File: attrib_fromdict.py

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (41 lines) | stat: -rw-r--r-- 1,209 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
"""
Objective-C runtime wrapper for use by LLDB Python formatters

Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
See https://llvm.org/LICENSE.txt for license information.
SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
"""


class AttributesDictionary:
    def __init__(self, allow_reset=True):
        # need to do it this way to prevent endless recursion
        self.__dict__["_dictionary"] = {}
        self.__dict__["_allow_reset"] = allow_reset

    def __getattr__(self, name):
        if not self._check_exists(name):
            return None
        value = self._dictionary[name]
        return value

    def _set_impl(self, name, value):
        self._dictionary[name] = value

    def _check_exists(self, name):
        return name in self._dictionary

    def __setattr__(self, name, value):
        if self._allow_reset:
            self._set_impl(name, value)
        else:
            self.set_if_necessary(name, value)

    def set_if_necessary(self, name, value):
        if not self._check_exists(name):
            self._set_impl(name, value)
            return True
        return False

    def __len__(self):
        return len(self._dictionary)