# Clippy

> static analyzer for the Rust programming language

**Wikidata**: [Q102402143](https://www.wikidata.org/wiki/Q102402143)  
**Source**: https://4ort.xyz/entity/clippy

## Summary
Clippy is a free, cross-platform static analyzer for the Rust programming language that helps catch common programming errors and style issues.

## Key Facts
- Clippy is a static analyzer for the Rust programming language.
- It is classified as free software distributed under terms that allow users to freely run, study, change and distribute it.
- The tool is cross-platform, capable of operating on multiple computing platforms.
- It is licensed under the Apache Software License 2.0 and an Expat license (with MIT License qualifier).
- The official website is https://rust-lang.github.io/rust-clippy/.
- The source code is hosted on GitHub at https://github.com/rust-lang/rust-clippy.
- It is categorized as a lint tool and is named after Clippy.
- The Debian source package is named rust-clippy.
- It supports the Rust programming language.

## FAQs
### Q: What is Clippy used for?
A: Clippy is a static analyzer for the Rust programming language that helps catch common programming errors and style issues.

### Q: Is Clippy open source?
A: Yes, Clippy is free software distributed under terms that allow users to freely run, study, change and distribute it.

### Q: What license is Clippy under?
A: Clippy is licensed under the Apache Software License 2.0 and an Expat license (with MIT License qualifier).

## Why It Matters
Clippy plays a crucial role in maintaining code quality within the Rust programming community by providing automated analysis of Rust code. As a static analyzer, it helps developers catch common programming errors and style issues before code is compiled or run, reducing bugs and improving code consistency. The tool's cross-platform nature ensures it can be used across different operating systems, making it accessible to a wide range of developers. By integrating with Rust's build system, Clippy becomes an essential part of the development workflow, helping to enforce coding standards and best practices throughout the Rust ecosystem.

## Notable For
- Clippy is specifically designed as a static analyzer for the Rust programming language.
- It is maintained by the Rust community and distributed as free software.
- The tool operates across multiple computing platforms due to its cross-platform design.
- Clippy provides automated analysis of Rust code to catch common errors and style issues.
- It integrates with Rust's build system to enforce coding standards and best practices.

## Body
### Technical Overview
Clippy is a static analyzer for the Rust programming language that operates as a lint tool. It analyzes Rust source code to identify potential issues, style violations, and common programming mistakes before compilation or execution. The analyzer uses a combination of pattern matching and heuristics to detect problems in code.

### Licensing and Distribution
Clippy is distributed under the Apache Software License 2.0 and an Expat license, which includes a MIT License qualifier. This dual licensing approach allows for both commercial and open-source usage while maintaining compatibility with other open-source projects. The software is classified as free software, meaning users can freely run, study, modify, and distribute it.

### Platform Support
The tool is designed to be cross-platform, capable of operating on multiple computing platforms without modification. This cross-platform capability ensures accessibility across different operating systems, including Linux, macOS, and Windows.

### Documentation and Resources
Clippy provides comprehensive documentation through its official website at https://rust-lang.github.io/rust-clippy/. The documentation includes usage guides, examples, and information about available checks. Additionally, a user manual is available at https://doc.rust-lang.org/clippy/, offering detailed explanations of the analyzer's features and capabilities.

### Implementation Details
The analyzer's source code is hosted on GitHub at https://github.com/rust-lang/rust-clippy/. The repository follows standard open-source development practices, with contributions from the Rust community. The tool's implementation uses the TOML file format for configuration and settings.

### Integration with Rust Ecosystem
Clippy integrates with Rust's build system, making it accessible through Rust's package manager (cargo). The Debian source package is named rust-clippy, and it's included in the Rust toolchain distribution. The tool is also available through the Nix package manager as rust-clippy and through Guix as rust-clippy.

## References

1. [crates.io](https://crates.io/crates/clippy)
2. [The rust-clippy Open Source Project on Open Hub: Languages Page. Open Hub](https://www.openhub.net/p/rust-clippy/analyses/latest/languages_summary)
3. [Source](https://api.github.com/repos/rust-lang/rust-clippy)