/// <summary>
/// Add switch registering to a class.
/// </summary>
/// <param name="clazz">The class to register switch.</param>
/// <param name="context">The weaving context.</param>
/// <param name="switchData">Data of switches.</param>
/// <param name="statistics">Weaving statistics.</param>
public static void Weave(TypeDefinition clazz, IWeavingContext context, IReadOnlyList <SwitchInitializingData> switchData, IClassWeavingStatisticsBuilder statistics)
{
#if DEBUG
if (clazz == null)
{
throw new ArgumentNullException("clazz");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
if (switchData == null || !switchData.Any())
{
throw new ArgumentNullException("switchData");
}
if (statistics == null)
{
throw new ArgumentNullException("statistics");
}
#endif
var staticConstructor = clazz.Methods.FirstOrDefault(mthd => mthd.IsStaticConstructor());
MethodDefinition method = null;
ILProcessor processor = null;
if (staticConstructor == null)
{
method = new MethodDefinition(
".cctor",
MethodAttributes.Static | MethodAttributes.HideBySig | MethodAttributes.SpecialName | MethodAttributes.RTSpecialName,
context.GetTypeReference(typeof(void)));
processor = method.Body.GetILProcessor();
method.Body.Instructions.Add(processor.Create(OpCodes.Ret));
clazz.Methods.Add(method);
}
else
{
method = staticConstructor;
processor = method.Body.GetILProcessor();
}
var typeName = clazz.GetFullName();
var instructions = new List <Instruction>();
foreach (var data in switchData)
{
RegisterSwitch(instructions, processor, context, data, typeName);
statistics.AddSwitchWeavingRecord(StatisticsFactory.InitializeSwitchWeavingRecord(typeName, data.Property, data.MethodSignature, data.Aspect, data.Field.Name, data.Value));
}
CompleteSwitchRegistration(method, instructions, processor, context, typeName);
}