#  Copyright (c) 2020 Rocky Bernstein

from uncompyle6.parsers.treenode import SyntaxTree

def tryelsestmt(self, lhs, n, rule, ast, tokens, first, last):
    # Check the end of the except handler that there isn't a jump from
    # inside the except handler to the end. If that happens
    # then this is a "try" with no "else".
    except_handler = ast[3]
    if except_handler == "except_handler_else":
        except_handler = except_handler[0]
    if except_handler == "except_handler":

        come_from = except_handler[-1]
        # We only care about the *first* come_from because that is the
        # the innermost one. So if the "tryelse" is invalid (should be a "try")
        # it will be invalid here.
        if come_from == "COME_FROM":
            first_come_from = except_handler[-1]
        elif come_from == "END_FINALLY":
            return False
        else:
            assert come_from == "come_froms"
            first_come_from = come_from[0]

        leading_jump = except_handler[0]

        # We really don't care that this is a jump per-se. But
        # we could also check that this jumps to the end of the except if
        # desired.
        if isinstance(leading_jump, SyntaxTree):
            except_handler_first_offset = leading_jump.first_child().off2int()
        else:
            except_handler_first_offset = leading_jump.off2int()
        return first_come_from.attr > except_handler_first_offset
    return False