Make AST node more descriptive

qiskit/qasm3/ast.py

@@ -596,8 +596,9 @@ class DefaultCase(Expression):
     """An object representing the `default` special label in switch statements."""
 
 
-class SwitchStatementV1(Statement):
-    """AST node for the proposed 'switch-case' extension to OpenQASM 3.
+class SwitchStatementPreview(Statement):
+    """AST node for the proposed 'switch-case' extension to OpenQASM 3, before the syntax was
+    stabilized.  This corresponds to the :attr:`.ExperimentalFeatures.SWITCH_CASE_V1` logic.
 
     The stabilized form of the syntax instead uses :class:`.SwitchStatement`."""
 

qiskit/qasm3/exporter.py

@@ -857,7 +857,7 @@ def case(values, case_block):
 
             return [
                 ast.AssignmentStatement(target, real_target),
-                ast.SwitchStatementV1(
+                ast.SwitchStatementPreview(
                     target,
                     (
                         case(values, block)

qiskit/qasm3/printer.py

@@ -528,7 +528,7 @@ def _visit_SwitchStatement(self, node: ast.SwitchStatement) -> None:
         self.stream.write("}")
         self._end_line()
 
-    def _visit_SwitchStatementV1(self, node: ast.SwitchStatementV1) -> None:
+    def _visit_SwitchStatementPreview(self, node: ast.SwitchStatementPreview) -> None:
         # This is the pre-release syntax, which had lots of extra `break` statements in it.
         self._start_line()
         self.stream.write("switch (")