Class: HamlLint::RubyParser

Inherits:
Object
  • Object
show all
Defined in:
lib/haml_lint/ruby_parser.rb

Overview

Parser for the Ruby language.

This provides a convenient wrapper around the `parser` gem and the Astrolabe integration (now built-in to RuboCop, so no longer called Astrolabe) to go with it. It is intended to be used for linter checks that require deep inspection of Ruby code.

Instance Method Summary collapse

Constructor Details

#initializeRubyParser

Creates a reusable parser.


16
17
18
19
# File 'lib/haml_lint/ruby_parser.rb', line 16

def initialize
  @builder = ::RuboCop::AST::Builder.new
  @parser = ::Parser::CurrentRuby.new(@builder)
end

Instance Method Details

#parse(source) ⇒ Array

Parse the given Ruby source into an abstract syntax tree.

Parameters:

  • source (String)

    Ruby source code

Returns:

  • (Array)

    syntax tree in the form returned by Parser gem


25
26
27
28
29
30
31
# File 'lib/haml_lint/ruby_parser.rb', line 25

def parse(source)
  buffer = ::Parser::Source::Buffer.new('(string)')
  buffer.source = source

  @parser.reset
  @parser.parse(buffer)
end