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[RFC] inspect: BlockFinder: handle nested parens with decorators #21425

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[RFC] inspect: BlockFinder: handle nested parens with decorators #21425

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10 changes: 8 additions & 2 deletions Lib/inspect.py
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Original file line number Diff line number Diff line change
Expand Up @@ -925,6 +925,7 @@ def __init__(self):
self.passline = False
self.indecorator = False
self.decoratorhasargs = False
self.nestedparens = 0
self.last = 1

def tokeneater(self, type, token, srowcol, erowcol, line):
Expand All @@ -941,10 +942,15 @@ def tokeneater(self, type, token, srowcol, erowcol, line):
elif token == "(":
if self.indecorator:
self.decoratorhasargs = True
self.nestedparens += 1
elif token == ")":
if self.indecorator:
self.indecorator = False
self.decoratorhasargs = False
self.nestedparens -= 1
if self.nestedparens == 0:
self.indecorator = False
self.decoratorhasargs = False
else:
assert self.nestedparens > 0, self.nestedparens
elif type == tokenize.NEWLINE:
self.passline = False # stop skipping when a NEWLINE is seen
self.last = srowcol[0]
Expand Down