def _analysis(self):
self._evaluator.is_analysis = True
module_node = self._get_module_node()
self._evaluator.analysis_modules = [module_node]
try:
for node in module_node.nodes_to_execute():
context = self._get_module().create_context(node)
if node.type in ('funcdef', 'classdef'):
# TODO This is stupid, should be private
from jedi.evaluate.finder import _name_to_types
# Resolve the decorators.
_name_to_types(self._evaluator, context, node.children[1])
elif isinstance(node, tree.Import):
import_names = set(node.get_defined_names())
if node.is_nested():
import_names |= set(path[-1] for path in node.paths())
for n in import_names:
imports.infer_import(context, n)
elif node.type == 'expr_stmt':
types = context.eval_node(node)
for testlist in node.children[:-1:2]:
# Iterate tuples.
unpack_tuple_to_dict(self._evaluator, types, testlist)
else:
try_iter_content(self._evaluator.goto_definitions(context, node))
self._evaluator.reset_recursion_limitations()
ana = [a for a in self._evaluator.analysis if self.path == a.path]
return sorted(set(ana), key=lambda x: x.line)
finally:
self._evaluator.is_analysis = False
def _analysis(self):
self._evaluator.is_analysis = True
module_node = self._get_module_node()
self._evaluator.analysis_modules = [module_node]
try:
for node in get_executable_nodes(module_node):
context = self._get_module().create_context(node)
if node.type in ('funcdef', 'classdef'):
# Resolve the decorators.
tree_name_to_contexts(self._evaluator, context, node.children[1])
elif isinstance(node, tree.Import):
import_names = set(node.get_defined_names())
if node.is_nested():
import_names |= set(path[-1] for path in node.get_paths())
for n in import_names:
imports.infer_import(context, n)
elif node.type == 'expr_stmt':
types = context.eval_node(node)
for testlist in node.children[:-1:2]:
# Iterate tuples.
unpack_tuple_to_dict(context, types, testlist)
else:
if node.type == 'name':
defs = self._evaluator.goto_definitions(context, node)
else:
defs = evaluate_call_of_leaf(context, node)
try_iter_content(defs)
self._evaluator.reset_recursion_limitations()
ana = [a for a in self._evaluator.analysis if self.path == a.path]
return sorted(set(ana), key=lambda x: x.line)
finally:
self._evaluator.is_analysis = False
def goto_definitions(self, context, name):
def_ = name.get_definition(import_name_always=True)
if def_ is not None:
type_ = def_.type
is_classdef = type_ == 'classdef'
if is_classdef or type_ == 'funcdef':
if is_classdef:
c = ClassContext(self, context, name.parent)
else:
c = FunctionContext.from_context(context, name.parent)
return ContextSet([c])
if type_ == 'expr_stmt':
is_simple_name = name.parent.type not in ('power', 'trailer')
if is_simple_name:
return eval_expr_stmt(context, def_, name)
if type_ == 'for_stmt':
container_types = context.eval_node(def_.children[3])
cn = ContextualizedNode(context, def_.children[3])
for_types = iterate_contexts(container_types, cn)
c_node = ContextualizedName(context, name)
return check_tuple_assignments(self, c_node, for_types)
if type_ in ('import_from', 'import_name'):
return imports.infer_import(context, name)
else:
result = self._follow_error_node_imports_if_possible(context, name)
if result is not None:
return result
return helpers.evaluate_call_of_leaf(context, name)
def _name_to_types(evaluator, context, tree_name):
types = []
node = tree_name.get_definition(import_name_always=True)
if node is None:
node = tree_name.parent
if node.type == 'global_stmt':
context = evaluator.create_context(context, tree_name)
finder = NameFinder(evaluator, context, context, tree_name.value)
filters = finder.get_filters(search_global=True)
# For global_stmt lookups, we only need the first possible scope,
# which means the function itself.
filters = [next(filters)]
return finder.find(filters, attribute_lookup=False)
elif node.type not in ('import_from', 'import_name'):
raise ValueError("Should not happen.")
typ = node.type
if typ == 'for_stmt':
types = pep0484.find_type_from_comment_hint_for(context, node, tree_name)
if types:
return types
if typ == 'with_stmt':
types = pep0484.find_type_from_comment_hint_with(context, node, tree_name)
if types:
return types
if typ in ('for_stmt', 'comp_for'):
try:
types = context.predefined_names[node][tree_name.value]
except KeyError:
cn = ContextualizedNode(context, node.children[3])
for_types = iterable.py__iter__types(evaluator, cn.infer(), cn)
c_node = ContextualizedName(context, tree_name)
types = check_tuple_assignments(evaluator, c_node, for_types)
elif typ == 'expr_stmt':
types = _remove_statements(evaluator, context, node, tree_name)
elif typ == 'with_stmt':
context_managers = context.eval_node(node.get_test_node_from_name(tree_name))
enter_methods = unite(
context_manager.py__getattribute__('__enter__')
for context_manager in context_managers
)
types = unite(method.execute_evaluated() for method in enter_methods)
elif typ in ('import_from', 'import_name'):
types = imports.infer_import(context, tree_name)
elif typ in ('funcdef', 'classdef'):
types = _apply_decorators(evaluator, context, node)
elif typ == 'try_stmt':
# TODO an exception can also be a tuple. Check for those.
# TODO check for types that are not classes and add it to
# the static analysis report.
exceptions = context.eval_node(tree_name.get_previous_sibling().get_previous_sibling())
types = unite(
evaluator.execute(t, param.ValuesArguments([]))
for t in exceptions
)
else:
raise ValueError("Should not happen.")
return types
def tree_name_to_contexts(evaluator, context, tree_name):
types = []
node = tree_name.get_definition(import_name_always=True)
if node is None:
node = tree_name.parent
if node.type == 'global_stmt':
context = evaluator.create_context(context, tree_name)
finder = NameFinder(evaluator, context, context, tree_name.value)
filters = finder.get_filters(search_global=True)
# For global_stmt lookups, we only need the first possible scope,
# which means the function itself.
filters = [next(filters)]
return finder.find(filters, attribute_lookup=False)
elif node.type not in ('import_from', 'import_name'):
raise ValueError("Should not happen.")
typ = node.type
if typ == 'for_stmt':
types = pep0484.find_type_from_comment_hint_for(
context, node, tree_name)
if types:
return types
if typ == 'with_stmt':
types = pep0484.find_type_from_comment_hint_with(
context, node, tree_name)
if types:
return types
if typ in ('for_stmt', 'comp_for'):
try:
types = context.predefined_names[node][tree_name.value]
except KeyError:
cn = ContextualizedNode(context, node.children[3])
for_types = iterate_contexts(cn.infer(), cn)
c_node = ContextualizedName(context, tree_name)
types = check_tuple_assignments(evaluator, c_node, for_types)
elif typ == 'expr_stmt':
types = _remove_statements(evaluator, context, node, tree_name)
elif typ == 'with_stmt':
context_managers = context.eval_node(
node.get_test_node_from_name(tree_name))
enter_methods = context_managers.py__getattribute__('__enter__')
return enter_methods.execute_evaluated()
elif typ in ('import_from', 'import_name'):
types = imports.infer_import(context, tree_name)
elif typ in ('funcdef', 'classdef'):
types = _apply_decorators(context, node)
elif typ == 'try_stmt':
# TODO an exception can also be a tuple. Check for those. id:627 gh:628
# TODO check for types that are not classes and add it to id:731 gh:732
# the static analysis report.
exceptions = context.eval_node(
tree_name.get_previous_sibling().get_previous_sibling())
types = exceptions.execute_evaluated()
else:
raise ValueError("Should not happen.")
return types
def star_imports(self):
modules = []
for i in self.tree_node.iter_imports():
if i.is_star_import():
name = i.get_paths()[-1][-1]
new = imports.infer_import(self, name)
for module in new:
if isinstance(module, ModuleContext):
modules += module.star_imports()
modules += new
return modules
def star_imports(self):
modules = []
for i in self.tree_node.iter_imports():
if i.is_star_import():
name = i.get_paths()[-1][-1]
new = infer_import(self, name)
for module in new:
if isinstance(module, ModuleContext):
modules += module.star_imports()
modules += new
return modules
def star_imports(self):
modules = []
for i in self.tree_node.imports:
if i.is_star_import():
name = i.star_import_name()
new = imports.infer_import(self, name)
for module in new:
if isinstance(module, ModuleContext):
modules += module.star_imports()
modules += new
return modules
def resolve_potential_imports(evaluator, definitions):
""" Adds the modules of the imports """
new = set()
for d in definitions:
if isinstance(d, TreeNameDefinition):
imp_or_stmt = d.tree_name.get_definition()
if isinstance(imp_or_stmt, tree.Import):
new |= resolve_potential_imports(
evaluator,
set(imports.infer_import(
d.parent_context, d.tree_name, is_goto=True
))
)
return set(definitions) | new
def _name_to_types(evaluator, context, tree_name):
types = []
node = tree_name.get_definition()
if node.type == 'for_stmt':
types = pep0484.find_type_from_comment_hint_for(
context, node, tree_name)
if types:
return types
if node.type == 'with_stmt':
types = pep0484.find_type_from_comment_hint_with(
context, node, tree_name)
if types:
return types
if node.type in ('for_stmt', 'comp_for'):
try:
types = context.predefined_names[node][tree_name.value]
except KeyError:
container_types = context.eval_node(node.children[3])
for_types = iterable.py__iter__types(evaluator, container_types,
node.children[3])
types = check_tuple_assignments(evaluator, for_types, tree_name)
elif node.type == 'expr_stmt':
types = _remove_statements(evaluator, context, node, tree_name)
elif node.type == 'with_stmt':
types = context.eval_node(node.node_from_name(tree_name))
elif isinstance(node, tree.Import):
types = imports.infer_import(context, tree_name)
elif node.type in ('funcdef', 'classdef'):
types = _apply_decorators(evaluator, context, node)
elif node.type == 'global_stmt':
context = evaluator.create_context(context, tree_name)
finder = NameFinder(evaluator, context, context, str(tree_name))
filters = finder.get_filters(search_global=True)
# For global_stmt lookups, we only need the first possible scope,
# which means the function itself.
filters = [next(filters)]
types += finder.find(filters, attribute_lookup=False)
elif isinstance(node, tree.TryStmt):
# TODO an exception can also be a tuple. Check for those.
# TODO check for types that are not classes and add it to
# the static analysis report.
exceptions = context.eval_node(
tree_name.get_previous_sibling().get_previous_sibling())
types = unite(
evaluator.execute(t, param.ValuesArguments([]))
for t in exceptions)
else:
raise ValueError("Should not happen.")
return types
def _analysis(self):
self._evaluator.is_analysis = True
module_node = self._get_module_node()
self._evaluator.analysis_modules = [module_node]
try:
for node in get_executable_nodes(module_node):
context = self._get_module().create_context(node)
if node.type in ('funcdef', 'classdef'):
# TODO This is stupid, should be private
from jedi.evaluate.finder import _name_to_types
# Resolve the decorators.
_name_to_types(self._evaluator, context, node.children[1])
elif isinstance(node, tree.Import):
import_names = set(node.get_defined_names())
if node.is_nested():
import_names |= set(path[-1]
for path in node.get_paths())
for n in import_names:
imports.infer_import(context, n)
elif node.type == 'expr_stmt':
types = context.eval_node(node)
for testlist in node.children[:-1:2]:
# Iterate tuples.
unpack_tuple_to_dict(context, types, testlist)
else:
if node.type == 'name':
defs = self._evaluator.goto_definitions(context, node)
else:
defs = evaluate_call_of_leaf(context, node)
try_iter_content(defs)
self._evaluator.reset_recursion_limitations()
ana = [a for a in self._evaluator.analysis if self.path == a.path]
return sorted(set(ana), key=lambda x: x.line)
finally:
self._evaluator.is_analysis = False
def _name_to_types(evaluator, context, tree_name):
types = []
node = tree_name.get_definition()
if node.isinstance(tree.ForStmt):
types = pep0484.find_type_from_comment_hint_for(context, node, tree_name)
if types:
return types
if node.isinstance(tree.WithStmt):
types = pep0484.find_type_from_comment_hint_with(context, node, tree_name)
if types:
return types
if node.type in ('for_stmt', 'comp_for'):
try:
types = context.predefined_names[node][tree_name.value]
except KeyError:
container_types = context.eval_node(node.children[3])
for_types = iterable.py__iter__types(evaluator, container_types, node.children[3])
types = check_tuple_assignments(evaluator, for_types, tree_name)
elif node.isinstance(tree.ExprStmt):
types = _remove_statements(evaluator, context, node, tree_name)
elif node.isinstance(tree.WithStmt):
types = context.eval_node(node.node_from_name(tree_name))
elif isinstance(node, tree.Import):
types = imports.infer_import(context, tree_name)
elif node.type in ('funcdef', 'classdef'):
types = _apply_decorators(evaluator, context, node)
elif node.type == 'global_stmt':
context = evaluator.create_context(context, tree_name)
finder = NameFinder(evaluator, context, context, str(tree_name))
filters = finder.get_filters(search_global=True)
# For global_stmt lookups, we only need the first possible scope,
# which means the function itself.
filters = [next(filters)]
types += finder.find(filters, attribute_lookup=False)
elif isinstance(node, tree.TryStmt):
# TODO an exception can also be a tuple. Check for those.
# TODO check for types that are not classes and add it to
# the static analysis report.
exceptions = context.eval_node(tree_name.get_previous_sibling().get_previous_sibling())
types = unite(
evaluator.execute(t, param.ValuesArguments([]))
for t in exceptions
)
else:
raise ValueError("Should not happen.")
return types
def goto_definitions(self, context, name):
def_ = name.get_definition()
is_simple_name = name.parent.type not in ('power', 'trailer')
if is_simple_name:
if name.parent.type == 'classdef' and name.parent.name == name:
return [er.ClassContext(self, name.parent, context)]
elif name.parent.type == 'funcdef':
return [er.FunctionContext(self, context, name.parent)]
elif name.parent.type == 'file_input':
raise NotImplementedError
if def_.type == 'expr_stmt' and name in def_.get_defined_names():
return self.eval_statement(context, def_, name)
elif def_.type == 'for_stmt':
container_types = self.eval_element(context, def_.children[3])
for_types = iterable.py__iter__types(self, container_types,
def_.children[3])
return finder.check_tuple_assignments(self, for_types, name)
elif def_.type in ('import_from', 'import_name'):
return imports.infer_import(context, name)
return helpers.evaluate_call_of_leaf(context, name)
def goto_definitions(self, context, name):
def_ = name.get_definition()
is_simple_name = name.parent.type not in ('power', 'trailer')
if is_simple_name:
if name.parent.type == 'classdef' and name.parent.name == name:
return [er.ClassContext(self, name.parent, context)]
elif name.parent.type == 'funcdef':
return [er.FunctionContext(self, context, name.parent)]
elif name.parent.type == 'file_input':
raise NotImplementedError
if def_.type == 'expr_stmt' and name in def_.get_defined_names():
return self.eval_statement(context, def_, name)
elif def_.type == 'for_stmt':
container_types = self.eval_element(context, def_.children[3])
cn = ContextualizedNode(context, def_.children[3])
for_types = iterable.py__iter__types(self, container_types, cn)
c_node = ContextualizedName(context, name)
return finder.check_tuple_assignments(self, c_node, for_types)
elif def_.type in ('import_from', 'import_name'):
return imports.infer_import(context, name)
return helpers.evaluate_call_of_leaf(context, name)
def goto_definitions(self, context, name):
def_ = name.get_definition(import_name_always=True)
if def_ is not None:
type_ = def_.type
if type_ == 'classdef':
return [ClassContext(self, context, name.parent)]
elif type_ == 'funcdef':
return [FunctionContext(self, context, name.parent)]
if type_ == 'expr_stmt':
is_simple_name = name.parent.type not in ('power', 'trailer')
if is_simple_name:
return eval_expr_stmt(context, def_, name)
if type_ == 'for_stmt':
container_types = context.eval_node(def_.children[3])
cn = ContextualizedNode(context, def_.children[3])
for_types = iterate_contexts(container_types, cn)
c_node = ContextualizedName(context, name)
return check_tuple_assignments(self, c_node, for_types)
if type_ in ('import_from', 'import_name'):
return imports.infer_import(context, name)
return helpers.evaluate_call_of_leaf(context, name)
def _goto(self, context, name):
definition = name.get_definition(import_name_always=True)
if definition is not None:
type_ = definition.type
if type_ == 'expr_stmt':
# Only take the parent, because if it's more complicated than just
# a name it's something you can "goto" again.
is_simple_name = name.parent.type not in ('power', 'trailer')
if is_simple_name:
return [TreeNameDefinition(context, name)]
elif type_ == 'param':
return [ParamName(context, name)]
elif type_ in ('funcdef', 'classdef'):
return [TreeNameDefinition(context, name)]
elif type_ in ('import_from', 'import_name'):
module_names = imports.infer_import(context, name, is_goto=True)
return module_names
else:
contexts = self._follow_error_node_imports_if_possible(context, name)
if contexts is not None:
return [context.name for context in contexts]
par = name.parent
node_type = par.type
if node_type == 'argument' and par.children[1] == '=' and par.children[0] == name:
# Named param goto.
trailer = par.parent
if trailer.type == 'arglist':
trailer = trailer.parent
if trailer.type != 'classdef':
if trailer.type == 'decorator':
context_set = context.eval_node(trailer.children[1])
else:
i = trailer.parent.children.index(trailer)
to_evaluate = trailer.parent.children[:i]
if to_evaluate[0] == 'await':
to_evaluate.pop(0)
context_set = context.eval_node(to_evaluate[0])
for trailer in to_evaluate[1:]:
context_set = eval_trailer(context, context_set, trailer)
param_names = []
for context in context_set:
for signature in context.get_signatures():
for param_name in signature.get_param_names():
if param_name.string_name == name.value:
param_names.append(param_name)
return param_names
elif node_type == 'dotted_name': # Is a decorator.
index = par.children.index(name)
if index > 0:
new_dotted = helpers.deep_ast_copy(par)
new_dotted.children[index - 1:] = []
values = context.eval_node(new_dotted)
return unite(
value.py__getattribute__(name, name_context=context, is_goto=True)
for value in values
)
if node_type == 'trailer' and par.children[0] == '.':
values = helpers.evaluate_call_of_leaf(context, name, cut_own_trailer=True)
return unite(
value.py__getattribute__(name, name_context=context, is_goto=True)
for value in values
)
else:
stmt = tree.search_ancestor(
name, 'expr_stmt', 'lambdef'
) or name
if stmt.type == 'lambdef':
stmt = name
return context.py__getattribute__(
name,
position=stmt.start_pos,
search_global=True, is_goto=True
)
def goto(self, context, name):
stmt = name.get_definition()
par = name.parent
if par.type == 'argument' and par.children[1] == '=' and par.children[
0] == name:
# Named param goto.
trailer = par.parent
if trailer.type == 'arglist':
trailer = trailer.parent
if trailer.type != 'classdef':
if trailer.type == 'decorator':
types = self.eval_element(context, trailer.children[1])
else:
i = trailer.parent.children.index(trailer)
to_evaluate = trailer.parent.children[:i]
types = self.eval_element(context, to_evaluate[0])
for trailer in to_evaluate[1:]:
types = self.eval_trailer(context, types, trailer)
param_names = []
for typ in types:
try:
get_param_names = typ.get_param_names
except AttributeError:
pass
else:
for param_name in get_param_names():
if param_name.string_name == name.value:
param_names.append(param_name)
return param_names
elif par.type == 'expr_stmt' and name in par.get_defined_names():
# Only take the parent, because if it's more complicated than just
# a name it's something you can "goto" again.
return [TreeNameDefinition(context, name)]
elif par.type == 'param' and par.name:
return [ParamName(context, name)]
elif isinstance(
par,
(tree.Param, tree.Function, tree.Class)) and par.name is name:
return [TreeNameDefinition(context, name)]
elif isinstance(stmt, tree.Import):
module_names = imports.infer_import(context, name, is_goto=True)
return module_names
elif par.type == 'dotted_name': # Is a decorator.
index = par.children.index(name)
if index > 0:
new_dotted = helpers.deep_ast_copy(par)
new_dotted.children[index - 1:] = []
values = self.eval_element(context, new_dotted)
return unite(
value.py__getattribute__(
name, name_context=context, is_goto=True)
for value in values)
if par.type == 'trailer' and par.children[0] == '.':
values = helpers.evaluate_call_of_leaf(context,
name,
cut_own_trailer=True)
return unite(
value.py__getattribute__(
name, name_context=context, is_goto=True)
for value in values)
else:
if stmt.type != 'expr_stmt':
# We only need to adjust the start_pos for statements, because
# there the name cannot be used.
stmt = name
return context.py__getattribute__(name,
position=stmt.start_pos,
search_global=True,
is_goto=True)
def goto(self, context, name):
definition = name.get_definition(import_name_always=True)
if definition is not None:
type_ = definition.type
if type_ == 'expr_stmt':
# Only take the parent, because if it's more complicated than just
# a name it's something you can "goto" again.
is_simple_name = name.parent.type not in ('power', 'trailer')
if is_simple_name:
return [TreeNameDefinition(context, name)]
elif type_ == 'param':
return [ParamName(context, name)]
elif type_ in ('funcdef', 'classdef'):
return [TreeNameDefinition(context, name)]
elif type_ in ('import_from', 'import_name'):
module_names = imports.infer_import(context, name, is_goto=True)
return module_names
par = name.parent
node_type = par.type
if node_type == 'argument' and par.children[1] == '=' and par.children[0] == name:
# Named param goto.
trailer = par.parent
if trailer.type == 'arglist':
trailer = trailer.parent
if trailer.type != 'classdef':
if trailer.type == 'decorator':
context_set = context.eval_node(trailer.children[1])
else:
i = trailer.parent.children.index(trailer)
to_evaluate = trailer.parent.children[:i]
if to_evaluate[0] == 'await':
to_evaluate.pop(0)
context_set = context.eval_node(to_evaluate[0])
for trailer in to_evaluate[1:]:
context_set = eval_trailer(context, context_set, trailer)
param_names = []
for context in context_set:
try:
get_param_names = context.get_param_names
except AttributeError:
pass
else:
for param_name in get_param_names():
if param_name.string_name == name.value:
param_names.append(param_name)
return param_names
elif node_type == 'dotted_name': # Is a decorator.
index = par.children.index(name)
if index > 0:
new_dotted = helpers.deep_ast_copy(par)
new_dotted.children[index - 1:] = []
values = context.eval_node(new_dotted)
return unite(
value.py__getattribute__(name, name_context=context, is_goto=True)
for value in values
)
if node_type == 'trailer' and par.children[0] == '.':
values = helpers.evaluate_call_of_leaf(context, name, cut_own_trailer=True)
return unite(
value.py__getattribute__(name, name_context=context, is_goto=True)
for value in values
)
else:
stmt = tree.search_ancestor(
name, 'expr_stmt', 'lambdef'
) or name
if stmt.type == 'lambdef':
stmt = name
return context.py__getattribute__(
name,
position=stmt.start_pos,
search_global=True, is_goto=True
)
def tree_name_to_contexts(evaluator, context, tree_name):
context_set = ContextSet()
module_node = context.get_root_context().tree_node
if module_node is not None:
names = module_node.get_used_names().get(tree_name.value, [])
for name in names:
expr_stmt = name.parent
correct_scope = parser_utils.get_parent_scope(name) == context.tree_node
if expr_stmt.type == "expr_stmt" and expr_stmt.children[1].type == "annassign" and correct_scope:
context_set |= _evaluate_for_annotation(context, expr_stmt.children[1].children[1])
if context_set:
return context_set
types = []
node = tree_name.get_definition(import_name_always=True)
if node is None:
node = tree_name.parent
if node.type == 'global_stmt':
context = evaluator.create_context(context, tree_name)
finder = NameFinder(evaluator, context, context, tree_name.value)
filters = finder.get_filters(search_global=True)
# For global_stmt lookups, we only need the first possible scope,
# which means the function itself.
filters = [next(filters)]
return finder.find(filters, attribute_lookup=False)
elif node.type not in ('import_from', 'import_name'):
raise ValueError("Should not happen. type: %s", node.type)
typ = node.type
if typ == 'for_stmt':
types = pep0484.find_type_from_comment_hint_for(context, node, tree_name)
if types:
return types
if typ == 'with_stmt':
types = pep0484.find_type_from_comment_hint_with(context, node, tree_name)
if types:
return types
if typ in ('for_stmt', 'comp_for'):
try:
types = context.predefined_names[node][tree_name.value]
except KeyError:
cn = ContextualizedNode(context, node.children[3])
for_types = iterate_contexts(
cn.infer(),
contextualized_node=cn,
is_async=node.parent.type == 'async_stmt',
)
c_node = ContextualizedName(context, tree_name)
types = check_tuple_assignments(evaluator, c_node, for_types)
elif typ == 'expr_stmt':
types = _remove_statements(evaluator, context, node, tree_name)
elif typ == 'with_stmt':
context_managers = context.eval_node(node.get_test_node_from_name(tree_name))
enter_methods = context_managers.py__getattribute__(u'__enter__')
return enter_methods.execute_evaluated()
elif typ in ('import_from', 'import_name'):
types = imports.infer_import(context, tree_name)
elif typ in ('funcdef', 'classdef'):
types = _apply_decorators(context, node)
elif typ == 'try_stmt':
# TODO an exception can also be a tuple. Check for those.
# TODO check for types that are not classes and add it to
# the static analysis report.
exceptions = context.eval_node(tree_name.get_previous_sibling().get_previous_sibling())
types = exceptions.execute_evaluated()
else:
raise ValueError("Should not happen. type: %s" % typ)
return types
def goto(self, context, name):
stmt = name.get_definition()
par = name.parent
if par.type == 'argument' and par.children[1] == '=' and par.children[0] == name:
# Named param goto.
trailer = par.parent
if trailer.type == 'arglist':
trailer = trailer.parent
if trailer.type != 'classdef':
if trailer.type == 'decorator':
types = self.eval_element(context, trailer.children[1])
else:
i = trailer.parent.children.index(trailer)
to_evaluate = trailer.parent.children[:i]
types = self.eval_element(context, to_evaluate[0])
for trailer in to_evaluate[1:]:
types = self.eval_trailer(context, types, trailer)
param_names = []
for typ in types:
try:
get_param_names = typ.get_param_names
except AttributeError:
pass
else:
for param_name in get_param_names():
if param_name.string_name == name.value:
param_names.append(param_name)
return param_names
elif par.type == 'expr_stmt' and name in par.get_defined_names():
# Only take the parent, because if it's more complicated than just
# a name it's something you can "goto" again.
return [TreeNameDefinition(context, name)]
elif par.type == 'param' and par.name:
return [ParamName(context, name)]
elif isinstance(par, (tree.Param, tree.Function, tree.Class)) and par.name is name:
return [TreeNameDefinition(context, name)]
elif isinstance(stmt, tree.Import):
module_names = imports.infer_import(context, name, is_goto=True)
return module_names
elif par.type == 'dotted_name': # Is a decorator.
index = par.children.index(name)
if index > 0:
new_dotted = helpers.deep_ast_copy(par)
new_dotted.children[index - 1:] = []
values = self.eval_element(context, new_dotted)
return unite(
value.py__getattribute__(name, name_context=context, is_goto=True)
for value in values
)
if par.type == 'trailer' and par.children[0] == '.':
values = helpers.evaluate_call_of_leaf(context, name, cut_own_trailer=True)
return unite(
value.py__getattribute__(name, name_context=context, is_goto=True)
for value in values
)
else:
if stmt.type != 'expr_stmt':
# We only need to adjust the start_pos for statements, because
# there the name cannot be used.
stmt = name
return context.py__getattribute__(
name,
position=stmt.start_pos,
search_global=True, is_goto=True
)
def tree_name_to_contexts(evaluator, context, tree_name):
context_set = NO_CONTEXTS
module_node = context.get_root_context().tree_node
# First check for annotations, like: `foo: int = 3`
if module_node is not None:
names = module_node.get_used_names().get(tree_name.value, [])
for name in names:
expr_stmt = name.parent
if expr_stmt.type == "expr_stmt" and expr_stmt.children[
1].type == "annassign":
correct_scope = parser_utils.get_parent_scope(
name) == context.tree_node
if correct_scope:
context_set |= annotation.eval_annotation(
context,
expr_stmt.children[1].children[1]).execute_annotation(
)
if context_set:
return context_set
types = []
node = tree_name.get_definition(import_name_always=True)
if node is None:
node = tree_name.parent
if node.type == 'global_stmt':
context = evaluator.create_context(context, tree_name)
finder = NameFinder(evaluator, context, context, tree_name.value)
filters = finder.get_filters(search_global=True)
# For global_stmt lookups, we only need the first possible scope,
# which means the function itself.
filters = [next(filters)]
return finder.find(filters, attribute_lookup=False)
elif node.type not in ('import_from', 'import_name'):
context = evaluator.create_context(context, tree_name)
return eval_atom(context, tree_name)
typ = node.type
if typ == 'for_stmt':
types = annotation.find_type_from_comment_hint_for(
context, node, tree_name)
if types:
return types
if typ == 'with_stmt':
types = annotation.find_type_from_comment_hint_with(
context, node, tree_name)
if types:
return types
if typ in ('for_stmt', 'comp_for', 'sync_comp_for'):
try:
types = context.predefined_names[node][tree_name.value]
except KeyError:
cn = ContextualizedNode(context, node.children[3])
for_types = iterate_contexts(
cn.infer(),
contextualized_node=cn,
is_async=node.parent.type == 'async_stmt',
)
c_node = ContextualizedName(context, tree_name)
types = check_tuple_assignments(evaluator, c_node, for_types)
elif typ == 'expr_stmt':
types = _remove_statements(evaluator, context, node, tree_name)
elif typ == 'with_stmt':
context_managers = context.eval_node(
node.get_test_node_from_name(tree_name))
enter_methods = context_managers.py__getattribute__(u'__enter__')
return enter_methods.execute_evaluated()
elif typ in ('import_from', 'import_name'):
types = imports.infer_import(context, tree_name)
elif typ in ('funcdef', 'classdef'):
types = _apply_decorators(context, node)
elif typ == 'try_stmt':
# TODO an exception can also be a tuple. Check for those.
# TODO check for types that are not classes and add it to
# the static analysis report.
exceptions = context.eval_node(
tree_name.get_previous_sibling().get_previous_sibling())
types = exceptions.execute_evaluated()
elif node.type == 'param':
types = NO_CONTEXTS
else:
raise ValueError("Should not happen. type: %s" % typ)
return types
