public static DataContextMapping <TContxt> Function <TContxt>(this DataContextMapping <TContxt> contextMapping,
Expression <Func <TContxt, object> > predicate,
FunctionAttribute function) where TContxt : DataContext
{
var mi = GetMember(predicate);
return(Function(contextMapping, mi, function));
}
static DataContextMapping <TContxt> Function <TContxt>(this DataContextMapping <TContxt> contextMapping,
MemberInfo mi,
FunctionAttribute function) where TContxt : DataContext
{
if (mi.DeclaringType != typeof(TContxt))
{
throw Error.MappedMemberHadNoCorrespondingMemberInType(mi.Name, typeof(TContxt).Name);
}
contextMapping.Add(mi, function);
return(contextMapping);
}
public static FunctionAttribute Name(this FunctionAttribute function, string name)
{
function.Name = name;
return(function);
}
public static FunctionAttribute Composable(this FunctionAttribute function)
{
function.IsComposable = true;
return(function);
}
// Methods
public AttributedMetaFunction(AttributedMetaModel model, MethodInfo mi, IAttributeProvider attributeProvider)
{
if (model == null)
{
throw Error.ArgumentNull("model");
}
if (mi == null)
{
throw Error.ArgumentNull("mi");
}
if (attributeProvider == null)
{
throw Error.ArgumentNull("attributeProvider");
}
this.attributeProvider = attributeProvider;
this.model = model;
this.methodInfo = mi;
this.rowTypes = _emptyTypes;
//this.functionAttrib = Attribute.GetCustomAttribute(mi, typeof(FunctionAttribute), false) as FunctionAttribute;
this.functionAttrib = this.attributeProvider.GetFunction(mi);
//(ResultTypeAttribute[])Attribute.GetCustomAttributes(mi, typeof(ResultTypeAttribute));
var resultTypeAttributes = attributeProvider.GetResultTypeAttributes(mi);
if (resultTypeAttributes != null && resultTypeAttributes.Length == 0 && mi.ReturnType == typeof(IMultipleResults))
{
throw Mapping.Error.NoResultTypesDeclaredForFunction(mi.Name);
}
if (resultTypeAttributes != null && resultTypeAttributes.Length > 1 && mi.ReturnType != typeof(IMultipleResults))
{
throw Mapping.Error.TooManyResultTypesDeclaredForFunction(mi.Name);
}
if (((resultTypeAttributes != null && resultTypeAttributes.Length <= 1) && mi.ReturnType.IsGenericType) &&
(((mi.ReturnType.GetGenericTypeDefinition() == typeof(IEnumerable <>)) ||
(mi.ReturnType.GetGenericTypeDefinition() == typeof(ISingleResult <>))) ||
(mi.ReturnType.GetGenericTypeDefinition() == typeof(IQueryable <>))))
{
Type elementType = TypeSystem.GetElementType(mi.ReturnType);
var list = new List <MetaType>(1);
list.Add(this.GetMetaType(elementType));
this.rowTypes = list.AsReadOnly();
}
else if (resultTypeAttributes != null && resultTypeAttributes.Length > 0)
{
var list2 = new List <MetaType>();
foreach (ResultTypeAttribute attribute in resultTypeAttributes)
{
Type type = attribute.Type;
MetaType metaType = this.GetMetaType(type);
if (!list2.Contains(metaType))
{
list2.Add(metaType);
}
}
this.rowTypes = list2.AsReadOnly();
}
else
{
this.returnParameter = new AttributedMetaParameter(this.methodInfo.ReturnParameter);
}
ParameterInfo[] parameters = mi.GetParameters();
if (parameters.Length > 0)
{
var list3 = new List <MetaParameter>(parameters.Length);
int index = 0;
int length = parameters.Length;
while (index < length)
{
var item = new AttributedMetaParameter(parameters[index]);
list3.Add(item);
index++;
}
this.parameters = list3.AsReadOnly();
}
else
{
this.parameters = _emptyParameters;
}
}
public void Add(MemberInfo mi, FunctionAttribute function, ResultTypeAttribute[] resultTypes)
{
functions[mi] = function;
this.resultTypeAttributes[mi] = resultTypes;
}
public void Add(MemberInfo mi, FunctionAttribute function)
{
functions[mi] = function;
}