-
Notifications
You must be signed in to change notification settings - Fork 187
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
10def44
commit e46cddd
Showing
5 changed files
with
178 additions
and
127 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| # Copyright 2017-2020 Palantir Technologies, Inc. | ||
| # Copyright 2021- Python Language Server Contributors. | ||
|
|
||
| from collections import defaultdict | ||
| import logging | ||
| from time import time | ||
|
|
||
| from jedi.api.classes import Completion | ||
|
|
||
| from pylsp import lsp | ||
|
|
||
|
|
||
| log = logging.getLogger(__name__) | ||
|
|
||
|
|
||
| # ---- Base class | ||
| # ----------------------------------------------------------------------------- | ||
| class Resolver: | ||
|
|
||
| def __init__(self, callback, resolve_on_error, time_to_live=60 * 30): | ||
| self.callback = callback | ||
| self.resolve_on_error = resolve_on_error | ||
| self._cache = {} | ||
| self._time_to_live = time_to_live | ||
| self._cache_ttl = defaultdict(set) | ||
| self._clear_every = 2 | ||
| # see https://github.com/davidhalter/jedi/blob/master/jedi/inference/helpers.py#L194-L202 | ||
| self._cached_modules = {'pandas', 'numpy', 'tensorflow', 'matplotlib'} | ||
|
|
||
| @property | ||
| def cached_modules(self): | ||
| return self._cached_modules | ||
|
|
||
| @cached_modules.setter | ||
| def cached_modules(self, new_value): | ||
| self._cached_modules = set(new_value) | ||
|
|
||
| def clear_outdated(self): | ||
| now = self.time_key() | ||
| to_clear = [ | ||
| timestamp | ||
| for timestamp in self._cache_ttl | ||
| if timestamp < now | ||
| ] | ||
| for time_key in to_clear: | ||
| for key in self._cache_ttl[time_key]: | ||
| del self._cache[key] | ||
| del self._cache_ttl[time_key] | ||
|
|
||
| def time_key(self): | ||
| return int(time() / self._time_to_live) | ||
|
|
||
| def get_or_create(self, completion: Completion): | ||
| if not completion.full_name: | ||
| use_cache = False | ||
| else: | ||
| module_parts = completion.full_name.split('.') | ||
| use_cache = module_parts and module_parts[0] in self._cached_modules | ||
|
|
||
| if use_cache: | ||
| key = self._create_completion_id(completion) | ||
| if key not in self._cache: | ||
| if self.time_key() % self._clear_every == 0: | ||
| self.clear_outdated() | ||
|
|
||
| self._cache[key] = self.resolve(completion) | ||
| self._cache_ttl[self.time_key()].add(key) | ||
| return self._cache[key] | ||
|
|
||
| return self.resolve(completion) | ||
|
|
||
| def _create_completion_id(self, completion: Completion): | ||
| return ( | ||
| completion.full_name, completion.module_path, | ||
| completion.line, completion.column, | ||
| self.time_key() | ||
| ) | ||
|
|
||
| def resolve(self, completion): | ||
| try: | ||
| sig = completion.get_signatures() | ||
| return self.callback(completion, sig) | ||
| except Exception as e: # pylint: disable=broad-except | ||
| log.warning( | ||
| 'Something went wrong when resolving label for {completion}: {e}', | ||
| completion=completion, e=e | ||
| ) | ||
| return self.resolve_on_error | ||
|
|
||
|
|
||
| # ---- Label resolver | ||
| # ----------------------------------------------------------------------------- | ||
| def format_label(completion, sig): | ||
| if sig and completion.type in ('function', 'method'): | ||
| params = ', '.join(param.name for param in sig[0].params) | ||
| label = '{}({})'.format(completion.name, params) | ||
| return label | ||
| return completion.name | ||
|
|
||
|
|
||
| LABEL_RESOLVER = Resolver(callback=format_label, resolve_on_error='') | ||
|
|
||
|
|
||
| # ---- Snippets resolver | ||
| # ----------------------------------------------------------------------------- | ||
| def format_snippet(completion, sig): | ||
| if not sig: | ||
| return {} | ||
|
|
||
| snippet_completion = {} | ||
|
|
||
| positional_args = [param for param in sig[0].params | ||
| if '=' not in param.description and | ||
| param.name not in {'/', '*'}] | ||
|
|
||
| if len(positional_args) > 1: | ||
| # For completions with params, we can generate a snippet instead | ||
| snippet_completion['insertTextFormat'] = lsp.InsertTextFormat.Snippet | ||
| snippet = completion.name + '(' | ||
| for i, param in enumerate(positional_args): | ||
| snippet += '${%s:%s}' % (i + 1, param.name) | ||
| if i < len(positional_args) - 1: | ||
| snippet += ', ' | ||
| snippet += ')$0' | ||
| snippet_completion['insertText'] = snippet | ||
| elif len(positional_args) == 1: | ||
| snippet_completion['insertTextFormat'] = lsp.InsertTextFormat.Snippet | ||
| snippet_completion['insertText'] = completion.name + '($0)' | ||
| else: | ||
| snippet_completion['insertText'] = completion.name + '()' | ||
|
|
||
| return snippet_completion | ||
|
|
||
|
|
||
| SNIPPET_RESOLVER = Resolver(callback=format_snippet, resolve_on_error={}) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.