private void OnPropertyChanged(DeclaredProperty declaredProperty, object target, dynamic value, dynamic newValue)
{
if (target == null)
{
return;
}
MonitoringTree.HandleObservedChange
(
termRelativeRoot: TermFromRoot,
oldValue: value,
newValue: newValue
);
foreach (var definesTerm in declaredProperty.DefinesPropertyTerms)
{
var definesNewValue = definesTerm.GetValue
(
target: target,
actualKey: out _,
parent: out var definesTarget,
property: out var definesProperty
);
var definesDeclaredProperty = (DeclaredProperty)definesProperty;
definesDeclaredProperty.NotifyChange
(
target: definesTarget,
oldValue: default(UnknownValue),
newValue: definesNewValue
);
}
}
internal PropertyLink(PropertyMonitoringTree monitoringTree, PropertyLink rootward, DeclaredProperty property)
{
MonitoringTree = monitoringTree;
monitoringTree.AllLinks.Add(this);
Rootward = rootward;
Property = property;
TermFromRoot = Term.Append(monitoringTree.Stub, GetTermFromRoot(monitoringTree.OutputTermComponentSeparator), false);
HasUnresolvedIndexes = TermFromRoot.OfType <AnyIndexProperty>().Any();
}
/// <summary>
/// Parses a term key string and returns a term describing it. All terms are created here.
/// The main caller is TypeCache.MakeTerm, but it's also called from places that use a
/// dynamic domain (processors).
/// </summary>
public Term Parse(Type resource, string key, string componentSeparator, TermBindingRule bindingRule, ICollection <string> dynDomain)
{
var term = new Term(componentSeparator);
Property propertyMaker(string str)
{
if (string.IsNullOrWhiteSpace(str))
{
throw new InvalidSyntax(ErrorCodes.InvalidConditionSyntax, $"Invalid condition '{str}'");
}
if (dynDomain?.Contains(str, StringComparer.OrdinalIgnoreCase) == true)
{
return(DynamicProperty.Parse(str));
}
Property make(Type type)
{
switch (bindingRule)
{
case TermBindingRule.DeclaredWithDynamicFallback:
try
{
return(TypeCache.FindDeclaredProperty(type, str));
}
catch (UnknownProperty)
{
return(DynamicProperty.Parse(str));
}
case TermBindingRule.DynamicWithDeclaredFallback: return(DynamicProperty.Parse(str, true));
case TermBindingRule.OnlyDeclared:
try
{
return(TypeCache.FindDeclaredProperty(type, str));
}
catch (UnknownProperty)
{
if (type.GetSubclasses().Any(subClass => TypeCache.TryFindDeclaredProperty(subClass, str, out _)))
{
return(DynamicProperty.Parse(str));
}
throw;
}
default: throw new Exception();
}
}
return(term.LastOrDefault() switch
{
null => make(resource),
DeclaredProperty declared => make(declared.Type),
_ => DynamicProperty.Parse(str)
});
}
internal void EstablishPropertyDependancies(DeclaredProperty property)
{
if (property.HasAttribute <DefinesAttribute>(out var dAttribute) && dAttribute.Terms is string[] dArgs && dArgs.Any())
{
foreach (var term in dArgs.Select(name => TermFactory.MakeOrGetCachedTerm(property.Owner, name, ".", TermBindingRule.OnlyDeclared)))
{
property.DefinesPropertyTerms.Add(term);
}
property.DefinesOtherProperties = true;
}
}
/// <summary>
/// Converts all properties in this term to dynamic properties
/// </summary>
private static Term MakeDynamic(Term term)
{
if (term.IsDynamic)
{
return(term);
}
var newTerm = new Term(term.ComponentSeparator);
newTerm.Store.AddRange(term.Store.Select(prop => prop switch
{
DynamicProperty _ => prop,
DeclaredProperty _ => DynamicProperty.Parse(prop.Name),
_ => throw new ArgumentOutOfRangeException()
}));
/// <summary>
/// Parses a declared property from a key string and a type
/// </summary>
/// <param name="type">The type to match the property from</param>
/// <param name="key">The string to match a property from</param>
/// <param name="declaredProperty">The declared property found</param>
/// <returns></returns>
public bool TryFindDeclaredProperty(Type type, string key, out DeclaredProperty declaredProperty)
{
return(GetDeclaredProperties(type).TryGetValue(key, out declaredProperty));
}