Incorrect col_offset for decorators with zero arguments (empty parentheses)

[alexmojaki]

BPO	38535
Nosy	@serhiy-storchaka, @miss-islington, @alexmojaki
PRs	bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. #16861 [3.8] bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861) #16929 [3.7] bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861). #16930 [2.7] bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861). #16931
Files	decorator_python_bug.py

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2019-10-26.15:44:57.173>
created_at = <Date 2019-10-20.08:21:37.752>
labels = ['interpreter-core', '3.8', 'type-bug', '3.7', '3.9']
title = 'Incorrect col_offset for decorators with zero arguments (empty parentheses)'
updated_at = <Date 2019-10-26.15:44:57.172>
user = 'https://github.com/alexmojaki'

bugs.python.org fields:

activity = <Date 2019-10-26.15:44:57.172>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2019-10-26.15:44:57.173>
closer = 'serhiy.storchaka'
components = ['Interpreter Core']
creation = <Date 2019-10-20.08:21:37.752>
creator = 'alexmojaki'
dependencies = []
files = ['48669']
hgrepos = []
issue_num = 38535
keywords = ['patch']
message_count = 6.0
messages = ['354987', '354988', '355414', '355415', '355416', '355417']
nosy_count = 3.0
nosy_names = ['serhiy.storchaka', 'miss-islington', 'alexmojaki']
pr_nums = ['16861', '16929', '16930', '16931']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue38535'
versions = ['Python 2.7', 'Python 3.7', 'Python 3.8', 'Python 3.9']

[alexmojaki]

In a decorator such as @a(), the ast.Call node has a col_offset starting from the @ symbol. This doesn't happen for decorators without arguments (e.g. @a) or with some arguments (e.g. @a(x)).

[alexmojaki]

I assume this also happens on 3.9, it's just a bit hard for me to test that now.

[serhiy-storchaka]

New changeset 26ae9f6 by Serhiy Storchaka in branch 'master':
bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861)
26ae9f6

[miss-islington]

New changeset ba3a566 by Miss Skeleton (bot) in branch '3.8':
bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861)
ba3a566

[serhiy-storchaka]

New changeset 91fc9cf by Serhiy Storchaka in branch '3.7':
[3.7] bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861). (GH-16930)
91fc9cf

[serhiy-storchaka]

New changeset 493fef6 by Serhiy Storchaka in branch '2.7':
[2.7] bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861). (GH-16931)
493fef6