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path: root/vendor/github.com/jackc/pgx/v5/pgproto3/copy_data.go
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Diffstat (limited to 'vendor/github.com/jackc/pgx/v5/pgproto3/copy_data.go')
-rw-r--r--vendor/github.com/jackc/pgx/v5/pgproto3/copy_data.go59
1 files changed, 59 insertions, 0 deletions
diff --git a/vendor/github.com/jackc/pgx/v5/pgproto3/copy_data.go b/vendor/github.com/jackc/pgx/v5/pgproto3/copy_data.go
new file mode 100644
index 0000000..89ecdd4
--- /dev/null
+++ b/vendor/github.com/jackc/pgx/v5/pgproto3/copy_data.go
@@ -0,0 +1,59 @@
+package pgproto3
+
+import (
+ "encoding/hex"
+ "encoding/json"
+)
+
+type CopyData struct {
+ Data []byte
+}
+
+// Backend identifies this message as sendable by the PostgreSQL backend.
+func (*CopyData) Backend() {}
+
+// Frontend identifies this message as sendable by a PostgreSQL frontend.
+func (*CopyData) Frontend() {}
+
+// Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message
+// type identifier and 4 byte message length.
+func (dst *CopyData) Decode(src []byte) error {
+ dst.Data = src
+ return nil
+}
+
+// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
+func (src *CopyData) Encode(dst []byte) ([]byte, error) {
+ dst, sp := beginMessage(dst, 'd')
+ dst = append(dst, src.Data...)
+ return finishMessage(dst, sp)
+}
+
+// MarshalJSON implements encoding/json.Marshaler.
+func (src CopyData) MarshalJSON() ([]byte, error) {
+ return json.Marshal(struct {
+ Type string
+ Data string
+ }{
+ Type: "CopyData",
+ Data: hex.EncodeToString(src.Data),
+ })
+}
+
+// UnmarshalJSON implements encoding/json.Unmarshaler.
+func (dst *CopyData) UnmarshalJSON(data []byte) error {
+ // Ignore null, like in the main JSON package.
+ if string(data) == "null" {
+ return nil
+ }
+
+ var msg struct {
+ Data string
+ }
+ if err := json.Unmarshal(data, &msg); err != nil {
+ return err
+ }
+
+ dst.Data = []byte(msg.Data)
+ return nil
+}