private void MakeDelegates()
{
var instance = Expression.Parameter(InstanceType.MakeByRefType(), "instance");
var value = Expression.Parameter(ReturnType, "value");
Expression instance_field = Expression.MakeMemberAccess(instance, Field);
Expression getExpression = null;
Expression setExpression = null;
if (ReturnType == Field.FieldType)
{
setExpression = Expression.Assign(instance_field, value);
getExpression = instance_field;
}
else
{
if (Field.FieldType.IsValueType)
{
setExpression = Expression.Assign(instance_field, Expression.Convert(value, Field.FieldType));
getExpression = Expression.Convert(instance_field, ReturnType);
}
else
{
setExpression = Expression.Assign(getExpression, Expression.TypeAs(value, Field.FieldType));
getExpression = Expression.TypeAs(instance_field, ReturnType);
}
}
Get = Expression.Lambda <FuncRef <T, P> >(getExpression, instance).Compile();
Set = Expression.Lambda <ActionRef <T, P> >(setExpression, instance, value).Compile();
}