def _parse_expression(self, parent_precedence=0):
unary_operator_precedence = SyntaxKind.get_unary_operator_precedence(
self._get_current_token().get_kind())
if unary_operator_precedence != 0 and unary_operator_precedence >= parent_precedence:
operator_token = self._next_token()
operand = self._parse_expression(unary_operator_precedence)
left = UnaryExpressionSyntax(operator_token, operand)
else:
left = self._parse_primary()
while True:
precedence = SyntaxKind.get_binary_operator_precedence(
self._get_current_token().get_kind())
if precedence == 0 or precedence <= parent_precedence:
break
operator_token = self._next_token()
right = self._parse_expression(precedence)
left = BinaryExpressionSyntax(left, operator_token, right)
return left
def test_binary_operators(self):
for i in SyntaxKind.str:
if SyntaxKind.get_binary_operator_precedence(i) > 0:
pass