Makes it easy to transform a JavaScript AST
Core istanbul API for JS code coverage
periscopic
[](https://travis-ci.org/mulesoft-labs/yaml-ast-parser)
magic-string with AST shortcut.
Parse in reverse
AST utility module for statically analyzing JSX
[](https://travis-ci.org/mulesoft-labs/yaml-ast-parser)
Datadog instrumentation addon for Node.js
JavaScript code generator from an ESTree-compliant AST.
AST utils for webassemblyjs
AST-aware v8-to-istanbul
A toolkit for easy Babel AST generation and manipulation.
A modern CSS parser and stringifier with TypeScript support
Generate regular expressions from regjsparser’s AST.
Default code-generator for pug. It generates HTML via a JavaScript template function.
Transform HAST to Babel AST (JSX)
Search and Rewrite code at large scale using precise AST pattern
Collection of useful helper functions when trying to determine module type (CommonJS or AMD) properties of an AST node.
Flow types for the Javascript AST
A library for analysing JS RegExp
Parses well-formed HTML (meaning all tags closed) into an AST and back. quickly.
Oxc Parser Node API
A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations
Generates highly concise, deterministic Markdown coverage digests tailored for LLMs and autonomous agents by matching coverage deficits to their AST semantic boundaries rather than line numbers.
api_query_language parses filter and sort expressions from query strings, producing a structured AST that consumers can map onto their own query backend (ActiveRecord, Sequel, Elasticsearch, etc). Zero ActiveSupport and zero ActiveRecord dependency.
Combines Ruby's native Coverage execution counts with Prism AST analysis to map per-test coverage onto semantic units (methods, branches, conditions), find redundant tests grouped by duplication type with confidence levels, and emit a removal patch — never deleting a test that would open a coverage gap. Report + patch only; asks for approval before any change.
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