Ruby

Tier 1 plugin for Ruby source (Rails-style apps, gems, scripts). Extracts classes, modules, methods, require graph, mixin edges, calls, and constructor metadata.

Implementation


Plugin crate	`crates/rgctl-lang-ruby` (`RubyPlugin`)
Grammar	`tree-sitter-ruby` (pinned in crate `Cargo.toml`)
Extensions	`.rb`, `.rake`, `.gemspec` (via `languages.toml`)
Discover	`rgctl discover . -l ruby -e vendor,tmp,node_modules --with-cfg`
CFG / taint	Enabled (`LanguageAnalysisProfile`)

AST coverage is tracked in crates/rgctl-lang-ruby/ruby-ast-coverage.json (CI: ruby_ast_coverage_manifest_matches_grammar).

What is extracted

Nodes

Function — instance and singleton methods; FQN uses :: for constants/modules and # / . for methods (see ruby-extract-honesty.md)
Class / Module
Import — require / require_relative targets (unresolved string paths as import symbols)
Field — attr_* and ivars assigned in initialize (Layer F symbols)

Edges

Edge	Meaning
`CALLS`	Statically resolved calls; dynamic calls tagged `metadata.unresolved`
`EXTENDS`	`include` / `prepend` into class/module
`USES`	`extend` on singleton
`INSTANTIATES`	`.new` on constant/receiver
`Import`	Require graph

Honesty limits

See ruby-extract-honesty.md — no Ruby method lookup, refinements, or full block/yield CFG for arbitrary procs.

Verification


Fixture	`rgctl-tests/ecommerce-ruby`
Langfeatures	`tests/fixtures/ruby/langfeatures`
Example corpus	`example/discourse` (`-l ruby`; `RGCTL_DISCOURSE_REPO`)
Smoke script	`rgctl-tests/gql-verification-smoke/verify-extraction-gql-ruby.sh`

RGCTL=target/release/rgctl ./rgctl-tests/gql-verification-smoke/verify-extraction-gql-ruby.sh

Integration tests: tests/ruby_langfeatures.rs, tests/ruby_cfg_analysis.rs, tests/dashboard_ecommerce_ruby.rs, tests/ruby_taint.rs (taint unit tests in rgctl-analysis).