class ConstructorMutableAttribsLineNumberFixture:
definition_is_none = None
definition_is_not_a_function = _ast.Pass
constructor_with_empty_body = _ast.FunctionDef(name='__init__', body=[])
try:
constructor_with_immutable = _ast.FunctionDef(
name='__init__',
body=[
_ast.Assign(lineno=1, value=_ast.Tuple(elts=[1, 2, 3])),
_ast.Assign(lineno=2, value=_ast.Str(s='a')),
],
)
except (AttributeError):
constructor_with_immutable = _ast.FunctionDef(
name='__init__',
body=[
_ast.Assign(lineno=1, value=_ast.Tuple(elts=[1, 2, 3])),
_ast.Assign(lineno=3, value=_ast.JoinedStr(values=None)),
],
)
constructor_with_mutable = _ast.FunctionDef(
name='__init__',
body=[
_ast.Assign(lineno=1, value=_ast.List(elts=[1, 2, 3])),
_ast.Assign(lineno=2, value=_ast.Set(elts=[1, 2, 3])),
_ast.Assign(lineno=3, value=_ast.Dict(keys=['a'])),
],
)
def Set(*items):
"""Creates an _ast.Set node.
Args:
*items: The items in the set.
Returns:
An _ast.Set node.
"""
return _ast.Set(elts=list(items))
def BUILD_SET(self, instr):
nitems = instr.oparg
nodes = []
list_ = _ast.Set(elts=nodes, ctx=_ast.Load(), lineno=instr.lineno, col_offset=0)
for i in range(nitems):
nodes.insert(0, self.ast_stack.pop())
self.ast_stack.append(list_)
def test_empty_set(self):
import ast
m = ast.Module(body=[ast.Expr(value=ast.Set(elts=[]))])
ast.fix_missing_locations(m)
compile(m, "<test>", "exec")