def test_iadd_isub():
q = qp.Quint(qp.NamedQureg('test', 10))
with pytest.raises(TypeError):
q += None
with qp.RandomSim(measure_bias=0.5):
with qp.capture() as out:
q += 5
assert qp.ccz_count(out) == 18
with qp.RandomSim(measure_bias=0.5):
with qp.capture() as out:
q += 4
assert qp.ccz_count(out) == 14
with qp.RandomSim(measure_bias=0.5):
with qp.capture() as out:
q -= 3
assert qp.ccz_count(out) == 18
q2 = qp.Quint(qp.NamedQureg('test2', 5))
with qp.RandomSim(measure_bias=0.5):
with qp.capture() as out:
q += q2
assert qp.ccz_count(out) == 18
# Classes can specify custom behavior via __riadd__.
class Riadd:
def __riadd__(self, other):
qp.phase_flip()
return other
with qp.capture() as out:
q += Riadd()
assert out == [('phase_flip', qp.QubitIntersection.ALWAYS)]
def test_len_getitem():
h = 'test'
q = qp.Quint(qp.NamedQureg(h, 10))
assert len(q) == 10
with pytest.raises(IndexError):
_ = q[-100]
assert q[0] == qp.Qubit(h, 0)
assert q[-1] == qp.Qubit(h, 9)
assert q[2:4].qureg == qp.Quint(qp.RangeQureg(
qp.NamedQureg(h, 10), range(2, 4))).qureg
def __getitem__(self, item):
if isinstance(item, bool):
return self.values[int(item)]
if isinstance(item, int):
return self.values[item]
if isinstance(item, slice):
return LookupTable(self.values[item])
if isinstance(item, tuple):
if all(isinstance(e, qp.Quint) for e in item):
reg = qp.RawQureg(q for e in item[::-1] for q in e)
return qp.LookupRValue(self, qp.Quint(reg))
if isinstance(item, qp.Quint):
return qp.LookupRValue(self, item)
if isinstance(item, qp.Qubit):
return qp.LookupRValue(self, qp.Quint(item.qureg))
raise NotImplementedError('Strange index: {}'.format(item))
def test_quint_borrowed():
@qp.semi_quantum
def f(x: qp.Quint.Borrowed):
return x
q = qp.Quint(qp.NamedQureg('a', 10))
assert f(q) is q
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
v = f(2)
assert isinstance(v, qp.Quint)
cirq.testing.assert_has_diagram(circuit,
"""
_f_x[0]: -------alloc-------Mxc--------cxM---release---
| | | |
_f_x[1]: -------alloc---X---Mxc--------cxM---release---
global phase: pi
""",
use_unicode_characters=False)
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
v = f(True)
assert isinstance(v, qp.Quint)
cirq.testing.assert_has_diagram(circuit,
"""
_f_x: ----------alloc---X---Mxc--------cxM---release---
global phase: pi
""",
use_unicode_characters=False)
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
rval = qp.LookupTable([1, 2, 3])[q]
v = f(rval)
assert isinstance(v, qp.Quint)
cirq.testing.assert_has_diagram(circuit,
"""
_f_x[0]: ----------alloc-------------------------------------X------------------------------------------X-----------------------------Mxc---X---@---X-------------------Z-------------------------------------X---------@---------Mxc--------cxM---cxM---release---
| | | | | | | | | | |
_f_x[1]: ----------alloc-------------------------------------|--------X---------------------------------X-----------------------------Mxc-------X---@-------------------|---Z---------------------------------@---Mxc---|---cxM--------------------cxM---release---
| | | | | | |
_lookup_prefix: -----------alloc---X---X---alloc---@X---@X---@---@X---@---Mxc---@---cxM---release---X---@---Mxc-------cxM---release-------------|-------alloc---X---X---@---@---X---Mxc-------cxM---release-------------|------------------------------------------
| | | | | |
a[0]: -----------------------------|---------------@----------------------------Z---------------------------------------------------------------@---------------|-------------------------------------------------------Z------------------------------------------
| |
a[1]: -----------------------------@------------------------------------------------------------------------------Z---------------------------------------------@-------------------------Z------------------------------------------------------------------------
global phase: pi
""",
use_unicode_characters=False)
with pytest.raises(TypeError, match='quantum integer expression'):
_ = f('test')
def test_qubit():
@qp.semi_quantum
def f(x: qp.Qubit):
return x
q = qp.Qubit('a', 10)
assert f(q) is q
with pytest.raises(TypeError, match='Expected a qp.Qubit'):
_ = f(2)
with pytest.raises(TypeError, match='Expected a qp.Qubit'):
_ = f('a')
with pytest.raises(TypeError, match='Expected a qp.Qubit'):
_ = f(qp.Quint(qp.NamedQureg('a', 10)))
with pytest.raises(TypeError, match='Expected a qp.Qubit'):
_ = f(qp.BoolRValue(True))
def test_multiple():
@qp.semi_quantum
def add(target: qp.Quint,
offset: qp.Quint.Borrowed,
*,
control: qp.Qubit.Control = False):
assert isinstance(target, qp.Quint)
assert isinstance(offset, qp.Quint)
assert isinstance(control, qp.QubitIntersection)
target += offset & qp.controlled_by(control)
a = qp.Quint(qp.NamedQureg('a', 5))
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
add(a, 10, control=True)
assert len(circuit) >= 5
def test_init():
q1 = qp.Quint(qp.NamedQureg('test', 10))
q2 = qp.Quint(qp.NamedQureg('test', 10))
assert q1.qureg == q2.qureg
assert str(q1) == str(q2) == 'test'
def test_ixor():
q = qp.Quint(qp.NamedQureg('test', 10))
with pytest.raises(TypeError):
q ^= None
with qp.LogCirqCircuit() as circuit:
q ^= 5
cirq.testing.assert_has_diagram(circuit, """
test[0]: ---X---
|
test[2]: ---X---
""", use_unicode_characters=False)
q2 = qp.Quint(qp.NamedQureg('test2', 5))
with qp.LogCirqCircuit() as circuit:
q ^= q2
cirq.testing.assert_has_diagram(circuit, """
test2[0]: ---@-------------------
|
test2[1]: ---|---@---------------
| |
test2[2]: ---|---|---@-----------
| | |
test2[3]: ---|---|---|---@-------
| | | |
test2[4]: ---|---|---|---|---@---
| | | | |
test[0]: ----X---|---|---|---|---
| | | |
test[1]: --------X---|---|---|---
| | |
test[2]: ------------X---|---|---
| |
test[3]: ----------------X---|---
|
test[4]: --------------------X---
""", use_unicode_characters=False)
q3 = qp.Quint(qp.NamedQureg('test3', 5))
c = qp.Qubit('c')
with qp.LogCirqCircuit() as circuit:
q ^= q3 & qp.controlled_by(c)
cirq.testing.assert_has_diagram(circuit, """
c: ----------@---@---@---@---@---
| | | | |
test3[0]: ---@---|---|---|---|---
| | | | |
test3[1]: ---|---@---|---|---|---
| | | | |
test3[2]: ---|---|---@---|---|---
| | | | |
test3[3]: ---|---|---|---@---|---
| | | | |
test3[4]: ---|---|---|---|---@---
| | | | |
test[0]: ----X---|---|---|---|---
| | | |
test[1]: --------X---|---|---|---
| | |
test[2]: ------------X---|---|---
| |
test[3]: ----------------X---|---
|
test[4]: --------------------X---
""", use_unicode_characters=False)
# Classes can specify custom behavior via __rixor__.
class Rixor:
def __rixor__(self, other):
qp.phase_flip()
return other
with qp.capture() as out:
q ^= Rixor()
assert out == [('phase_flip', qp.QubitIntersection.ALWAYS)]
def test_mul_rmul():
q = qp.Quint(qp.NamedQureg('test', 10))
assert q * 5 == 5 * q == qp.ScaledIntRValue(q, 5)
def test_set_item_blocks():
q = qp.Quint(qp.NamedQureg('test', 10))
with pytest.raises(NotImplementedError):
q[2] = qp.Qubit()
def test_qubit_control():
@qp.semi_quantum
def f(x: qp.Qubit.Control):
return x
q = qp.Qubit('a', 10)
q2 = qp.Qubit('b', 8)
# Note: The lack of capture context means we are implicitly asserting the following invokations perform no
# quantum operations such as allocating a qubit.
# Definitely false.
assert f(False) == qp.QubitIntersection.NEVER
assert f(qp.QubitIntersection.NEVER) == qp.QubitIntersection.NEVER
# Definitely true.
assert f(qp.QubitIntersection.ALWAYS) == qp.QubitIntersection.ALWAYS
assert f(None) == qp.QubitIntersection.ALWAYS
assert f(True) == qp.QubitIntersection.ALWAYS
# Single qubit.
assert f(q) == qp.QubitIntersection((q, ))
assert f(qp.QubitIntersection((q, ))) == qp.QubitIntersection((q, ))
# Multi qubit intersection.
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
v = f(q & q2)
assert isinstance(v, qp.QubitIntersection)
del v
cirq.testing.assert_has_diagram(circuit,
"""
_f_x: ----alloc---X---Mxc-------cxM---release---
|
a[10]: -----------@---------@-------------------
| |
b[8]: ------------@---------Z-------------------
""",
use_unicode_characters=False)
# Arbitrary expression
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
rval = qp.Quint(qp.NamedQureg('a', 2)) > qp.Quint(
qp.NamedQureg('b', 2))
v = f(rval)
assert isinstance(v, qp.QubitIntersection)
q = v.qubits[0]
assert q.name == '_f_x'
del q
del v
cirq.testing.assert_has_diagram(circuit,
"""
_do_if_less_than_or_equal: -----------alloc---@---X---@-------------------------------@---X---@---Mxc---cxM---release---------alloc---@---X---@-------------------------------@---X---@---Mxc---cxM---release-------------------
| | | | | | | | | | | |
_f_x: ------------------------alloc-----------|---|---|---------------X---------------|---|---|-------------------------Mxc-----------|---|---|-------------------------------|---|---|-------------------------cxM---release---
| | | | | | | | | | | | |
a[0]: ----------------------------------------|---@---X---@---X---@---|---@---X---@---X---@---|---------------------------------------|---@---X---@---X---@-------@---X---@---X---@---|-----------------------------------------
| | | | | | | | | | | | | | | | | | | | |
a[1]: ----------------------------------------|-------|---|---@---X---@---X---@---|---|-------|---------------------------------------|-------|---|---@---X---Z---X---@---|---|-------|-----------------------------------------
| | | | | | | | | | | | | | | |
b[0]: ----------------------------------------X-------@---|-------|-------|-------|---@-------X---------------------------------------X-------@---|-------|-------|-------|---@-------X-----------------------------------------
| | | | | | | |
b[1]: ----------------------------------------------------X-------@-------@-------X---------------------------------------------------------------X-------@-------@-------X-----------------------------------------------------
""",
use_unicode_characters=False)
with pytest.raises(TypeError, match='quantum control expression'):
_ = f('test')
with pytest.raises(TypeError, match='quantum control expression'):
_ = f(qp.Quint(qp.NamedQureg('a', 10)))
with pytest.raises(TypeError, match='quantum control expression'):
_ = f(qp.Quint(qp.NamedQureg('a', 10)))
def do_measure(self, qureg: 'qp.Qureg', reset: bool) -> int:
reg = self.quint_buf(qp.Quint(qureg))
result = int(reg)
if reset:
reg[:] = 0
return result
def resolve(self, sim_state: 'qp.ClassicalSimState', allow_mutate: bool):
if not allow_mutate:
return [q.resolve(sim_state, False) for q in self]
return sim_state.quint_buf(qp.Quint(self))
def resolve(self, sim_state: 'qp.ClassicalSimState', allow_mutate: bool):
buf = sim_state.quint_buf(qp.Quint(self.qureg))
return buf if allow_mutate else bool(int(buf))
def __getitem__(self, item):
if isinstance(item, int):
return self.qureg[item]
return qp.Quint(self.qureg[item])
def resolve(self, sim_state: 'qp.ClassicalSimState', allow_mutate: bool) -> bool:
v = qp.Quint(qp.RawQureg(self.qubits)).resolve(sim_state, False)
return self.bit and v == (1 << len(self.qubits)) - 1
def test_qubit_borrowed():
@qp.semi_quantum
def f(x: qp.Qubit.Borrowed):
return x
q = qp.Qubit('a', 10)
assert f(q) is q
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
v = f(True)
assert isinstance(v, qp.Qubit)
del v
cirq.testing.assert_has_diagram(circuit,
"""
_f_x: ----------alloc---X---Mxc--------cxM---release---
global phase: pi
""",
use_unicode_characters=False)
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
v = f(0)
assert isinstance(v, qp.Qubit)
del v
cirq.testing.assert_has_diagram(circuit,
"""
_f_x: ---alloc---Mxc---cxM---release---
""",
use_unicode_characters=False)
with qp.RandomSim(measure_bias=1):
with qp.LogCirqCircuit() as circuit:
rval = qp.Quint(qp.NamedQureg('a', 3)) > qp.Quint(
qp.NamedQureg('b', 3))
v = f(rval)
assert isinstance(v, qp.Qubit)
del v
cirq.testing.assert_has_diagram(circuit,
"""
_do_if_less_than_or_equal: -----------alloc---@---X---@-------------------------------------------------------@---X---@---Mxc---cxM---release---------alloc---@---X---@-------------------------------------------------------@---X---@---Mxc---cxM---release-------------------
| | | | | | | | | | | |
_f_x: ------------------------alloc-----------|---|---|---------------------------X---------------------------|---|---|-------------------------Mxc-----------|---|---|-------------------------------------------------------|---|---|-------------------------cxM---release---
| | | | | | | | | | | | |
a[0]: ----------------------------------------|---@---X---@---X---@---------------|---------------@---X---@---X---@---|---------------------------------------|---@---X---@---X---@-------------------------------@---X---@---X---@---|-----------------------------------------
| | | | | | | | | | | | | | | | | | | | |
a[1]: ----------------------------------------|-------|---|---@---X---@---X---@---|---@---X---@---X---@---|---|-------|---------------------------------------|-------|---|---@---X---@---X---@-------@---X---@---X---@---|---|-------|-----------------------------------------
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
a[2]: ----------------------------------------|-------|---|-------|---|---@---X---@---X---@---|---|-------|---|-------|---------------------------------------|-------|---|-------|---|---@---X---Z---X---@---|---|-------|---|-------|-----------------------------------------
| | | | | | | | | | | | | | | | | | | | | | | |
b[0]: ----------------------------------------X-------@---|-------|---|-------|-------|-------|---|-------|---@-------X---------------------------------------X-------@---|-------|---|-------|-------|-------|---|-------|---@-------X-----------------------------------------
| | | | | | | | | | | | | | | |
b[1]: ----------------------------------------------------X-------@---|-------|-------|-------|---@-------X---------------------------------------------------------------X-------@---|-------|-------|-------|---@-------X-----------------------------------------------------
| | | | | | | |
b[2]: ----------------------------------------------------------------X-------@-------@-------X---------------------------------------------------------------------------------------X-------@-------@-------X-----------------------------------------------------------------
""",
use_unicode_characters=False)
with pytest.raises(TypeError, match='quantum boolean expression'):
_ = f('test')