================================================================================
unary operator -
================================================================================

foo = -3

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

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (operation
          (unary_operation
            (literal_value
              (numeric_lit))))))))

================================================================================
unary operator !
================================================================================

foo = !true

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

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (operation
          (unary_operation
            (literal_value
              (bool_lit))))))))

================================================================================
binary operators +
================================================================================

foo = 1+2

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

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (operation
          (binary_operation
            (literal_value
              (numeric_lit))
            (literal_value
              (numeric_lit))))))))

================================================================================
precedence in binary operators
================================================================================

foo = a != b && c == d

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

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (operation
          (binary_operation
            (operation
              (binary_operation
                (variable_expr
                  (identifier))
                (variable_expr
                  (identifier))))
            (operation
              (binary_operation
                (variable_expr
                  (identifier))
                (variable_expr
                  (identifier))))))))))

================================================================================
precedence in binary operators 2
================================================================================

foo = a.foo != "" && b.foo == "" ? 1 : 0


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

(config_file
  (body
    (attribute
      (identifier)
      (expression
        (conditional
          (expression
            (operation
              (binary_operation
                (operation
                  (binary_operation
                    (variable_expr
                      (identifier))
                    (get_attr
                      (identifier))
                    (literal_value
                      (string_lit
                        (quoted_template_start)
                        (quoted_template_end)))))
                (operation
                  (binary_operation
                    (variable_expr
                      (identifier))
                    (get_attr
                      (identifier))
                    (literal_value
                      (string_lit
                        (quoted_template_start)
                        (quoted_template_end))))))))
          (expression
            (literal_value
              (numeric_lit)))
          (expression
            (literal_value
              (numeric_lit))))))))