/// <summary>
/// Generates a proxy template.
/// </summary>
/// <param name="proxyDefinition">The proxy definition.</param>
/// <returns>The proxy template.</returns>
private IProxyTemplate GenerateProxyTemplate(IProxyDefinition proxyDefinition)
{
var typeBuilder = _typeBuilderFactory.CreateBuilder(proxyDefinition.ParentType);
var proxyGenerator = new ProxyGenerator(typeBuilder, _interceptionFilter);
return(proxyGenerator.GenerateProxyTemplate(proxyDefinition));
}
/// <summary>
/// Initializes a new instance of the <see cref="ProxyTemplate"/> class.
/// </summary>
/// <param name="proxyDefinition">The proxy definition.</param>
/// <param name="implementationType">The implementation type.</param>
/// <param name="eventInfos">The event informations.</param>
/// <param name="propertyInfos">The property informations.</param>
/// <param name="methodInfos">The method informations.</param>
public ProxyTemplate(IProxyDefinition proxyDefinition, Type implementationType, ICollection <EventInfo> eventInfos, ICollection <PropertyInfo> propertyInfos, ICollection <MethodInfo> methodInfos)
{
if (proxyDefinition == null)
{
throw new ArgumentNullException("proxyDefinition");
}
if (implementationType == null)
{
throw new ArgumentNullException("implementationType");
}
if (eventInfos == null)
{
throw new ArgumentNullException("eventInfos");
}
if (propertyInfos == null)
{
throw new ArgumentNullException("propertyInfos");
}
if (methodInfos == null)
{
throw new ArgumentNullException("methodInfos");
}
_proxyDefinition = proxyDefinition;
_implementationType = implementationType;
_eventInfos = eventInfos;
_propertyInfos = propertyInfos;
_methodInfos = methodInfos;
}
/// <summary>
/// Creates a proxyfied interface according to the given definition.
/// </summary>
/// <param name="definition">Definition of the proxy to build.</param>
/// <param name="initialImplementation">Optional first and available implementation.</param>
/// <returns></returns>
internal static ServiceProxyBase CreateProxy(IProxyDefinition definition)
{
Debug.Assert(definition.TypeInterface.IsInterface, "This check MUST be done by ProxyDefinition implementation.");
string dynamicTypeName = String.Format("{0}_Proxy_{1}", definition.TypeInterface.Name, Interlocked.Increment(ref _typeID));
// Defines a public sealed class that implements typeInterface only.
TypeBuilder typeBuilder = _moduleBuilder.DefineType(
dynamicTypeName,
TypeAttributes.Class | TypeAttributes.Sealed,
definition.ProxyBase,
new Type[] { definition.TypeInterface });
// This defines the IService<typeInterface> interface.
if (definition.IsDynamicService)
{
// Our proxy object will implement both typeInterface and IService<typeInterface> interfaces.
Type serviceInterfaceType = typeof(IService <>).MakeGenericType(new Type[] { definition.TypeInterface });
typeBuilder.AddInterfaceImplementation(serviceInterfaceType);
}
ProxyGenerator pg = new ProxyGenerator(typeBuilder, definition);
pg.DefineConstructor();
pg.DefineServiceProperty();
pg.DefineImplementationProperty();
pg.ImplementInterface();
object unavailableImpl = CreateUnavailableImplementation(definition.TypeInterface, dynamicTypeName + "_UN");
return(pg.Finalize(unavailableImpl));
}
public ProxyGenerator(TypeBuilder typeBuilder, IProxyDefinition definition)
{
_typeBuilder = typeBuilder;
_definition = definition;
// Define a member variable to hold the implementation
_implField = typeBuilder.DefineField("_impl", definition.TypeInterface, FieldAttributes.Private);
_processedMethods = new HashSet <MethodInfo>();
_mRefs = new List <MethodInfo>();
_eRefs = new List <EventInfo>();
}
/// <summary>
/// Generates a proxy template based on the specified proxy definition.
/// </summary>
/// <param name="proxyDefinition">The proxy definition.</param>
/// <returns>The proxy template.</returns>
public IProxyTemplate GenerateProxyTemplate(IProxyDefinition proxyDefinition)
{
if (proxyDefinition == null)
throw new ArgumentNullException("proxyDefinition");
// Build type.
proxyDefinition.AcceptVisitor(this);
// Create type.
var type = _typeBuilder.CreateType();
return new ProxyTemplate(proxyDefinition, type, _eventInfos, _propertyInfos, _methodInfos);
}
public IProxyTemplate GenerateProxyTemplate(IProxyDefinition proxyDefinition)
{
if (proxyDefinition == null)
{
throw new ArgumentNullException("proxyDefinition");
}
//这一步就是用于收集要切的方法和属性、事件
proxyDefinition.AcceptVisitor(this);
var type = _typeBuilder.CreateType();
return(new ProxyTemplate(proxyDefinition, type, _eventInfos, _propertyInfos, _methodInfos));
}
/// <summary>
/// Initializes a new instance of the <see cref="ProxyTemplate"/> class.
/// </summary>
/// <param name="proxyDefinition">The proxy definition.</param>
/// <param name="implementationType">The implementation type.</param>
/// <param name="eventInfos">The event informations.</param>
/// <param name="propertyInfos">The property informations.</param>
/// <param name="methodInfos">The method informations.</param>
public ProxyTemplate(IProxyDefinition proxyDefinition, Type implementationType, ICollection<EventInfo> eventInfos, ICollection<PropertyInfo> propertyInfos, ICollection<MethodInfo> methodInfos)
{
if (proxyDefinition == null)
throw new ArgumentNullException("proxyDefinition");
if (implementationType == null)
throw new ArgumentNullException("implementationType");
if (eventInfos == null)
throw new ArgumentNullException("eventInfos");
if (propertyInfos == null)
throw new ArgumentNullException("propertyInfos");
if (methodInfos == null)
throw new ArgumentNullException("methodInfos");
_proxyDefinition = proxyDefinition;
_implementationType = implementationType;
_eventInfos = eventInfos;
_propertyInfos = propertyInfos;
_methodInfos = methodInfos;
}
/// <summary>
/// Generates a proxy template.
/// </summary>
/// <param name="proxyDefinition">The proxy definition.</param>
/// <returns>The proxy template.</returns>
private IProxyTemplate GenerateProxyTemplate(IProxyDefinition proxyDefinition)
{
var typeBuilder = _typeBuilderFactory.CreateBuilder(proxyDefinition.ParentType);
var proxyGenerator = new ProxyGenerator(typeBuilder, _interceptionFilter);
return proxyGenerator.GenerateProxyTemplate(proxyDefinition);
}
