Class: Dpl::Support::Gems::Parse

Inherits:
Struct
  • Object
show all
Defined in:
lib/dpl/support/gems.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#code ⇒ Object

Returns the value of attribute code

Returns:

  • (Object) —

    the current value of code



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# File 'lib/dpl/support/gems.rb', line 25

def code
  @code
end

Instance Method Details

#gems ⇒ Object 



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# File 'lib/dpl/support/gems.rb', line 26

def gems
  walk(*sexp).flatten.each_slice(3).to_a
end

#sexp ⇒ Object 



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# File 'lib/dpl/support/gems.rb', line 63

def sexp
  Ripper.sexp(code)
end

#walk(key, *nodes) ⇒ Object 



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# File 'lib/dpl/support/gems.rb', line 30

def walk(key, *nodes)
  case key
  when :program
    nodes[0].map { |node| walk(*node) }.compact
  when :module
    walk(*nodes[1])
  when :class
    walk(*nodes[2])
  when :bodystmt
    nodes[0].map { |node| walk(*node) }.compact
  when :command
    walk(*nodes[1]) if nodes[0][1] == 'gem'
  when :args_add_block
    args = nodes[0].map { |node| walk(*node) }
    opts = args.last.is_a?(Hash) ? args.pop : {}
    name, version = *args
    [name, version, opts]
  when :bare_assoc_hash
    walk(*nodes[0][0])
  when :assoc_new
    [nodes.map { |node| walk(*node) }].to_h
  when :@label
    nodes.first.sub(':', '').to_sym
  when :string_literal
    walk(*nodes[0])
  when :string_content
    nodes[0][1]
  # when :void_stmt
  # else
  #   raise key.to_s
  end
end