Class: CodeTools::AST::HashLiteral

Inherits:
Node
  • Object
show all
Defined in:
lib/rubinius/code/ast/literals.rb

Instance Attribute Summary collapse

Attributes inherited from Node

#line

Instance Method Summary collapse

Methods inherited from Node

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

Constructor Details

#initialize(line, array) ⇒ HashLiteral

Returns a new instance of HashLiteral.



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# File 'lib/rubinius/code/ast/literals.rb', line 118

def initialize(line, array)
  @line = line
  @array = array
end

Instance Attribute Details

#array ⇒ Object

Returns the value of attribute array.



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# File 'lib/rubinius/code/ast/literals.rb', line 116

def array
  @array
end

Instance Method Details

#bytecode(g) ⇒ Object 



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# File 'lib/rubinius/code/ast/literals.rb', line 123

def bytecode(g)
  pos(g)

  count = @array.size
  i = 0

  g.push_cpath_top
  g.find_const :Hash
  g.push_int count / 2
  g.send :new_from_literal, 1

  while i < count
    key = @array[i]
    value = @array[i + 1]

    if key
      g.dup
      key.bytecode(g)
      value.bytecode(g)
      g.send :[]=, 2
      g.pop
    else
      case value
      when HashLiteral
        value.merge_entries_bytecode(g)
      else
        g.push_rubinius
        g.find_const :Runtime
        g.swap
        value.bytecode(g)
        g.send :splat_hash_value, 2
      end
    end

    i += 2
  end
end

#defined(g) ⇒ Object 



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# File 'lib/rubinius/code/ast/literals.rb', line 192

def defined(g)
  g.push_literal "expression"
end

#merge_entries_bytecode(g) ⇒ Object 



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# File 'lib/rubinius/code/ast/literals.rb', line 161

def merge_entries_bytecode(g)
  count = @array.size
  i = 0

  while i < count
    key = @array[i]
    value = @array[i + 1]
    if key
      g.push_rubinius
      g.find_const :Runtime
      g.swap
      key.bytecode(g)
      value.bytecode(g)
      g.send :splat_hash_entry, 3
    else
      case value
      when HashLiteral
        value.merge_entries_bytecode(g)
      else
        g.push_rubinius
        g.find_const :Runtime
        g.swap
        value.bytecode(g)
        g.send :splat_hash_value, 2
      end
    end

    i += 2
  end
end

#to_sexp ⇒ Object 



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# File 'lib/rubinius/code/ast/literals.rb', line 196

def to_sexp
  @array.inject([:hash]) { |s, x| s << (x ? x.to_sexp : [:hash_splat]) }
end