errors

Project-specific exception types.

AnthemCXError

Bases: Exception

An expected, user-facing error such as unsupported input or an invalid program.

These are reported to the user as a clean error message (without a traceback); they are caught at the top level in __main__. Internal invariant violations (i.e. conditions that can only arise from a bug) should keep raising a plain exception such as RuntimeError so that they surface with a full traceback.