210 lines
7.4 KiB
Python
210 lines
7.4 KiB
Python
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from jedi import debug
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from jedi.inference.base_value import ValueSet, \
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NO_VALUES
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from jedi.inference.utils import to_list
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from jedi.inference.gradual.stub_value import StubModuleValue
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from jedi.inference.gradual.typeshed import try_to_load_stub_cached
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from jedi.inference.value.decorator import Decoratee
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def _stub_to_python_value_set(stub_value, ignore_compiled=False):
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stub_module_context = stub_value.get_root_context()
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if not stub_module_context.is_stub():
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return ValueSet([stub_value])
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decorates = None
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if isinstance(stub_value, Decoratee):
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decorates = stub_value._original_value
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was_instance = stub_value.is_instance()
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if was_instance:
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arguments = getattr(stub_value, '_arguments', None)
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stub_value = stub_value.py__class__()
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qualified_names = stub_value.get_qualified_names()
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if qualified_names is None:
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return NO_VALUES
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was_bound_method = stub_value.is_bound_method()
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if was_bound_method:
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# Infer the object first. We can infer the method later.
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method_name = qualified_names[-1]
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qualified_names = qualified_names[:-1]
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was_instance = True
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arguments = None
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values = _infer_from_stub(stub_module_context, qualified_names, ignore_compiled)
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if was_instance:
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values = ValueSet.from_sets(
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c.execute_with_values() if arguments is None else c.execute(arguments)
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for c in values
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if c.is_class()
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)
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if was_bound_method:
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# Now that the instance has been properly created, we can simply get
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# the method.
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values = values.py__getattribute__(method_name)
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if decorates is not None:
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values = ValueSet(Decoratee(v, decorates) for v in values)
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return values
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def _infer_from_stub(stub_module_context, qualified_names, ignore_compiled):
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from jedi.inference.compiled.mixed import MixedObject
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stub_module = stub_module_context.get_value()
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assert isinstance(stub_module, (StubModuleValue, MixedObject)), stub_module_context
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non_stubs = stub_module.non_stub_value_set
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if ignore_compiled:
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non_stubs = non_stubs.filter(lambda c: not c.is_compiled())
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for name in qualified_names:
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non_stubs = non_stubs.py__getattribute__(name)
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return non_stubs
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@to_list
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def _try_stub_to_python_names(names, prefer_stub_to_compiled=False):
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for name in names:
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module_context = name.get_root_context()
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if not module_context.is_stub():
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yield name
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continue
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if name.api_type == 'module':
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values = convert_values(name.infer(), ignore_compiled=prefer_stub_to_compiled)
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if values:
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for v in values:
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yield v.name
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continue
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else:
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v = name.get_defining_qualified_value()
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if v is not None:
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converted = _stub_to_python_value_set(v, ignore_compiled=prefer_stub_to_compiled)
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if converted:
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converted_names = converted.goto(name.get_public_name())
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if converted_names:
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for n in converted_names:
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if n.get_root_context().is_stub():
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# If it's a stub again, it means we're going in
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# a circle. Probably some imports make it a
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# stub again.
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yield name
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else:
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yield n
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continue
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yield name
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def _load_stub_module(module):
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if module.is_stub():
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return module
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return try_to_load_stub_cached(
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module.inference_state,
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import_names=module.string_names,
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python_value_set=ValueSet([module]),
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parent_module_value=None,
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sys_path=module.inference_state.get_sys_path(),
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)
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@to_list
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def _python_to_stub_names(names, fallback_to_python=False):
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for name in names:
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module_context = name.get_root_context()
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if module_context.is_stub():
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yield name
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continue
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if name.api_type == 'module':
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found_name = False
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for n in name.goto():
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if n.api_type == 'module':
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values = convert_values(n.infer(), only_stubs=True)
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for v in values:
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yield v.name
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found_name = True
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else:
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for x in _python_to_stub_names([n], fallback_to_python=fallback_to_python):
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yield x
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found_name = True
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if found_name:
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continue
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else:
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v = name.get_defining_qualified_value()
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if v is not None:
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converted = to_stub(v)
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if converted:
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converted_names = converted.goto(name.get_public_name())
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if converted_names:
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yield from converted_names
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continue
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if fallback_to_python:
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# This is the part where if we haven't found anything, just return
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# the stub name.
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yield name
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def convert_names(names, only_stubs=False, prefer_stubs=False, prefer_stub_to_compiled=True):
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if only_stubs and prefer_stubs:
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raise ValueError("You cannot use both of only_stubs and prefer_stubs.")
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with debug.increase_indent_cm('convert names'):
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if only_stubs or prefer_stubs:
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return _python_to_stub_names(names, fallback_to_python=prefer_stubs)
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else:
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return _try_stub_to_python_names(
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names, prefer_stub_to_compiled=prefer_stub_to_compiled)
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def convert_values(values, only_stubs=False, prefer_stubs=False, ignore_compiled=True):
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assert not (only_stubs and prefer_stubs)
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with debug.increase_indent_cm('convert values'):
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if only_stubs or prefer_stubs:
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return ValueSet.from_sets(
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to_stub(value)
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or (ValueSet({value}) if prefer_stubs else NO_VALUES)
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for value in values
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)
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else:
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return ValueSet.from_sets(
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_stub_to_python_value_set(stub_value, ignore_compiled=ignore_compiled)
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or ValueSet({stub_value})
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for stub_value in values
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)
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def to_stub(value):
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if value.is_stub():
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return ValueSet([value])
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was_instance = value.is_instance()
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if was_instance:
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value = value.py__class__()
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qualified_names = value.get_qualified_names()
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stub_module = _load_stub_module(value.get_root_context().get_value())
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if stub_module is None or qualified_names is None:
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return NO_VALUES
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was_bound_method = value.is_bound_method()
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if was_bound_method:
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# Infer the object first. We can infer the method later.
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method_name = qualified_names[-1]
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qualified_names = qualified_names[:-1]
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was_instance = True
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stub_values = ValueSet([stub_module])
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for name in qualified_names:
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stub_values = stub_values.py__getattribute__(name)
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if was_instance:
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stub_values = ValueSet.from_sets(
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c.execute_with_values()
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for c in stub_values
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if c.is_class()
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)
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if was_bound_method:
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# Now that the instance has been properly created, we can simply get
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# the method.
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stub_values = stub_values.py__getattribute__(method_name)
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return stub_values
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