Class: CodeTools::AST::ElementAssignment

Inherits:
SendWithArguments show all
Defined in:
lib/rubinius/ast/sends.rb

Instance Attribute Summary

Attributes inherited from SendWithArguments

#arguments

Attributes inherited from Send

#block, #name, #privately, #receiver, #variable, #vcall_style

Attributes inherited from Node

#line

Instance Method Summary collapse

Methods inherited from SendWithArguments

#arguments_sexp

Methods inherited from Send

#arguments_sexp, #check_local_reference, #defined, #receiver_sexp, #to_sexp, #value_defined

Methods inherited from Node

#ascii_graph, #attributes, #children, #defined, match_arguments?, match_send?, #new_block_generator, #new_generator, #node_name, #or_bytecode, #pos, #set_child, #to_sexp, #transform, transform, transform_comment, transform_kind, transform_kind=, transform_name, #value_defined, #visit, #walk

Constructor Details

#initialize(line, receiver, arguments) ⇒ ElementAssignment

Returns a new instance of ElementAssignment.



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# File 'lib/rubinius/ast/sends.rb', line 202

def initialize(line, receiver, arguments)
  @line = line

  @receiver = receiver
  @privately = receiver.kind_of?(Self) ? true : false

  @name = :[]=

  case arguments
  when PushArgs
    @arguments = PushArguments.new line, arguments
  else
    @arguments = Arguments.new line, arguments
  end
end

Instance Method Details

#bytecode(g) ⇒ Object 



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# File 'lib/rubinius/ast/sends.rb', line 226

def bytecode(g)
  return masgn_bytecode(g) if g.state.masgn?

  @receiver.bytecode(g)
  @arguments.bytecode(g)

  g.dup

  if @arguments.splat?
    case @arguments
    when PushArguments
      g.move_down @arguments.size + 2
      g.swap
      flag = true
    when Arguments
      # TODO: Optimize bytecode for x[a, *b, c, d] = e
      g.send :last, 0, true
      g.move_down @arguments.size + 2
      flag = false
    end

    g.push :nil
    g.send_with_splat @name, @arguments.size, @privately, flag
  else
    g.move_down @arguments.size + 1
    g.send @name, @arguments.size, @privately
  end

  g.pop
end

#masgn_bytecode(g) ⇒ Object 



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# File 'lib/rubinius/ast/sends.rb', line 218

def masgn_bytecode(g)
  @receiver.bytecode(g)
  g.swap
  @arguments.masgn_bytecode(g)
  g.send @name, @arguments.size + 1, @privately
  # TODO: splat
end

#sexp_name ⇒ Object 



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# File 'lib/rubinius/ast/sends.rb', line 257

def sexp_name
  :attrasgn
end