private void DoPropertyBind(PropertyTreeBinderImpl parent,
PropertyTreeMetaObject target,
PropertyTreeNavigator navigator,
PropertyDefinition property)
{
object ancestor = null;
PropertyTreeMetaObject ancestorMeta = null;
if (property.IsExtender) {
var ancestorType = property.DeclaringTreeDefinition.SourceClrType;
ancestorMeta = target.GetAncestors().Cast<PropertyTreeMetaObject>().FirstOrDefault(
t => ancestorType.IsAssignableFrom(t.ComponentType));
if (ancestorMeta != null)
ancestor = ancestorMeta.Component;
}
var component = target.Component;
PropertyTreeMetaObject propertyTarget = target.CreateChild(property, navigator.QualifiedName, ancestorMeta);
var services = new PropertyBindContext(
component,
property,
ServiceProvider.Compose(ServiceProvider.FromValue(navigator), parent))
{
LineNumber = navigator.LineNumber,
LinePosition = navigator.LinePosition,
};
propertyTarget = parent.Bind(propertyTarget, navigator, services);
target.BindSetMember(property, navigator.QualifiedName, propertyTarget, ancestorMeta, services);
}
public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent,
PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children)
{
Type type = target.ComponentType ?? typeof(object);
// Select providers
if (type.IsProviderType())
{
var node = children.FindAndRemove(ImplicitDirective(target, "provider")).FirstOrDefault();
if (node != null)
{
var serviceProvider = parent.GetBasicServices(node);
var pro = parent.DirectiveFactory.CreateTargetProvider(type, node);
if (pro != null)
{
target = target.BindTargetProvider(pro, serviceProvider);
return(target);
}
}
}
return(target);
}
public override PropertyTreeMetaObject BindInitializer(Expression expression, IExpressionContext context, IServiceProvider serviceProvider)
{
// No need to evaluate if the parent can accept expressions
// TODO There will be other conditions for allowing expressions
if (CanAllowExpressionInitializer(Parent))
{
return(PropertyTreeMetaObject.Create(expression));
}
var result = expression.Evaluate(context ?? ExpressionContext.Empty);
if (result == Undefined.Value)
{
return(PropertyTreeMetaObject.Null);
}
var items = result as object[];
if (items != null)
{
if (items.Length == 0 || items.All(t => t == Undefined.Value))
{
return(PropertyTreeMetaObject.Null);
}
result = string.Concat(items);
}
return(BindInitializeValue(result.ToString(), serviceProvider));
}
public override PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
foreach (var child in children.Rest()) {
string msg;
if (target.ComponentType.IsHiddenUX()) {
msg = SR.BinderMissingPropertyNoType(child.QualifiedName);
} else {
msg = SR.BinderMissingProperty(child.QualifiedName, target.ComponentType);
}
try {
var info = new InterfaceUsageInfo(InterfaceUsage.Missing, msg, null, true);
Parent.Callback.OnPropertyAnnotation(child.QualifiedName.ToString(), info);
} catch (Exception ex) {
if (ex.IsCriticalException())
throw;
throw PropertyTreesFailure.UnmatchedMembersGenericError(ex, child.FileLocation);
}
}
return target;
}
public override PropertyTreeMetaObject BindInitializeValue(string text, IServiceProvider serviceProvider)
{
object value;
TryConvertFromText(text, serviceProvider, out value);
return(PropertyTreeMetaObject.Create(value));
}
public override PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
Predicate<PropertyTreeNavigator> predicate = ImplicitDirective(target, "source");
var node = children.FindAndRemove(predicate).FirstOrDefault();
if (node != null) {
IServiceProvider serviceProvider = Parent.GetBasicServices(node);
var uriContext = node as IUriContext;
TargetSourceDirective ss;
ss = this.DirectiveFactory.CreateTargetSource(node, uriContext);
if (ss != null) {
try {
target = target.BindStreamingSource(ss, serviceProvider);
} catch (Exception ex) {
if (ex.IsCriticalException())
throw;
Parent.errors.FailedToLoadFromSource(ss.Uri, ex, node.FileLocation);
}
}
}
return target;
}
private PropertyTreeMetaObject DoOperatorBind(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator navigator, OperatorDefinition op)
{
OperatorDefinition addon = op;
if (addon.DefaultParameter != null) {
Type itemType = ((PropertyTreeFactoryDefinition) addon).OutputType;
// TODO Use service activation (we have the output type)
var item = target.CreateChild(itemType);
var model = parent.Bind(item, navigator, null);
var args = new Dictionary<string, PropertyTreeMetaObject>
{
{ addon.DefaultParameter.Name, model }
};
try {
target.BindAddChild(op, args);
} catch (Exception ex) {
if (ex.IsCriticalException())
throw;
parent.errors.BadAddChild(target.ComponentType, ex, navigator.FileLocation);
}
} else {
// TODO The number and kinds of arguments are constrained. This should probably
// be enforced within schema operator reflection (spec)
Action<IReadOnlyDictionary<string, PropertyTreeMetaObject>> func;
var children = NodeList.Create(SelectChildren(navigator));
switch (addon.OperatorType) {
case OperatorType.Add:
func = args => {
var child = target.BindAddChild(addon, args);
if (child.ShouldBindChildren) {
parent.BindChildNodes(child, navigator, children);
}
};
break;
case OperatorType.Remove:
func = args => target.BindRemoveChild(addon, args);
break;
case OperatorType.Clear:
default:
func = args => target.BindClearChildren(addon, args);
break;
}
var services = parent.GetBasicServices(navigator);
var args2 = parent.ExtractParameterDictionary(op, target, services, children);
func(args2);
}
return target;
}
public override PropertyTreeMetaObject StartStep(
PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children)
{
if (!(target is UntypedToTypedMetaObject))
return target;
if (!children.Any())
return target;
try {
// TODO Only supports one child (lame spec)
var rootType = target.Root.ComponentType;
var types = children.Select(t => ConvertToType(t, rootType)).ToArray();
target = target.BindGenericParameters(types);
} catch (Exception ex) {
if (ex.IsCriticalException())
throw;
Parent.errors.CouldNotBindGenericParameters(target.ComponentType, ex, self.FileLocation);
}
Parent.Bind(target, children.First(), null);
children.Clear();
return target;
}
public override PropertyTreeMetaObject BindStreamingSource(StreamContext input, IServiceProvider serviceProvider)
{
var ss = StreamingSource.Create(this.ComponentType);
var comp = ss.Load(input, this.ComponentType);
return(PropertyTreeMetaObject.Create(comp));
}
public override PropertyTreeMetaObject BindInitializeValue(string text, IServiceProvider serviceProvider)
{
object value = text;
if (ComponentType != typeof(string) && ComponentType != typeof(object))
{
TryConvertFromText(text, serviceProvider, out value);
}
return(PropertyTreeMetaObject.Create(value, this.ComponentType));
}
public override PropertyTreeMetaObject BindInitializer(Expression expression, IExpressionContext context, IServiceProvider serviceProvider)
{
if (Parent.IsExpressionBag)
{
return(PropertyTreeMetaObject.Create(expression));
}
object value = expression.Evaluate(context ?? ExpressionContext.Empty);
return(PropertyTreeMetaObject.Create(value));
}
public override PropertyTreeMetaObject EndStep(PropertyTreeMetaObject target)
{
if (target.ShouldConstruct) {
var ctor = target.GetDefinition().Constructor;
if (ctor != null)
return target.BindConstructor(ctor, Empty<string, PropertyTreeMetaObject>.ReadOnlyDictionary);
}
return target;
}
private void ApplyType(PropertyTreeMetaObject target,
PropertyTreeNavigator node)
{
if (node == null)
return;
Type type = target.ComponentType ?? typeof(object);
var serviceProvider = Parent.GetBasicServices(node);
target.BindTargetType(this.DirectiveFactory.CreateTargetType(node), serviceProvider);
}
private PropertyTreeMetaObject PickBuilderTypeIfAvailable(PropertyTreeMetaObject target)
{
if (target.Component == null && target.ComponentType != null) {
Type builderType = target.ComponentType.GetBuilderType();
if (builderType != null)
return new BuilderMetaObject(new PreactivationMetaObject(builderType));
}
return target;
}
internal PropertyTreeMetaObject BindChildNodes(PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children)
{
foreach (var step in Pipeline)
{
target = step.Process(this, target, self, children);
}
return(target);
}
bool IApplyMemberStep.Apply(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator node)
{
var member = target.SelectOperator(ImpliedName(node, target));
if (member != null) {
DoOperatorBind(parent, target, node, member);
return true;
}
return false;
}
public override PropertyTreeMetaObject CreateChild(PropertyDefinition property,
QualifiedName name,
PropertyTreeMetaObject ancestor)
{
if (property.IsReadOnly)
{
AppendCommand(new PushPropertyCommand(property, name));
return(FromInstanceType(property.PropertyType));
}
return(CreateChild(property.PropertyType));
}
bool IApplyMemberStep.Apply(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator node)
{
var member = target.SelectOperator(ImpliedName(node, target));
if (member != null)
{
DoOperatorBind(parent, target, node, member);
return(true);
}
return(false);
}
public override PropertyTreeMetaObject BindInitializeValue(string text, IServiceProvider serviceProvider)
{
object value;
if (TryConvertFromText(text, serviceProvider, out value))
{
return(PropertyTreeMetaObject.Create(value));
}
else
{
throw new NotImplementedException();
}
}
private PropertyTreeMetaObject PickBuilderTypeIfAvailable(PropertyTreeMetaObject target)
{
if (target.Component == null && target.ComponentType != null)
{
Type builderType = target.ComponentType.GetBuilderType();
if (builderType != null)
{
return(new BuilderMetaObject(new PreactivationMetaObject(builderType)));
}
}
return(target);
}
private void ApplyType(PropertyTreeBinderImpl parent,
PropertyTreeMetaObject target,
PropertyTreeNavigator node)
{
if (node == null)
{
return;
}
var serviceProvider = parent.GetBasicServices(node);
target.BindTargetType(parent.DirectiveFactory.CreateTargetType(node), serviceProvider);
}
public override PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
QualifiedName name = self.QualifiedName;
var ctor = PropertyTreeDefinition.FromType(target.ComponentType).Constructor;
if (target.ShouldConstruct && ctor != null) {
OperatorDefinition op = ctor;
var args = ExtractParameterDictionary(op, target, Parent.GetBasicServices(self), children);
target = target.BindConstructor(ctor, args);
}
return target;
}
private void DoPropertyBind(PropertyTreeMetaObject target,
PropertyTreeNavigator navigator,
PropertyDefinition property)
{
object ancestor = null;
PropertyTreeMetaObject ancestorMeta = null;
if (property.IsExtender)
{
var ancestorType = property.DeclaringTreeDefinition.SourceClrType;
ancestorMeta = target.Ancestors.FirstOrDefault(
t => ancestorType.IsAssignableFrom(t.ComponentType));
if (ancestorMeta != null)
{
ancestor = ancestorMeta.Component;
}
}
var component = target.Component;
PropertyTreeMetaObject propertyTarget = target.CreateChild(property, navigator.QualifiedName, ancestorMeta);
var services = new PropertyBindContext(
component,
property,
ServiceProvider.Compose(ServiceProvider.FromValue(navigator), this))
{
LineNumber = navigator.LineNumber,
LinePosition = navigator.LinePosition,
};
try {
propertyTarget = Bind(propertyTarget, navigator, services);
target.BindSetMember(property, navigator.QualifiedName, propertyTarget, ancestorMeta, services);
} catch (NullReferenceException nre) {
// Normally a "critical" exception, consider it a conversion error
_errors.BinderConversionError(property.Name, target.ComponentType, nre, navigator.FileLocation);
} catch (ArgumentException a) {
_errors.BinderConversionError(property.Name, target.ComponentType, a, navigator.FileLocation);
} catch (PropertyTreeException) {
throw;
} catch (Exception ex) {
if (ex.IsCriticalException())
{
throw;
}
_errors.BinderConversionError(property.Name, target.ComponentType, ex, navigator.FileLocation);
}
}
internal static Predicate <PropertyTreeNavigator> ImplicitDirective(PropertyTreeMetaObject target, string name)
{
var defaultNS = NamespaceUri.Default + name;
var langNS = Xmlns.PropertyTrees2010Uri + name;
var existing = (PropertyNodeDefinition)target.SelectProperty(defaultNS, allowDefaultProperties: false)
?? target.SelectOperator(defaultNS);
if (existing == null)
{
return(t => t.Name == name);
}
else
{
return(t => t.QualifiedName == langNS);
}
}
public override PropertyTreeMetaObject Bind(PropertyTreeMetaObject target,
PropertyTreeNavigator navigator,
IServiceProvider serviceProvider)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
if (navigator == null)
{
throw new ArgumentNullException("navigator");
}
if (navigator.IsProperty)
{
var textValue = navigator.Value as string;
if (textValue != null)
{
return(BindInitializeValue(
target,
navigator,
serviceProvider,
() => target.BindInitializeValue(textValue, serviceProvider)));
}
var exprValue = navigator.Value as Expression;
if (exprValue != null)
{
var exprContext = ExpressionContext.Compose(
CurrentExpressionContext,
ExpressionContext.FromNameScope(FindNameScope(target))
);
exprValue = ExpressionUtility.LiftToCall(exprValue, exprContext);
return(BindInitializeValue(
target,
navigator,
serviceProvider,
() => target.BindInitializer(exprValue, exprContext, serviceProvider)));
}
throw new NotImplementedException();
}
var children = SelectChildren(navigator);
return(BindChildNodes(target, navigator, NodeList.Create(children)));
}
bool IApplyMemberStep.Apply(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator node)
{
PropertyDefinition prop;
if (_allowDefault) {
prop = target.GetDefinition().DefaultProperty;
if (prop == null)
return false;
} else {
var im = ImpliedName(node, target);
prop = target.SelectProperty(im);
if (prop == null || prop.IsIndexer)
return false;
}
DoPropertyBind(parent, target, node, prop);
return true;
}
private PropertyTreeMetaObject BindInitializeValue(PropertyTreeMetaObject target,
PropertyTreeNavigator navigator,
IServiceProvider serviceProvider,
Func <PropertyTreeMetaObject> thunk)
{
try {
return(thunk());
} catch (PropertyTreeException) {
throw;
} catch (Exception ex) {
var sp = ServiceProvider.Compose(ServiceProvider.FromValue(navigator), serviceProvider, this);
// Throw critical exceptions if they originate within PT; otherwise, allow
// callback to decide how to handle them.
if (ex.IsCriticalException())
{
throw;
}
var descriptor = serviceProvider.GetServiceOrDefault <IValueSerializerContext>();
string property = navigator.QualifiedName.ToString();
Type componentType;
if (descriptor == null || descriptor.Instance == null)
{
componentType = target.ComponentType;
}
else if (descriptor.Property == null)
{
componentType = descriptor.Instance.GetType();
}
else
{
property = descriptor.Property.Name;
componentType = descriptor.Property.DeclaringType;
}
FileLocation loc = navigator.FileLocation;
object value = navigator.Value;
_errors.BinderConversionError(property, componentType, ex, loc);
}
return(target);
}
public override StreamingSource CreateStreamingSource(PropertyTreeMetaObject target, StreamContext input, IServiceProvider serviceProvider)
{
Type componentType = target.ComponentType;
var uri = serviceProvider.GetRequiredService <IUriContext>();
if (input.Uri == uri.BaseUri)
{
string name = input.Uri.Fragment.TrimStart('#');
var obj = FindNameScope(target).FindName(name);
if (obj == null)
{
throw new NotImplementedException();
}
return(new ObjectCacheStreamingSource(input.Uri, obj));
}
// TODO Should cache streaming sources so that the output objects can immediately be retrieved
return(StreamingSource.Create(componentType, input.ContentType) ?? new PropertyTreeSource());
}
public virtual PropertyTreeMetaObject CreateChild(PropertyDefinition property,
QualifiedName name,
PropertyTreeMetaObject ancestor)
{
object value;
property.TryGetValue(this.Component, ancestor, name, out value);
var propertyType = property.PropertyType;
// Refine property type if possible
if (value == null)
{
return(CreateChild(propertyType));
}
else
{
return(CreateChild(value, propertyType));
}
}
private bool TryAggregation(PropertyTreeMetaObject value,
QualifiedName name,
PropertyDefinition property,
IServiceProvider serviceProvider)
{
object current;
if (!property.TryGetValue(component, null, name, out current))
{
return(false);
}
var enumerable = value.Component as IEnumerable;
if (current != null && enumerable != null)
{
var items = enumerable;
if (!ReferenceEquals(current, items) && enumerable.GetEnumerator().MoveNext())
{
MethodInfo mi = FindAddonMethod(current.GetType(), enumerable);
if (mi == null)
{
// Error because aggregation will be needed on read-only properties
if (property.IsReadOnly)
{
var errors = serviceProvider.GetServiceOrDefault(PropertyTreeBinderErrors.Default);
errors.NoAddMethodSupported(component.GetType(), PropertyTreeBinderImpl.FindFileLocation(serviceProvider));
}
return(false);
}
foreach (var item in items)
{
mi.Invoke(current, new object[] { item });
}
// Success because aggregation was applied
return(true);
}
}
return(false);
}
private static QualifiedName ImpliedName(PropertyTreeNavigator nav, PropertyTreeMetaObject target)
{
QualifiedName qualifiedName = nav.QualifiedName;
if (nav.IsExpressNamespace)
{
return(qualifiedName);
}
NamespaceUri impliedNS = Utility.GetXmlnsNamespaceSafe(target.ComponentType);
if (impliedNS == null)
{
return(qualifiedName);
}
else
{
return(qualifiedName.ChangeNamespace(impliedNS));
}
}
public override PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
Type type = target.ComponentType ?? typeof(object);
Type concreteClass = type.GetConcreteClass();
QualifiedName name = self.QualifiedName;
IServiceProvider serviceProvider = Parent;
if (concreteClass != null && type != concreteClass) {
target.BindTargetType(TypeReference.FromType(concreteClass), serviceProvider);
} else if (type.IsComposable()) {
target.BindTargetProvider(name, null, serviceProvider);
}
if (target.Component == null && !target.ComponentType.IsSealed) {
// TODO This predicate is probably too loose
Predicate<PropertyTreeNavigator> predicate = t => t.Name == "type";
var node = children.FindAndRemove(predicate).FirstOrDefault();
ApplyType(target, node);
}
return target;
}
public override PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children)
{
Type type = target.ComponentType ?? typeof(object);
// Select providers
if (type.IsProviderType()) {
var node = children.FindAndRemove(ImplicitDirective(target, "provider")).FirstOrDefault();
if (node != null) {
var serviceProvider = Parent.GetBasicServices(node);
var pro = DirectiveFactory.CreateTargetProvider(type, node);
if (pro != null) {
target = target.BindTargetProvider(pro, serviceProvider);
return target;
}
}
}
return target;
}
public override PropertyTreeMetaObject Process(
PropertyTreeBinderImpl parent,
PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children)
{
if (!(target is UntypedToTypedMetaObject))
{
return(target);
}
if (!children.Any())
{
return(target);
}
try {
// TODO Only supports one child (lame spec)
var rootType = target.Root.ComponentType;
var types = children.Select(t => ConvertToType(t, rootType)).ToArray();
target = target.BindGenericParameters(types);
} catch (PropertyTreeException) {
throw;
} catch (Exception ex) {
if (ex.IsCriticalException())
{
throw;
}
parent._errors.CouldNotBindGenericParameters(target.ComponentType, ex, self.FileLocation);
}
parent.Bind(target, children.First(), null);
children.Clear();
return(target);
}
bool IApplyMemberStep.Apply(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator node)
{
PropertyDefinition prop = null;
if (_allowDefault)
{
var defaultProperties = target.GetDefinition().DefaultProperties;
if (defaultProperties.Skip(1).Any())
{
prop = defaultProperties.FirstOrDefault(p => p.TryGetValue(target.Component, node.QualifiedName));
}
if (prop == null)
{
prop = defaultProperties.FirstOrDefault();
}
if (prop == null)
{
return(false);
}
}
else
{
var im = ImpliedName(node, target);
prop = target.SelectProperty(im);
if (prop == null || prop.IsIndexer)
{
return(false);
}
}
parent.DoPropertyBind(target, node, prop);
return(true);
}
public virtual PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children)
{
return target;
}
public PropertyTreeMetaObject Process(
PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children)
{
target = StartStep(target, self, children);
return EndStep(target);
}
public override void BindSetMember(PropertyDefinition property, QualifiedName name, PropertyTreeMetaObject value, PropertyTreeMetaObject ancestor, IServiceProvider serviceProvider)
{
if (property.IsReadOnly) {
TryAggregation(value, name, property, serviceProvider);
return;
}
object outputValue = value.Component;
object anc = ancestor == null ? null : ancestor.Component;
SetValueCore(property, name, anc, value, outputValue, serviceProvider);
}
public override PropertyTreeMetaObject Bind(PropertyTreeMetaObject target,
PropertyTreeNavigator navigator,
IServiceProvider serviceProvider)
{
if (target == null)
throw new ArgumentNullException("target");
if (navigator == null)
throw new ArgumentNullException("navigator");
if (navigator.IsProperty) {
string value = Convert.ToString(navigator.Value);
var sp = ServiceProvider.Compose(ServiceProvider.FromValue(navigator), serviceProvider, this);
var xml = (IXmlNamespaceResolver) sp.GetService(typeof(IXmlNamespaceResolver));
try {
return target.BindInitializeValue(value, sp);
} catch (Exception ex) {
// Throw critical exceptions if they originate within PT; otherwise, allow
// callback to decide how to handle them.
if (ex.IsCriticalException())
throw;
var descriptor = serviceProvider.GetService<ITypeDescriptorContext>();
string property;
Type componentType;
if (descriptor == null || descriptor.PropertyDescriptor == null) {
property = navigator.QualifiedName.ToString();
componentType = descriptor.Instance.GetType();
} else {
property = descriptor.PropertyDescriptor.Name;
componentType = descriptor.PropertyDescriptor.ComponentType;
}
FileLocation loc = navigator.FileLocation;
try {
Callback.OnConversionException(property, value, ex);
} catch (Exception ex2) {
if (Require.IsCriticalException(ex2))
throw;
throw PropertyTreesFailure.BinderConversionError(value, property, componentType, ex2, loc);
}
}
}
var children = SelectChildren(navigator);
return BindChildNodes(target, navigator, NodeList.Create(children));
}
public abstract PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent,
PropertyTreeMetaObject target,
PropertyTreeNavigator self,
NodeList children);
public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
if (target.ShouldConstruct)
{
var ctor = target.GetDefinition().Constructor;
if (ctor != null)
{
return(target.BindConstructor(ctor, Empty <string, PropertyTreeMetaObject> .ReadOnlyDictionary));
}
}
return(target);
}
public override PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
children.FindAndRemove(t => Apply(target, t)).All();
return target;
}
public virtual void BindSetMember(PropertyDefinition property, QualifiedName name, PropertyTreeMetaObject value, PropertyTreeMetaObject ancestor, IServiceProvider serviceProvider)
{
}
public abstract PropertyTreeMetaObject Bind(PropertyTreeMetaObject target, PropertyTreeNavigator navigator, IServiceProvider serviceProvider);
public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
Predicate <PropertyTreeNavigator> predicate = ImplicitDirective(target, "source");
var node = children.FindAndRemove(predicate).FirstOrDefault();
if (node != null)
{
IServiceProvider serviceProvider = parent.GetBasicServices(node);
var uriContext = node as IUriContext;
TargetSourceDirective ss;
ss = parent.DirectiveFactory.CreateTargetSource(node, uriContext);
if (ss != null)
{
try {
target = target.BindStreamingSource(ss, serviceProvider);
} catch (PropertyTreeException) {
throw;
} catch (Exception ex) {
if (ex.IsCriticalException())
{
throw;
}
parent._errors.FailedToLoadFromSource(ss.Uri, ex, node.FileLocation);
}
}
}
return(target);
}
public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
Predicate <PropertyTreeNavigator> predicate = ImplicitDirective(target, "id");
var node = children.FindAndRemove(predicate).FirstOrDefault();
if (node == null)
{
node = children.FindAndRemove("name").FirstOrDefault();
}
if (node != null)
{
// TODO Handle when a name is duplicated or contains whitespace
var ns = parent.FindNameScope(target);
string id = Convert.ToString(node.Value);
if (string.IsNullOrEmpty(id))
{
parent._errors.IdCannotBeBlank(node.FileLocation);
}
else if (ns.FindName(id) == null)
{
ns.RegisterName(id, target.Component);
}
else
{
parent._errors.IdAlreadyRegistered(id, node.FileLocation);
}
var nameProperty = target.SelectProperty(NamespaceUri.Default + "name");
if (nameProperty != null)
{
parent.DoPropertyBind(target, node, nameProperty);
}
}
return(target);
}
// TODO Implement property ordering based on [DependsOn]
private bool Apply(PropertyTreeMetaObject target, PropertyTreeNavigator node)
{
return _items.Any(t => t.Apply(Parent, target, node));
}
public virtual PropertyTreeMetaObject EndStep(PropertyTreeMetaObject target)
{
return target;
}
public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
IServiceProvider serviceProvider = parent.GetBasicServices(self);
int lineNumber = self.LineNumber;
int linePosition = self.LinePosition;
return(target.BindFileLocation(lineNumber, linePosition, serviceProvider));
}
public virtual PropertyTreeMetaObject CreateChild(PropertyDefinition property,
QualifiedName name,
PropertyTreeMetaObject ancestor)
{
var value = property.GetValue(this.Component, ancestor, name);
var propertyType = property.PropertyType;
// Refine property type if possible
if (value == null) {
return CreateChild(propertyType);
}
else {
return CreateChild(value, propertyType);
}
}
public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
return(target.BindEndObject(parent));
}
protected PropertyTreeMetaObject(PropertyTreeMetaObject parent)
{
this.Parent = parent;
}
public Dictionary <string, PropertyTreeMetaObject> ExtractParameterDictionary(
OperatorDefinition op,
PropertyTreeMetaObject target,
IServiceProvider serviceProvider,
NodeList children)
{
// Named constructor arguments
var duplicates = new HashSet <QualifiedName>();
var mapped = new Dictionary <QualifiedName, PropertyTreeNavigator>();
foreach (var child in children)
{
// Implicitly map default NS to real
var impliedName = ImpliedName(child, target);
if (duplicates.Contains(impliedName))
{
// Duplicates can't bind to parameters (only to param arrays)
}
else if (mapped.ContainsKey(impliedName))
{
// Detected a duplicate
duplicates.Add(impliedName);
mapped.Remove(impliedName);
}
else
{
mapped.Add(impliedName, child);
}
}
var args = new Dictionary <string, PropertyTreeMetaObject>(op.Parameters.Count);
PropertyDefinition myParam = null;
List <string> requiredMissing = new List <string>();
foreach (PropertyDefinition p in op.Parameters)
{
// Fallback to empty ns
PropertyTreeNavigator nav;
QualifiedName impliedName = p.QualifiedName;
if (p.QualifiedName.Namespace.IsDefault)
{
impliedName = impliedName.ChangeNamespace(op.Namespace);
}
if (mapped.TryGetValue(impliedName, out nav))
{
// Binds a parameter required for activating an instance
// TODO Should we supply/use attributes from the parameter
// and/or corresponding property descriptor?
var childContext = target.CreateChild(p.PropertyType);
args[p.Name] = Bind(childContext, nav, serviceProvider);
children.Remove(nav);
}
else if (p.IsOptional)
{
PropertyTreeMetaObject defaultValue;
if (p.DefaultValue == null)
{
defaultValue = PropertyTreeMetaObject.Create(p.PropertyType);
}
else
{
defaultValue = PropertyTreeMetaObject.Create(p.DefaultValue);
}
args[p.Name] = defaultValue;
}
else if (p.IsParamArray)
{
myParam = p;
}
else if (TypeHelper.IsParameterRequired(p.PropertyType))
{
requiredMissing.Add(Utility.DisplayName(p.QualifiedName));
}
}
if (requiredMissing.Count > 0)
{
_errors.RequiredPropertiesMissing(requiredMissing, op, FindFileLocation(serviceProvider));
}
if (myParam == null && !target.GetDefinition().DefaultProperties.Any() && duplicates.Any(t => target.SelectProperty(t) != null))
{
_errors.DuplicatePropertyName(duplicates, FindFileLocation(serviceProvider));
}
// Try param array
if (myParam != null)
{
var all = new List <object>();
var elementType = myParam.PropertyType.GetElementType();
foreach (var kvp in children)
{
// Bind child nodes so tha latebound applies
var childrenList = NodeList.Create(PropertyTreeBinderImpl.SelectChildren(kvp));
var inline = BindChildNodes(PropertyTreeMetaObject.Create(elementType), kvp, childrenList);
var inlineVal = inline.Component;
all.Add(inlineVal);
}
children.Clear();
var array = Array.CreateInstance(elementType, all.Count);
((System.Collections.ICollection)all).CopyTo(array, 0);
args[myParam.Name] = PropertyTreeMetaObject.Create(array);
}
return(args);
}
private void SetValueCore(PropertyDefinition property,
QualifiedName name,
object ancestor,
PropertyTreeMetaObject value,
object outputValue,
IServiceProvider serviceProvider)
{
var callback = serviceProvider.TryGetService(PopulateComponentCallback.Null);
try {
property.SetValue(component, ancestor, name, value.Component);
} catch (NullReferenceException nre) {
// Normally a "critical" exception, consider it a conversion error
callback.OnConversionException(property.Name, outputValue, nre);
} catch (ArgumentException a) {
callback.OnConversionException(property.Name, outputValue, a);
} catch (Exception ex) {
if (Require.IsCriticalException(ex))
throw;
callback.OnConversionException(property.Name, outputValue, ex);
}
}
internal Dictionary<string, PropertyTreeMetaObject> ExtractParameterDictionary(
OperatorDefinition op,
PropertyTreeMetaObject target,
IServiceProvider serviceProvider,
NodeList children)
{
return Parent.ExtractParameterDictionary(op, target, serviceProvider, children);
}
private void TryAggregation(PropertyTreeMetaObject value,
QualifiedName name,
PropertyDefinition property,
IServiceProvider serviceProvider)
{
var current = property.GetValue(component, name);
var enumerable = value.Component as IEnumerable;
if (enumerable != null) {
var items = enumerable;
if (!ReferenceEquals(current, items) && enumerable.GetEnumerator().MoveNext()) {
MethodInfo mi = FindAddonMethod(current.GetType(), enumerable);
if (mi == null) {
var errors = serviceProvider.TryGetService(PropertyTreeBinderErrors.Default);
errors.NoAddMethodSupported(component.GetType(), PropertyTreeBinderImpl.FindFileLocation(serviceProvider));
return;
}
foreach (var item in items) {
mi.Invoke(current, new object[] { item });
}
}
}
}
public abstract StreamingSource CreateStreamingSource(PropertyTreeMetaObject target, StreamContext input, IServiceProvider serviceProvider);
private static QualifiedName ImpliedName(PropertyTreeNavigator nav, PropertyTreeMetaObject target)
{
QualifiedName qualifiedName = nav.QualifiedName;
if (nav.IsExpressNamespace)
return qualifiedName;
NamespaceUri impliedNS = Utility.GetXmlnsNamespaceSafe(target.ComponentType);
if (impliedNS == null)
return qualifiedName;
else
return qualifiedName.ChangeNamespace(impliedNS);
}
public override PropertyTreeMetaObject EndStep(PropertyTreeMetaObject target)
{
return target.BindEndObject(Parent);
}
public Dictionary<string, PropertyTreeMetaObject> ExtractParameterDictionary(
OperatorDefinition op,
PropertyTreeMetaObject target,
IServiceProvider serviceProvider,
NodeList children)
{
// Named constructor arguments
var duplicates = new HashSet<QualifiedName>();
var mapped = new Dictionary<QualifiedName, PropertyTreeNavigator>();
foreach (var child in children) {
// Implicitly map default NS to real
var impliedName = ImpliedName(child, target);
if (duplicates.Contains(impliedName)) {
// Duplicates can't bind to parameters (only to param arrays)
} else if (mapped.ContainsKey(impliedName)) {
// Detected a duplicate
duplicates.Add(impliedName);
mapped.Remove(impliedName);
} else {
mapped.Add(impliedName, child);
}
}
var args = new Dictionary<string, PropertyTreeMetaObject>(op.Parameters.Count);
PropertyDefinition myParam = null;
List<string> requiredMissing = new List<string>();
foreach (PropertyDefinition p in op.Parameters) {
// Fallback to empty ns
PropertyTreeNavigator nav;
QualifiedName impliedName = p.QualifiedName;
if (p.QualifiedName.Namespace.IsDefault) {
impliedName = impliedName.ChangeNamespace(op.Namespace);
}
if (mapped.TryGetValue(impliedName, out nav)) {
// Binds a parameter required for activating an instance
// TODO Should we supply/use attributes from the parameter
// and/or corresponding property descriptor?
var childContext = target.CreateChild(p.PropertyType);
args[p.Name] = Bind(childContext, nav, serviceProvider);
children.Remove(nav);
}
else if (p.IsOptional) {
PropertyTreeMetaObject defaultValue;
if (p.DefaultValue == null)
defaultValue = PropertyTreeMetaObject.Create(p.PropertyType);
else
defaultValue = PropertyTreeMetaObject.Create(p.DefaultValue);
args[p.Name] = defaultValue;
} else if (p.IsParamArray)
myParam = p;
else if (TypeHelper.IsParameterRequired(p.PropertyType)) {
requiredMissing.Add(Utility.DisplayName(p.QualifiedName));
}
}
if (requiredMissing.Count > 0)
errors.RequiredPropertiesMissing(requiredMissing, op, FindFileLocation(serviceProvider));
if (myParam == null && target.GetDefinition().DefaultProperty == null && duplicates.Any(t => target.SelectProperty(t) != null))
errors.DuplicatePropertyName(duplicates, FindFileLocation(serviceProvider));
// Try param array
if (myParam != null) {
var all = new List<object>();
var elementType = myParam.PropertyType.GetElementType();
foreach (var kvp in children) {
// Bind child nodes so tha latebound applies
var childrenList = NodeList.Create(PropertyTreeBinderImpl.SelectChildren(kvp));
var inline = BindChildNodes(PropertyTreeMetaObject.Create(elementType), kvp, childrenList);
var inlineVal = inline.Component;
all.Add(inlineVal);
}
children.Clear();
var array = Array.CreateInstance(elementType, all.Count);
((System.Collections.ICollection) all).CopyTo(array, 0);
args[myParam.Name] = PropertyTreeMetaObject.Create(array);
}
return args;
}
