Typed derive attribute does not match its option schema

Why this fires¶

A namespaced derive attribute does not match the option schema declared by its @derive_for: the option may be unknown, duplicated, missing, non-literal, or have the wrong type. Typed attributes accept named arguments only.

struct DbFieldOpts { primary: bool = false }
@derive_for(DbTable, namespace: db, field_attrs: DbFieldOpts)
fn derive_db_table(info) -> Syntax<.Items> {
  return quote items { impl ${info.ref} {} }
}

struct Account {
  @db(primary: "yes") // TE217: expected bool
  id: int,
}

Fix it¶

Use completion inside @db(...) to select a schema field, then pass a compile-time literal of the declared type.