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;
}
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);
}
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;
}
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 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);
}
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;
}
