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Reduce unecessary grammar rules in 2.x

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rocky
2017-11-22 13:06:05 -05:00
parent 288516d8c2
commit c0f0485754
2 changed files with 31 additions and 24 deletions
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20
uncompyle6/parsers/parse3.py
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@@ -625,20 +625,20 @@ class Python3Parser(PythonParser):
# Loop over instructions adding custom grammar rules based on
# a specific instruction seen.
if 'PyPy' in customize:
self.addRule("""
stmt ::= assign3_pypy
stmt ::= assign2_pypy
assign3_pypy ::= expr expr expr designator designator designator
assign2_pypy ::= expr expr designator designator
""", nop_func)
for i, token in enumerate(tokens):
opname = token.kind
opname_base = opname[:opname.rfind('_')]
# The order listed is roughly alphabetic by instruction opcode.
if opname == 'PyPy':
self.addRule("""
stmt ::= assign3_pypy
stmt ::= assign2_pypy
assign3_pypy ::= expr expr expr designator designator designator
assign2_pypy ::= expr expr designator designator
""", nop_func)
continue
elif opname_base == 'BUILD_CONST_KEY_MAP':
# The order of opname listed is roughly sorted below
if opname_base == 'BUILD_CONST_KEY_MAP':
# This is in 3.6+
kvlist_n = 'expr ' * (token.attr)
rule = "mapexpr ::= %sLOAD_CONST %s" % (kvlist_n, opname)