Function ResolveType

postgres/parser/sem/tree/type_name.go:137–164

ResolveType converts a ResolvableTypeReference into a *types.T.

(
	ctx context.Context, ref ResolvableTypeReference, resolver TypeReferenceResolver,
)

// ResolveType converts a ResolvableTypeReference into a *types.T.
func ResolveType(
	ctx context.Context, ref ResolvableTypeReference, resolver TypeReferenceResolver,
) (*types.T, error) {
	switch t := ref.(type) {
	case *types.T:
		return t, nil
	case *ArrayTypeReference:
		typ, err := ResolveType(ctx, t.ElementType, resolver)
		if err != nil {
			return nil, err
		}
		return types.MakeArray(typ), nil
	case *UnresolvedObjectName:
		if resolver == nil {
			// If we don't have a resolver, we can't actually resolve this
			// name into a type.
			return nil, pgerror.Newf(pgcode.UndefinedObject, "type %q does not exist", t)
		}
		return resolver.ResolveType(ctx, t)
	case *OIDTypeReference:
		if resolver == nil {
			return nil, pgerror.Newf(pgcode.UndefinedObject, "type OID %d does not exist", t.OID)
		}
		return resolver.ResolveTypeByOID(ctx, t.OID)
	default:
		return nil, errors.AssertionFailedf("unknown resolvable type reference type %s", t)
	}
}

// FormatTypeReference formats a ResolvableTypeReference.
func (ctx *FmtCtx) FormatTypeReference(ref ResolvableTypeReference) {