/// <summary>
/// Creates a function that gets the value of the specified property. The parameter of the
/// resulting function takes the object whose property value is to be accessed. If the
/// specified property is static, the parameter of the resulting function is ignored.
/// </summary>
/// <param name="property">The property to create the getter function for.</param>
/// <returns>A function that gets the property value.</returns>
public static Func <object, object> CreateGetter(this PropertyInfo property)
{
if (property == null)
{
throw new ArgumentNullException(nameof(property));
}
if (!property.CanRead || !property.GetMethod.IsPublic)
{
throw new ArgumentException("Property must have public getter.", nameof(property));
}
var getter = new PropertyGetter(property);
QueueUserWorkItem(getter, g => g.SetOptimizedFunc());
return(getter.GetValue);
}
/// <summary>
/// Creates a function that gets the value of the specified property. The parameter of the
/// resulting function takes the object whose property value is to be accessed. If the
/// specified property is static, the parameter of the resulting function is ignored.
/// </summary>
/// <typeparam name="TPropertyType">
/// The return type of the resulting function. This type must be compatible with the
/// <see cref="PropertyInfo.PropertyType"/> of the <paramref name="property"/> parameter.
/// </typeparam>
/// <param name="property">The property to create the getter function for.</param>
/// <returns>A function that gets the property value.</returns>
public static Func <object, TPropertyType> CreateGetter <TPropertyType>(this PropertyInfo property)
{
if (property == null)
{
throw new ArgumentNullException(nameof(property));
}
if (!typeof(TPropertyType).IsAssignableFrom(property.PropertyType))
{
throw new ArgumentException("TPropertyType must be assignable from property.PropertyType", nameof(property));
}
if (!property.CanRead || !property.GetMethod.IsPublic)
{
throw new ArgumentException("property must have public getter", nameof(property));
}
var getter = new PropertyGetter <TPropertyType>(property);
QueueUserWorkItem(getter, g => g.SetOptimizedFunc());
return(getter.GetValue);
}
