/// <summary>
/// 从指定类型继承
/// </summary>
/// <param name="typeBuilder"></param>
/// <param name="proxyMethodBuilder"></param>
/// <param name="type"></param>
/// <param name="declaredMembersOnly"></param>
protected virtual void InheritType(TypeBuilder typeBuilder,
IProxyMethodBuilder proxyMethodBuilder, Type type, bool declaredMembersOnly)
{
IDictionary <string, MethodBuilder> methodMap = new Dictionary <string, MethodBuilder>();
BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.Instance | BindingFlags.NonPublic;
if (declaredMembersOnly)
{
bindingFlags |= BindingFlags.DeclaredOnly;
}
// 重写虚方法
MethodInfo[] methods = type.GetMethods(bindingFlags);
foreach (MethodInfo method in methods)
{
MethodAttributes memberAccess = method.Attributes & MethodAttributes.MemberAccessMask;
if (method.IsVirtual && !method.IsFinal && !method.Name.Equals("Finalize") &&
(memberAccess == MethodAttributes.Public || memberAccess == MethodAttributes.Family || memberAccess == MethodAttributes.FamORAssem))
{
MethodBuilder methodBuilder = proxyMethodBuilder.BuildProxyMethod(method, null);
ApplyMethodAttributes(methodBuilder, method);
methodMap[method.Name] = methodBuilder;
}
}
// 重写虚属性
foreach (PropertyInfo property in type.GetProperties(bindingFlags))
{
ImplementProperty(typeBuilder, type, property, methodMap);
}
// 重写虚事件
foreach (EventInfo evt in type.GetEvents(bindingFlags))
{
ImplementEvent(typeBuilder, type, evt, methodMap);
}
}
/// <summary>
/// Implements an interface.
/// </summary>
/// <remarks>
/// Generates proxy methods that belongs to the interface
/// using the specified <paramref name="proxyMethodBuilder"/>.
/// </remarks>
/// <param name="typeBuilder">The type builder to use.</param>
/// <param name="proxyMethodBuilder">
/// The <see cref="IProxyMethodBuilder"/> implementation to use
/// </param>
/// <param name="intf">The interface to implement.</param>
/// <param name="targetType">
/// The <see cref="System.Type"/> of the target object.
/// </param>
/// <param name="proxyVirtualMethods">
/// <see langword="false"/> if target virtual methods should not be proxied;
/// otherwise <see langword="true"/>.
/// </param>
protected virtual void ImplementInterface(TypeBuilder typeBuilder,
IProxyMethodBuilder proxyMethodBuilder, Type intf,
Type targetType, bool proxyVirtualMethods)
{
IDictionary methodMap = new Hashtable();
InterfaceMapping mapping = GetInterfaceMapping(targetType, intf);
typeBuilder.AddInterfaceImplementation(intf);
for (int i = 0; i < mapping.InterfaceMethods.Length; i++)
{
if (!proxyVirtualMethods &&
!mapping.TargetMethods[i].DeclaringType.IsInterface &&
mapping.TargetMethods[i].IsVirtual &&
!mapping.TargetMethods[i].IsFinal)
{
continue;
}
MethodBuilder methodBuilder = proxyMethodBuilder.BuildProxyMethod(
mapping.TargetMethods[i], mapping.InterfaceMethods[i]);
ApplyMethodAttributes(methodBuilder, mapping.TargetMethods[i]);
methodMap[mapping.InterfaceMethods[i].Name] = methodBuilder;
}
foreach (PropertyInfo property in intf.GetProperties())
{
ImplementProperty(typeBuilder, intf, property, methodMap);
}
foreach (EventInfo evt in intf.GetEvents())
{
ImplementEvent(typeBuilder, intf, evt, methodMap);
}
}
/// <summary>
/// Inherit from a type.
/// </summary>
/// <remarks>
/// Generates proxy methods for base virtual methods
/// using the specified <paramref name="proxyMethodBuilder"/>.
/// </remarks>
/// <param name="typeBuilder">
/// The <see cref="System.Type"/> builder to use for code generation.
/// </param>
/// <param name="proxyMethodBuilder">
/// The <see cref="IProxyMethodBuilder"/> implementation to use to override base virtual methods.
/// </param>
/// <param name="type">The <see cref="System.Type"/> to inherit from.</param>
/// <param name="declaredMembersOnly">
/// <see langword="true"/> if only members declared at the level
/// of the supplied <paramref name="type"/>'s hierarchy should be proxied;
/// otherwise <see langword="false"/>.
/// </param>
protected virtual void InheritType(TypeBuilder typeBuilder,
IProxyMethodBuilder proxyMethodBuilder, Type type, bool declaredMembersOnly)
{
IDictionary<string, MethodBuilder> methodMap = new Dictionary<string, MethodBuilder>();
BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.Instance | BindingFlags.NonPublic;
if (declaredMembersOnly)
{
bindingFlags |= BindingFlags.DeclaredOnly;
}
// override virtual methods
MethodInfo[] methods = type.GetMethods(bindingFlags);
foreach (MethodInfo method in methods)
{
MethodAttributes memberAccess = method.Attributes & MethodAttributes.MemberAccessMask;
if (method.IsVirtual && !method.IsFinal && !method.Name.Equals("Finalize")
&& (memberAccess == MethodAttributes.Public || memberAccess == MethodAttributes.Family || memberAccess == MethodAttributes.FamORAssem))
{
MethodBuilder methodBuilder = proxyMethodBuilder.BuildProxyMethod(method, null);
ApplyMethodAttributes(methodBuilder, method);
methodMap[method.Name] = methodBuilder;
}
}
// override virtual properties
foreach (PropertyInfo property in type.GetProperties(bindingFlags))
{
ImplementProperty(typeBuilder, type, property, methodMap);
}
// override virtual events
foreach (EventInfo evt in type.GetEvents(bindingFlags))
{
ImplementEvent(typeBuilder, type, evt, methodMap);
}
}
/// <summary>
/// Implements an interface.
/// </summary>
/// <remarks>
/// Generates proxy methods that belongs to the interface
/// using the specified <paramref name="proxyMethodBuilder"/>.
/// </remarks>
/// <param name="typeBuilder">The type builder to use.</param>
/// <param name="proxyMethodBuilder">
/// The <see cref="IProxyMethodBuilder"/> implementation to use
/// </param>
/// <param name="intf">The interface to implement.</param>
/// <param name="targetType">
/// The <see cref="System.Type"/> of the target object.
/// </param>
/// <param name="proxyVirtualMethods">
/// <see langword="false"/> if target virtual methods should not be proxied;
/// otherwise <see langword="true"/>.
/// </param>
protected virtual void ImplementInterface(TypeBuilder typeBuilder,
IProxyMethodBuilder proxyMethodBuilder, Type intf,
Type targetType, bool proxyVirtualMethods)
{
Dictionary<string, MethodBuilder> methodMap = new Dictionary<string, MethodBuilder>();
InterfaceMapping mapping = GetInterfaceMapping(targetType, intf);
typeBuilder.AddInterfaceImplementation(intf);
for (int i = 0; i < mapping.InterfaceMethods.Length; i++)
{
if (!proxyVirtualMethods &&
!mapping.TargetMethods[i].DeclaringType.IsInterface &&
mapping.TargetMethods[i].IsVirtual &&
!mapping.TargetMethods[i].IsFinal)
continue;
MethodBuilder methodBuilder = proxyMethodBuilder.BuildProxyMethod(
mapping.TargetMethods[i], mapping.InterfaceMethods[i]);
ApplyMethodAttributes(methodBuilder, mapping.TargetMethods[i]);
methodMap[mapping.InterfaceMethods[i].Name] = methodBuilder;
}
foreach (PropertyInfo property in intf.GetProperties())
{
ImplementProperty(typeBuilder, intf, property, methodMap);
}
foreach (EventInfo evt in intf.GetEvents())
{
ImplementEvent(typeBuilder, intf, evt, methodMap);
}
}