/// <summary>
/// Creates a new ReflectedCaller which can be used to quickly invoke the provided MethodInfo.
/// </summary>
public static CallInstruction Create(MethodInfo info, ParameterInfo[] parameters)
{
int argumentCount = parameters.Length;
if (!info.IsStatic)
{
argumentCount++;
}
// A workaround for CLR bug #796414 (Unable to create delegates for Array.Get/Set):
// T[]::Address - not supported by ETs due to T& return value
if (info.DeclaringType != null && info.DeclaringType.IsArray && (info.Name == "Get" || info.Name == "Set"))
{
return(GetArrayAccessor(info, argumentCount));
}
if (info is DynamicMethod || !info.IsStatic && info.DeclaringType.IsValueType)
{
return(new MethodInfoCallInstruction(info, argumentCount));
}
if (argumentCount >= MaxHelpers)
{
// no delegate for this size, fallback to reflection invoke
return(new MethodInfoCallInstruction(info, argumentCount));
}
foreach (ParameterInfo pi in parameters)
{
if (pi.ParameterType.IsByRef)
{
// we don't support ref args via generics.
return(new MethodInfoCallInstruction(info, argumentCount));
}
}
// see if we've created one w/ a delegate
CallInstruction res;
if (ShouldCache(info))
{
lock (_cache) {
if (_cache.TryGetValue(info, out res))
{
return(res);
}
}
}
// create it
try {
if (argumentCount < MaxArgs)
{
res = FastCreate(info, parameters);
}
else
{
res = SlowCreate(info, parameters);
}
} catch (TargetInvocationException tie) {
if (!(tie.InnerException is NotSupportedException))
{
throw;
}
res = new MethodInfoCallInstruction(info, argumentCount);
} catch (NotSupportedException) {
// if Delegate.CreateDelegate can't handle the method fallback to
// the slow reflection version. For example this can happen w/
// a generic method defined on an interface and implemented on a class.
res = new MethodInfoCallInstruction(info, argumentCount);
}
// cache it for future users if it's a reasonable method to cache
if (ShouldCache(info))
{
lock (_cache) {
_cache[info] = res;
}
}
return(res);
}
/// <summary>
/// Creates a new ReflectedCaller which can be used to quickly invoke the provided MethodInfo.
/// </summary>
internal static CallInstruction Create(MethodInfo info, ParameterInfo[] parameters) {
int argumentCount = parameters.Length;
if (!info.IsStatic) {
argumentCount++;
}
// A workaround for CLR bug #796414 (Unable to create delegates for Array.Get/Set):
// T[]::Address - not supported by ETs due to T& return value
if (info.DeclaringType != null && info.DeclaringType.IsArray && (info.Name == "Get" || info.Name == "Set")) {
return GetArrayAccessor(info, argumentCount);
}
if (info is DynamicMethod || !info.IsStatic && info.DeclaringType.IsValueType) {
return new MethodInfoCallInstruction(info, argumentCount);
}
if (argumentCount >= MaxHelpers) {
// no delegate for this size, fallback to reflection invoke
return new MethodInfoCallInstruction(info, argumentCount);
}
foreach (ParameterInfo pi in parameters) {
if (pi.ParameterType.IsByRef) {
// we don't support ref args via generics.
return new MethodInfoCallInstruction(info, argumentCount);
}
}
// see if we've created one w/ a delegate
CallInstruction res;
if (ShouldCache(info)) {
lock (_cache) {
if (_cache.TryGetValue(info, out res)) {
return res;
}
}
}
// create it
try {
if (argumentCount < MaxArgs) {
res = FastCreate(info, parameters);
} else {
res = SlowCreate(info, parameters);
}
} catch (TargetInvocationException tie) {
if (!(tie.InnerException is NotSupportedException)) {
throw;
}
res = new MethodInfoCallInstruction(info, argumentCount);
} catch (NotSupportedException) {
// if Delegate.CreateDelegate can't handle the method fallback to
// the slow reflection version. For example this can happen w/
// a generic method defined on an interface and implemented on a class.
res = new MethodInfoCallInstruction(info, argumentCount);
}
// cache it for future users if it's a reasonable method to cache
if (ShouldCache(info)) {
lock (_cache) {
_cache[info] = res;
}
}
return res;
}