Fix callgraph issue on kirin 0.17.17 (#463)

Author: david-pl

pyproject.toml

@@ -13,7 +13,7 @@ requires-python = ">=3.10"
 dependencies = [
     "numpy>=1.22.0",
     "scipy>=1.13.1",
-    "kirin-toolchain~=0.17.0",
+    "kirin-toolchain~=0.17.17",
     "rich>=13.9.4",
     "pydantic>=1.3.0,<2.11.0",
     "pandas>=2.2.3",

src/bloqade/qasm2/emit/target.py

@@ -129,7 +129,11 @@ def emit(self, entry: ir.Method) -> ast.MainProgram:
             cg = CallGraph(entry)
             target_gate = EmitQASM2Gate(self.gate_target)
 
-            for _, fn in cg.defs.items():
+            for _, fns in cg.defs.items():
+                if len(fns) != 1:
+                    raise ValueError("Incorrect callgraph")
+
+                (fn,) = fns
                 if fn is entry:
                     continue