def test_cellvar_freevar(self):
concrete = ConcreteBytecode()
concrete.cellvars = ["cell"]
concrete.freevars = ["free"]
concrete.append(ConcreteInstr("LOAD_DEREF", 0))
concrete.append(ConcreteInstr("LOAD_DEREF", 1))
code = concrete.to_code()
concrete = ConcreteBytecode.from_code(code)
self.assertEqual(concrete.cellvars, ["cell"])
self.assertEqual(concrete.freevars, ["free"])
self.assertEqual(
list(concrete),
[
ConcreteInstr("LOAD_DEREF", 0, lineno=1),
ConcreteInstr("LOAD_DEREF", 1, lineno=1),
],
)
bytecode = concrete.to_bytecode()
self.assertEqual(bytecode.cellvars, ["cell"])
self.assertEqual(
list(bytecode),
[
Instr("LOAD_DEREF", CellVar("cell"), lineno=1),
Instr("LOAD_DEREF", FreeVar("free"), lineno=1),
],
)
def test_cellvar(self):
concrete = ConcreteBytecode()
concrete.cellvars = ["x"]
concrete.append(ConcreteInstr("LOAD_DEREF", 0))
code = concrete.to_code()
concrete = ConcreteBytecode.from_code(code)
self.assertEqual(concrete.cellvars, ["x"])
self.assertEqual(concrete.freevars, [])
self.assertEqual(list(concrete), [ConcreteInstr("LOAD_DEREF", 0, lineno=1)])
bytecode = concrete.to_bytecode()
self.assertEqual(bytecode.cellvars, ["x"])
self.assertEqual(list(bytecode), [Instr("LOAD_DEREF", CellVar("x"), lineno=1)])
def test_load_classderef(self):
concrete = ConcreteBytecode()
concrete.cellvars = ["__class__"]
concrete.freevars = ["__class__"]
concrete.extend([
ConcreteInstr("LOAD_CLASSDEREF", 1),
ConcreteInstr("STORE_DEREF", 1)
])
bytecode = concrete.to_bytecode()
self.assertEqual(bytecode.freevars, ["__class__"])
self.assertEqual(bytecode.cellvars, ["__class__"])
self.assertEqual(
list(bytecode),
[
Instr("LOAD_CLASSDEREF", FreeVar("__class__"), lineno=1),
Instr("STORE_DEREF", FreeVar("__class__"), lineno=1),
],
)
concrete = bytecode.to_concrete_bytecode()
self.assertEqual(concrete.freevars, ["__class__"])
self.assertEqual(concrete.cellvars, ["__class__"])
self.assertEqual(
list(concrete),
[
ConcreteInstr("LOAD_CLASSDEREF", 1, lineno=1),
ConcreteInstr("STORE_DEREF", 1, lineno=1),
],
)
code = concrete.to_code()
self.assertEqual(code.co_freevars, ("__class__", ))
self.assertEqual(code.co_cellvars, ("__class__", ))
self.assertEqual(
code.co_code,
b"\x94\x01\x89\x01",
)
