Module patterns 

Pattern detection module for design pattern mining

This module provides single-pass pattern extraction across codebases. Addresses blockers: A5 (multi-pass overhead), A23 (parse error handling)

Architecture

The pattern detection framework uses a single-pass approach:

1. Parse each file once into AST
2. Walk AST once, collecting signals for ALL patterns
3. Convert signals to patterns after walk
4. Aggregate patterns across files

Example

use tldr_core::patterns::{PatternMiner, PatternConfig};

let miner = PatternMiner::new(PatternConfig::default());
let report = miner.mine_patterns(Path::new("src"), None)?;

Re-exports

pub use constraints::generate_constraints;

pub use constraints::DetectedPatterns;

pub use detector::PatternDetector;

pub use signals::PatternSignals;

Modules

api_conventions

API convention pattern detection

async_patterns

Async/concurrency pattern detection

constraints

LLM constraint generation from detected patterns

detector

Pattern detector - Single-pass AST walker for pattern extraction

error_handling

Error handling pattern detection

format

Text formatting for pattern reports

import_patterns

Import organization pattern detection

language_profile

Language profile definitions for data-driven pattern detection.

languages

Language profile modules for post-migration languages.

naming

Naming convention pattern detection

resource_mgmt

Resource management pattern detection

signals

Pattern signals - Accumulated signals from single AST walk

soft_delete

Soft delete pattern detection

test_idioms

Test idiom pattern detection

type_coverage

Type annotation coverage pattern detection

validation

Input validation pattern detection

Structs

PatternConfig

Configuration for pattern mining

PatternMiner

Pattern miner that performs single-pass extraction across codebases

Traits

HasConfidence

Trait for patterns with a confidence score

Functions

detect_patterns

Detect patterns from a path (convenience function)

detect_patterns_with_config

Detect patterns with custom configuration