Compute matches when text contains a dot. Assuming the text is of the form NAME.NAME....[NAME], and is evaluable in self.namespace, it will be evaluated and its attributes (as revealed by dir()) are used as possible completions. (For class instances, class members a
(self, text)
| 138 | return matches |
| 139 | |
| 140 | def attr_matches(self, text): |
| 141 | """Compute matches when text contains a dot. |
| 142 | |
| 143 | Assuming the text is of the form NAME.NAME....[NAME], and is |
| 144 | evaluable in self.namespace, it will be evaluated and its attributes |
| 145 | (as revealed by dir()) are used as possible completions. (For class |
| 146 | instances, class members are also considered.) |
| 147 | |
| 148 | WARNING: this can still invoke arbitrary C code, if an object |
| 149 | with a __getattr__ hook is evaluated. |
| 150 | |
| 151 | """ |
| 152 | m = re.match(r"(\w+(\.\w+)*)\.(\w*)", text) |
| 153 | if not m: |
| 154 | return [] |
| 155 | expr, attr = m.group(1, 3) |
| 156 | try: |
| 157 | thisobject = eval(expr, self.namespace) |
| 158 | except Exception: |
| 159 | return [] |
| 160 | |
| 161 | # get the content of the object, except __builtins__ |
| 162 | words = set(dir(thisobject)) |
| 163 | words.discard("__builtins__") |
| 164 | |
| 165 | if hasattr(thisobject, '__class__'): |
| 166 | words.add('__class__') |
| 167 | words.update(get_class_members(thisobject.__class__)) |
| 168 | matches = [] |
| 169 | n = len(attr) |
| 170 | if attr == '': |
| 171 | noprefix = '_' |
| 172 | elif attr == '_': |
| 173 | noprefix = '__' |
| 174 | else: |
| 175 | noprefix = None |
| 176 | while True: |
| 177 | for word in words: |
| 178 | if (word[:n] == attr and |
| 179 | not (noprefix and word[:n+1] == noprefix)): |
| 180 | match = "%s.%s" % (expr, word) |
| 181 | if isinstance(getattr(type(thisobject), word, None), |
| 182 | property): |
| 183 | # bpo-44752: thisobject.word is a method decorated by |
| 184 | # `@property`. What follows applies a postfix if |
| 185 | # thisobject.word is callable, but know we know that |
| 186 | # this is not callable (because it is a property). |
| 187 | # Also, getattr(thisobject, word) will evaluate the |
| 188 | # property method, which is not desirable. |
| 189 | matches.append(match) |
| 190 | continue |
| 191 | if (value := getattr(thisobject, word, None)) is not None: |
| 192 | matches.append(self._callable_postfix(value, match)) |
| 193 | else: |
| 194 | matches.append(match) |
| 195 | if matches or not noprefix: |
| 196 | break |
| 197 | if noprefix == '_': |