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#10869: do not visit root node twice in ast.increment_lineno().

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This commit is contained in:
Georg Brandl 2011-01-09 07:38:51 +00:00
parent 5b2d9ddf69
commit 619e7ba814
5 changed files with 17 additions and 8 deletions
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8
Lib/ast.py
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@ -159,8 +159,6 @@ def increment_lineno(node, n=1):
Increment the line number of each node in the tree starting at *node* by *n*.
This is useful to "move code" to a different location in a file.
"""
if 'lineno' in node._attributes:
node.lineno = getattr(node, 'lineno', 0) + n
for child in walk(node):
if 'lineno' in child._attributes:
child.lineno = getattr(child, 'lineno', 0) + n
@ -211,9 +209,9 @@ def get_docstring(node, clean=True):
def walk(node):
"""
Recursively yield all child nodes of *node*, in no specified order. This is
useful if you only want to modify nodes in place and don't care about the
context.
Recursively yield all descendant nodes in the tree starting at *node*
(including *node* itself), in no specified order. This is useful if you
only want to modify nodes in place and don't care about the context.
"""
from collections import deque
todo = deque([node])