/// <summary>
///
/// </summary>
/// <param name="classProperty"></param>
/// <returns></returns>
public static Action <TEntity, object> GetFunc(ClassProperty classProperty)
{
if (classProperty == null)
{
return(null);
}
if (cache.TryGetValue(classProperty.GetHashCode(), out var func) == false)
{
if (classProperty != null)
{
var entity = Expression.Parameter(typeof(TEntity), "entity");
var value = Expression.Parameter(typeof(object), "value");
var converted = Expression.Convert(value, classProperty.PropertyInfo.PropertyType);
var body = (Expression)Expression.Call(entity, classProperty.PropertyInfo.SetMethod, converted);
func = Expression
.Lambda <Action <TEntity, object> >(body, entity, value)
.Compile();
}
cache.TryAdd(classProperty.GetHashCode(), func);
}
return(func);
}
/// <summary>
///
/// </summary>
/// <param name="classProperty"></param>
/// <returns></returns>
public static Func <TEntity, TResult> GetFunc(ClassProperty classProperty)
{
if (cache.TryGetValue(classProperty.GetHashCode(), out var func) == false)
{
var typeOfEntity = typeof(TEntity);
var entity = Expression.Parameter(typeOfEntity, "entity");
var body = Expression.Convert(Expression.Call(entity, classProperty.PropertyInfo.GetMethod), typeof(TResult));
func = Expression
.Lambda <Func <TEntity, TResult> >(body, entity)
.Compile();
cache.TryAdd(classProperty.GetHashCode(), func);
}
return(func);
}
public static Action <TEntity, object> GetFunc(ClassProperty property)
{
var func = (Action <TEntity, object>)null;
// Try get from cache
if (m_cache.TryGetValue(property.GetHashCode(), out func) == false)
{
// Parameters
var entity = Expression.Parameter(typeof(TEntity), "entity");
var value = Expression.Parameter(typeof(object), "value");
// Set the body
var converted = Expression.Convert(value, property.PropertyInfo.PropertyType);
var body = (Expression)Expression.Call(entity, property.PropertyInfo.SetMethod, converted);
// Set the function value
func = Expression
.Lambda <Action <TEntity, object> >(body, entity, value)
.Compile();
}
// return the function
return(func);
}
public override int GetHashCode()
{
return((element != null ? element.GetHashCode() : 0)
^ (vmProperty != null ? vmProperty.GetHashCode() : 0)
^ (vmMethod != null ? vmMethod.GetHashCode() : 0));
}
