public bool DoPatch(Queue <CodeInstruction> buffer, int origPos, int written)
{
if (buffer.Count < match.Length)
{
return(false);
}
if (QuickPatcher.StartsWith(buffer, match))
{
//match!
if (Target == null)
{
throw new Exception("Can't steal labels, target not set!");
}
var enumr = buffer.GetEnumerator();
for (int i = 0; i < markOffset; i++)
{
enumr.MoveNext();
}
enumr.MoveNext();
var mark = enumr.Current;
if (mark.labels.Count == 0)
{
throw new Exception("Can't steal labels, mark didn't have any labels to steal!");
}
foreach (var label in mark.labels)
{
Target.labels.Add(label);
}
mark.labels.Clear();
PatchedOriginalLocation = origPos;
PatchedWrittenLocation = written;
if (DebugVerbosity >= 1)
{
Debug.Log(string.Format("PATCH: Stole {6} labels from [{2} {3}], gave them to [{4} {5}] at {0} / {1} ", PatchedOriginalLocation, PatchedWrittenLocation, mark.opcode, mark.operand, Target.opcode, Target.operand, Target.labels.Count));
}
return(true);
}
return(false);
}
public bool DoPatch(Queue <CodeInstruction> buffer, int origPos, int written)
{
if (buffer.Count < match.Length)
{
return(false);
}
if (QuickPatcher.StartsWith(buffer, match))
{
//match!
if (insert != null)
{
//Debug.Log("Before: \n" + string.Join("\n", new List<string>(buffer.Select(i => i.ToString())).ToArray() ) );
if (!after)
{
//Ugh. C#'s Queue class kinda sucks.
//This is like, the worst way to do this, but Queue's interface is so strict we don't have a choice.
CodeInstruction[] orig = buffer.ToArray();
buffer.Clear();
foreach (var e in insert)
{
buffer.Enqueue(e);
}
foreach (var e in orig)
{
buffer.Enqueue(e);
}
}
else
{
CodeInstruction[] orig = null;
//If the buffer is exactly the size of the match, we can cheat, we *only* need to append the patch.
if (buffer.Count != match.Length)
{
//Otherwise, we have to split the Queue to make sure our patch is inserted only after the match.
orig = buffer.ToArray();
buffer.Clear(); //clear the buffer
//Enqueue the match again.
for (int i = 0; i < match.Length; i++)
{
buffer.Enqueue(orig[i]);
}
}
//Enqueue the patch.
foreach (var e in insert)
{
buffer.Enqueue(e);
}
//Append what's left of the buffer if necessary
if (orig != null)
{
for (int i = match.Length; i < orig.Length; i++)
{
buffer.Enqueue(orig[i]);
}
}
}
//Debug.Log("After: \n" + string.Join("\n", new List<string>(buffer.Select(i => i.ToString())).ToArray()));
} //else Null patch
PatchedOriginalLocation = !after ? origPos : origPos + match.Length;
PatchedWrittenLocation = !after ? written : written + match.Length;
if (DebugVerbosity >= 1)
{
Debug.Log(string.Format("PATCH: Inserted patch ({2} instructions) at {0} / {1} ", PatchedOriginalLocation, PatchedWrittenLocation, insert == null ? 0 : insert.Length));
}
return(true);
}
return(false);
}
