public static ILeoSelector <TVal> Select <TVal>(this ILeoVisitor visitor, Func <string, object, LeoMember, TVal> loopFunc)
{
if (visitor is null)
{
throw new ArgumentNullException(nameof(visitor));
}
var rel = (ICoreVisitor)visitor;
if (rel.LiteMode == LvMode.LITE)
{
throw new InvalidOperationException("Lite mode visitor has no Member handler.");
}
return(new LeoSelector <TVal>(rel.Owner, rel.ExposeLazyMemberHandler(), loopFunc));
}
public static ILeoLooper <T> ForEach <T>(this ILeoVisitor <T> visitor, Action <LeoLoopContext> loopAct)
{
if (visitor is null)
{
throw new ArgumentNullException(nameof(visitor));
}
var rel = (ICoreVisitor <T>)visitor;
if (rel.LiteMode == LvMode.LITE)
{
throw new InvalidOperationException("Lite mode visitor has no Member handler.");
}
return(new LeoLooper <T>(rel.Owner, rel.ExposeLazyMemberHandler(), loopAct));
}
public static ILeoRepeater <T> ForRepeat <T>(this ILeoVisitor <T> visitor)
{
if (visitor is null)
{
throw new ArgumentNullException(nameof(visitor));
}
if (visitor.IsStatic)
{
return(new EmptyRepeater <T>());
}
var rel = (ICoreVisitor <T>)visitor;
if (rel.ExposeHistoricalContext() is null)
{
return(new EmptyRepeater <T>());
}
return(new LeoRepeater <T>(rel.ExposeHistoricalContext()));
}
public static bool TryRepeatAs <TObj>(this ILeoVisitor visitor, IDictionary <string, object> keyValueCollections, out TObj result)
{
result = default;
var ret = visitor.TryRepeat(keyValueCollections, out var val);
if (!ret)
{
return(false);
}
try
{
result = (TObj)val;
return(true);
}
catch
{
return(false);
}
}
public static bool TryRepeatAs <TObj>(this ILeoVisitor visitor, object instance, out TObj result)
{
result = default;
var ret = visitor.TryRepeat(instance, out var val);
if (!ret)
{
return(false);
}
try
{
result = (TObj)val;
return(true);
}
catch
{
return(false);
}
}
public static bool TryRepeat <T>(this ILeoVisitor <T> visitor, IDictionary <string, object> keyValueCollections, out T result)
{
if (visitor is null)
{
throw new ArgumentNullException(nameof(visitor));
}
result = default;
if (visitor.IsStatic)
{
return(false);
}
var rel = (ICoreVisitor <T>)visitor;
if (rel.ExposeHistoricalContext() is null)
{
return(false);
}
result = rel.ExposeHistoricalContext().Repeat(keyValueCollections);
return(true);
}
public static bool TryRepeat <T>(this ILeoVisitor <T> visitor, T instance, out T result)
{
if (visitor is null)
{
throw new ArgumentNullException(nameof(visitor));
}
result = default;
if (visitor.IsStatic)
{
return(false);
}
var rel = (ICoreVisitor <T>)visitor;
if (rel.ExposeHistoricalContext() is null)
{
return(false);
}
result = rel.ExposeHistoricalContext().Repeat(instance);
return(true);
}
public static Dictionary <string, object> ToDictionary <T>(this ILeoVisitor <T> visitor)
{
if (visitor is null)
{
throw new ArgumentNullException(nameof(visitor));
}
var val = new Dictionary <string, object>();
var rel = (ICoreVisitor <T>)visitor;
if (rel.LiteMode == LvMode.LITE)
{
throw new InvalidOperationException("Lite mode visitor has no Member handler.");
}
var lazyHandler = rel.ExposeLazyMemberHandler();
foreach (var name in lazyHandler.Value.GetNames())
{
val[name] = visitor.GetValue(name);
}
return(val);
}
public static bool TryRepeatAs <T>(this ILeoVisitor <T> visitor, IDictionary <string, object> keyValueCollections, out T result)
{
result = default;
return(visitor.TryRepeat(keyValueCollections, out result));
}
public static bool TryRepeatAs <T>(this ILeoVisitor <T> visitor, T instance, out T result)
{
result = default;
return(visitor.TryRepeat(instance, out result));
}
public LeoSelector(ILeoVisitor visitor, Lazy <MemberHandler> memberHandler, Func <LeoLoopContext, TVal> loopFunc)
{
_visitor = visitor ?? throw new ArgumentNullException(nameof(visitor));
_memberHandler = memberHandler ?? throw new ArgumentNullException(nameof(memberHandler));
_context = new InternalLeoSelectingContext <TVal>(loopFunc);
}
public static T Create <T>(IDictionary <string, object> keyValueCollections, out ILeoVisitor <T> visitor, AlgorithmKind kind = AlgorithmKind.Precision)
{
visitor = LeoVisitorFactory.Create <T>(keyValueCollections, kind);
return(visitor.Instance);
}
public static object Create(Type type, IDictionary <string, object> keyValueCollections, out ILeoVisitor visitor, AlgorithmKind kind = AlgorithmKind.Precision)
{
visitor = LeoVisitorFactory.Create(type, keyValueCollections, kind);
return(visitor.Instance);
}
public ValueSetter(ILeoVisitor visitor, string name)
{
_visitor = visitor;
_setter = val => visitor.SetValue(name, val);
}
public ValueGetter(ILeoVisitor visitor, string name)
{
_visitor = visitor;
_getter = () => visitor.GetValue(name);
}
public LeoLooper(ILeoVisitor visitor, Lazy <MemberHandler> memberHandler, Action <LeoLoopContext> loopAct)
{
_visitor = visitor ?? throw new ArgumentNullException(nameof(visitor));
_memberHandler = memberHandler ?? throw new ArgumentNullException(nameof(memberHandler));
_context = new InternalLeoLoopingContext(loopAct);
}
