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Fix 2.x delete statements expression confusion

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rocky
2019-04-23 15:44:05 -04:00
parent 636257f879
commit 5475934c0d
2 changed files with 18 additions and 5 deletions
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20
uncompyle6/parsers/parse2.py
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@@ -96,10 +96,6 @@ class Python2Parser(PythonParser):
for ::= SETUP_LOOP expr for_iter store
for_block POP_BLOCK _come_froms
del_stmt ::= expr DELETE_SLICE+0
del_stmt ::= expr expr DELETE_SLICE+1
del_stmt ::= expr expr DELETE_SLICE+2
del_stmt ::= expr expr expr DELETE_SLICE+3
del_stmt ::= delete_subscr
delete_subscr ::= expr expr DELETE_SUBSCR
del_stmt ::= expr DELETE_ATTR
@@ -372,6 +368,17 @@ class Python2Parser(PythonParser):
self.addRule('del_stmt ::= expr DELETE_ATTR', nop_func)
custom_seen_ops.add(opname)
continue
elif opname.startswith('DELETE_SLICE'):
self.addRule("""
del_expr ::= expr
del_stmt ::= del_expr DELETE_SLICE+0
del_stmt ::= del_expr del_expr DELETE_SLICE+1
del_stmt ::= del_expr del_expr DELETE_SLICE+2
del_stmt ::= del_expr del_expr del_expr DELETE_SLICE+3
""", nop_func)
custom_seen_ops.add(opname)
self.check_reduce['del_expr'] = 'AST'
continue
elif opname == 'DELETE_DEREF':
self.addRule("""
stmt ::= del_deref_stmt
@@ -384,6 +391,7 @@ class Python2Parser(PythonParser):
del_stmt ::= delete_subscr
delete_subscr ::= expr expr DELETE_SUBSCR
""", nop_func)
self.check_reduce['delete_subscr'] = 'AST'
custom_seen_ops.add(opname)
continue
elif opname == 'GET_ITER':
@@ -539,6 +547,10 @@ class Python2Parser(PythonParser):
elif rule == ('or', ('expr', 'jmp_true', 'expr', '\\e_come_from_opt')):
expr2 = ast[2]
return expr2 == 'expr' and expr2[0] == 'LOAD_ASSERT'
elif lhs in ('delete_subscr', 'del_expr'):
op = ast[0][0]
return op.kind in ('and', 'or')
return False
class Python2ParserSingle(Python2Parser, PythonParserSingle):