Start working on uniting parts of code of file path/dict completion

jedi/api/completion.py

@@ -10,7 +10,7 @@ from jedi import settings
 from jedi.api import classes
 from jedi.api import helpers
 from jedi.api import keywords
-from jedi.api.dicts import completions_for_dicts
+from jedi.api.strings import completions_for_dicts
 from jedi.api.file_name import file_name_completions
 from jedi.inference import imports
 from jedi.inference.helpers import infer_call_of_leaf, parse_dotted_names
@@ -93,7 +93,7 @@ class Completion:
         if string is None:
             string = ''
         bracket_leaf = leaf
-        if bracket_leaf.type == 'number':
+        if bracket_leaf.type in ('number', 'error_leaf'):
             string = bracket_leaf.value
             bracket_leaf = bracket_leaf.get_previous_leaf()
 
@@ -113,6 +113,8 @@ class Completion:
             ))
             if completions:
                 return completions
+        if string is not None:
+            return prefixed_completions
 
         completion_names = self._get_context_completions(leaf)
 

jedi/api/dicts.py

@@ -1,26 +0,0 @@
-from jedi.inference.names import AbstractArbitraryName
-from jedi.api.classes import Completion
-
-_sentinel = object()
-
-
-class F(AbstractArbitraryName):
-    api_type = u'path'
-    is_value_name = False
-
-
-def completions_for_dicts(inference_state, dicts, literal_string):
-    for dict_key in sorted(_get_python_keys(dicts)):
-        dict_key_str = repr(dict_key)
-        if dict_key_str.startswith(literal_string):
-            name = F(inference_state, dict_key_str[len(literal_string):])
-            yield Completion(inference_state, name, stack=None, like_name_length=0)
-
-
-def _get_python_keys(dicts):
-    for dct in dicts:
-        if dct.array_type == 'dict':
-            for key in dct.get_key_values():
-                dict_key = key.get_safe_value(default=_sentinel)
-                if dict_key is not _sentinel:
-                    yield dict_key

jedi/api/file_name.py

@@ -1,10 +1,13 @@
 import os
 
 from jedi._compatibility import FileNotFoundError, force_unicode, scandir
-from jedi.inference.names import AbstractArbitraryName
 from jedi.api import classes
+from jedi.api.strings import StringName, get_quote_ending
 from jedi.inference.helpers import get_str_or_none
-from jedi.parser_utils import get_string_quote
+
+
+class PathName(StringName):
+    api_type = u'path'
 
 
 def file_name_completions(inference_state, module_context, start_leaf, string,
@@ -39,22 +42,13 @@ def file_name_completions(inference_state, module_context, start_leaf, string,
         name = entry.name
         if name.startswith(must_start_with):
             if is_in_os_path_join or not entry.is_dir():
-                if start_leaf.type == 'string':
-                    quote = get_string_quote(start_leaf)
-                else:
-                    assert start_leaf.type == 'error_leaf'
-                    quote = start_leaf.value
-                potential_other_quote = \
-                    code_lines[position[0] - 1][position[1]:position[1] + len(quote)]
-                # Add a quote if it's not already there.
-                if quote != potential_other_quote:
-                    name += quote
+                name += get_quote_ending(start_leaf, code_lines, position)
             else:
                 name += os.path.sep
 
             yield classes.Completion(
                 inference_state,
-                FileName(inference_state, name[len(must_start_with) - like_name_length:]),
+                PathName(inference_state, name[len(must_start_with) - like_name_length:]),
                 stack=None,
                 like_name_length=like_name_length
             )
@@ -99,11 +93,6 @@ def _add_strings(context, nodes, add_slash=False):
     return string
 
 
-class FileName(AbstractArbitraryName):
-    api_type = u'path'
-    is_value_name = False
-
-
 def _add_os_path_join(module_context, start_leaf, bracket_start):
     def check(maybe_bracket, nodes):
         if maybe_bracket.start_pos != bracket_start:

jedi/api/strings.py

@@ -0,0 +1,50 @@
+"""
+This module is here for string completions. This means mostly stuff where
+strings are returned, like `foo = dict(bar=3); foo["ba` would complete to
+`"bar"]`.
+
+It however does the same for numbers. The difference between string completions
+and other completions is mostly that this module doesn't return defined
+names in a module, but pretty much an arbitrary string.
+"""
+from jedi.inference.names import AbstractArbitraryName
+from jedi.api.classes import Completion
+from jedi.parser_utils import get_string_quote
+
+_sentinel = object()
+
+
+class StringName(AbstractArbitraryName):
+    api_type = u'string'
+    is_value_name = False
+
+
+def completions_for_dicts(inference_state, dicts, literal_string):
+    for dict_key in sorted(_get_python_keys(dicts)):
+        dict_key_str = repr(dict_key)
+        if dict_key_str.startswith(literal_string):
+            name = StringName(inference_state, dict_key_str[len(literal_string):])
+            yield Completion(inference_state, name, stack=None, like_name_length=0)
+
+
+def _get_python_keys(dicts):
+    for dct in dicts:
+        if dct.array_type == 'dict':
+            for key in dct.get_key_values():
+                dict_key = key.get_safe_value(default=_sentinel)
+                if dict_key is not _sentinel:
+                    yield dict_key
+
+
+def get_quote_ending(start_leaf, code_lines, position):
+    if start_leaf.type == 'string':
+        quote = get_string_quote(start_leaf)
+    else:
+        assert start_leaf.type == 'error_leaf'
+        quote = start_leaf.value
+    potential_other_quote = \
+        code_lines[position[0] - 1][position[1]:position[1] + len(quote)]
+    # Add a quote only if it's not already there.
+    if quote == potential_other_quote:
+        return ''
+    return quote