From 6ea4d2c82de80efc87708e5e182034b7c6c2019e Mon Sep 17 00:00:00 2001
From: Gibheer <gibheer+git@zero-knowledge.org>
Date: Thu, 5 Sep 2024 19:38:25 +0200
Subject: switch from github.com/lib/pq to github.com/jackc/pgx/v5

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.
---
 .../jackc/pgx/v5/pgproto3/parameter_description.go | 67 ++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 vendor/github.com/jackc/pgx/v5/pgproto3/parameter_description.go

(limited to 'vendor/github.com/jackc/pgx/v5/pgproto3/parameter_description.go')

diff --git a/vendor/github.com/jackc/pgx/v5/pgproto3/parameter_description.go b/vendor/github.com/jackc/pgx/v5/pgproto3/parameter_description.go
new file mode 100644
index 0000000..1ef27b7
--- /dev/null
+++ b/vendor/github.com/jackc/pgx/v5/pgproto3/parameter_description.go
@@ -0,0 +1,67 @@
+package pgproto3
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/json"
+	"errors"
+	"math"
+
+	"github.com/jackc/pgx/v5/internal/pgio"
+)
+
+type ParameterDescription struct {
+	ParameterOIDs []uint32
+}
+
+// Backend identifies this message as sendable by the PostgreSQL backend.
+func (*ParameterDescription) 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 *ParameterDescription) Decode(src []byte) error {
+	buf := bytes.NewBuffer(src)
+
+	if buf.Len() < 2 {
+		return &invalidMessageFormatErr{messageType: "ParameterDescription"}
+	}
+
+	// Reported parameter count will be incorrect when number of args is greater than uint16
+	buf.Next(2)
+	// Instead infer parameter count by remaining size of message
+	parameterCount := buf.Len() / 4
+
+	*dst = ParameterDescription{ParameterOIDs: make([]uint32, parameterCount)}
+
+	for i := 0; i < parameterCount; i++ {
+		dst.ParameterOIDs[i] = binary.BigEndian.Uint32(buf.Next(4))
+	}
+
+	return nil
+}
+
+// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
+func (src *ParameterDescription) Encode(dst []byte) ([]byte, error) {
+	dst, sp := beginMessage(dst, 't')
+
+	if len(src.ParameterOIDs) > math.MaxUint16 {
+		return nil, errors.New("too many parameter oids")
+	}
+	dst = pgio.AppendUint16(dst, uint16(len(src.ParameterOIDs)))
+	for _, oid := range src.ParameterOIDs {
+		dst = pgio.AppendUint32(dst, oid)
+	}
+
+	return finishMessage(dst, sp)
+}
+
+// MarshalJSON implements encoding/json.Marshaler.
+func (src ParameterDescription) MarshalJSON() ([]byte, error) {
+	return json.Marshal(struct {
+		Type          string
+		ParameterOIDs []uint32
+	}{
+		Type:          "ParameterDescription",
+		ParameterOIDs: src.ParameterOIDs,
+	})
+}
-- 
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