Soquet to _Soquet, _QVar, Soquet and QVar

qualtran/__init__.py

@@ -46,8 +46,11 @@
     CompositeBloq,
     BloqBuilder,
     DidNotFlattenAnythingError,
+    Soquet,
     SoquetT,
     ConnectionT,
+    QVar,
+    QVarT,
 )
 
 from ._infra.data_types import (
@@ -84,14 +87,7 @@
 
 # Internal imports: none
 # External imports: none
-from ._infra.quantum_graph import (
-    BloqInstance,
-    Connection,
-    DanglingT,
-    LeftDangle,
-    RightDangle,
-    Soquet,
-)
+from ._infra.quantum_graph import BloqInstance, Connection, DanglingT, LeftDangle, RightDangle
 
 from ._infra.gate_with_registers import GateWithRegisters
 

qualtran/_infra/adjoint.py

@@ -18,20 +18,28 @@
 
 from attrs import frozen
 
-from .composite_bloq import _binst_to_cxns, _cxns_to_soq_dict, _map_soqs, _reg_to_soq, BloqBuilder
+from .composite_bloq import (
+    _binst_to_cxns,
+    _cxns_to_soq_dict,
+    _map_soqs,
+    _reg_to_soq,
+    _SoquetT,
+    BloqBuilder,
+    QVarT,
+)
 from .gate_with_registers import GateWithRegisters
 from .quantum_graph import LeftDangle, RightDangle
 from .registers import Signature
 
 if TYPE_CHECKING:
     import cirq
 
-    from qualtran import Bloq, CompositeBloq, Register, Signature, SoquetT
+    from qualtran import Bloq, CompositeBloq, Register, Signature
     from qualtran.drawing import WireSymbol
     from qualtran.resource_counting import BloqCountDictT, SympySymbolAllocator
 
 
-def _adjoint_final_soqs(cbloq: 'CompositeBloq', new_signature: Signature) -> Dict[str, 'SoquetT']:
+def _adjoint_final_soqs(cbloq: 'CompositeBloq', new_signature: Signature) -> Dict[str, '_SoquetT']:
     """`CompositeBloq.final_soqs()` but backwards."""
     if LeftDangle not in cbloq._binst_graph:
         return {}
@@ -57,15 +65,15 @@ def _adjoint_cbloq(cbloq: 'CompositeBloq') -> 'CompositeBloq':
     # First, we reverse the registers to initialize the BloqBuilder.
     old_signature = cbloq.signature
     new_signature = cbloq.signature.adjoint()
-    old_i_soqs = [_reg_to_soq(RightDangle, reg) for reg in old_signature.rights()]
-    new_i_soqs = [_reg_to_soq(LeftDangle, reg) for reg in new_signature.lefts()]
-    soq_map: List[Tuple[SoquetT, SoquetT]] = list(zip(old_i_soqs, new_i_soqs))
 
     # Then we reverse the order of subbloqs
     bloqnections = reversed(list(cbloq.iter_bloqnections()))
 
     # And add subbloq.adjoint() back in for each subbloq.
     bb, _ = BloqBuilder.from_signature(new_signature)
+    old_i_soqs = [_reg_to_soq(RightDangle, reg) for reg in old_signature.rights()]
+    new_i_soqs = [bb._reg_to_qvar(LeftDangle, reg) for reg in new_signature.lefts()]
+    soq_map: List[Tuple[_SoquetT, QVarT]] = list(zip(old_i_soqs, new_i_soqs))
     for binst, preds, succs in bloqnections:
         # Instead of get_me returning the right element of a predecessor connection,
         # it's the left element of a successor connection.

qualtran/_infra/composite_bloq.ipynb

@@ -343,7 +343,7 @@
     "bb, _ = BloqBuilder.from_signature(cbloq.signature)\n",
     "\n",
     "# We'll have to \"map\" the soquets from our template cbloq to our new one\n",
-    "soq_map: List[Tuple[SoquetT, SoquetT]] = []\n",
+    "soq_map = bb.initial_soq_map(cbloq.signature.lefts())\n",
     "    \n",
     "# Iteration yields each bloq instance as well as its input and output soquets.\n",
     "for binst, in_soqs, old_out_soqs in cbloq.iter_bloqsoqs():\n",
@@ -512,8 +512,8 @@
     "# Go through and decompose each subbloq\n",
     "# We'll manually code this up in this notebook since this isn't a useful operation.\n",
     "bb, _ = BloqBuilder.from_signature(flat_three_p.signature)\n",
-    "soq_map: List[Tuple[SoquetT, SoquetT]] = []\n",
-    "    \n",
+    "soq_map: List[Tuple[SoquetT, SoquetT]] = bb.initial_soq_map(flat_three_p.signature.lefts())\n",
+    "\n",
     "for binst, in_soqs, old_out_soqs in flat_three_p.iter_bloqsoqs():\n",
     "    in_soqs = bb.map_soqs(in_soqs, soq_map)\n",
     "    \n",