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import x.y as z was failing across all Python versions class decorators for Python 3.0..3.3 was failing reduce 3.x while grammar rules
41 lines
1.3 KiB
Python
41 lines
1.3 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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# 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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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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mapexpr ::= BUILD_MAP kvlist
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"""
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def add_custom_rules(self, tokens, customize):
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self.remove_rules("""
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# 3.3+ adds POP_BLOCKS
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whileTruestmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK NOP COME_FROM_LOOP
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whileTruestmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK POP_BLOCK NOP COME_FROM_LOOP
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""")
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super(Python33Parser, self).add_custom_rules(tokens, customize)
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return
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class Python33ParserSingle(Python33Parser, PythonParserSingle):
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pass
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