|
|
import pytestfrom pybind11_tests import ConstructorStats
def test_multiple_inheritance_cpp(): from pybind11_tests import MIType
mt = MIType(3, 4)
assert mt.foo() == 3 assert mt.bar() == 4
def test_multiple_inheritance_mix1(): from pybind11_tests import Base2
class Base1: def __init__(self, i): self.i = i
def foo(self): return self.i
class MITypePy(Base1, Base2): def __init__(self, i, j): Base1.__init__(self, i) Base2.__init__(self, j)
mt = MITypePy(3, 4)
assert mt.foo() == 3 assert mt.bar() == 4
def test_multiple_inheritance_mix2(): from pybind11_tests import Base1
class Base2: def __init__(self, i): self.i = i
def bar(self): return self.i
class MITypePy(Base1, Base2): def __init__(self, i, j): Base1.__init__(self, i) Base2.__init__(self, j)
mt = MITypePy(3, 4)
assert mt.foo() == 3 assert mt.bar() == 4
def test_multiple_inheritance_python(): from pybind11_tests import Base1, Base2
class MI1(Base1, Base2): def __init__(self, i, j): Base1.__init__(self, i) Base2.__init__(self, j)
class B1(object): def v(self): return 1
class MI2(B1, Base1, Base2): def __init__(self, i, j): B1.__init__(self) Base1.__init__(self, i) Base2.__init__(self, j)
class MI3(MI2): def __init__(self, i, j): MI2.__init__(self, i, j)
class MI4(MI3, Base2): def __init__(self, i, j, k): MI2.__init__(self, j, k) Base2.__init__(self, i)
class MI5(Base2, B1, Base1): def __init__(self, i, j): B1.__init__(self) Base1.__init__(self, i) Base2.__init__(self, j)
class MI6(Base2, B1): def __init__(self, i): Base2.__init__(self, i) B1.__init__(self)
class B2(B1): def v(self): return 2
class B3(object): def v(self): return 3
class B4(B3, B2): def v(self): return 4
class MI7(B4, MI6): def __init__(self, i): B4.__init__(self) MI6.__init__(self, i)
class MI8(MI6, B3): def __init__(self, i): MI6.__init__(self, i) B3.__init__(self)
class MI8b(B3, MI6): def __init__(self, i): B3.__init__(self) MI6.__init__(self, i)
mi1 = MI1(1, 2) assert mi1.foo() == 1 assert mi1.bar() == 2
mi2 = MI2(3, 4) assert mi2.v() == 1 assert mi2.foo() == 3 assert mi2.bar() == 4
mi3 = MI3(5, 6) assert mi3.v() == 1 assert mi3.foo() == 5 assert mi3.bar() == 6
mi4 = MI4(7, 8, 9) assert mi4.v() == 1 assert mi4.foo() == 8 assert mi4.bar() == 7
mi5 = MI5(10, 11) assert mi5.v() == 1 assert mi5.foo() == 10 assert mi5.bar() == 11
mi6 = MI6(12) assert mi6.v() == 1 assert mi6.bar() == 12
mi7 = MI7(13) assert mi7.v() == 4 assert mi7.bar() == 13
mi8 = MI8(14) assert mi8.v() == 1 assert mi8.bar() == 14
mi8b = MI8b(15) assert mi8b.v() == 3 assert mi8b.bar() == 15
def test_multiple_inheritance_python_many_bases(): from pybind11_tests import (BaseN1, BaseN2, BaseN3, BaseN4, BaseN5, BaseN6, BaseN7, BaseN8, BaseN9, BaseN10, BaseN11, BaseN12, BaseN13, BaseN14, BaseN15, BaseN16, BaseN17)
class MIMany14(BaseN1, BaseN2, BaseN3, BaseN4): def __init__(self): BaseN1.__init__(self, 1) BaseN2.__init__(self, 2) BaseN3.__init__(self, 3) BaseN4.__init__(self, 4)
class MIMany58(BaseN5, BaseN6, BaseN7, BaseN8): def __init__(self): BaseN5.__init__(self, 5) BaseN6.__init__(self, 6) BaseN7.__init__(self, 7) BaseN8.__init__(self, 8)
class MIMany916(BaseN9, BaseN10, BaseN11, BaseN12, BaseN13, BaseN14, BaseN15, BaseN16): def __init__(self): BaseN9.__init__(self, 9) BaseN10.__init__(self, 10) BaseN11.__init__(self, 11) BaseN12.__init__(self, 12) BaseN13.__init__(self, 13) BaseN14.__init__(self, 14) BaseN15.__init__(self, 15) BaseN16.__init__(self, 16)
class MIMany19(MIMany14, MIMany58, BaseN9): def __init__(self): MIMany14.__init__(self) MIMany58.__init__(self) BaseN9.__init__(self, 9)
class MIMany117(MIMany14, MIMany58, MIMany916, BaseN17): def __init__(self): MIMany14.__init__(self) MIMany58.__init__(self) MIMany916.__init__(self) BaseN17.__init__(self, 17)
# Inherits from 4 registered C++ classes: can fit in one pointer on any modern arch: a = MIMany14() for i in range(1, 4): assert getattr(a, "f" + str(i))() == 2 * i
# Inherits from 8: requires 1/2 pointers worth of holder flags on 32/64-bit arch: b = MIMany916() for i in range(9, 16): assert getattr(b, "f" + str(i))() == 2 * i
# Inherits from 9: requires >= 2 pointers worth of holder flags c = MIMany19() for i in range(1, 9): assert getattr(c, "f" + str(i))() == 2 * i
# Inherits from 17: requires >= 3 pointers worth of holder flags d = MIMany117() for i in range(1, 17): assert getattr(d, "f" + str(i))() == 2 * i
def test_multiple_inheritance_virtbase(): from pybind11_tests import Base12a, bar_base2a, bar_base2a_sharedptr
class MITypePy(Base12a): def __init__(self, i, j): Base12a.__init__(self, i, j)
mt = MITypePy(3, 4) assert mt.bar() == 4 assert bar_base2a(mt) == 4 assert bar_base2a_sharedptr(mt) == 4
def test_mi_static_properties(): """Mixing bases with and without static properties should be possible
and the result should be independent of base definition order"""
from pybind11_tests import mi
for d in (mi.VanillaStaticMix1(), mi.VanillaStaticMix2()): assert d.vanilla() == "Vanilla" assert d.static_func1() == "WithStatic1" assert d.static_func2() == "WithStatic2" assert d.static_func() == d.__class__.__name__
mi.WithStatic1.static_value1 = 1 mi.WithStatic2.static_value2 = 2 assert d.static_value1 == 1 assert d.static_value2 == 2 assert d.static_value == 12
d.static_value1 = 0 assert d.static_value1 == 0 d.static_value2 = 0 assert d.static_value2 == 0 d.static_value = 0 assert d.static_value == 0
@pytest.unsupported_on_pypydef test_mi_dynamic_attributes(): """Mixing bases with and without dynamic attribute support""" from pybind11_tests import mi
for d in (mi.VanillaDictMix1(), mi.VanillaDictMix2()): d.dynamic = 1 assert d.dynamic == 1
def test_mi_unaligned_base(): """Returning an offset (non-first MI) base class pointer should recognize the instance""" from pybind11_tests import I801C, I801D, i801b1_c, i801b2_c, i801b1_d, i801b2_d
n_inst = ConstructorStats.detail_reg_inst()
c = I801C() d = I801D() # + 4 below because we have the two instances, and each instance has offset base I801B2 assert ConstructorStats.detail_reg_inst() == n_inst + 4 b1c = i801b1_c(c) assert b1c is c b2c = i801b2_c(c) assert b2c is c b1d = i801b1_d(d) assert b1d is d b2d = i801b2_d(d) assert b2d is d
assert ConstructorStats.detail_reg_inst() == n_inst + 4 # no extra instances del c, b1c, b2c assert ConstructorStats.detail_reg_inst() == n_inst + 2 del d, b1d, b2d assert ConstructorStats.detail_reg_inst() == n_inst
def test_mi_base_return(): """Tests returning an offset (non-first MI) base class pointer to a derived instance""" from pybind11_tests import (I801B2, I801C, I801D, i801c_b1, i801c_b2, i801d_b1, i801d_b2, i801e_c, i801e_b2)
n_inst = ConstructorStats.detail_reg_inst()
c1 = i801c_b1() assert type(c1) is I801C assert c1.a == 1 assert c1.b == 2
d1 = i801d_b1() assert type(d1) is I801D assert d1.a == 1 assert d1.b == 2
assert ConstructorStats.detail_reg_inst() == n_inst + 4
c2 = i801c_b2() assert type(c2) is I801C assert c2.a == 1 assert c2.b == 2
d2 = i801d_b2() assert type(d2) is I801D assert d2.a == 1 assert d2.b == 2
assert ConstructorStats.detail_reg_inst() == n_inst + 8
del c2 assert ConstructorStats.detail_reg_inst() == n_inst + 6 del c1, d1, d2 assert ConstructorStats.detail_reg_inst() == n_inst
# Returning an unregistered derived type with a registered base; we won't # pick up the derived type, obviously, but should still work (as an object # of whatever type was returned). e1 = i801e_c() assert type(e1) is I801C assert e1.a == 1 assert e1.b == 2
e2 = i801e_b2() assert type(e2) is I801B2 assert e2.b == 2
|
