public void VisitElement(XElement element, IContainer container, IInitializationContext context)
{
string?abstractTypeName = element.Attributes(AbstractTypeAttributeName)
.Select(attr => attr.Value)
.FirstOrDefault();
string?concreteClassName = element.Attributes(ConcreteTypeAttributeName)
.Select(attr => attr.Value)
.FirstOrDefault();
bool isSingleton = element
.Attributes(SingletonAttributeName)
.Any(a => singletonIsTrueValues.Contains(a.Value.ToLower()));
if (abstractTypeName == null || concreteClassName == null)
{
throw new ConfirurationFileFormatException("Bind element should have abstarct and concrete attributes!");
}
var abstractType = context.GetType(abstractTypeName);
var concreteType = context.GetType(concreteClassName);
var binder = container.Bind(abstractType);
if (isSingleton)
{
binder = binder.Singleton();
}
if (!element.HasElements)
{
binder.To(concreteType);
}
else
{
var factoryMethod = CreateFactoryMethodFor(concreteType, element, context);
binder.ToMethod(factoryMethod);
}
}
public override Expression VisitElement(XElement element, IInitializationContext context)
{
var className = element
.Attributes(ClassAttributeName)
.Select(attr => attr.Value)
.FirstOrDefault();
if (className == null)
{
throw new ConfirurationFileFormatException("Object element should have class attribute");
}
var type = context.GetType(className);
if (element.HasElements)
{
var subExpression = element
.Elements()
.Select(e => builder.BuildObjectBuildingExpressionTree(e, context))
.ToArray();
var types = subExpression
.Select(expression => expression.Type)
.ToArray();
var constructor = type.GetConstructor(types);
if (constructor == null)
{
var typesStr = string.Join(", ", types.Select(t => t.FullName).ToArray());
throw new ConfirurationFileFormatException($"Class {className} doesn't have constructor with parameter types \"{typesStr}\"");
}
return(Expression.New(constructor, subExpression));
}
else
{
var method = CreateInstanceMethod.MakeGenericMethod(new[] { type });
return(Expression.Call(builder.containerParameter, method, new Expression[0]));
}
}
public override Expression VisitElement(XElement element, IInitializationContext context)
{
if (element.HasElements)
{
throw new ConfirurationFileFormatException("Instance element shouldn't have child elements");
}
var typeAttribute = element.Attributes(TypeAttributeName)
.Select(attr => attr.Value)
.FirstOrDefault();
if (typeAttribute == null)
{
throw new ConfirurationFileFormatException("Instance element should have type attribute");
}
var type = context.GetType(typeAttribute);
var method = GetGenericMethod.MakeGenericMethod(new[] { type });
return(Expression.Call(builder.containerParameter, method, new Expression[0]));
}