diff options
author | Gibheer <gibheer+git@zero-knowledge.org> | 2024-09-05 19:38:25 +0200 |
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committer | Gibheer <gibheer+git@zero-knowledge.org> | 2024-09-05 19:38:25 +0200 |
commit | 6ea4d2c82de80efc87708e5e182034b7c6c2019e (patch) | |
tree | 35c0856a929040216c82153ca62d43b27530a887 /vendor/github.com/jackc/pgx/v5/pgproto3/function_call_response.go | |
parent | 6f64eeace1b66639b9380b44e88a8d54850a4306 (diff) |
lib/pq is out of maintenance for some time now, so switch to the newer
more active library. Looks like it finally stabilized after a long time.
Diffstat (limited to 'vendor/github.com/jackc/pgx/v5/pgproto3/function_call_response.go')
-rw-r--r-- | vendor/github.com/jackc/pgx/v5/pgproto3/function_call_response.go | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/vendor/github.com/jackc/pgx/v5/pgproto3/function_call_response.go b/vendor/github.com/jackc/pgx/v5/pgproto3/function_call_response.go new file mode 100644 index 0000000..1f27349 --- /dev/null +++ b/vendor/github.com/jackc/pgx/v5/pgproto3/function_call_response.go @@ -0,0 +1,97 @@ +package pgproto3 + +import ( + "encoding/binary" + "encoding/hex" + "encoding/json" + + "github.com/jackc/pgx/v5/internal/pgio" +) + +type FunctionCallResponse struct { + Result []byte +} + +// Backend identifies this message as sendable by the PostgreSQL backend. +func (*FunctionCallResponse) Backend() {} + +// 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 *FunctionCallResponse) Decode(src []byte) error { + if len(src) < 4 { + return &invalidMessageFormatErr{messageType: "FunctionCallResponse"} + } + rp := 0 + resultSize := int(binary.BigEndian.Uint32(src[rp:])) + rp += 4 + + if resultSize == -1 { + dst.Result = nil + return nil + } + + if len(src[rp:]) != resultSize { + return &invalidMessageFormatErr{messageType: "FunctionCallResponse"} + } + + dst.Result = src[rp:] + return nil +} + +// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length. +func (src *FunctionCallResponse) Encode(dst []byte) ([]byte, error) { + dst, sp := beginMessage(dst, 'V') + + if src.Result == nil { + dst = pgio.AppendInt32(dst, -1) + } else { + dst = pgio.AppendInt32(dst, int32(len(src.Result))) + dst = append(dst, src.Result...) + } + + return finishMessage(dst, sp) +} + +// MarshalJSON implements encoding/json.Marshaler. +func (src FunctionCallResponse) MarshalJSON() ([]byte, error) { + var formattedValue map[string]string + var hasNonPrintable bool + for _, b := range src.Result { + if b < 32 { + hasNonPrintable = true + break + } + } + + if hasNonPrintable { + formattedValue = map[string]string{"binary": hex.EncodeToString(src.Result)} + } else { + formattedValue = map[string]string{"text": string(src.Result)} + } + + return json.Marshal(struct { + Type string + Result map[string]string + }{ + Type: "FunctionCallResponse", + Result: formattedValue, + }) +} + +// UnmarshalJSON implements encoding/json.Unmarshaler. +func (dst *FunctionCallResponse) UnmarshalJSON(data []byte) error { + // Ignore null, like in the main JSON package. + if string(data) == "null" { + return nil + } + + var msg struct { + Result map[string]string + } + err := json.Unmarshal(data, &msg) + if err != nil { + return err + } + dst.Result, err = getValueFromJSON(msg.Result) + return err +} |