Fix Jedi type map (use types offered by modern Jedi)

pylsp/plugins/jedi_completion.py

@@ -10,39 +10,21 @@
 
 log = logging.getLogger(__name__)
 
-# Map to the VSCode type
+# Map to the LSP type
+# > Valid values for type are ``module``, `` class ``, ``instance``, ``function``,
+# > ``param``, ``path``, ``keyword``, ``property`` and ``statement``.
+# see: https://jedi.readthedocs.io/en/latest/docs/api-classes.html#jedi.api.classes.BaseName.type
 _TYPE_MAP = {
-    'none': lsp.CompletionItemKind.Value,
-    'type': lsp.CompletionItemKind.Class,
-    'tuple': lsp.CompletionItemKind.Class,
-    'dict': lsp.CompletionItemKind.Class,
-    'dictionary': lsp.CompletionItemKind.Class,
-    'function': lsp.CompletionItemKind.Function,
-    'lambda': lsp.CompletionItemKind.Function,
-    'generator': lsp.CompletionItemKind.Function,
+    'module': lsp.CompletionItemKind.Module,
+    'namespace': lsp.CompletionItemKind.Module,    # to be added in Jedi 0.18+
     'class': lsp.CompletionItemKind.Class,
     'instance': lsp.CompletionItemKind.Reference,
-    'method': lsp.CompletionItemKind.Method,
-    'builtin': lsp.CompletionItemKind.Class,
-    'builtinfunction': lsp.CompletionItemKind.Function,
-    'module': lsp.CompletionItemKind.Module,
-    'file': lsp.CompletionItemKind.File,
-    'path': lsp.CompletionItemKind.Text,
-    'xrange': lsp.CompletionItemKind.Class,
-    'slice': lsp.CompletionItemKind.Class,
-    'traceback': lsp.CompletionItemKind.Class,
-    'frame': lsp.CompletionItemKind.Class,
-    'buffer': lsp.CompletionItemKind.Class,
-    'dictproxy': lsp.CompletionItemKind.Class,
-    'funcdef': lsp.CompletionItemKind.Function,
-    'property': lsp.CompletionItemKind.Property,
-    'import': lsp.CompletionItemKind.Module,
-    'keyword': lsp.CompletionItemKind.Keyword,
-    'constant': lsp.CompletionItemKind.Variable,
-    'variable': lsp.CompletionItemKind.Variable,
-    'value': lsp.CompletionItemKind.Value,
+    'function': lsp.CompletionItemKind.Function,
     'param': lsp.CompletionItemKind.Variable,
-    'statement': lsp.CompletionItemKind.Keyword,
+    'path': lsp.CompletionItemKind.File,
+    'keyword': lsp.CompletionItemKind.Keyword,
+    'property': lsp.CompletionItemKind.Property,    # added in Jedi 0.18
+    'statement': lsp.CompletionItemKind.Variable
 }
 
 # Types of parso nodes for which snippet is not included in the completion

test/plugins/test_completion.py

@@ -4,12 +4,16 @@
 import os
 import sys
 
+from pathlib import Path
+from typing import NamedTuple, Dict
+
 import pytest
 
 from pylsp import uris, lsp
 from pylsp.workspace import Document
 from pylsp.plugins.jedi_completion import pylsp_completions as pylsp_jedi_completions
 from pylsp.plugins.rope_completion import pylsp_completions as pylsp_rope_completions
+from pylsp._utils import JEDI_VERSION
 
 
 PY2 = sys.version[0] == '2'
@@ -50,6 +54,77 @@ def test_rope_import_completion(config, workspace):
     assert items is None
 
 
+class TypeCase(NamedTuple):
+    document: str
+    position: dict
+    label: str
+    expected: lsp.CompletionItemKind
+
+
+TYPE_CASES: Dict[str, TypeCase] = {
+    'variable': TypeCase(
+        document='test = 1\ntes',
+        position={'line': 1, 'character': 3},
+        label='test',
+        expected=lsp.CompletionItemKind.Variable
+    ),
+    'function': TypeCase(
+        document='def test():\n    pass\ntes',
+        position={'line': 2, 'character': 3},
+        label='test()',
+        expected=lsp.CompletionItemKind.Function
+    ),
+    'keyword': TypeCase(
+        document='fro',
+        position={'line': 0, 'character': 3},
+        label='from',
+        expected=lsp.CompletionItemKind.Keyword
+    ),
+    'file': TypeCase(
+        document='"' + __file__[:-2].replace('"', '\\"') + '"',
+        position={'line': 0, 'character': len(__file__) - 2},
+        label=Path(__file__).name + '"',
+        expected=lsp.CompletionItemKind.File
+    ),
+    'module': TypeCase(
+        document='import statis',
+        position={'line': 0, 'character': 13},
+        label='statistics',
+        expected=lsp.CompletionItemKind.Module
+    ),
+    'class': TypeCase(
+        document='KeyErr',
+        position={'line': 0, 'character': 6},
+        label='KeyError',
+        expected=lsp.CompletionItemKind.Class
+    ),
+    'property': TypeCase(
+        document=(
+            'class A:\n'
+            '    @property\n'
+            '    def test(self):\n'
+            '        pass\n'
+            'A().tes'
+        ),
+        position={'line': 4, 'character': 5},
+        label='test',
+        expected=lsp.CompletionItemKind.Property
+    )
+}
+
+
+@pytest.mark.parametrize('case', list(TYPE_CASES.values()), ids=list(TYPE_CASES.keys()))
+def test_jedi_completion_type(case, config, workspace):
+    # property support was introduced in 0.18
+    if case.expected == lsp.CompletionItemKind.Property and JEDI_VERSION.startswith('0.17'):
+        return
+
+    doc = Document(DOC_URI, workspace, case.document)
+    items = pylsp_jedi_completions(config, doc, case.position)
+    items = {i['label']: i for i in items}
+    assert items[case.label]['kind'] == case.expected
+
+
 def test_jedi_completion(config, workspace):
     # Over 'i' in os.path.isabs(...)
     com_position = {'line': 1, 'character': 15}