Merge branch 'qibo_global_patch' into qibo_wire_patch

src/qibolab/backends.py

@@ -3,7 +3,6 @@
 
 import numpy as np
 from qibo import __version__ as qibo_version
-from qibo import gates
 from qibo.backends import NumpyBackend
 from qibo.config import raise_error
 from qibo.models import Circuit
@@ -67,29 +66,17 @@ def natives(self) -> list[str]:
         """Returns the list of native gates supported by the platform."""
         compiler = Compiler.default()
         natives = [g.__name__ for g in list(compiler.rules)]
+        calibrated = self.platform.pairs
 
         check_2q = ["CZ", "CNOT"]
         for gate in check_2q:
-            if gate in natives:
-                for pair in self.connectivity:
-                    logical_pair = tuple(
-                        self.platform.wire_names.index(q) for q in pair
-                    )
-                    if self._is_gate_calibrated(
-                        getattr(gates, gate)(*logical_pair), compiler
-                    ):
-                        break
-                else:
-                    natives.remove(gate)
-        return natives
+            if gate in natives and all(
+                getattr(calibrated[p].native_gates, gate) is None
+                for p in self.connectivity
+            ):
+                natives.remove(gate)
 
-    def _is_gate_calibrated(self, gate, compiler) -> bool:
-        """Helper method to check if a gate is calibrated."""
-        try:
-            compiler[type(gate)](gate, self.platform)
-            return True
-        except ValueError:
-            return False
+        return natives
 
     def apply_gate(self, gate, state, nqubits):  # pragma: no cover
         raise_error(NotImplementedError, "Qibolab cannot apply gates directly.")

tests/test_backends.py

@@ -61,6 +61,24 @@ def test_natives():
     }
 
 
+def test_natives_no_cz_cnot():
+    platform = create_platform("dummy")
+    for p in platform.pairs:
+        platform.pairs[p].native_gates.CZ = None
+        platform.pairs[p].native_gates.CNOT = None
+
+    backend = QibolabBackend(platform)
+    assert set(backend.natives) == {
+        "I",
+        "Z",
+        "RZ",
+        "U3",
+        "GPI2",
+        "GPI",
+        "M",
+    }
+
+
 def test_execute_circuit_initial_state():
     backend = QibolabBackend("dummy")
     circuit = Circuit(1)