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80 lines
3.0 KiB
Python
80 lines
3.0 KiB
Python
# Copyright (c) 2016 Rocky Bernstein
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"""
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spark grammar differences over Python 3.4 for Python 3.5.
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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 spark_parser import DEFAULT_DEBUG as PARSER_DEFAULT_DEBUG
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from uncompyle6.parsers.parse34 import Python34Parser
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class Python35Parser(Python34Parser):
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def __init__(self, debug_parser=PARSER_DEFAULT_DEBUG):
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super(Python35Parser, self).__init__(debug_parser)
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self.customized = {}
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def p_35on(self, args):
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"""
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# Python 3.5+ has WITH_CLEANUP_START/FINISH
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withstmt ::= expr SETUP_WITH exprlist suite_stmts_opt
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POP_BLOCK LOAD_CONST COME_FROM_WITH
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WITH_CLEANUP_START WITH_CLEANUP_FINISH END_FINALLY
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withstmt ::= expr SETUP_WITH POP_TOP suite_stmts_opt
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POP_BLOCK LOAD_CONST COME_FROM_WITH
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WITH_CLEANUP_START WITH_CLEANUP_FINISH END_FINALLY
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withasstmt ::= expr SETUP_WITH designator suite_stmts_opt
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POP_BLOCK LOAD_CONST COME_FROM_WITH
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WITH_CLEANUP_START WITH_CLEANUP_FINISH END_FINALLY
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inplace_op ::= INPLACE_MATRIX_MULTIPLY
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binary_op ::= BINARY_MATRIX_MULTIPLY
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# Python 3.5+ does jump optimization
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# In <.3.5 the below is a JUMP_FORWARD to a JUMP_ABSOLUTE.
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# in return_stmt, we will need the semantic actions in pysource.py
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# to work out whether to dedent or not based on the presence of
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# RETURN_END_IF vs RETURN_VALUE
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ifelsestmtc ::= testexpr c_stmts_opt JUMP_FORWARD else_suitec
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# ifstmt ::= testexpr c_stmts_opt
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# Python 3.3+ also has yield from. 3.5 does it
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# differently than 3.3, 3.4
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expr ::= yield_from
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yield_from ::= expr GET_YIELD_FROM_ITER LOAD_CONST YIELD_FROM
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# Python 3.4+ has more loop optimization that removes
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# JUMP_FORWARD in some cases, and hence we also don't
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# see COME_FROM
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_ifstmts_jump ::= c_stmts_opt
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"""
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class Python35ParserSingle(Python35Parser, PythonParserSingle):
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pass
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if __name__ == '__main__':
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# Check grammar
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p = Python35Parser()
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p.checkGrammar()
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from uncompyle6 import PYTHON_VERSION, IS_PYPY
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if PYTHON_VERSION == 3.5:
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lhs, rhs, tokens, right_recursive = p.checkSets()
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from uncompyle6.scanner import get_scanner
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s = get_scanner(PYTHON_VERSION, IS_PYPY)
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opcode_set = set(s.opc.opname).union(set(
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"""JUMP_BACK CONTINUE RETURN_END_IF COME_FROM
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LOAD_GENEXPR LOAD_ASSERT LOAD_SETCOMP LOAD_DICTCOMP LOAD_CLASSNAME
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LAMBDA_MARKER RETURN_LAST
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""".split()))
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remain_tokens = set(tokens) - opcode_set
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import re
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remain_tokens = set([re.sub('_\d+$','', t) for t in remain_tokens])
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remain_tokens = set([re.sub('_CONT$','', t) for t in remain_tokens])
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remain_tokens = set(remain_tokens) - opcode_set
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print(remain_tokens)
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# print(sorted(p.rule2name.items()))
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