================================================================================
get attr
================================================================================

foo = bar.baz

--------------------------------------------------------------------------------

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (variable_expr
          (identifier))
        (get_attr
          (identifier))))))

================================================================================
get index
================================================================================

foo = bar[1]

--------------------------------------------------------------------------------

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (variable_expr
          (identifier))
        (index
          (expression
            (literal_value
              (numeric_lit))))))))

================================================================================
attr splat
================================================================================

foo = bar.*.foo

--------------------------------------------------------------------------------

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (variable_expr
          (identifier))
        (splat
          (attr_splat))
        (get_attr
          (identifier))))))

================================================================================
full splat
================================================================================

foo = bar[*].foo

--------------------------------------------------------------------------------

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (variable_expr
          (identifier))
        (splat
          (full_splat))
        (get_attr
          (identifier))))))