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- # 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".
- # for t in range(first, last):
- # print(tokens[t])
- # print("=" * 30)
- 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()
- if first_come_from.attr < tokens[first].offset:
- return True
- return first_come_from.attr > except_handler_first_offset
- return False
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