public static void WeaveSetBeforeReturns(MethodWeavingContext methodWeavingContext)
{
MethodBody methodDefinitionBody = methodWeavingContext.MethodDefinition.Body;
List <Instruction> returns = methodDefinitionBody.Instructions.Where(x => x.OpCode == OpCodes.Ret).ToList();
ILProcessor processor = methodDefinitionBody.GetILProcessor();
// TODO: Skip "ret" created above
foreach (Instruction returnInstruction in returns.Skip(1))
{
ILProcessorContext processorContext = processor.Before(returnInstruction)
.Append(x => x.Create(OpCodes.Stloc, methodWeavingContext.ResultVariableIndex.Value));
processorContext = processorContext.Append(x => x.Create(OpCodes.Ldarg_0))
.Append(x => x.Create(OpCodes.Call, methodWeavingContext.ClassWeavingContext.CacheGetterMethod))
.Append(x => x.Create(OpCodes.Ldloc, methodWeavingContext.CacheKeyVariableIndex.Value))
.Append(x => x.Create(OpCodes.Ldloc, methodWeavingContext.ResultVariableIndex.Value))
.Append(x => x.Create(OpCodes.Call,
methodWeavingContext.ClassWeavingContext.References.GetGenericSetMethod(methodWeavingContext.MethodDefinition
.ReturnType)));
// Not necessary, just return the return value from .Set
////.Append(x => x.Create(OpCodes.Pop))
////.Append(x => x.Create(OpCodes.Ldloc, index));
}
}
public static void WeaveSetBeforeReturns(MethodWeavingContext methodWeavingContext)
{
if (methodWeavingContext == null)
{
throw new ArgumentNullException(nameof(methodWeavingContext));
}
CustomAttribute cacheAttribute =
methodWeavingContext.MethodDefinition.TryGetCacheAttribute(methodWeavingContext.ClassWeavingContext.References);
if (cacheAttribute == null)
{
cacheAttribute =
methodWeavingContext.ClassWeavingContext.TypeDefinition.TryGetCacheAttribute(methodWeavingContext.ClassWeavingContext
.References);
}
MethodBody methodDefinitionBody = methodWeavingContext.MethodDefinition.Body;
List <Instruction> returns = methodDefinitionBody.Instructions.Where(x => x.OpCode == OpCodes.Ret).ToList();
ILProcessor processor = methodDefinitionBody.GetILProcessor();
// TODO: Skip "ret" created above
foreach (Instruction returnInstruction in returns.Skip(1))
{
ILProcessorContext processorContext = processor.Before(returnInstruction)
.Append(x => x.Create(OpCodes.Stloc, methodWeavingContext.ResultVariableIndex.Value));
processorContext = processorContext.Append(x => x.Create(OpCodes.Ldarg_0))
.Append(x => x.Create(OpCodes.Call, methodWeavingContext.ClassWeavingContext.CacheGetterMethod))
.Append(x => x.Create(OpCodes.Ldloc, methodWeavingContext.CacheKeyVariableIndex.Value))
.Append(x => x.Create(OpCodes.Ldloc, methodWeavingContext.ResultVariableIndex.Value));
if (cacheAttribute.Properties.Any())
{
processorContext = processorContext.Append(x => x.Create(OpCodes.Newobj,
methodWeavingContext.ClassWeavingContext.References.MemoryCacheEntryOptionsConstructor));
foreach (CustomAttributeNamedArgument customAttributeNamedArgument in cacheAttribute.Properties)
{
switch (customAttributeNamedArgument.Name)
{
case "AbsoluteExpirationRelativeToNow":
processorContext = processorContext.Append(x => x.Create(OpCodes.Dup))
.Append(x => x.Create(OpCodes.Ldc_R8, (double)customAttributeNamedArgument.Argument.Value))
.Append(x => x.Create(OpCodes.Call,
methodWeavingContext.ClassWeavingContext.References.TimeSpanFromSecondsMethod))
.Append(x => x.Create(OpCodes.Newobj,
methodWeavingContext.ClassWeavingContext.References.NullableTimeSpanConstructor))
.Append(x => x.Create(OpCodes.Callvirt,
methodWeavingContext.ClassWeavingContext.References.MemoryCacheEntryOptionsAbsoluteExpirationRelativeToNowSetter));
break;
case "SlidingExpiration":
processorContext = processorContext.Append(x => x.Create(OpCodes.Dup))
.Append(x => x.Create(OpCodes.Ldc_R8, (double)customAttributeNamedArgument.Argument.Value))
.Append(x => x.Create(OpCodes.Call,
methodWeavingContext.ClassWeavingContext.References.TimeSpanFromSecondsMethod))
.Append(x => x.Create(OpCodes.Newobj,
methodWeavingContext.ClassWeavingContext.References.NullableTimeSpanConstructor))
.Append(x => x.Create(OpCodes.Callvirt,
methodWeavingContext.ClassWeavingContext.References.MemoryCacheEntryOptionsSlidingExpirationSetter));
break;
case "Priority":
processorContext = processorContext.Append(x => x.Create(OpCodes.Dup))
.Append(x => x.Create(OpCodes.Ldc_I4, (int)customAttributeNamedArgument.Argument.Value))
.Append(x => x.Create(OpCodes.Callvirt,
methodWeavingContext.ClassWeavingContext.References.MemoryCacheEntryOptionsPrioritySetter));
break;
}
}
processorContext = processorContext.Append(x => x.Create(OpCodes.Call,
methodWeavingContext.ClassWeavingContext.References.GetGenericSetMethodWithMemoryCacheEntryOptions(
methodWeavingContext.MethodDefinition.ReturnType)));
}
else
{
processorContext = processorContext.Append(x => x.Create(OpCodes.Call,
methodWeavingContext.ClassWeavingContext.References.GetGenericSetMethod(methodWeavingContext.MethodDefinition
.ReturnType)));
}
// Not necessary, just return the return value from .Set
////.Append(x => x.Create(OpCodes.Pop))
////.Append(x => x.Create(OpCodes.Ldloc, index));
}
}
