/// <summary>
/// Initializes and caches the metastate values
/// necessary to invoke the method
/// </summary>
public void PrepForInvocation()
{
if (!_initialized)
{
lock (MethodInfo)
{
if (!_initialized)
{
DynamicMethod = DynamicMethodHandlerFactory.CreateMethod(MethodInfo);
Parameters = MethodInfo.GetParameters();
TakesParamArray = (Parameters.Length == 1 && Parameters[0].ParameterType.Equals(typeof(object[])));
IsInjected = new bool[Parameters.Length];
int index = 0;
foreach (var item in Parameters)
{
if (item.GetCustomAttributes <InjectAttribute>().Any())
{
IsInjected[index] = true;
}
index++;
}
IsAsyncTask = (MethodInfo.ReturnType == typeof(Task));
IsAsyncTaskObject = (MethodInfo.ReturnType.IsGenericType && (MethodInfo.ReturnType.GetGenericTypeDefinition() == typeof(Task <>)));
DataPortalMethodInfo = new DataPortalMethodInfo(MethodInfo);
_initialized = true;
}
}
}
}
public DynamicMethodHandle(System.Reflection.MethodInfo info, params object[] parameters)
{
if (info == null)
{
this.DynamicMethod = null;
}
else
{
this.MethodName = info.Name;
var infoParams = info.GetParameters();
object[] inParams = null;
if (parameters == null)
{
inParams = new object[] { null };
}
else
{
inParams = parameters;
}
var pCount = infoParams.Length;
if (pCount > 0 &&
((pCount == 1 && infoParams[0].ParameterType.IsArray) ||
(infoParams[pCount - 1].GetCustomAttributes(typeof(ParamArrayAttribute), true).Length > 0)))
{
this.HasFinalArrayParam = true;
this.MethodParamsLength = pCount;
this.FinalArrayElementType = infoParams[pCount - 1].ParameterType;
}
this.DynamicMethod = DynamicMethodHandlerFactory.CreateMethod(info);
}
}
private static DynamicCtorDelegate GetCachedConstructor(Type objectType)
{
DynamicCtorDelegate result = null;
if (!_ctorCache.TryGetValue(objectType, out result))
{
lock (_ctorCache)
{
if (!_ctorCache.TryGetValue(objectType, out result))
{
ConstructorInfo info = objectType.GetConstructor(ctorFlags, null, Type.EmptyTypes, null);
if (info == null)
{
throw new NotSupportedException(string.Format(
CultureInfo.CurrentCulture,
"Cannot create instance of Type '{0}'. No public parameterless constructor found.",
objectType));
}
result = DynamicMethodHandlerFactory.CreateConstructor(info);
_ctorCache.Add(objectType, result);
}
}
}
return(result);
}
public DynamicMemberHandle(FieldInfo info) :
this(
info.Name,
info.FieldType,
DynamicMethodHandlerFactory.CreateFieldGetter(info),
DynamicMethodHandlerFactory.CreateFieldSetter(info))
{
}
public DynamicMemberHandle(PropertyInfo info) :
this(
info.Name,
info.PropertyType,
DynamicMethodHandlerFactory.CreatePropertyGetter(info),
DynamicMethodHandlerFactory.CreatePropertySetter(info))
{
}
public DynamicMethodHandle(System.Reflection.MethodInfo info, params object[] parameters)
{
if (info == null)
{
this.DynamicMethod = null;
}
else
{
this.MethodName = info.Name;
var infoParams = info.GetParameters();
object[] inParams = null;
if (parameters == null)
{
inParams = new object[] { null };
}
else
{
inParams = parameters;
}
var pCount = infoParams.Length;
#if NETFX_CORE
var isgeneric = info.ReturnType.IsGenericType();
if (pCount > 0 &&
((pCount == 1 && infoParams[0].ParameterType.IsArray) ||
(infoParams[pCount - 1].GetCustomAttributes(typeof(ParamArrayAttribute), true).Count() > 0)))
#else
var isgeneric = info.ReturnType.IsGenericType;
if (pCount > 0 &&
((pCount == 1 && infoParams[0].ParameterType.IsArray) ||
(infoParams[pCount - 1].GetCustomAttributes(typeof(ParamArrayAttribute), true).Length > 0)))
#endif
{
this.HasFinalArrayParam = true;
this.MethodParamsLength = pCount;
this.FinalArrayElementType = infoParams[pCount - 1].ParameterType;
}
IsAsyncTask = (info.ReturnType == typeof(System.Threading.Tasks.Task));
IsAsyncTaskObject = (isgeneric && (info.ReturnType.GetGenericTypeDefinition() == typeof(System.Threading.Tasks.Task <>)));
this.DynamicMethod = DynamicMethodHandlerFactory.CreateMethod(info);
}
}
private static DynamicCtorDelegate GetCachedConstructor(Type objectType)
{
DynamicCtorDelegate result = null;
var found = false;
try
{
found = _ctorCache.TryGetValue(objectType, out result);
}
catch
{ /* failure will drop into !found block */ }
if (!found)
{
lock (_ctorCache)
{
if (!_ctorCache.TryGetValue(objectType, out result))
{
#if NETFX_CORE
ConstructorInfo info = objectType.GetConstructor(ctorFlags, null, new Type[] { }, null);
#else
ConstructorInfo info = objectType.GetConstructor(ctorFlags, null, Type.EmptyTypes, null);
#endif
if (info == null)
{
throw new NotSupportedException(string.Format(
CultureInfo.CurrentCulture,
"Cannot create instance of Type '{0}'. No public parameterless constructor found.",
objectType));
}
result = DynamicMethodHandlerFactory.CreateConstructor(info);
_ctorCache.Add(objectType, result);
}
}
}
return(result);
}
