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Python 3.5 CALL_FUNCTION_VAR handling

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rocky
2018-03-26 07:42:15 -04:00
parent 710c950965
commit 74f01fbe33
4 changed files with 29 additions and 15 deletions
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36
uncompyle6/semantics/customize.py
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@@ -254,8 +254,8 @@ def customize_for_version(self, is_pypy, version):
elif key.kind.startswith('CALL_FUNCTION_VAR'):
# CALL_FUNCTION_VAR's top element of the stack contains
# the variable argument list, then comes
# annotation args, then keyword args,
# and finally on the most bottom (but position 1
# annotation args, then keyword args.
# In the most least-top-most stack entry, but position 1
# in node order, the positional args.
argc = node[-1].attr
nargs = argc & 0xFF
@@ -320,11 +320,15 @@ def customize_for_version(self, is_pypy, version):
key = key[i]
pass
if key.kind.startswith('CALL_FUNCTION_VAR_KW'):
# Python 3.5 changes the stack position of *args. kwargs come
# after *args whereas in earlier Pythons, *args is at the end
# which simplifies things from our perspective.
# Python 3.6+ replaces CALL_FUNCTION_VAR_KW with CALL_FUNCTION_EX
# We will just swap the order to make it look like earlier Python 3.
# Python 3.5 changes the stack position of
# *args: kwargs come after *args whereas
# in earlier Pythons, *args is at the end
# which simplifies things from our
# perspective. Python 3.6+ replaces
# CALL_FUNCTION_VAR_KW with
# CALL_FUNCTION_EX We will just swap the
# order to make it look like earlier
# Python 3.
entry = table[key.kind]
kwarg_pos = entry[2][1]
args_pos = kwarg_pos - 1
@@ -335,7 +339,15 @@ def customize_for_version(self, is_pypy, version):
args_pos = kwarg_pos
kwarg_pos += 1
elif key.kind.startswith('CALL_FUNCTION_VAR'):
nargs = node[-1].attr & 0xFF
# CALL_FUNCTION_VAR's top element of the stack contains
# the variable argument list, then comes
# annotation args, then keyword args.
# In the most least-top-most stack entry, but position 1
# in node order, the positional args.
argc = node[-1].attr
nargs = argc & 0xFF
kwargs = (argc >> 8) & 0xFF
# FIXME: handle annotation args
if nargs > 0:
template = ('%c(%C, ', 0, (1, nargs+1, ', '))
else:
@@ -343,16 +355,14 @@ def customize_for_version(self, is_pypy, version):
self.template_engine(template, node)
args_node = node[-2]
if args_node == 'pos_arg':
args_node = args_node[0]
if args_node == 'expr':
if args_node in ('pos_arg', 'expr'):
args_node = args_node[0]
if args_node == 'build_list_unpack':
template = ('*%P)', (0, len(args_node)-1, ', *', 100))
self.template_engine(template, args_node)
else:
if len(node) > 3:
template = ('*%c, %C)', 1, (2, -1, ', '))
if len(node) - nargs > 3:
template = ('*%c, %C)', 1, (nargs+kwargs+1, -1, ', '))
else:
template = ('*%c)', 1)
self.template_engine(template, node)