def visit_file(self, file: MypyFile, fnam: str, mod_id: str, options: Options) -> None:
self.pyversion = options.python_version
self.platform = options.platform
self.cur_mod_id = mod_id
self.cur_mod_node = file
self.options = options
for i, defn in enumerate(file.defs):
defn.accept(self)
if isinstance(defn, AssertStmt) and assert_will_always_fail(defn, options):
# We've encountered an assert that's always false,
# e.g. assert sys.platform == 'lol'. Truncate the
# list of statements. This mutates file.defs too.
del file.defs[i + 1:]
break
def visit_file(self, file: MypyFile, fnam: str, mod_id: str, options: Options) -> None:
self.pyversion = options.python_version
self.platform = options.platform
self.cur_mod_id = mod_id
self.cur_mod_node = file
self.options = options
self.is_global_scope = True
for i, defn in enumerate(file.defs):
defn.accept(self)
if isinstance(defn, AssertStmt) and assert_will_always_fail(defn, options):
# We've encountered an assert that's always false,
# e.g. assert sys.platform == 'lol'. Truncate the
# list of statements. This mutates file.defs too.
del file.defs[i + 1:]
break
def visit_file(self, file: MypyFile, fnam: str, mod_id: str,
options: Options) -> None:
"""Perform the first analysis pass.
Populate module global table. Resolve the full names of
definitions not nested within functions and construct type
info structures, but do not resolve inter-definition
references such as base classes.
Also add implicit definitions such as __name__.
In this phase we don't resolve imports. For 'from ... import',
we generate dummy symbol table nodes for the imported names,
and these will get resolved in later phases of semantic
analysis.
"""
if options.allow_redefinition:
# Perform renaming across the AST to allow variable redefinitions
file.accept(VariableRenameVisitor())
sem = self.sem
self.sem.options = options # Needed because we sometimes call into it
self.pyversion = options.python_version
self.platform = options.platform
sem.cur_mod_id = mod_id
sem.cur_mod_node = file
sem.errors.set_file(fnam, mod_id, scope=sem.scope)
sem.globals = SymbolTable()
sem.global_decls = [set()]
sem.nonlocal_decls = [set()]
sem.block_depth = [0]
sem.scope.enter_file(mod_id)
defs = file.defs
with state.strict_optional_set(options.strict_optional):
# Add implicit definitions of module '__name__' etc.
for name, t in implicit_module_attrs.items():
# unicode docstrings should be accepted in Python 2
if name == '__doc__':
if self.pyversion >= (3, 0):
typ = UnboundType('__builtins__.str') # type: Type
else:
typ = UnionType([
UnboundType('__builtins__.str'),
UnboundType('__builtins__.unicode')
])
else:
assert t is not None, 'type should be specified for {}'.format(
name)
typ = UnboundType(t)
v = Var(name, typ)
v._fullname = self.sem.qualified_name(name)
self.sem.globals[name] = SymbolTableNode(GDEF, v)
for i, d in enumerate(defs):
d.accept(self)
if isinstance(d, AssertStmt) and assert_will_always_fail(
d, options):
# We've encountered an assert that's always false,
# e.g. assert sys.platform == 'lol'. Truncate the
# list of statements. This mutates file.defs too.
del defs[i + 1:]
break
# Add implicit definition of literals/keywords to builtins, as we
# cannot define a variable with them explicitly.
if mod_id == 'builtins':
literal_types = [
('None', NoneTyp()),
# reveal_type is a mypy-only function that gives an error with
# the type of its arg.
('reveal_type', AnyType(TypeOfAny.special_form)),
# reveal_locals is a mypy-only function that gives an error with the types of
# locals
('reveal_locals', AnyType(TypeOfAny.special_form)),
] # type: List[Tuple[str, Type]]
# TODO(ddfisher): This guard is only needed because mypy defines
# fake builtins for its tests which often don't define bool. If
# mypy is fast enough that we no longer need those, this
# conditional check should be removed.
if 'bool' in self.sem.globals:
bool_type = self.sem.named_type('bool')
literal_types.extend([
('True', bool_type),
('False', bool_type),
('__debug__', bool_type),
])
else:
# We are running tests without 'bool' in builtins.
# TODO: Find a permanent solution to this problem.
# Maybe add 'bool' to all fixtures?
literal_types.append(
('True', AnyType(TypeOfAny.special_form)))
for name, typ in literal_types:
v = Var(name, typ)
v._fullname = self.sem.qualified_name(name)
self.sem.globals[name] = SymbolTableNode(GDEF, v)
del self.sem.options
sem.scope.leave()
def visit_file(self, file: MypyFile, fnam: str, mod_id: str, options: Options) -> None:
"""Perform the first analysis pass.
Populate module global table. Resolve the full names of
definitions not nested within functions and construct type
info structures, but do not resolve inter-definition
references such as base classes.
Also add implicit definitions such as __name__.
In this phase we don't resolve imports. For 'from ... import',
we generate dummy symbol table nodes for the imported names,
and these will get resolved in later phases of semantic
analysis.
"""
if options.allow_redefinition:
# Perform renaming across the AST to allow variable redefinitions
file.accept(VariableRenameVisitor())
sem = self.sem
self.sem.options = options # Needed because we sometimes call into it
self.pyversion = options.python_version
self.platform = options.platform
sem.cur_mod_id = mod_id
sem.cur_mod_node = file
sem.errors.set_file(fnam, mod_id, scope=sem.scope)
sem.globals = SymbolTable()
sem.global_decls = [set()]
sem.nonlocal_decls = [set()]
sem.block_depth = [0]
sem.scope.enter_file(mod_id)
defs = file.defs
with state.strict_optional_set(options.strict_optional):
# Add implicit definitions of module '__name__' etc.
for name, t in implicit_module_attrs.items():
# unicode docstrings should be accepted in Python 2
if name == '__doc__':
if self.pyversion >= (3, 0):
typ = UnboundType('__builtins__.str') # type: Type
else:
typ = UnionType([UnboundType('__builtins__.str'),
UnboundType('__builtins__.unicode')])
else:
assert t is not None, 'type should be specified for {}'.format(name)
typ = UnboundType(t)
v = Var(name, typ)
v._fullname = self.sem.qualified_name(name)
self.sem.globals[name] = SymbolTableNode(GDEF, v)
for i, d in enumerate(defs):
d.accept(self)
if isinstance(d, AssertStmt) and assert_will_always_fail(d, options):
# We've encountered an assert that's always false,
# e.g. assert sys.platform == 'lol'. Truncate the
# list of statements. This mutates file.defs too.
del defs[i + 1:]
break
# Add implicit definition of literals/keywords to builtins, as we
# cannot define a variable with them explicitly.
if mod_id == 'builtins':
literal_types = [
('None', NoneTyp()),
# reveal_type is a mypy-only function that gives an error with
# the type of its arg.
('reveal_type', AnyType(TypeOfAny.special_form)),
# reveal_locals is a mypy-only function that gives an error with the types of
# locals
('reveal_locals', AnyType(TypeOfAny.special_form)),
] # type: List[Tuple[str, Type]]
# TODO(ddfisher): This guard is only needed because mypy defines
# fake builtins for its tests which often don't define bool. If
# mypy is fast enough that we no longer need those, this
# conditional check should be removed.
if 'bool' in self.sem.globals:
bool_type = self.sem.named_type('bool')
literal_types.extend([
('True', bool_type),
('False', bool_type),
('__debug__', bool_type),
])
else:
# We are running tests without 'bool' in builtins.
# TODO: Find a permanent solution to this problem.
# Maybe add 'bool' to all fixtures?
literal_types.append(('True', AnyType(TypeOfAny.special_form)))
for name, typ in literal_types:
v = Var(name, typ)
v._fullname = self.sem.qualified_name(name)
self.sem.globals[name] = SymbolTableNode(GDEF, v)
del self.sem.options
sem.scope.leave()