// Set methodExecutor, returning an error string if there are any problems (ambiguous match, etc.).
public void DetermineMethodInfo(CodeActivityMetadata metadata, MruCache<MethodInfo, Func<object, object[], object>> funcCache, ReaderWriterLockSlim locker,
ref MethodExecutor methodExecutor)
{
bool returnEarly = false;
MethodExecutor oldMethodExecutor = methodExecutor;
methodExecutor = null;
if (string.IsNullOrEmpty(this.MethodName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("MethodName", this.Parent.DisplayName));
returnEarly = true;
}
Type targetType = this.TargetType;
// If TargetType and the type of TargetObject are both set, it's an error.
if (targetType != null && this.TargetObject != null && !this.TargetObject.IsEmpty)
{
metadata.AddValidationError(SR.TargetTypeAndTargetObjectAreMutuallyExclusive(this.Parent.GetType().Name, this.Parent.DisplayName));
returnEarly = true;
}
// If TargetType was set, look for a static method. If TargetObject was set, look for an instance method. They can't both be set.
BindingFlags bindingFlags = this.TargetType != null ? staticBindingFlags : instanceBindingFlags;
string bindingType = bindingFlags == staticBindingFlags ? staticString : instanceString;
if (targetType == null)
{
if (this.TargetObject != null && !this.TargetObject.IsEmpty)
{
targetType = this.TargetObject.ArgumentType;
}
else
{
metadata.AddValidationError(SR.OneOfTwoPropertiesMustBeSet("TargetObject", "TargetType", this.Parent.GetType().Name, this.Parent.DisplayName));
returnEarly = true;
}
}
// We've had one or more constraint violations already
if (returnEarly)
{
return;
}
// Convert OutArgs and InOutArgs to out/ref types before resolution
Type[] parameterTypes =
Parameters.Select(argument => argument.Direction == ArgumentDirection.In ? argument.ArgumentType : argument.ArgumentType.MakeByRefType())
.ToArray();
Type[] genericTypeArguments = this.GenericTypeArguments.ToArray();
InheritanceAndParamArrayAwareBinder methodBinder = new InheritanceAndParamArrayAwareBinder(targetType, genericTypeArguments, this.Parent);
// It may be possible to know (and check) the resultType even if the result won't be assigned anywhere.
// Used 1.) for detecting async pattern, and 2.) to make sure we selected the correct MethodInfo.
Type resultType = this.ResultType;
if (this.RunAsynchronously)
{
int formalParamCount = parameterTypes.Length;
Type[] beginMethodParameterTypes = new Type[formalParamCount + 2];
for (int i = 0; i < formalParamCount; i++)
{
beginMethodParameterTypes[i] = parameterTypes[i];
}
beginMethodParameterTypes[formalParamCount] = typeof(AsyncCallback);
beginMethodParameterTypes[formalParamCount + 1] = typeof(object);
Type[] endMethodParameterTypes = { typeof(IAsyncResult) };
this.beginMethod = Resolve(targetType, "Begin" + this.MethodName, bindingFlags,
methodBinder, beginMethodParameterTypes, genericTypeArguments, true);
if (this.beginMethod != null && !this.beginMethod.ReturnType.Equals(typeof(IAsyncResult)))
{
this.beginMethod = null;
}
this.endMethod = Resolve(targetType, "End" + this.MethodName, bindingFlags,
methodBinder, endMethodParameterTypes, genericTypeArguments, true);
if (this.endMethod != null && resultType != null && !TypeHelper.AreTypesCompatible(this.endMethod.ReturnType, resultType))
{
metadata.AddValidationError(SR.ReturnTypeIncompatible(this.endMethod.ReturnType.Name, MethodName, targetType.Name, this.Parent.DisplayName, resultType.Name));
this.endMethod = null;
return;
}
if (this.beginMethod != null && this.endMethod != null && this.beginMethod.IsStatic == this.endMethod.IsStatic)
{
if (!(oldMethodExecutor is AsyncPatternMethodExecutor) ||
!((AsyncPatternMethodExecutor)oldMethodExecutor).IsTheSame(this.beginMethod, this.endMethod))
{
methodExecutor = new AsyncPatternMethodExecutor(metadata, this.beginMethod, this.endMethod, this.Parent,
this.TargetType, this.TargetObject, this.Parameters, this.Result, funcCache, locker);
}
else
{
methodExecutor = new AsyncPatternMethodExecutor((AsyncPatternMethodExecutor)oldMethodExecutor,
this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
return;
}
}
MethodInfo result;
try
{
result = Resolve(targetType, this.MethodName, bindingFlags,
methodBinder, parameterTypes, genericTypeArguments, false);
}
catch (AmbiguousMatchException)
{
metadata.AddValidationError(SR.DuplicateMethodFound(targetType.Name, bindingType, MethodName, this.Parent.DisplayName));
return;
}
if (result == null)
{
metadata.AddValidationError(SR.PublicMethodWithMatchingParameterDoesNotExist(targetType.Name, bindingType, MethodName, this.Parent.DisplayName));
return;
}
else if (resultType != null && !TypeHelper.AreTypesCompatible(result.ReturnType, resultType))
{
metadata.AddValidationError(
SR.ReturnTypeIncompatible(result.ReturnType.Name, MethodName,
targetType.Name, this.Parent.DisplayName, resultType.Name));
return;
}
else
{
this.syncMethod = result;
if (this.RunAsynchronously)
{
if (!(oldMethodExecutor is AsyncWaitCallbackMethodExecutor) ||
!((AsyncWaitCallbackMethodExecutor)oldMethodExecutor).IsTheSame(this.syncMethod))
{
methodExecutor = new AsyncWaitCallbackMethodExecutor(metadata, this.syncMethod, this.Parent,
this.TargetType, this.TargetObject, this.Parameters, this.Result, funcCache, locker);
}
else
{
methodExecutor = new AsyncWaitCallbackMethodExecutor((AsyncWaitCallbackMethodExecutor)oldMethodExecutor,
this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
}
else if (!(oldMethodExecutor is SyncMethodExecutor) ||
!((SyncMethodExecutor)oldMethodExecutor).IsTheSame(this.syncMethod))
{
methodExecutor = new SyncMethodExecutor(metadata, this.syncMethod, this.Parent, this.TargetType,
this.TargetObject, this.Parameters, this.Result, funcCache, locker);
}
else
{
methodExecutor = new SyncMethodExecutor((SyncMethodExecutor)oldMethodExecutor, this.TargetType,
this.TargetObject, this.Parameters, this.Result);
}
}
}
public void DetermineMethodInfo(CodeActivityMetadata metadata, out MethodExecutor methodExecutor)
{
bool flag = false;
methodExecutor = null;
if (string.IsNullOrEmpty(this.MethodName))
{
metadata.AddValidationError(System.Activities.SR.ActivityPropertyMustBeSet("MethodName", this.Parent.DisplayName));
flag = true;
}
Type targetType = this.TargetType;
if (((targetType != null) && (this.TargetObject != null)) && !this.TargetObject.IsEmpty)
{
metadata.AddValidationError(System.Activities.SR.TargetTypeAndTargetObjectAreMutuallyExclusive(this.Parent.GetType().Name, this.Parent.DisplayName));
flag = true;
}
BindingFlags bindingFlags = (this.TargetType != null) ? staticBindingFlags : instanceBindingFlags;
string str = (bindingFlags == staticBindingFlags) ? staticString : instanceString;
if (targetType == null)
{
if ((this.TargetObject != null) && !this.TargetObject.IsEmpty)
{
targetType = this.TargetObject.ArgumentType;
}
else
{
metadata.AddValidationError(System.Activities.SR.OneOfTwoPropertiesMustBeSet("TargetObject", "TargetType", this.Parent.GetType().Name, this.Parent.DisplayName));
flag = true;
}
}
if (!flag)
{
MethodInfo info;
Type[] parameterTypes = this.Parameters.Select<Argument, Type>(delegate (Argument argument) {
if (argument.Direction != ArgumentDirection.In)
{
return argument.ArgumentType.MakeByRefType();
}
return argument.ArgumentType;
}).ToArray<Type>();
Type[] genericTypeArguments = this.GenericTypeArguments.ToArray<Type>();
InheritanceAndParamArrayAwareBinder methodBinder = new InheritanceAndParamArrayAwareBinder(targetType, genericTypeArguments, this.Parent);
Type resultType = this.ResultType;
if (this.RunAsynchronously)
{
int length = parameterTypes.Length;
Type[] typeArray3 = new Type[length + 2];
for (int i = 0; i < length; i++)
{
typeArray3[i] = parameterTypes[i];
}
typeArray3[length] = typeof(AsyncCallback);
typeArray3[length + 1] = typeof(object);
Type[] typeArray4 = new Type[] { typeof(IAsyncResult) };
this.beginMethod = this.Resolve(targetType, "Begin" + this.MethodName, bindingFlags, methodBinder, typeArray3, genericTypeArguments, true);
if ((this.beginMethod != null) && !this.beginMethod.ReturnType.Equals(typeof(IAsyncResult)))
{
this.beginMethod = null;
}
this.endMethod = this.Resolve(targetType, "End" + this.MethodName, bindingFlags, methodBinder, typeArray4, genericTypeArguments, true);
if (((this.endMethod != null) && (resultType != null)) && !System.Runtime.TypeHelper.AreTypesCompatible(this.endMethod.ReturnType, resultType))
{
this.endMethod = null;
metadata.AddValidationError(System.Activities.SR.ReturnTypeIncompatible(this.endMethod.ReturnType.Name, this.MethodName, targetType.Name, this.Parent.DisplayName, resultType.Name));
return;
}
if (((this.beginMethod != null) && (this.endMethod != null)) && (this.beginMethod.IsStatic == this.endMethod.IsStatic))
{
methodExecutor = new AsyncPatternMethodExecutor(this.beginMethod, this.endMethod, this.Parent, this.TargetType, this.TargetObject, this.Parameters, this.Result);
return;
}
}
try
{
info = this.Resolve(targetType, this.MethodName, bindingFlags, methodBinder, parameterTypes, genericTypeArguments, false);
}
catch (AmbiguousMatchException)
{
metadata.AddValidationError(System.Activities.SR.DuplicateMethodFound(targetType.Name, str, this.MethodName, this.Parent.DisplayName));
return;
}
if (info != null)
{
if ((resultType != null) && !System.Runtime.TypeHelper.AreTypesCompatible(info.ReturnType, resultType))
{
metadata.AddValidationError(System.Activities.SR.ReturnTypeIncompatible(info.ReturnType.Name, this.MethodName, targetType.Name, this.Parent.DisplayName, resultType.Name));
}
else
{
this.syncMethod = info;
if (this.RunAsynchronously)
{
methodExecutor = new AsyncWaitCallbackMethodExecutor(info, this.Parent, this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
else
{
methodExecutor = new SyncMethodExecutor(info, this.Parent, this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
}
}
else
{
metadata.AddValidationError(System.Activities.SR.PublicMethodWithMatchingParameterDoesNotExist(targetType.Name, str, this.MethodName, this.Parent.DisplayName));
}
}
}
// Set methodExecutor, returning an error string if there are any problems (ambiguous match, etc.).
public void DetermineMethodInfo(CodeActivityMetadata metadata, MruCache <MethodInfo, Func <object, object[], object> > funcCache, ReaderWriterLockSlim locker,
ref MethodExecutor methodExecutor)
{
var returnEarly = false;
var oldMethodExecutor = methodExecutor;
methodExecutor = null;
if (string.IsNullOrEmpty(this.MethodName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("MethodName", this.Parent.DisplayName));
returnEarly = true;
}
var targetType = this.TargetType;
// If TargetType and the type of TargetObject are both set, it's an error.
if (targetType != null && this.TargetObject != null && !this.TargetObject.IsEmpty)
{
metadata.AddValidationError(SR.TargetTypeAndTargetObjectAreMutuallyExclusive(this.Parent.GetType().Name, this.Parent.DisplayName));
returnEarly = true;
}
// If TargetType was set, look for a static method. If TargetObject was set, look for an instance method. They can't both be set.
var bindingFlags = this.TargetType != null ? staticBindingFlags : instanceBindingFlags;
var bindingType = bindingFlags == staticBindingFlags ? staticString : instanceString;
if (targetType == null)
{
if (this.TargetObject != null && !this.TargetObject.IsEmpty)
{
targetType = this.TargetObject.ArgumentType;
}
else
{
metadata.AddValidationError(SR.OneOfTwoPropertiesMustBeSet("TargetObject", "TargetType", this.Parent.GetType().Name, this.Parent.DisplayName));
returnEarly = true;
}
}
// We've had one or more constraint violations already
if (returnEarly)
{
return;
}
// Convert OutArgs and InOutArgs to out/ref types before resolution
var parameterTypes =
Parameters.Select(argument => argument.Direction == ArgumentDirection.In ? argument.ArgumentType : argument.ArgumentType.MakeByRefType())
.ToArray();
var genericTypeArguments = this.GenericTypeArguments.ToArray();
var methodBinder = new InheritanceAndParamArrayAwareBinder(targetType, genericTypeArguments, this.Parent);
// It may be possible to know (and check) the resultType even if the result won't be assigned anywhere.
// Used 1.) for detecting async pattern, and 2.) to make sure we selected the correct MethodInfo.
var resultType = this.ResultType;
if (this.RunAsynchronously)
{
var formalParamCount = parameterTypes.Length;
var beginMethodParameterTypes = new Type[formalParamCount + 2];
for (var i = 0; i < formalParamCount; i++)
{
beginMethodParameterTypes[i] = parameterTypes[i];
}
beginMethodParameterTypes[formalParamCount] = typeof(AsyncCallback);
beginMethodParameterTypes[formalParamCount + 1] = typeof(object);
Type[] endMethodParameterTypes = { typeof(IAsyncResult) };
this.beginMethod = Resolve(targetType, "Begin" + this.MethodName, bindingFlags,
methodBinder, beginMethodParameterTypes, genericTypeArguments, true);
if (this.beginMethod != null && !this.beginMethod.ReturnType.Equals(typeof(IAsyncResult)))
{
this.beginMethod = null;
}
this.endMethod = Resolve(targetType, "End" + this.MethodName, bindingFlags,
methodBinder, endMethodParameterTypes, genericTypeArguments, true);
if (this.endMethod != null && resultType != null && !TypeHelper.AreTypesCompatible(this.endMethod.ReturnType, resultType))
{
metadata.AddValidationError(SR.ReturnTypeIncompatible(this.endMethod.ReturnType.Name, MethodName, targetType.Name, this.Parent.DisplayName, resultType.Name));
this.endMethod = null;
return;
}
if (this.beginMethod != null && this.endMethod != null && this.beginMethod.IsStatic == this.endMethod.IsStatic)
{
if (!(oldMethodExecutor is AsyncPatternMethodExecutor) ||
!((AsyncPatternMethodExecutor)oldMethodExecutor).IsTheSame(this.beginMethod, this.endMethod))
{
methodExecutor = new AsyncPatternMethodExecutor(metadata, this.beginMethod, this.endMethod, this.Parent,
this.TargetType, this.TargetObject, this.Parameters, this.Result, funcCache, locker);
}
else
{
methodExecutor = new AsyncPatternMethodExecutor((AsyncPatternMethodExecutor)oldMethodExecutor,
this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
return;
}
}
MethodInfo result;
try
{
result = Resolve(targetType, this.MethodName, bindingFlags,
methodBinder, parameterTypes, genericTypeArguments, false);
}
catch (AmbiguousMatchException)
{
metadata.AddValidationError(SR.DuplicateMethodFound(targetType.Name, bindingType, MethodName, this.Parent.DisplayName));
return;
}
if (result == null)
{
metadata.AddValidationError(SR.PublicMethodWithMatchingParameterDoesNotExist(targetType.Name, bindingType, MethodName, this.Parent.DisplayName));
return;
}
else if (resultType != null && !TypeHelper.AreTypesCompatible(result.ReturnType, resultType))
{
metadata.AddValidationError(
SR.ReturnTypeIncompatible(result.ReturnType.Name, MethodName,
targetType.Name, this.Parent.DisplayName, resultType.Name));
return;
}
else
{
this.syncMethod = result;
if (this.RunAsynchronously)
{
if (!(oldMethodExecutor is AsyncWaitCallbackMethodExecutor) ||
!((AsyncWaitCallbackMethodExecutor)oldMethodExecutor).IsTheSame(this.syncMethod))
{
methodExecutor = new AsyncWaitCallbackMethodExecutor(metadata, this.syncMethod, this.Parent,
this.TargetType, this.TargetObject, this.Parameters, this.Result, funcCache, locker);
}
else
{
methodExecutor = new AsyncWaitCallbackMethodExecutor((AsyncWaitCallbackMethodExecutor)oldMethodExecutor,
this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
}
else if (!(oldMethodExecutor is SyncMethodExecutor) ||
!((SyncMethodExecutor)oldMethodExecutor).IsTheSame(this.syncMethod))
{
methodExecutor = new SyncMethodExecutor(metadata, this.syncMethod, this.Parent, this.TargetType,
this.TargetObject, this.Parameters, this.Result, funcCache, locker);
}
else
{
methodExecutor = new SyncMethodExecutor((SyncMethodExecutor)oldMethodExecutor, this.TargetType,
this.TargetObject, this.Parameters, this.Result);
}
}
}
public void DetermineMethodInfo(CodeActivityMetadata metadata, out MethodExecutor methodExecutor)
{
bool flag = false;
methodExecutor = null;
if (string.IsNullOrEmpty(this.MethodName))
{
metadata.AddValidationError(System.Activities.SR.ActivityPropertyMustBeSet("MethodName", this.Parent.DisplayName));
flag = true;
}
Type targetType = this.TargetType;
if (((targetType != null) && (this.TargetObject != null)) && !this.TargetObject.IsEmpty)
{
metadata.AddValidationError(System.Activities.SR.TargetTypeAndTargetObjectAreMutuallyExclusive(this.Parent.GetType().Name, this.Parent.DisplayName));
flag = true;
}
BindingFlags bindingFlags = (this.TargetType != null) ? staticBindingFlags : instanceBindingFlags;
string str = (bindingFlags == staticBindingFlags) ? staticString : instanceString;
if (targetType == null)
{
if ((this.TargetObject != null) && !this.TargetObject.IsEmpty)
{
targetType = this.TargetObject.ArgumentType;
}
else
{
metadata.AddValidationError(System.Activities.SR.OneOfTwoPropertiesMustBeSet("TargetObject", "TargetType", this.Parent.GetType().Name, this.Parent.DisplayName));
flag = true;
}
}
if (!flag)
{
MethodInfo info;
Type[] parameterTypes = this.Parameters.Select <Argument, Type>(delegate(Argument argument) {
if (argument.Direction != ArgumentDirection.In)
{
return(argument.ArgumentType.MakeByRefType());
}
return(argument.ArgumentType);
}).ToArray <Type>();
Type[] genericTypeArguments = this.GenericTypeArguments.ToArray <Type>();
InheritanceAndParamArrayAwareBinder methodBinder = new InheritanceAndParamArrayAwareBinder(targetType, genericTypeArguments, this.Parent);
Type resultType = this.ResultType;
if (this.RunAsynchronously)
{
int length = parameterTypes.Length;
Type[] typeArray3 = new Type[length + 2];
for (int i = 0; i < length; i++)
{
typeArray3[i] = parameterTypes[i];
}
typeArray3[length] = typeof(AsyncCallback);
typeArray3[length + 1] = typeof(object);
Type[] typeArray4 = new Type[] { typeof(IAsyncResult) };
this.beginMethod = this.Resolve(targetType, "Begin" + this.MethodName, bindingFlags, methodBinder, typeArray3, genericTypeArguments, true);
if ((this.beginMethod != null) && !this.beginMethod.ReturnType.Equals(typeof(IAsyncResult)))
{
this.beginMethod = null;
}
this.endMethod = this.Resolve(targetType, "End" + this.MethodName, bindingFlags, methodBinder, typeArray4, genericTypeArguments, true);
if (((this.endMethod != null) && (resultType != null)) && !System.Runtime.TypeHelper.AreTypesCompatible(this.endMethod.ReturnType, resultType))
{
this.endMethod = null;
metadata.AddValidationError(System.Activities.SR.ReturnTypeIncompatible(this.endMethod.ReturnType.Name, this.MethodName, targetType.Name, this.Parent.DisplayName, resultType.Name));
return;
}
if (((this.beginMethod != null) && (this.endMethod != null)) && (this.beginMethod.IsStatic == this.endMethod.IsStatic))
{
methodExecutor = new AsyncPatternMethodExecutor(this.beginMethod, this.endMethod, this.Parent, this.TargetType, this.TargetObject, this.Parameters, this.Result);
return;
}
}
try
{
info = this.Resolve(targetType, this.MethodName, bindingFlags, methodBinder, parameterTypes, genericTypeArguments, false);
}
catch (AmbiguousMatchException)
{
metadata.AddValidationError(System.Activities.SR.DuplicateMethodFound(targetType.Name, str, this.MethodName, this.Parent.DisplayName));
return;
}
if (info != null)
{
if ((resultType != null) && !System.Runtime.TypeHelper.AreTypesCompatible(info.ReturnType, resultType))
{
metadata.AddValidationError(System.Activities.SR.ReturnTypeIncompatible(info.ReturnType.Name, this.MethodName, targetType.Name, this.Parent.DisplayName, resultType.Name));
}
else
{
this.syncMethod = info;
if (this.RunAsynchronously)
{
methodExecutor = new AsyncWaitCallbackMethodExecutor(info, this.Parent, this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
else
{
methodExecutor = new SyncMethodExecutor(info, this.Parent, this.TargetType, this.TargetObject, this.Parameters, this.Result);
}
}
}
else
{
metadata.AddValidationError(System.Activities.SR.PublicMethodWithMatchingParameterDoesNotExist(targetType.Name, str, this.MethodName, this.Parent.DisplayName));
}
}
}