Fix some fstring issues for now

jedi/api/helpers.py

@@ -11,6 +11,8 @@ from parso.python import tree
 from jedi._compatibility import u
 from jedi.evaluate.syntax_tree import eval_atom
 from jedi.evaluate.helpers import evaluate_call_of_leaf
+from jedi.evaluate.compiled import get_string_context_set
+from jedi.evaluate.base_context import ContextSet
 from jedi.cache import time_cache
 
 
@@ -193,6 +195,8 @@ def evaluate_goto_definition(evaluator, context, leaf):
         return evaluate_call_of_leaf(context, leaf)
     elif isinstance(leaf, tree.Literal):
         return eval_atom(context, leaf)
+    elif leaf.type == 'fstring_string':
+        return get_string_context_set(evaluator)
     return []
 
 

jedi/evaluate/compiled/__init__.py

@@ -28,6 +28,10 @@ def get_special_object(evaluator, identifier):
     )
 
 
+def get_string_context_set(evaluator):
+    return builtin_from_name(evaluator, u'str').execute_evaluated()
+
+
 def load_module(evaluator, **kwargs):
     access_path = evaluator.compiled_subprocess.load_module(**kwargs)
     if access_path is None:

jedi/evaluate/context/module.py

@@ -23,8 +23,7 @@ class _ModuleAttributeName(AbstractNameDefinition):
         self.string_name = string_name
 
     def infer(self):
-        ctx = compiled.builtin_from_name(self.parent_context.evaluator, u'str')
-        return ctx.execute_evaluated()
+        return compiled.get_string_context_set(self.parent_context.evaluator)
 
 
 class ModuleName(ContextNameMixin, AbstractNameDefinition):

test/completion/fstring.py

@@ -23,5 +23,5 @@ Fr'a{Foo.bar'
 #? str()
 Fr'sasdf'
 
-#? 7 str()
+#? 7
 Fr'''sasdf''' + ''

test/test_evaluate/test_literals.py

@@ -1,9 +1,15 @@
 import pytest
+from jedi.evaluate.context import CompiledInstance
 
 
-def _eval_literal(Script, code):
+def _eval_literal(Script, code, *, is_fstring=False):
     def_, = Script(code).goto_definitions()
-    return def_._name._context.get_safe_value()
+    if is_fstring:
+        assert def_.name == 'str'
+        assert isinstance(def_._name._context, CompiledInstance)
+        return ''
+    else:
+        return def_._name._context.get_safe_value()
 
 
 def test_f_strings(Script, environment):
@@ -14,10 +20,10 @@ def test_f_strings(Script, environment):
     if environment.version_info < (3, 6):
         pytest.skip()
 
-    assert _eval_literal(Script, 'f"asdf"') == ''
-    assert _eval_literal(Script, 'f"{asdf}"') == ''
-    assert _eval_literal(Script, 'F"{asdf}"') == ''
-    assert _eval_literal(Script, 'rF"{asdf}"') == ''
+    assert _eval_literal(Script, 'f"asdf"', is_fstring=True) == ''
+    assert _eval_literal(Script, 'f"{asdf} "', is_fstring=True) == ''
+    assert _eval_literal(Script, 'F"{asdf} "', is_fstring=True) == ''
+    assert _eval_literal(Script, 'rF"{asdf} "', is_fstring=True) == ''
 
 
 def test_rb_strings(Script, environment):