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112 lines
3.6 KiB
Python
112 lines
3.6 KiB
Python
"""
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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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# Add a quote only if it's not already there.
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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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