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40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
# Copyright (c) 2016 Rocky Bernstein
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"""
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spark grammar differences over Python 3.2 for Python 3.3.
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"""
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from __future__ import print_function
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from uncompyle6.parser import PythonParserSingle
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from uncompyle6.parsers.parse32 import Python32Parser
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class Python33Parser(Python32Parser):
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def p_33on(self, args):
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"""
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# Python 3.3+ adds yield from.
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expr ::= yield_from
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yield_from ::= expr expr YIELD_FROM
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# We do the grammar hackery below for semantics
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# actions that want c_stmts_opt at index 1
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iflaststmt ::= testexpr c_stmts_opt33
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c_stmts_opt33 ::= JUMP_BACK JUMP_ABSOLUTE c_stmts_opt
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# Python 3.5+ has jump optimization to remove the redundant
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# jump_excepts. But in 3.3 we need them added
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tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
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try_middle else_suite
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jump_excepts come_from_except_clauses
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trystmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
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try_middle
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jump_excepts come_from_except_clauses
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jump_excepts ::= jump_except+
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"""
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class Python33ParserSingle(Python33Parser, PythonParserSingle):
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pass
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