Method: Opulent::Compiler#each_node

Defined in:
lib/opulent/compiler/control.rb

#each_node(node, indent) ⇒ Object

Generate the code for a while control structure

Parameters:

  • node (Array) —

    Node code generation data

  • indent (Fixnum) —

    Size of the indentation to be added



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# File 'lib/opulent/compiler/control.rb', line 127

def each_node(node, indent)
  # Process named variables for each structure
  variables = node[@value][1].clone

  # The each structure accept missing arguments as well, therefore we need to
  # substitute them with our defaults
  #
  # each in iterable
  # each value in iterable
  # each key, value in iterable

  # Value argument name provided only
  if variables.length == 1
    variables.unshift Settings::DEFAULT_EACH_KEY

  # Missing key and value arguments
  elsif variables.empty?
    variables[0] = Settings::DEFAULT_EACH_KEY
    variables[1] = Settings::DEFAULT_EACH_VALUE
  end

  # Choose whether to apply each with index (Arrays) or each (Hashes) methods
  #buffer_eval "_opulent_send_method = (#{node[@value][1]}.is_a?(Array) ? :each_with_index : :each)"
  case node[@value][0][0]
  when '[]'
    buffer_eval "#{node[@value][0][1]}.each_with_index do |#{variables.reverse.join ', '}|"
  else
    buffer_eval "#{node[@value][0][1]}.each do |#{variables.join ', '}|"
  end

  # Evaluate child nodes
  node[@children].each do |child|
    root child, indent
  end

  # End
  buffer_eval 'end'
end