Macro perspective_client::assert_table_api

macro_rules! assert_table_api {
    ($x:ty) => { ... };
}

Assert that an implementation of domain language wrapper for Table implements the expected API. As domain languages have different API needs, a trait isn’t useful for asserting that the entire API is implemented, because the signatures will not match exactly (unless every method is made heavily generic). Instead, this macro complains when a method name is missing.