增加websocket支持

vendor/github.com/jackc/pgx/v5/pgproto3/function_call.go

@@ -2,8 +2,6 @@ package pgproto3
 
 import (
 	"encoding/binary"
-	"errors"
-	"math"
 
 	"github.com/jackc/pgx/v5/internal/pgio"
 )
@@ -73,21 +71,15 @@ func (dst *FunctionCall) Decode(src []byte) error {
 }
 
 // Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
-func (src *FunctionCall) Encode(dst []byte) ([]byte, error) {
-	dst, sp := beginMessage(dst, 'F')
+func (src *FunctionCall) Encode(dst []byte) []byte {
+	dst = append(dst, 'F')
+	sp := len(dst)
+	dst = pgio.AppendUint32(dst, 0) // Unknown length, set it at the end
 	dst = pgio.AppendUint32(dst, src.Function)
-
-	if len(src.ArgFormatCodes) > math.MaxUint16 {
-		return nil, errors.New("too many arg format codes")
-	}
 	dst = pgio.AppendUint16(dst, uint16(len(src.ArgFormatCodes)))
 	for _, argFormatCode := range src.ArgFormatCodes {
 		dst = pgio.AppendUint16(dst, argFormatCode)
 	}
-
-	if len(src.Arguments) > math.MaxUint16 {
-		return nil, errors.New("too many arguments")
-	}
 	dst = pgio.AppendUint16(dst, uint16(len(src.Arguments)))
 	for _, argument := range src.Arguments {
 		if argument == nil {
@@ -98,5 +90,6 @@ func (src *FunctionCall) Encode(dst []byte) ([]byte, error) {
 		}
 	}
 	dst = pgio.AppendUint16(dst, src.ResultFormatCode)
-	return finishMessage(dst, sp)
+	pgio.SetInt32(dst[sp:], int32(len(dst[sp:])))
+	return dst
 }