Crate mete 

Mete: Structural metrics engine for code quality analysis.

Data-oriented design: flat arrays, single-pass traversal, no intermediate events.

Architecture

• data: SoA data structures for results
• metrics: Pure metric computation functions
• lang: Language specifications and tree-sitter integration
• walk: Single-pass AST walker
• dup: Cross-file duplicate detection
• output: Result formatting

Example

use mete::{analyze_file, Language};
use std::path::PathBuf;

let result = analyze_file(PathBuf::from("src/main.rs"), Language::Rust)?;
println!("MI: {}, CC: {}", result.mi, result.cc_max);

Re-exports

pub use data::FileResults;

pub use data::FunctionData;

pub use data::FunctionResults;

pub use data::SingleFileResult;

pub use data::StringInterner;

pub use dup::DuplicateGroup;

pub use dup::DuplicateIndex;

pub use dup::FunctionLocation;

pub use lang::BranchKind;

pub use lang::Language;

pub use lang::LanguageSpec;

pub use metrics::maintainability_index;

pub use metrics::maintainability_index_from_averages;

pub use metrics::CcLevel;

pub use metrics::CognitiveLevel;

pub use metrics::DepthLevel;

pub use metrics::MiLevel;

pub use walk::WalkError;

pub use walk::Walker;

Modules

data

Data-oriented structures using Struct of Arrays (SoA) layout.

dup

Cross-file duplicate detection using structural fingerprints.

lang

Language specifications for tree-sitter parsing.

metrics

Pure metric computation functions.

output

Output formatting for analysis results.

walk

Single-pass tree-sitter AST walker.

Functions

analyze_directory

Analyze a directory with glob pattern.

analyze_file

Analyze a single file.

analyze_file_auto

Analyze a single file, auto-detecting language from extension.

analyze_files

Analyze multiple files in parallel.

build_duplicate_index

Build cross-file duplicate index from function results.

collect_results

Collect results into SoA structures.

is_skippable