ast_helper

Helper tool to debug parser and formatter

Programming language: Crystal

License: MIT License

Tags: Tools    

README

ast_helper

Installation

$ git checkout https://github.com/bcardiff/crystal-ast-helper.git
$ cd crystal-ast-helper
$ shards
$ crystal src/ast_helper.cr

$ open http://localhost:9090

If you want to use with crystal head use:

$ path/to/crystal-clone/bin/crystal src/ast_helper.cr

Usage

When opening http://localhost:9090 you will be able to:

• input source
• view the output according to the formatter
• view the tokens returned by the lexer used for parsing and for formatting
  • view the tokens consumed so far even if the formatter fails
• view the stack trace of each token
• view the AST of the whole program

Contributing

1. Fork it (https://github.com/bcardiff/crystal-ast-helper/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• bcardiff Brian J. Cardiff - creator, maintainer