229 lines
8 KiB
Python
229 lines
8 KiB
Python
import os
|
|
|
|
from jedi.inference.cache import inference_state_method_cache
|
|
from jedi.inference.names import AbstractNameDefinition, ModuleName
|
|
from jedi.inference.filters import GlobalNameFilter, ParserTreeFilter, DictFilter, MergedFilter
|
|
from jedi.inference import compiled
|
|
from jedi.inference.base_value import TreeValue
|
|
from jedi.inference.names import SubModuleName
|
|
from jedi.inference.helpers import values_from_qualified_names
|
|
from jedi.inference.compiled import create_simple_object
|
|
from jedi.inference.base_value import ValueSet
|
|
from jedi.inference.context import ModuleContext
|
|
|
|
|
|
class _ModuleAttributeName(AbstractNameDefinition):
|
|
"""
|
|
For module attributes like __file__, __str__ and so on.
|
|
"""
|
|
api_type = u'instance'
|
|
|
|
def __init__(self, parent_module, string_name, string_value=None):
|
|
self.parent_context = parent_module
|
|
self.string_name = string_name
|
|
self._string_value = string_value
|
|
|
|
def infer(self):
|
|
if self._string_value is not None:
|
|
s = self._string_value
|
|
if self.parent_context.inference_state.environment.version_info.major == 2 \
|
|
and not isinstance(s, bytes):
|
|
s = s.encode('utf-8')
|
|
return ValueSet([
|
|
create_simple_object(self.parent_context.inference_state, s)
|
|
])
|
|
return compiled.get_string_value_set(self.parent_context.inference_state)
|
|
|
|
|
|
class SubModuleDictMixin(object):
|
|
@inference_state_method_cache()
|
|
def sub_modules_dict(self):
|
|
"""
|
|
Lists modules in the directory of this module (if this module is a
|
|
package).
|
|
"""
|
|
names = {}
|
|
if self.is_package():
|
|
mods = self.inference_state.compiled_subprocess.iter_module_names(
|
|
self.py__path__()
|
|
)
|
|
for name in mods:
|
|
# It's obviously a relative import to the current module.
|
|
names[name] = SubModuleName(self.as_context(), name)
|
|
|
|
# In the case of an import like `from x.` we don't need to
|
|
# add all the variables, this is only about submodules.
|
|
return names
|
|
|
|
|
|
class ModuleMixin(SubModuleDictMixin):
|
|
_module_name_class = ModuleName
|
|
|
|
def get_filters(self, origin_scope=None):
|
|
yield MergedFilter(
|
|
ParserTreeFilter(
|
|
parent_context=self.as_context(),
|
|
origin_scope=origin_scope
|
|
),
|
|
GlobalNameFilter(self.as_context(), self.tree_node),
|
|
)
|
|
yield DictFilter(self.sub_modules_dict())
|
|
yield DictFilter(self._module_attributes_dict())
|
|
for star_filter in self.iter_star_filters():
|
|
yield star_filter
|
|
|
|
def py__class__(self):
|
|
c, = values_from_qualified_names(self.inference_state, u'types', u'ModuleType')
|
|
return c
|
|
|
|
def is_module(self):
|
|
return True
|
|
|
|
def is_stub(self):
|
|
return False
|
|
|
|
@property
|
|
@inference_state_method_cache()
|
|
def name(self):
|
|
return self._module_name_class(self, self.string_names[-1])
|
|
|
|
@inference_state_method_cache()
|
|
def _module_attributes_dict(self):
|
|
names = ['__package__', '__doc__', '__name__']
|
|
# All the additional module attributes are strings.
|
|
dct = dict((n, _ModuleAttributeName(self, n)) for n in names)
|
|
file = self.py__file__()
|
|
if file is not None:
|
|
dct['__file__'] = _ModuleAttributeName(self, '__file__', file)
|
|
return dct
|
|
|
|
def iter_star_filters(self):
|
|
for star_module in self.star_imports():
|
|
f = next(star_module.get_filters(), None)
|
|
assert f is not None
|
|
yield f
|
|
|
|
# I'm not sure if the star import cache is really that effective anymore
|
|
# with all the other really fast import caches. Recheck. Also we would need
|
|
# to push the star imports into InferenceState.module_cache, if we reenable this.
|
|
@inference_state_method_cache([])
|
|
def star_imports(self):
|
|
from jedi.inference.imports import Importer
|
|
|
|
modules = []
|
|
module_context = self.as_context()
|
|
for i in self.tree_node.iter_imports():
|
|
if i.is_star_import():
|
|
new = Importer(
|
|
self.inference_state,
|
|
import_path=i.get_paths()[-1],
|
|
module_context=module_context,
|
|
level=i.level
|
|
).follow()
|
|
|
|
for module in new:
|
|
if isinstance(module, ModuleValue):
|
|
modules += module.star_imports()
|
|
modules += new
|
|
return modules
|
|
|
|
def get_qualified_names(self):
|
|
"""
|
|
A module doesn't have a qualified name, but it's important to note that
|
|
it's reachable and not `None`. With this information we can add
|
|
qualified names on top for all value children.
|
|
"""
|
|
return ()
|
|
|
|
|
|
class ModuleValue(ModuleMixin, TreeValue):
|
|
api_type = u'module'
|
|
|
|
def __init__(self, inference_state, module_node, code_lines, file_io=None,
|
|
string_names=None, is_package=False):
|
|
super(ModuleValue, self).__init__(
|
|
inference_state,
|
|
parent_context=None,
|
|
tree_node=module_node
|
|
)
|
|
self.file_io = file_io
|
|
if file_io is None:
|
|
self._path = None
|
|
else:
|
|
self._path = file_io.path
|
|
self.string_names = string_names # Optional[Tuple[str, ...]]
|
|
self.code_lines = code_lines
|
|
self._is_package = is_package
|
|
|
|
def is_stub(self):
|
|
if self._path is not None and self._path.endswith('.pyi'):
|
|
# Currently this is the way how we identify stubs when e.g. goto is
|
|
# used in them. This could be changed if stubs would be identified
|
|
# sooner and used as StubModuleValue.
|
|
return True
|
|
return super(ModuleValue, self).is_stub()
|
|
|
|
def py__name__(self):
|
|
if self.string_names is None:
|
|
return None
|
|
return '.'.join(self.string_names)
|
|
|
|
def py__file__(self):
|
|
"""
|
|
In contrast to Python's __file__ can be None.
|
|
"""
|
|
if self._path is None:
|
|
return None
|
|
|
|
return os.path.abspath(self._path)
|
|
|
|
def is_package(self):
|
|
return self._is_package
|
|
|
|
def py__package__(self):
|
|
if self._is_package:
|
|
return self.string_names
|
|
return self.string_names[:-1]
|
|
|
|
def py__path__(self):
|
|
"""
|
|
In case of a package, this returns Python's __path__ attribute, which
|
|
is a list of paths (strings).
|
|
Returns None if the module is not a package.
|
|
"""
|
|
if not self._is_package:
|
|
return None
|
|
|
|
# A namespace package is typically auto generated and ~10 lines long.
|
|
first_few_lines = ''.join(self.code_lines[:50])
|
|
# these are strings that need to be used for namespace packages,
|
|
# the first one is ``pkgutil``, the second ``pkg_resources``.
|
|
options = ('declare_namespace(__name__)', 'extend_path(__path__')
|
|
if options[0] in first_few_lines or options[1] in first_few_lines:
|
|
# It is a namespace, now try to find the rest of the
|
|
# modules on sys_path or whatever the search_path is.
|
|
paths = set()
|
|
for s in self.inference_state.get_sys_path():
|
|
other = os.path.join(s, self.name.string_name)
|
|
if os.path.isdir(other):
|
|
paths.add(other)
|
|
if paths:
|
|
return list(paths)
|
|
# Nested namespace packages will not be supported. Nobody ever
|
|
# asked for it and in Python 3 they are there without using all the
|
|
# crap above.
|
|
|
|
# Default to the of this file.
|
|
file = self.py__file__()
|
|
assert file is not None # Shouldn't be a package in the first place.
|
|
return [os.path.dirname(file)]
|
|
|
|
def _as_context(self):
|
|
return ModuleContext(self)
|
|
|
|
def __repr__(self):
|
|
return "<%s: %s@%s-%s is_stub=%s>" % (
|
|
self.__class__.__name__, self.py__name__(),
|
|
self.tree_node.start_pos[0], self.tree_node.end_pos[0],
|
|
self.is_stub()
|
|
)
|