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vendor/github.com/google/uuid/sql.go
59 строк
1 KB
Madhav Jivrajani
*: Bump version of vmware/govmomi
12 янв 2023, 12:38
12 янв 2023, 12:38
8b064fa
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// Copyright 2016 Google Inc. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package uuid import ( "database/sql/driver" "fmt" ) // Scan implements sql.Scanner so UUIDs can be read from databases transparently. // Currently, database types that map to string and []byte are supported. Please // consult database-specific driver documentation for matching types. func (uuid *UUID) Scan(src interface{}) error { switch src := src.(type) { case nil: return nil case string: // if an empty UUID comes from a table, we return a null UUID if src == "" { return nil } // see Parse for required string format u, err := Parse(src) if err != nil { return fmt.Errorf("Scan: %v", err) } *uuid = u case []byte: // if an empty UUID comes from a table, we return a null UUID if len(src) == 0 { return nil } // assumes a simple slice of bytes if 16 bytes // otherwise attempts to parse if len(src) != 16 { return uuid.Scan(string(src)) } copy((*uuid)[:], src) default: return fmt.Errorf("Scan: unable to scan type %T into UUID", src) } return nil } // Value implements sql.Valuer so that UUIDs can be written to databases // transparently. Currently, UUIDs map to strings. Please consult // database-specific driver documentation for matching types. func (uuid UUID) Value() (driver.Value, error) { return uuid.String(), nil }