Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
|
|
|
ast
|
|
|
|
~~~
|
|
|
|
|
|
|
|
The `ast` module helps Python applications to process trees of the Python
|
|
|
|
abstract syntax grammar. The abstract syntax itself might change with
|
|
|
|
each Python release; this module helps to find out programmatically what
|
|
|
|
the current grammar looks like and allows modifications of it.
|
|
|
|
|
|
|
|
An abstract syntax tree can be generated by passing `ast.PyCF_ONLY_AST` as
|
|
|
|
a flag to the `compile()` builtin function or by using the `parse()`
|
|
|
|
function from this module. The result will be a tree of objects whose
|
|
|
|
classes all inherit from `ast.AST`.
|
|
|
|
|
|
|
|
A modified abstract syntax tree can be compiled into a Python code object
|
|
|
|
using the built-in `compile()` function.
|
|
|
|
|
|
|
|
Additionally various helper functions are provided that make working with
|
|
|
|
the trees simpler. The main intention of the helper functions and this
|
|
|
|
module in general is to provide an easy to use interface for libraries
|
|
|
|
that work tightly with the python syntax (template engines for example).
|
|
|
|
|
|
|
|
|
|
|
|
:copyright: Copyright 2008 by Armin Ronacher.
|
|
|
|
:license: Python License.
|
|
|
|
"""
|
|
|
|
from _ast import *
|
|
|
|
|
|
|
|
|
2019-03-07 16:38:08 -04:00
|
|
|
def parse(source, filename='<unknown>', mode='exec', *,
|
2019-06-11 21:55:28 -03:00
|
|
|
type_comments=False, feature_version=None):
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
2011-01-24 17:36:03 -04:00
|
|
|
Parse the source into an AST node.
|
|
|
|
Equivalent to compile(source, filename, mode, PyCF_ONLY_AST).
|
2019-01-31 07:40:27 -04:00
|
|
|
Pass type_comments=True to get back type comments where the syntax allows.
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
2019-01-31 07:40:27 -04:00
|
|
|
flags = PyCF_ONLY_AST
|
|
|
|
if type_comments:
|
|
|
|
flags |= PyCF_TYPE_COMMENTS
|
2019-06-11 21:55:28 -03:00
|
|
|
if isinstance(feature_version, tuple):
|
|
|
|
major, minor = feature_version # Should be a 2-tuple.
|
|
|
|
assert major == 3
|
|
|
|
feature_version = minor
|
|
|
|
elif feature_version is None:
|
|
|
|
feature_version = -1
|
|
|
|
# Else it should be an int giving the minor version for 3.x.
|
2019-03-07 16:38:08 -04:00
|
|
|
return compile(source, filename, mode, flags,
|
2019-06-12 11:17:05 -03:00
|
|
|
_feature_version=feature_version)
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
|
|
|
|
|
|
|
|
def literal_eval(node_or_string):
|
|
|
|
"""
|
|
|
|
Safely evaluate an expression node or a string containing a Python
|
|
|
|
expression. The string or node provided may only consist of the following
|
2011-04-17 14:10:27 -03:00
|
|
|
Python literal structures: strings, bytes, numbers, tuples, lists, dicts,
|
|
|
|
sets, booleans, and None.
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
|
|
|
if isinstance(node_or_string, str):
|
|
|
|
node_or_string = parse(node_or_string, mode='eval')
|
|
|
|
if isinstance(node_or_string, Expression):
|
|
|
|
node_or_string = node_or_string.body
|
2018-01-04 05:15:39 -04:00
|
|
|
def _convert_num(node):
|
|
|
|
if isinstance(node, Constant):
|
2018-09-27 11:42:37 -03:00
|
|
|
if type(node.value) in (int, float, complex):
|
2018-01-04 05:15:39 -04:00
|
|
|
return node.value
|
|
|
|
raise ValueError('malformed node or string: ' + repr(node))
|
|
|
|
def _convert_signed_num(node):
|
|
|
|
if isinstance(node, UnaryOp) and isinstance(node.op, (UAdd, USub)):
|
|
|
|
operand = _convert_num(node.operand)
|
|
|
|
if isinstance(node.op, UAdd):
|
|
|
|
return + operand
|
|
|
|
else:
|
|
|
|
return - operand
|
|
|
|
return _convert_num(node)
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
def _convert(node):
|
2016-01-25 19:40:57 -04:00
|
|
|
if isinstance(node, Constant):
|
|
|
|
return node.value
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
elif isinstance(node, Tuple):
|
|
|
|
return tuple(map(_convert, node.elts))
|
|
|
|
elif isinstance(node, List):
|
|
|
|
return list(map(_convert, node.elts))
|
2010-07-11 06:41:21 -03:00
|
|
|
elif isinstance(node, Set):
|
|
|
|
return set(map(_convert, node.elts))
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
elif isinstance(node, Dict):
|
2018-01-04 05:15:39 -04:00
|
|
|
return dict(zip(map(_convert, node.keys),
|
|
|
|
map(_convert, node.values)))
|
2016-01-25 19:40:57 -04:00
|
|
|
elif isinstance(node, BinOp) and isinstance(node.op, (Add, Sub)):
|
2018-01-04 05:15:39 -04:00
|
|
|
left = _convert_signed_num(node.left)
|
|
|
|
right = _convert_num(node.right)
|
|
|
|
if isinstance(left, (int, float)) and isinstance(right, complex):
|
2016-01-25 19:40:57 -04:00
|
|
|
if isinstance(node.op, Add):
|
|
|
|
return left + right
|
|
|
|
else:
|
|
|
|
return left - right
|
2018-01-04 05:15:39 -04:00
|
|
|
return _convert_signed_num(node)
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
return _convert(node_or_string)
|
|
|
|
|
|
|
|
|
|
|
|
def dump(node, annotate_fields=True, include_attributes=False):
|
|
|
|
"""
|
|
|
|
Return a formatted dump of the tree in *node*. This is mainly useful for
|
|
|
|
debugging purposes. The returned string will show the names and the values
|
|
|
|
for fields. This makes the code impossible to evaluate, so if evaluation is
|
|
|
|
wanted *annotate_fields* must be set to False. Attributes such as line
|
Merged revisions 64434-64435,64440-64443,64445,64447-64448,64450,64452,64455,64461,64464,64466,64468 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r64434 | andrew.kuchling | 2008-06-20 18:13:58 -0500 (Fri, 20 Jun 2008) | 1 line
Remove request for e-mail; it's unlikely these classes will be saved
........
r64435 | andrew.kuchling | 2008-06-20 18:14:32 -0500 (Fri, 20 Jun 2008) | 1 line
Grammar fixes
........
r64440 | andrew.kuchling | 2008-06-21 08:29:12 -0500 (Sat, 21 Jun 2008) | 1 line
Docstring typo
........
r64441 | andrew.kuchling | 2008-06-21 08:47:20 -0500 (Sat, 21 Jun 2008) | 1 line
Use repr() for bad input strings; this makes the empty string or binary characters more visible
........
r64442 | andrew.kuchling | 2008-06-21 08:48:38 -0500 (Sat, 21 Jun 2008) | 1 line
Docstring correction
........
r64443 | georg.brandl | 2008-06-21 09:26:19 -0500 (Sat, 21 Jun 2008) | 2 lines
Documentation fix.
........
r64445 | facundo.batista | 2008-06-21 12:30:06 -0500 (Sat, 21 Jun 2008) | 3 lines
Reviewed and updated the documentation. Fixes #3017.
........
r64447 | facundo.batista | 2008-06-21 13:58:04 -0500 (Sat, 21 Jun 2008) | 6 lines
Now a from submitted via POST that also has a query string
will contain both FieldStorage and MiniFieldStorage items.
Fixes #1817.
........
r64448 | facundo.batista | 2008-06-21 14:48:19 -0500 (Sat, 21 Jun 2008) | 5 lines
In the deprecated functions I added an alert to review
specially a section of the subprocess documentation
that helps with the replacing of those functionss.
........
r64450 | georg.brandl | 2008-06-22 04:05:29 -0500 (Sun, 22 Jun 2008) | 2 lines
Turn section references into proper cross-references.
........
r64452 | facundo.batista | 2008-06-22 08:36:20 -0500 (Sun, 22 Jun 2008) | 5 lines
Issue #2722. Now the char buffer to support the path string has
not fixed length, it mallocs memory if needed. As a result, we
don't have a maximum for the getcwd() method.
........
r64455 | facundo.batista | 2008-06-22 10:27:10 -0500 (Sun, 22 Jun 2008) | 4 lines
Issue 3164. Small fix to don't repeat a comparation
without necessity.
........
r64461 | georg.brandl | 2008-06-22 13:11:52 -0500 (Sun, 22 Jun 2008) | 2 lines
#3085: Fix syntax error.
........
r64464 | georg.brandl | 2008-06-22 13:31:54 -0500 (Sun, 22 Jun 2008) | 2 lines
Expand docstrings of sqlite3 functions.
........
r64466 | georg.brandl | 2008-06-22 14:07:59 -0500 (Sun, 22 Jun 2008) | 2 lines
Write out "phi" consistently.
........
r64468 | facundo.batista | 2008-06-22 14:35:24 -0500 (Sun, 22 Jun 2008) | 4 lines
Just returning nothing instead of rising TestSkipped, because
it makes the test fail in the trunk.loewis-sun buildbot.
........
2008-07-02 14:30:14 -03:00
|
|
|
numbers and column offsets are not dumped by default. If this is wanted,
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
*include_attributes* can be set to True.
|
|
|
|
"""
|
|
|
|
def _format(node):
|
|
|
|
if isinstance(node, AST):
|
|
|
|
fields = [(a, _format(b)) for a, b in iter_fields(node)]
|
|
|
|
rv = '%s(%s' % (node.__class__.__name__, ', '.join(
|
|
|
|
('%s=%s' % field for field in fields)
|
|
|
|
if annotate_fields else
|
|
|
|
(b for a, b in fields)
|
|
|
|
))
|
|
|
|
if include_attributes and node._attributes:
|
|
|
|
rv += fields and ', ' or ' '
|
|
|
|
rv += ', '.join('%s=%s' % (a, _format(getattr(node, a)))
|
|
|
|
for a in node._attributes)
|
|
|
|
return rv + ')'
|
|
|
|
elif isinstance(node, list):
|
|
|
|
return '[%s]' % ', '.join(_format(x) for x in node)
|
|
|
|
return repr(node)
|
|
|
|
if not isinstance(node, AST):
|
|
|
|
raise TypeError('expected AST, got %r' % node.__class__.__name__)
|
|
|
|
return _format(node)
|
|
|
|
|
|
|
|
|
|
|
|
def copy_location(new_node, old_node):
|
|
|
|
"""
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
Copy source location (`lineno`, `col_offset`, `end_lineno`, and `end_col_offset`
|
|
|
|
attributes) from *old_node* to *new_node* if possible, and return *new_node*.
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
for attr in 'lineno', 'col_offset', 'end_lineno', 'end_col_offset':
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
if attr in old_node._attributes and attr in new_node._attributes \
|
|
|
|
and hasattr(old_node, attr):
|
|
|
|
setattr(new_node, attr, getattr(old_node, attr))
|
|
|
|
return new_node
|
|
|
|
|
|
|
|
|
|
|
|
def fix_missing_locations(node):
|
|
|
|
"""
|
|
|
|
When you compile a node tree with compile(), the compiler expects lineno and
|
|
|
|
col_offset attributes for every node that supports them. This is rather
|
|
|
|
tedious to fill in for generated nodes, so this helper adds these attributes
|
|
|
|
recursively where not already set, by setting them to the values of the
|
|
|
|
parent node. It works recursively starting at *node*.
|
|
|
|
"""
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
def _fix(node, lineno, col_offset, end_lineno, end_col_offset):
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
if 'lineno' in node._attributes:
|
|
|
|
if not hasattr(node, 'lineno'):
|
|
|
|
node.lineno = lineno
|
|
|
|
else:
|
|
|
|
lineno = node.lineno
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
if 'end_lineno' in node._attributes:
|
|
|
|
if not hasattr(node, 'end_lineno'):
|
|
|
|
node.end_lineno = end_lineno
|
|
|
|
else:
|
|
|
|
end_lineno = node.end_lineno
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
if 'col_offset' in node._attributes:
|
|
|
|
if not hasattr(node, 'col_offset'):
|
|
|
|
node.col_offset = col_offset
|
|
|
|
else:
|
|
|
|
col_offset = node.col_offset
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
if 'end_col_offset' in node._attributes:
|
|
|
|
if not hasattr(node, 'end_col_offset'):
|
|
|
|
node.end_col_offset = end_col_offset
|
|
|
|
else:
|
|
|
|
end_col_offset = node.end_col_offset
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
for child in iter_child_nodes(node):
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
_fix(child, lineno, col_offset, end_lineno, end_col_offset)
|
|
|
|
_fix(node, 1, 0, 1, 0)
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
return node
|
|
|
|
|
|
|
|
|
|
|
|
def increment_lineno(node, n=1):
|
|
|
|
"""
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
Increment the line number and end 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.
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
|
|
|
for child in walk(node):
|
|
|
|
if 'lineno' in child._attributes:
|
|
|
|
child.lineno = getattr(child, 'lineno', 0) + n
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
if 'end_lineno' in child._attributes:
|
|
|
|
child.end_lineno = getattr(child, 'end_lineno', 0) + n
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
return node
|
|
|
|
|
|
|
|
|
|
|
|
def iter_fields(node):
|
|
|
|
"""
|
|
|
|
Yield a tuple of ``(fieldname, value)`` for each field in ``node._fields``
|
|
|
|
that is present on *node*.
|
|
|
|
"""
|
|
|
|
for field in node._fields:
|
|
|
|
try:
|
|
|
|
yield field, getattr(node, field)
|
|
|
|
except AttributeError:
|
|
|
|
pass
|
|
|
|
|
|
|
|
|
|
|
|
def iter_child_nodes(node):
|
|
|
|
"""
|
|
|
|
Yield all direct child nodes of *node*, that is, all fields that are nodes
|
|
|
|
and all items of fields that are lists of nodes.
|
|
|
|
"""
|
|
|
|
for name, field in iter_fields(node):
|
|
|
|
if isinstance(field, AST):
|
|
|
|
yield field
|
|
|
|
elif isinstance(field, list):
|
|
|
|
for item in field:
|
|
|
|
if isinstance(item, AST):
|
|
|
|
yield item
|
|
|
|
|
|
|
|
|
|
|
|
def get_docstring(node, clean=True):
|
|
|
|
"""
|
|
|
|
Return the docstring for the given node or None if no docstring can
|
|
|
|
be found. If the node provided does not have docstrings a TypeError
|
|
|
|
will be raised.
|
2017-02-24 02:44:19 -04:00
|
|
|
|
|
|
|
If *clean* is `True`, all tabs are expanded to spaces and any whitespace
|
|
|
|
that can be uniformly removed from the second line onwards is removed.
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
2015-07-23 02:54:35 -03:00
|
|
|
if not isinstance(node, (AsyncFunctionDef, FunctionDef, ClassDef, Module)):
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
raise TypeError("%r can't have docstrings" % node.__class__.__name__)
|
2018-06-15 05:05:15 -03:00
|
|
|
if not(node.body and isinstance(node.body[0], Expr)):
|
2018-05-29 06:04:55 -03:00
|
|
|
return None
|
|
|
|
node = node.body[0].value
|
|
|
|
if isinstance(node, Str):
|
|
|
|
text = node.s
|
|
|
|
elif isinstance(node, Constant) and isinstance(node.value, str):
|
|
|
|
text = node.value
|
|
|
|
else:
|
|
|
|
return None
|
2018-06-15 05:05:15 -03:00
|
|
|
if clean:
|
2016-01-25 19:40:57 -04:00
|
|
|
import inspect
|
|
|
|
text = inspect.cleandoc(text)
|
|
|
|
return text
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
|
|
|
|
|
bpo-33416: Add end positions to Python AST (GH-11605)
The majority of this PR is tediously passing `end_lineno` and `end_col_offset` everywhere. Here are non-trivial points:
* It is not possible to reconstruct end positions in AST "on the fly", some information is lost after an AST node is constructed, so we need two more attributes for every AST node `end_lineno` and `end_col_offset`.
* I add end position information to both CST and AST. Although it may be technically possible to avoid adding end positions to CST, the code becomes more cumbersome and less efficient.
* Since the end position is not known for non-leaf CST nodes while the next token is added, this requires a bit of extra care (see `_PyNode_FinalizeEndPos`). Unless I made some mistake, the algorithm should be linear.
* For statements, I "trim" the end position of suites to not include the terminal newlines and dedent (this seems to be what people would expect), for example in
```python
class C:
pass
pass
```
the end line and end column for the class definition is (2, 8).
* For `end_col_offset` I use the common Python convention for indexing, for example for `pass` the `end_col_offset` is 4 (not 3), so that `[0:4]` gives one the source code that corresponds to the node.
* I added a helper function `ast.get_source_segment()`, to get source text segment corresponding to a given AST node. It is also useful for testing.
An (inevitable) downside of this PR is that AST now takes almost 25% more memory. I think however it is probably justified by the benefits.
2019-01-22 07:18:22 -04:00
|
|
|
def _splitlines_no_ff(source):
|
|
|
|
"""Split a string into lines ignoring form feed and other chars.
|
|
|
|
|
|
|
|
This mimics how the Python parser splits source code.
|
|
|
|
"""
|
|
|
|
idx = 0
|
|
|
|
lines = []
|
|
|
|
next_line = ''
|
|
|
|
while idx < len(source):
|
|
|
|
c = source[idx]
|
|
|
|
next_line += c
|
|
|
|
idx += 1
|
|
|
|
# Keep \r\n together
|
|
|
|
if c == '\r' and idx < len(source) and source[idx] == '\n':
|
|
|
|
next_line += '\n'
|
|
|
|
idx += 1
|
|
|
|
if c in '\r\n':
|
|
|
|
lines.append(next_line)
|
|
|
|
next_line = ''
|
|
|
|
|
|
|
|
if next_line:
|
|
|
|
lines.append(next_line)
|
|
|
|
return lines
|
|
|
|
|
|
|
|
|
|
|
|
def _pad_whitespace(source):
|
|
|
|
"""Replace all chars except '\f\t' in a line with spaces."""
|
|
|
|
result = ''
|
|
|
|
for c in source:
|
|
|
|
if c in '\f\t':
|
|
|
|
result += c
|
|
|
|
else:
|
|
|
|
result += ' '
|
|
|
|
return result
|
|
|
|
|
|
|
|
|
|
|
|
def get_source_segment(source, node, *, padded=False):
|
|
|
|
"""Get source code segment of the *source* that generated *node*.
|
|
|
|
|
|
|
|
If some location information (`lineno`, `end_lineno`, `col_offset`,
|
|
|
|
or `end_col_offset`) is missing, return None.
|
|
|
|
|
|
|
|
If *padded* is `True`, the first line of a multi-line statement will
|
|
|
|
be padded with spaces to match its original position.
|
|
|
|
"""
|
|
|
|
try:
|
|
|
|
lineno = node.lineno - 1
|
|
|
|
end_lineno = node.end_lineno - 1
|
|
|
|
col_offset = node.col_offset
|
|
|
|
end_col_offset = node.end_col_offset
|
|
|
|
except AttributeError:
|
|
|
|
return None
|
|
|
|
|
|
|
|
lines = _splitlines_no_ff(source)
|
|
|
|
if end_lineno == lineno:
|
|
|
|
return lines[lineno].encode()[col_offset:end_col_offset].decode()
|
|
|
|
|
|
|
|
if padded:
|
|
|
|
padding = _pad_whitespace(lines[lineno].encode()[:col_offset].decode())
|
|
|
|
else:
|
|
|
|
padding = ''
|
|
|
|
|
|
|
|
first = padding + lines[lineno].encode()[col_offset:].decode()
|
|
|
|
last = lines[end_lineno].encode()[:end_col_offset].decode()
|
|
|
|
lines = lines[lineno+1:end_lineno]
|
|
|
|
|
|
|
|
lines.insert(0, first)
|
|
|
|
lines.append(last)
|
|
|
|
return ''.join(lines)
|
|
|
|
|
|
|
|
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
def walk(node):
|
|
|
|
"""
|
2011-01-09 03:38:51 -04:00
|
|
|
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.
|
Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r63829 | mark.summerfield | 2008-05-31 15:05:34 +0200 (Sat, 31 May 2008) | 4 lines
Added a note to [] that special forms & special chars lose their meaning
and backrefs can't be used inside []
........
r63830 | georg.brandl | 2008-05-31 16:40:09 +0200 (Sat, 31 May 2008) | 2 lines
#3010: clarification about stdin/use_rawinput.
........
r63831 | georg.brandl | 2008-05-31 16:45:55 +0200 (Sat, 31 May 2008) | 2 lines
#3005: add explaining sentence to easydialogs docs.
........
r63858 | georg.brandl | 2008-06-01 18:41:31 +0200 (Sun, 01 Jun 2008) | 2 lines
Add plain text make target.
........
r63865 | georg.brandl | 2008-06-01 21:24:36 +0200 (Sun, 01 Jun 2008) | 2 lines
Spaces vs. tabs.
........
r63879 | gregory.p.smith | 2008-06-02 00:57:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
........
r63882 | gregory.p.smith | 2008-06-02 01:48:47 +0200 (Mon, 02 Jun 2008) | 3 lines
Adds a Thread.getIdent() method to provide the _get_ident() value for
any given threading.Thread object. feature request issue 2871.
........
r63948 | alexandre.vassalotti | 2008-06-04 22:41:44 +0200 (Wed, 04 Jun 2008) | 2 lines
Fixed complex.__getnewargs__() to not emit another complex object.
........
r63970 | andrew.kuchling | 2008-06-06 01:33:54 +0200 (Fri, 06 Jun 2008) | 1 line
Document 'utc' parameter
........
r63971 | andrew.kuchling | 2008-06-06 01:35:31 +0200 (Fri, 06 Jun 2008) | 1 line
Add various items
........
r63972 | andrew.kuchling | 2008-06-06 01:35:48 +0200 (Fri, 06 Jun 2008) | 1 line
Grammar fix
........
r63976 | georg.brandl | 2008-06-06 09:34:50 +0200 (Fri, 06 Jun 2008) | 2 lines
Markup fix.
........
r63989 | thomas.heller | 2008-06-06 20:42:11 +0200 (Fri, 06 Jun 2008) | 2 lines
Add a reminder for the maintainer of whatsnew.
........
r64014 | georg.brandl | 2008-06-07 17:59:10 +0200 (Sat, 07 Jun 2008) | 3 lines
Factor out docstring dedenting from inspect.getdoc() into inspect.cleandoc()
to ease standalone use of the algorithm.
........
r64015 | georg.brandl | 2008-06-07 18:04:01 +0200 (Sat, 07 Jun 2008) | 2 lines
Revert unwanted changes.
........
r64021 | georg.brandl | 2008-06-07 20:16:12 +0200 (Sat, 07 Jun 2008) | 2 lines
X-ref to numbers module.
........
r64022 | georg.brandl | 2008-06-07 20:17:37 +0200 (Sat, 07 Jun 2008) | 3 lines
Document the "st" API, to avoid confusion with the "new" AST.
Add a note about using the new AST module.
........
r64063 | martin.v.loewis | 2008-06-10 07:03:35 +0200 (Tue, 10 Jun 2008) | 2 lines
Add Gregor Lingl.
........
r64064 | georg.brandl | 2008-06-10 09:45:28 +0200 (Tue, 10 Jun 2008) | 2 lines
Add the "ast" module, containing helpers to ease use of the "_ast" classes.
........
r64065 | raymond.hettinger | 2008-06-10 09:57:15 +0200 (Tue, 10 Jun 2008) | 1 line
Add Arnaud for his efforts on multi-arg set operations.
........
r64067 | georg.brandl | 2008-06-10 14:46:39 +0200 (Tue, 10 Jun 2008) | 2 lines
#2536: fix itertools.permutations and itertools.combinations docstrings.
........
2008-06-10 13:37:50 -03:00
|
|
|
"""
|
|
|
|
from collections import deque
|
|
|
|
todo = deque([node])
|
|
|
|
while todo:
|
|
|
|
node = todo.popleft()
|
|
|
|
todo.extend(iter_child_nodes(node))
|
|
|
|
yield node
|
|
|
|
|
|
|
|
|
|
|
|
class NodeVisitor(object):
|
|
|
|
"""
|
|
|
|
A node visitor base class that walks the abstract syntax tree and calls a
|
|
|
|
visitor function for every node found. This function may return a value
|
|
|
|
which is forwarded by the `visit` method.
|
|
|
|
|
|
|
|
This class is meant to be subclassed, with the subclass adding visitor
|
|
|
|
methods.
|
|
|
|
|
|
|
|
Per default the visitor functions for the nodes are ``'visit_'`` +
|
|
|
|
class name of the node. So a `TryFinally` node visit function would
|
|
|
|
be `visit_TryFinally`. This behavior can be changed by overriding
|
|
|
|
the `visit` method. If no visitor function exists for a node
|
|
|
|
(return value `None`) the `generic_visit` visitor is used instead.
|
|
|
|
|
|
|
|
Don't use the `NodeVisitor` if you want to apply changes to nodes during
|
|
|
|
traversing. For this a special visitor exists (`NodeTransformer`) that
|
|
|
|
allows modifications.
|
|
|
|
"""
|
|
|
|
|
|
|
|
def visit(self, node):
|
|
|
|
"""Visit a node."""
|
|
|
|
method = 'visit_' + node.__class__.__name__
|
|
|
|
visitor = getattr(self, method, self.generic_visit)
|
|
|
|
return visitor(node)
|
|
|
|
|
|
|
|
def generic_visit(self, node):
|
|
|
|
"""Called if no explicit visitor function exists for a node."""
|
|
|
|
for field, value in iter_fields(node):
|
|
|
|
if isinstance(value, list):
|
|
|
|
for item in value:
|
|
|
|
if isinstance(item, AST):
|
|
|
|
self.visit(item)
|
|
|
|
elif isinstance(value, AST):
|
|
|
|
self.visit(value)
|
|
|
|
|
|
|
|
|
|
|
|
class NodeTransformer(NodeVisitor):
|
|
|
|
"""
|
|
|
|
A :class:`NodeVisitor` subclass that walks the abstract syntax tree and
|
|
|
|
allows modification of nodes.
|
|
|
|
|
|
|
|
The `NodeTransformer` will walk the AST and use the return value of the
|
|
|
|
visitor methods to replace or remove the old node. If the return value of
|
|
|
|
the visitor method is ``None``, the node will be removed from its location,
|
|
|
|
otherwise it is replaced with the return value. The return value may be the
|
|
|
|
original node in which case no replacement takes place.
|
|
|
|
|
|
|
|
Here is an example transformer that rewrites all occurrences of name lookups
|
|
|
|
(``foo``) to ``data['foo']``::
|
|
|
|
|
|
|
|
class RewriteName(NodeTransformer):
|
|
|
|
|
|
|
|
def visit_Name(self, node):
|
|
|
|
return copy_location(Subscript(
|
|
|
|
value=Name(id='data', ctx=Load()),
|
|
|
|
slice=Index(value=Str(s=node.id)),
|
|
|
|
ctx=node.ctx
|
|
|
|
), node)
|
|
|
|
|
|
|
|
Keep in mind that if the node you're operating on has child nodes you must
|
|
|
|
either transform the child nodes yourself or call the :meth:`generic_visit`
|
|
|
|
method for the node first.
|
|
|
|
|
|
|
|
For nodes that were part of a collection of statements (that applies to all
|
|
|
|
statement nodes), the visitor may also return a list of nodes rather than
|
|
|
|
just a single node.
|
|
|
|
|
|
|
|
Usually you use the transformer like this::
|
|
|
|
|
|
|
|
node = YourTransformer().visit(node)
|
|
|
|
"""
|
|
|
|
|
|
|
|
def generic_visit(self, node):
|
|
|
|
for field, old_value in iter_fields(node):
|
|
|
|
if isinstance(old_value, list):
|
|
|
|
new_values = []
|
|
|
|
for value in old_value:
|
|
|
|
if isinstance(value, AST):
|
|
|
|
value = self.visit(value)
|
|
|
|
if value is None:
|
|
|
|
continue
|
|
|
|
elif not isinstance(value, AST):
|
|
|
|
new_values.extend(value)
|
|
|
|
continue
|
|
|
|
new_values.append(value)
|
|
|
|
old_value[:] = new_values
|
|
|
|
elif isinstance(old_value, AST):
|
|
|
|
new_node = self.visit(old_value)
|
|
|
|
if new_node is None:
|
|
|
|
delattr(node, field)
|
|
|
|
else:
|
|
|
|
setattr(node, field, new_node)
|
|
|
|
return node
|
2018-09-27 11:42:37 -03:00
|
|
|
|
|
|
|
|
|
|
|
# The following code is for backward compatibility.
|
|
|
|
# It will be removed in future.
|
|
|
|
|
|
|
|
def _getter(self):
|
|
|
|
return self.value
|
|
|
|
|
|
|
|
def _setter(self, value):
|
|
|
|
self.value = value
|
|
|
|
|
|
|
|
Constant.n = property(_getter, _setter)
|
|
|
|
Constant.s = property(_getter, _setter)
|
|
|
|
|
|
|
|
class _ABC(type):
|
|
|
|
|
|
|
|
def __instancecheck__(cls, inst):
|
|
|
|
if not isinstance(inst, Constant):
|
|
|
|
return False
|
|
|
|
if cls in _const_types:
|
|
|
|
try:
|
|
|
|
value = inst.value
|
|
|
|
except AttributeError:
|
|
|
|
return False
|
|
|
|
else:
|
2019-01-18 15:30:28 -04:00
|
|
|
return (
|
|
|
|
isinstance(value, _const_types[cls]) and
|
|
|
|
not isinstance(value, _const_types_not.get(cls, ()))
|
|
|
|
)
|
2018-09-27 11:42:37 -03:00
|
|
|
return type.__instancecheck__(cls, inst)
|
|
|
|
|
|
|
|
def _new(cls, *args, **kwargs):
|
|
|
|
if cls in _const_types:
|
|
|
|
return Constant(*args, **kwargs)
|
|
|
|
return Constant.__new__(cls, *args, **kwargs)
|
|
|
|
|
|
|
|
class Num(Constant, metaclass=_ABC):
|
|
|
|
_fields = ('n',)
|
|
|
|
__new__ = _new
|
|
|
|
|
|
|
|
class Str(Constant, metaclass=_ABC):
|
|
|
|
_fields = ('s',)
|
|
|
|
__new__ = _new
|
|
|
|
|
|
|
|
class Bytes(Constant, metaclass=_ABC):
|
|
|
|
_fields = ('s',)
|
|
|
|
__new__ = _new
|
|
|
|
|
|
|
|
class NameConstant(Constant, metaclass=_ABC):
|
|
|
|
__new__ = _new
|
|
|
|
|
|
|
|
class Ellipsis(Constant, metaclass=_ABC):
|
|
|
|
_fields = ()
|
|
|
|
|
|
|
|
def __new__(cls, *args, **kwargs):
|
|
|
|
if cls is Ellipsis:
|
|
|
|
return Constant(..., *args, **kwargs)
|
|
|
|
return Constant.__new__(cls, *args, **kwargs)
|
|
|
|
|
|
|
|
_const_types = {
|
|
|
|
Num: (int, float, complex),
|
|
|
|
Str: (str,),
|
|
|
|
Bytes: (bytes,),
|
|
|
|
NameConstant: (type(None), bool),
|
|
|
|
Ellipsis: (type(...),),
|
|
|
|
}
|
2019-01-18 15:30:28 -04:00
|
|
|
_const_types_not = {
|
|
|
|
Num: (bool,),
|
|
|
|
}
|