A Rust library providing purely functional data structures and a comprehensive glossary of functional programming concepts.
fp-core.rs is a Rust library that supplements the Rust Standard Library with purely functional data structures and educational resources. It provides practical tools for functional programming in Rust, such as implementations of functors, monads, and applicatives, while also offering a comprehensive glossary to explain functional programming concepts with Rust code examples. The project aims to make functional programming more accessible to Rust developers by combining a toolkit with learning materials.
Rust developers interested in learning or applying functional programming concepts, particularly those building applications that benefit from immutable data structures and algebraic abstractions like monads and functors. It is also suitable for educators or teams looking to integrate functional programming patterns into their Rust codebases.
Developers choose fp-core.rs because it offers both a practical library of functional data structures and a detailed educational glossary, bridging the gap between theory and practice. Its alignment with the Fantasy Land specification and implementation of higher-kinded types (HKT) provide a unique, standardized approach to functional programming in Rust, which is not fully natively supported.
A library for functional programming in Rust
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The README provides a comprehensive glossary of functional programming terms with Rust code examples, making complex concepts like monads and functors accessible to learners.
Implements standardized abstractions such as Functors and Monads per the Fantasy Land specification, ensuring consistency and interoperability in functional code.
Offers lightweight HKT implementations to enable advanced functional patterns in Rust, addressing a gap in the language's native type system.
Supplements the Rust Standard Library with immutable data structures, promoting safer, side-effect-free programming practices.
The HKT implementations are workarounds that can be verbose and less type-safe compared to native support in languages like Haskell, leading to potential maintenance hurdles.
As a specialized library, it lacks the broad community support, extensive tooling, and production polish of mainstream Rust crates, which may affect long-term viability.
Functional abstractions and immutable data structures can introduce runtime overhead, such as increased memory usage or slower operations, which might not suit performance-critical applications.
Requires deep familiarity with both Rust and advanced FP theory, making it challenging for developers without prior exposure to category theory or algebraic structures.