Files
mesh-controller/vendor/github.com/jackc/pgx/v5/pgproto3/describe.go
T
jochen e1f5d4fdf0 Vendor every dependency, so no build fetches the host's validator (hq to-be 45 D1)
The controller imports mesh-host/validate through a replace onto the forge
that holds it, and every build — the build agent's go build in a fresh
toolchain container, the Dockerfile's go mod download — would have fetched
it through the public proxy and checksum database at build time: a merge
breaking main on the network, the class Phase 1 removes. vendor/ is
committed; go builds from it with nothing fetched, and refuses to build
when it and go.mod disagree, so a pin moved without go mod vendor fails at
once. The Dockerfile copies vendor/ and builds with GOPROXY=off.
2026-10-06 10:29:10 +02:00

81 lines
1.9 KiB
Go

package pgproto3
import (
"bytes"
"encoding/json"
"errors"
)
type Describe struct {
ObjectType byte // 'S' = prepared statement, 'P' = portal
Name string
}
// Frontend identifies this message as sendable by a PostgreSQL frontend.
func (*Describe) 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 *Describe) Decode(src []byte) error {
if len(src) < 2 {
return &invalidMessageFormatErr{messageType: "Describe"}
}
dst.ObjectType = src[0]
rp := 1
idx := bytes.IndexByte(src[rp:], 0)
if idx != len(src[rp:])-1 {
return &invalidMessageFormatErr{messageType: "Describe"}
}
dst.Name = string(src[rp : len(src)-1])
return nil
}
// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
func (src *Describe) Encode(dst []byte) ([]byte, error) {
dst, sp := beginMessage(dst, 'D')
dst = append(dst, src.ObjectType)
dst = append(dst, src.Name...)
dst = append(dst, 0)
return finishMessage(dst, sp)
}
// MarshalJSON implements encoding/json.Marshaler.
func (src Describe) MarshalJSON() ([]byte, error) {
return json.Marshal(struct {
Type string
ObjectType string
Name string
}{
Type: "Describe",
ObjectType: string(src.ObjectType),
Name: src.Name,
})
}
// UnmarshalJSON implements encoding/json.Unmarshaler.
func (dst *Describe) UnmarshalJSON(data []byte) error {
// Ignore null, like in the main JSON package.
if string(data) == "null" {
return nil
}
var msg struct {
ObjectType string
Name string
}
if err := json.Unmarshal(data, &msg); err != nil {
return err
}
if len(msg.ObjectType) != 1 {
return errors.New("invalid length for Describe.ObjectType")
}
dst.ObjectType = msg.ObjectType[0]
dst.Name = msg.Name
return nil
}