and CGP
10 months ago
- #CGP
- #Rust
- #Extensible Data Types
- Introduction to the second part of the blog series on Programming Extensible Data Types in Rust with CGP.
- Recap of CGP v0.4.2's support for extensible records and variants.
- Exploration of extensible variants in the context of the visitor pattern for a toy math expression language.
- Discussion on the limitations of the traditional visitor pattern and the need for a more flexible alternative.
- Introduction to the expression problem and its relevance to modular interpreter design.
- Demonstration of implementing an extensible evaluator for arithmetic expressions using CGP's Computer trait.
- Explanation of how to convert arithmetic expressions into Lisp expressions using CGP's ComputerRef trait.
- Advanced techniques including binary operator providers and code-based dispatching.
- Extension of the MathExpr type to include subtraction and negation, showcasing CGP's modularity.
- Conclusion highlighting the benefits of CGP for modular interpreter design and extensible data types.