protected override void CacheMetadata(CodeActivityMetadata metadata)
{
MethodInfo oldGetMethod = _getMethod;
MethodInfo oldSetMethod = _setMethod;
if (!typeof(TOperand).GetTypeInfo().IsValueType)
{
metadata.AddValidationError(SR.TypeMustbeValueType(typeof(TOperand).Name));
}
if (typeof(TOperand).GetTypeInfo().IsEnum)
{
metadata.AddValidationError(SR.TargetTypeCannotBeEnum(this.GetType().Name, this.DisplayName));
}
else if (String.IsNullOrEmpty(this.PropertyName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("PropertyName", this.DisplayName));
}
else
{
_propertyInfo = typeof(TOperand).GetProperty(this.PropertyName);
if (_propertyInfo == null)
{
metadata.AddValidationError(SR.MemberNotFound(PropertyName, typeof(TOperand).Name));
}
}
bool isRequired = false;
if (_propertyInfo != null)
{
_setMethod = _propertyInfo.GetSetMethod();
_getMethod = _propertyInfo.GetGetMethod();
if (_setMethod == null)
{
metadata.AddValidationError(SR.MemberIsReadOnly(_propertyInfo.Name, typeof(TOperand)));
}
if (_setMethod != null && !_setMethod.IsStatic)
{
isRequired = true;
}
}
MemberExpressionHelper.AddOperandLocationArgument <TOperand>(metadata, this.OperandLocation, isRequired);
if (_propertyInfo != null)
{
if (MethodCallExpressionHelper.NeedRetrieve(_getMethod, oldGetMethod, _getFunc))
{
_getFunc = MethodCallExpressionHelper.GetFunc(metadata, _getMethod, s_funcCache, s_locker);
}
if (MethodCallExpressionHelper.NeedRetrieve(_setMethod, oldSetMethod, _setFunc))
{
_setFunc = MethodCallExpressionHelper.GetFunc(metadata, _setMethod, s_funcCache, s_locker, true);
}
}
}
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
MethodInfo oldGetMethod = _getMethod;
MethodInfo oldSetMethod = _setMethod;
if (!typeof(TOperand).GetTypeInfo().IsValueType)
{
metadata.AddValidationError(SR.TypeMustbeValueType(typeof(TOperand).Name));
}
if (this.Indices.Count == 0)
{
metadata.AddValidationError(SR.IndicesAreNeeded(this.GetType().Name, this.DisplayName));
}
else
{
IndexerHelper.CacheMethod <TOperand, TItem>(this.Indices, ref _getMethod, ref _setMethod);
if (_setMethod == null)
{
metadata.AddValidationError(SR.SpecialMethodNotFound("set_Item", typeof(TOperand).Name));
}
}
RuntimeArgument operandArgument = new RuntimeArgument("OperandLocation", typeof(TOperand), ArgumentDirection.InOut, true);
metadata.Bind(this.OperandLocation, operandArgument);
metadata.AddArgument(operandArgument);
IndexerHelper.OnGetArguments <TItem>(this.Indices, this.Result, metadata);
if (MethodCallExpressionHelper.NeedRetrieve(_getMethod, oldGetMethod, _getFunc))
{
_getFunc = MethodCallExpressionHelper.GetFunc(metadata, _getMethod, s_funcCache, s_locker);
}
if (MethodCallExpressionHelper.NeedRetrieve(_setMethod, oldSetMethod, _setFunc))
{
_setFunc = MethodCallExpressionHelper.GetFunc(metadata, _setMethod, s_funcCache, s_locker, true);
}
}
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
MethodInfo oldGetMethod = _getMethod;
MethodInfo oldSetMethod = _setMethod;
bool isRequired = false;
if (typeof(TOperand).GetTypeInfo().IsEnum)
{
metadata.AddValidationError(SR.TargetTypeCannotBeEnum(this.GetType().Name, this.DisplayName));
}
else if (typeof(TOperand).GetTypeInfo().IsValueType)
{
metadata.AddValidationError(SR.TargetTypeIsValueType(this.GetType().Name, this.DisplayName));
}
if (string.IsNullOrEmpty(this.PropertyName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("PropertyName", this.DisplayName));
}
else
{
Type operandType = typeof(TOperand);
_propertyInfo = operandType.GetProperty(this.PropertyName);
if (_propertyInfo == null)
{
metadata.AddValidationError(SR.MemberNotFound(PropertyName, typeof(TOperand).Name));
}
else
{
_getMethod = _propertyInfo.GetGetMethod();
_setMethod = _propertyInfo.GetSetMethod();
// Only allow access to public properties, EXCEPT that Locations are top-level variables
// from the other's perspective, not internal properties, so they're okay as a special case.
// E.g. "[N]" from the user's perspective is not accessing a nonpublic property, even though
// at an implementation level it is.
if (_setMethod == null && TypeHelper.AreTypesCompatible(_propertyInfo.DeclaringType, typeof(Location)) == false)
{
metadata.AddValidationError(SR.ReadonlyPropertyCannotBeSet(_propertyInfo.DeclaringType, _propertyInfo.Name));
}
if ((_getMethod != null && !_getMethod.IsStatic) || (_setMethod != null && !_setMethod.IsStatic))
{
isRequired = true;
}
}
}
MemberExpressionHelper.AddOperandArgument(metadata, this.Operand, isRequired);
if (_propertyInfo != null)
{
if (MethodCallExpressionHelper.NeedRetrieve(_getMethod, oldGetMethod, _getFunc))
{
_getFunc = MethodCallExpressionHelper.GetFunc(metadata, _getMethod, s_funcCache, s_locker);
}
if (MethodCallExpressionHelper.NeedRetrieve(_setMethod, oldSetMethod, _setFunc))
{
_setFunc = MethodCallExpressionHelper.GetFunc(metadata, _setMethod, s_funcCache, s_locker);
}
}
}