mirror of
https://github.com/godotengine/godot.git
synced 2024-12-21 10:25:24 +08:00
101 lines
2.9 KiB
C#
101 lines
2.9 KiB
C#
using System;
|
|
using System.Text;
|
|
|
|
namespace GodotTools.IdeMessaging
|
|
{
|
|
public class MessageDecoder
|
|
{
|
|
private class DecodedMessage
|
|
{
|
|
public MessageKind? Kind;
|
|
public string Id;
|
|
public MessageStatus? Status;
|
|
public readonly StringBuilder Body = new StringBuilder();
|
|
public uint? PendingBodyLines;
|
|
|
|
public void Clear()
|
|
{
|
|
Kind = null;
|
|
Id = null;
|
|
Status = null;
|
|
Body.Clear();
|
|
PendingBodyLines = null;
|
|
}
|
|
|
|
public Message ToMessage()
|
|
{
|
|
if (!Kind.HasValue || Id == null || !Status.HasValue ||
|
|
!PendingBodyLines.HasValue || PendingBodyLines.Value > 0)
|
|
throw new InvalidOperationException();
|
|
|
|
return new Message(Kind.Value, Id, new MessageContent(Status.Value, Body.ToString()));
|
|
}
|
|
}
|
|
|
|
public enum State
|
|
{
|
|
Decoding,
|
|
Decoded,
|
|
Errored
|
|
}
|
|
|
|
private readonly DecodedMessage decodingMessage = new DecodedMessage();
|
|
|
|
public State Decode(string messageLine, out Message decodedMessage)
|
|
{
|
|
decodedMessage = null;
|
|
|
|
if (!decodingMessage.Kind.HasValue)
|
|
{
|
|
if (!Enum.TryParse(messageLine, ignoreCase: true, out MessageKind kind))
|
|
{
|
|
decodingMessage.Clear();
|
|
return State.Errored;
|
|
}
|
|
|
|
decodingMessage.Kind = kind;
|
|
}
|
|
else if (decodingMessage.Id == null)
|
|
{
|
|
decodingMessage.Id = messageLine;
|
|
}
|
|
else if (decodingMessage.Status == null)
|
|
{
|
|
if (!Enum.TryParse(messageLine, ignoreCase: true, out MessageStatus status))
|
|
{
|
|
decodingMessage.Clear();
|
|
return State.Errored;
|
|
}
|
|
|
|
decodingMessage.Status = status;
|
|
}
|
|
else if (decodingMessage.PendingBodyLines == null)
|
|
{
|
|
if (!uint.TryParse(messageLine, out uint pendingBodyLines))
|
|
{
|
|
decodingMessage.Clear();
|
|
return State.Errored;
|
|
}
|
|
|
|
decodingMessage.PendingBodyLines = pendingBodyLines;
|
|
}
|
|
else
|
|
{
|
|
if (decodingMessage.PendingBodyLines > 0)
|
|
{
|
|
decodingMessage.Body.AppendLine(messageLine);
|
|
decodingMessage.PendingBodyLines -= 1;
|
|
}
|
|
else
|
|
{
|
|
decodedMessage = decodingMessage.ToMessage();
|
|
decodingMessage.Clear();
|
|
return State.Decoded;
|
|
}
|
|
}
|
|
|
|
return State.Decoding;
|
|
}
|
|
}
|
|
}
|