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Add support for deep=True to cirq.stratified_circuit transformer #5117

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Merged
merged 2 commits into from
Mar 21, 2022
Merged

Add support for deep=True to cirq.stratified_circuit transformer #5117

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d3cd5b8
Add support for deep=True to cirq.stratified_circuit transformer
tanujkhattar Mar 21, 2022
d823a4a
Merge branch 'master' into stratify_deep
CirqBot Mar 21, 2022
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2 changes: 1 addition & 1 deletion cirq-core/cirq/transformers/stratify.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@
]


@transformer_api.transformer
@transformer_api.transformer(add_deep_support=True)
def stratified_circuit(
circuit: 'cirq.AbstractCircuit',
*,
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37 changes: 37 additions & 0 deletions cirq-core/cirq/transformers/stratify_test.py
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Expand Up @@ -295,6 +295,43 @@ def test_complex_circuit():
)


def test_complex_circuit_deep():
q = cirq.LineQubit.range(5)
c_nested = cirq.FrozenCircuit(
cirq.Moment(
cirq.X(q[0]).with_tags("ignore"),
cirq.ISWAP(q[1], q[2]).with_tags("ignore"),
cirq.Z(q[4]),
),
cirq.Moment(cirq.Z(q[1]), cirq.ISWAP(q[3], q[4])),
cirq.Moment(cirq.ISWAP(q[0], q[1]), cirq.X(q[3])),
cirq.Moment(cirq.X.on_each(q[0])),
)
c_nested_stratified = cirq.FrozenCircuit(
cirq.Moment(cirq.X(q[0]).with_tags("ignore"), cirq.ISWAP(q[1], q[2]).with_tags("ignore")),
cirq.Moment(cirq.Z.on_each(q[1], q[4])),
cirq.Moment(cirq.ISWAP(*q[:2]), cirq.ISWAP(*q[3:])),
cirq.Moment(cirq.X.on_each(q[0], q[3])),
)
c_orig = cirq.Circuit(
c_nested,
cirq.CircuitOperation(c_nested).repeat(5).with_tags("ignore"),
c_nested,
cirq.CircuitOperation(c_nested).repeat(6).with_tags("preserve_tag"),
c_nested,
)
c_expected = cirq.Circuit(
c_nested_stratified,
cirq.CircuitOperation(c_nested).repeat(5).with_tags("ignore"),
c_nested_stratified,
cirq.CircuitOperation(c_nested_stratified).repeat(6).with_tags("preserve_tag"),
c_nested_stratified,
)
context = cirq.TransformerContext(tags_to_ignore=["ignore"], deep=True)
c_stratified = cirq.stratified_circuit(c_orig, context=context, categories=[cirq.X, cirq.Z])
cirq.testing.assert_same_circuits(c_stratified, c_expected)


def test_no_categories_earliest_insert():
q1, q2, q3, q4, q5 = cirq.LineQubit.range(5)
input_circuit = cirq.Circuit(
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