/// <summary>
/// Internal use Only
/// </summary>
/// <param name="propertyInfo"></param>
/// <param name="anon"></param>
/// <returns></returns>
/// <exception cref="InvalidOperationException">The object is already Initialed. A Change is not allowed</exception>
public virtual IPropertyInfoCache <TAtt> Init(PropertyInfo propertyInfo, bool anon)
{
if (!string.IsNullOrEmpty(PropertyName))
{
throw new InvalidOperationException("The object is already Initialed. A Change is not allowed");
}
Attributes.Clear();
if (propertyInfo == null)
{
return(this);
}
var getMethod = propertyInfo.GetMethod;
var setMethod = propertyInfo.SetMethod;
PropertyInfo = propertyInfo;
PropertyName = propertyInfo.Name;
PropertyType = propertyInfo.PropertyType;
if (!anon && (getMethod != null || setMethod != null))
{
var isStatic = getMethod != null
? getMethod.Attributes.HasFlag(MethodAttributes.Static)
: setMethod.Attributes.HasFlag(MethodAttributes.Static);
var builder = typeof(Expression)
.GetMethods()
.First(s => s.Name == "Lambda" && s.ContainsGenericParameters);
if (isStatic)
{
GetterDelegate = typeof(Func <>).MakeGenericType(propertyInfo.PropertyType);
SetterDelegate = typeof(Action <>).MakeGenericType(propertyInfo.PropertyType);
var accessField = Expression.Property(null, propertyInfo);
if (getMethod != null)
{
var getExpression = builder
.MakeGenericMethod(GetterDelegate)
.Invoke(null, new object[]
{
accessField, null
}) as dynamic;
var getterDelegate = getExpression.Compile();
Getter = new PropertyHelper <TAtt>(getMethod);
((PropertyHelper <TAtt>)Getter).SetGet(getterDelegate);
}
if (setMethod != null)
{
var valueRef = Expression.Parameter(propertyInfo.PropertyType, "newValue");
var setter = Expression.Assign(
accessField,
valueRef);
var setExpression = builder
.MakeGenericMethod(SetterDelegate)
.Invoke(null, new object[]
{
setter,
new[]
{
valueRef
}
}) as dynamic;
var setterDelegate = setExpression.Compile();
Setter = new PropertyHelper <TAtt>(setMethod);
((PropertyHelper <TAtt>)Setter).SetSet(setterDelegate);
}
}
else
{
GetterDelegate = typeof(Func <,>).MakeGenericType(propertyInfo.DeclaringType, propertyInfo.PropertyType);
SetterDelegate = typeof(Func <, ,>).MakeGenericType(propertyInfo.DeclaringType, propertyInfo.PropertyType,
propertyInfo.DeclaringType);
var thisRef = Expression.Parameter(propertyInfo.DeclaringType, "that");
var accessField = Expression.MakeMemberAccess(thisRef, propertyInfo);
if (getMethod != null)
{
var getExpression = builder
.MakeGenericMethod(GetterDelegate)
.Invoke(null, new object[]
{
accessField,
new[] { thisRef }
}) as dynamic;
var getterDelegate = getExpression.Compile();
Getter = new PropertyHelper <TAtt>(getMethod);
((PropertyHelper <TAtt>)Getter).SetGet(getterDelegate);
}
if (setMethod != null)
{
var valueRef = Expression.Parameter(propertyInfo.PropertyType, "newValue");
var setter = Expression.Assign(
accessField,
valueRef);
var makeRetunLabel = Expression.Label(propertyInfo.DeclaringType);
var retunLabel = Expression.Label(makeRetunLabel, Expression.Default(propertyInfo.DeclaringType));
var returnMaybeValueType = Expression.Return(makeRetunLabel, thisRef);
var setExpression = builder
.MakeGenericMethod(SetterDelegate)
.Invoke(null, new object[]
{
Expression.Block(setter, returnMaybeValueType, retunLabel),
new[] { thisRef, valueRef }
}) as dynamic;
var setterDelegate = setExpression.Compile();
Setter = new PropertyHelper <TAtt>(setMethod);
((PropertyHelper <TAtt>)Setter).SetSet(setterDelegate);
}
}
}
else
{
if (getMethod != null)
{
Getter = new MethodInfoCache <TAtt, MethodArgsInfoCache <TAtt> >(getMethod);
}
if (setMethod != null)
{
Setter = new MethodInfoCache <TAtt, MethodArgsInfoCache <TAtt> >(setMethod);
}
}
Attributes = new HashSet <TAtt>(propertyInfo
.GetCustomAttributes(true)
.Where(s => s is Attribute)
.Select(s => new TAtt().Init(s as Attribute) as TAtt));
return(this);
}
/// <summary>
/// Internal use Only
/// </summary>
/// <param name="propertyInfo"></param>
/// <param name="anon"></param>
/// <returns></returns>
/// <exception cref="InvalidOperationException">The object is already Initialed. A Change is not allowed</exception>
public virtual IPropertyInfoCache <TAtt> Init(PropertyInfo propertyInfo, bool anon)
{
if (!string.IsNullOrEmpty(PropertyName))
{
throw new InvalidOperationException("The object is already Initialed. A Change is not allowed");
}
Attributes.Clear();
if (propertyInfo == null)
{
return(this);
}
var getMethod = propertyInfo.GetMethod;
var setMethod = propertyInfo.SetMethod;
PropertyInfo = propertyInfo;
PropertyName = propertyInfo.Name;
PropertyType = propertyInfo.PropertyType;
if (!anon && (getMethod != null || setMethod != null))
{
var isStatic = getMethod != null
? getMethod.Attributes.HasFlag(MethodAttributes.Static)
: setMethod.Attributes.HasFlag(MethodAttributes.Static);
//var builder = MetaInfoStoreExtentions.GetExpressionLambda();
if (isStatic)
{
GetterDelegate = typeof(Func <>).MakeGenericType(propertyInfo.PropertyType);
SetterDelegate = typeof(Action <>).MakeGenericType(propertyInfo.PropertyType);
var accessField = Expression.Property(null, propertyInfo);
if (getMethod != null)
{
var getterDelegate = Expression.Lambda(accessField);
//var getExpression = builder
// .MakeGenericMethod(GetterDelegate)
// .Invoke(null, new object[]
// {
// accessField, null
// });
//var getterDelegate = MetaInfoStoreExtentions
// .GetCompileMethodFromExpression(getExpression.GetType())
// .Invoke(getExpression, null);
Getter = new PropertyHelper <TAtt>(getMethod);
((PropertyHelper <TAtt>)Getter).SetGet(getterDelegate);
}
if (setMethod != null)
{
var valueRef = Expression.Parameter(propertyInfo.PropertyType, "newValue");
var setter = Expression.Assign(
accessField,
valueRef);
var setterDelegate = Expression.Lambda(setter, valueRef);
//var setExpression = builder
// .MakeGenericMethod(SetterDelegate)
// .Invoke(null, new object[]
// {
// setter,
// new[]
// {
// valueRef
// }
// });
//var setterDelegate = MetaInfoStoreExtentions
// .GetCompileMethodFromExpression(setExpression.GetType())
// .Invoke(setExpression, null);
Setter = new PropertyHelper <TAtt>(setMethod);
((PropertyHelper <TAtt>)Setter).SetSet(setterDelegate);
}
}
else
{
GetterDelegate =
typeof(Func <,>).MakeGenericType(propertyInfo.DeclaringType, propertyInfo.PropertyType);
SetterDelegate = typeof(Func <, ,>).MakeGenericType(propertyInfo.DeclaringType,
propertyInfo.PropertyType,
propertyInfo.DeclaringType);
var thisRef = Expression.Parameter(propertyInfo.DeclaringType, "that");
var accessField = Expression.MakeMemberAccess(thisRef, propertyInfo);
if (getMethod != null)
{
var getExpression = Expression.Lambda(accessField, thisRef);
//var getExpression = builder
// .MakeGenericMethod(GetterDelegate)
// .Invoke(null, new object[]
// {
// accessField,
// new[] {thisRef}
// }) as dynamic;
var getterDelegate = getExpression.Compile();
Getter = new PropertyHelper <TAtt>(getMethod);
((PropertyHelper <TAtt>)Getter).SetGet(getterDelegate);
}
if (setMethod != null)
{
Setter = new PropertyHelper <TAtt>(setMethod);
try
{
var valueRef = Expression.Parameter(propertyInfo.PropertyType, "newValue");
var setter = Expression.Assign(
accessField,
valueRef);
var makeRetunLabel = Expression.Label(propertyInfo.DeclaringType);
var retunLabel = Expression.Label(makeRetunLabel,
Expression.Default(propertyInfo.DeclaringType));
var returnMaybeValueType = Expression.Return(makeRetunLabel, thisRef);
var setExpression = Expression.Lambda(
Expression.Block(setter, returnMaybeValueType, retunLabel),
thisRef, valueRef);
//var setExpression = builder
// .MakeGenericMethod(SetterDelegate)
// .Invoke(null, new object[]
// {
// Expression.Block(setter, returnMaybeValueType, retunLabel),
// new[] {thisRef, valueRef}
// }) as dynamic;
var setterDelegate = setExpression.Compile();
((PropertyHelper <TAtt>)Setter).SetSet(setterDelegate);
}
catch (Exception ex)
{
Console.WriteLine(ex);
//sometimes the Compile method does throw an error. In this case fall back to reflection
var setDelegate = setMethod.CreateDelegate(SetterDelegate);
((PropertyHelper <TAtt>)Setter).SetSet(setDelegate);
}
}
}
}
else
{
if (getMethod != null)
{
Getter = new MethodInfoCache <TAtt, MethodArgsInfoCache <TAtt> >();
Getter.Init(getMethod);
}
if (setMethod != null)
{
Setter = new MethodInfoCache <TAtt, MethodArgsInfoCache <TAtt> >();
Setter.Init(setMethod);
}
}
Attributes = new HashSet <TAtt>(propertyInfo
.GetCustomAttributes(true)
.Where(s => s is Attribute)
.Select(s => new TAtt().Init(s as Attribute) as TAtt));
return(this);
}
