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""" |
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This module is here for string completions. This means mostly stuff where |
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strings are returned, like `foo = dict(bar=3); foo["ba` would complete to |
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`"bar"]`. |
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It however does the same for numbers. The difference between string completions |
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and other completions is mostly that this module doesn't return defined |
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names in a module, but pretty much an arbitrary string. |
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""" |
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import re |
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from jedi.inference.names import AbstractArbitraryName |
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from jedi.inference.helpers import infer_call_of_leaf |
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from jedi.api.classes import Completion |
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from jedi.parser_utils import cut_value_at_position |
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_sentinel = object() |
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class StringName(AbstractArbitraryName): |
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api_type = 'string' |
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is_value_name = False |
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def complete_dict(module_context, code_lines, leaf, position, string, fuzzy): |
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bracket_leaf = leaf |
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if bracket_leaf != '[': |
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bracket_leaf = leaf.get_previous_leaf() |
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cut_end_quote = '' |
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if string: |
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cut_end_quote = get_quote_ending(string, code_lines, position, invert_result=True) |
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if bracket_leaf == '[': |
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if string is None and leaf is not bracket_leaf: |
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string = cut_value_at_position(leaf, position) |
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context = module_context.create_context(bracket_leaf) |
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before_node = before_bracket_leaf = bracket_leaf.get_previous_leaf() |
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if before_node in (')', ']', '}'): |
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before_node = before_node.parent |
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if before_node.type in ('atom', 'trailer', 'name'): |
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values = infer_call_of_leaf(context, before_bracket_leaf) |
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return list(_completions_for_dicts( |
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module_context.inference_state, |
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values, |
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'' if string is None else string, |
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cut_end_quote, |
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fuzzy=fuzzy, |
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)) |
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return [] |
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def _completions_for_dicts(inference_state, dicts, literal_string, cut_end_quote, fuzzy): |
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for dict_key in sorted(_get_python_keys(dicts), key=lambda x: repr(x)): |
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dict_key_str = _create_repr_string(literal_string, dict_key) |
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if dict_key_str.startswith(literal_string): |
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name = StringName(inference_state, dict_key_str[:-len(cut_end_quote) or None]) |
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yield Completion( |
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inference_state, |
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name, |
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stack=None, |
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like_name_length=len(literal_string), |
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is_fuzzy=fuzzy |
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) |
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def _create_repr_string(literal_string, dict_key): |
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if not isinstance(dict_key, (str, bytes)) or not literal_string: |
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return repr(dict_key) |
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r = repr(dict_key) |
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prefix, quote = _get_string_prefix_and_quote(literal_string) |
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if quote is None: |
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return r |
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if quote == r[0]: |
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return prefix + r |
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return prefix + quote + r[1:-1] + quote |
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def _get_python_keys(dicts): |
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for dct in dicts: |
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if dct.array_type == 'dict': |
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for key in dct.get_key_values(): |
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dict_key = key.get_safe_value(default=_sentinel) |
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if dict_key is not _sentinel: |
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yield dict_key |
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def _get_string_prefix_and_quote(string): |
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match = re.match(r'(\w*)("""|\'{3}|"|\')', string) |
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if match is None: |
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return None, None |
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return match.group(1), match.group(2) |
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def _matches_quote_at_position(code_lines, quote, position): |
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string = code_lines[position[0] - 1][position[1]:position[1] + len(quote)] |
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return string == quote |
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def get_quote_ending(string, code_lines, position, invert_result=False): |
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_, quote = _get_string_prefix_and_quote(string) |
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if quote is None: |
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return '' |
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if _matches_quote_at_position(code_lines, quote, position) != invert_result: |
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return '' |
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return quote |
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