================================================================================
Multiplication / division
================================================================================

12 * 27 / 42

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

(source_file
  (binary_expression
    left: (binary_expression
      left: (integer_literal)
      operator: (operator)
      right: (integer_literal))
    operator: (operator)
    right: (integer_literal)))

================================================================================
Addition / substraction
================================================================================

12 + 27 - 42

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

(source_file
  (binary_expression
    left: (binary_expression
      left: (integer_literal)
      operator: (operator)
      right: (integer_literal))
    operator: (operator)
    right: (integer_literal)))

================================================================================
Comparisons
================================================================================

12 <= 27

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

(source_file
  (binary_expression
    left: (integer_literal)
    operator: (operator)
    right: (integer_literal)))

================================================================================
Non-associative comparisons
================================================================================

12 <= 27 <= 42

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

(source_file
  (binary_expression
    left: (binary_expression
      left: (integer_literal)
      operator: (operator)
      right: (integer_literal))
    operator: (operator)
    right: (integer_literal)))

================================================================================
And
================================================================================

12 & 27 & 42

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

(source_file
  (binary_expression
    left: (binary_expression
      left: (integer_literal)
      operator: (operator)
      right: (integer_literal))
    operator: (operator)
    right: (integer_literal)))

================================================================================
Or
================================================================================

12 | 27 | 42

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

(source_file
  (binary_expression
    left: (binary_expression
      left: (integer_literal)
      operator: (operator)
      right: (integer_literal))
    operator: (operator)
    right: (integer_literal)))

================================================================================
Unary minus
================================================================================

- - 12

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

(source_file
  (unary_expression
    operator: (operator)
    expression: (unary_expression
      operator: (operator)
      expression: (integer_literal))))

================================================================================
Precedence
================================================================================

-1 | 2 & 3 <= 4 + 5 * 6

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

(source_file
  (unary_expression
    operator: (operator)
    expression: (binary_expression
      left: (integer_literal)
      operator: (operator)
      right: (binary_expression
        left: (integer_literal)
        operator: (operator)
        right: (binary_expression
          left: (integer_literal)
          operator: (operator)
          right: (binary_expression
            left: (integer_literal)
            operator: (operator)
            right: (binary_expression
              left: (integer_literal)
              operator: (operator)
              right: (integer_literal))))))))