internal void Commit()
{
try
{
// non-greedy so they are all reset
if (!Prefixes.HasChanges(true) & !Suffixes.HasChanges(true) & !Transpilers.HasChanges(true) & !PostTranspilers.HasChanges(true))
{
return;
}
Revert();
if (Prefixes.Count == 0 && Suffixes.Count == 0 && Transpilers.Count == 0 && PostTranspilers.Count == 0)
{
return;
}
_log.Log(PrintMsil ? LogLevel.Info : LogLevel.Debug,
$"Begin patching {_method.DeclaringType?.FullName}#{_method.Name}({string.Join(", ", _method.GetParameters().Select(x => x.ParameterType.Name))})");
var patch = ComposePatchedMethod();
_revertAddress = AssemblyMemory.GetMethodBodyStart(_method);
var newAddress = AssemblyMemory.GetMethodBodyStart(patch);
_revertData = AssemblyMemory.WriteJump(_revertAddress, newAddress);
_pinnedPatch = GCHandle.Alloc(patch);
_log.Log(PrintMsil ? LogLevel.Info : LogLevel.Debug,
$"Done patching {_method.DeclaringType?.FullName}#{_method.Name}({string.Join(", ", _method.GetParameters().Select(x => x.ParameterType.Name))})");
}
catch (Exception exception)
{
_log.Fatal(exception, $"Error patching {_method.DeclaringType?.FullName}#{_method}");
throw;
}
}
internal void Revert()
{
if (_pinnedPatch.HasValue)
{
_log.Debug($"Revert {_method.DeclaringType?.FullName}#{_method.Name}({string.Join(", ", _method.GetParameters().Select(x => x.ParameterType.Name))})");
AssemblyMemory.WriteMemory(_revertAddress, _revertData);
_revertData = null;
_pinnedPatch.Value.Free();
_pinnedPatch = null;
}
}