| from mypy.plugin import CallableType, FunctionSigContext, Plugin |
| |
| |
| class FunctionSigPlugin(Plugin): |
| def get_function_signature_hook(self, fullname): |
| if fullname == '__main__.dynamic_signature': |
| return my_hook |
| return None |
| |
| |
| def my_hook(ctx: FunctionSigContext) -> CallableType: |
| arg1_args = ctx.args[0] |
| if len(arg1_args) != 1: |
| return ctx.default_signature |
| arg1_type = ctx.api.get_expression_type(arg1_args[0]) |
| return ctx.default_signature.copy_modified( |
| arg_types=[arg1_type], |
| ret_type=arg1_type, |
| ) |
| |
| |
| def plugin(version): |
| return FunctionSigPlugin |
