.
├── Makefile              configuration to compile the shared library and native tests
├── Rakefile              configuration to compile the native extension and run the Ruby tests
├── bin
│   ├── lex               runs the lexer on a file or string, prints the tokens, and compares to ripper
│   ├── parse             runs the parse on a file or string and prints the AST
│   └── prism             a CLI for development and debugging
├── config.yml            specification for tokens and nodes in the tree
├── doc                   documentation website
├── docs                  markdown documentation about the project
├── ext
│   └── prism
│       ├── extconf.rb    configuration to generate the Makefile for the native extension
│       └── extension.c   the native extension that interacts with libprism
├── fuzz                  files related to fuzz testing
├── gemfiles              gemfiles used by different Ruby versions in CI
├── include
│   ├── prism             header files for the shared library
│   └── prism.h           main header file for the shared library
├── java                  Java bindings for the shared library
├── java-wasm             Java WASM bindings for the shared library
├── javascript            JavaScript WASM bindings for the shared library
├── lib
│   ├── prism             Ruby library files
│   └── prism.rb          main entrypoint for the Ruby library
├── rakelib               various Rake tasks for the project
├── rbi                   RBI type signatures for the Ruby library
├── rust
│   ├── ruby-prism        Rustified crate for the shared library
│   └── ruby-prism-sys    FFI binding for Rust
├── sig                   RBS type signatures for the Ruby library
├── src
│   ├── util              various utility files
│   └── prism.c           main entrypoint for the shared library
├── templates             contains ERB templates generated by templates/template.rb
│   └── template.rb       generates code from the nodes and tokens configured by config.yml
└── test
    └── prism
        ├── fixtures      Ruby code used for testing
        └── snapshots     snapshots of generated syntax trees corresponding to fixtures

bundle install

bundle exec rake compile

bin/parse -e "1 + 2"