Rating union for Vendor.score: a bounded decimal rating or a letter-grade string.
Vendor.score
The decimal and string variants are storage-class disjoint, so a stored value singles out its branch by datatype alone (§5.4).
Rating union for
Vendor.score: a bounded decimal rating or a letter-grade string.The decimal and string variants are storage-class disjoint, so a stored value singles out its branch by datatype alone (§5.4).