public Expression[] GetConstructorInvocationArguments(Expression[] arguments, ClassEmitter proxy)
{
var allArguments = new Expression[arguments.Length + 1];
allArguments[0] = new ReferenceExpression(BuildDelegateToken(proxy));
Array.Copy(arguments, 0, allArguments, 1, arguments.Length);
return allArguments;
}
protected override MethodGenerator GetMethodGenerator(MetaMethod method, ClassEmitter @class,
ProxyGenerationOptions options,
OverrideMethodDelegate overrideMethod)
{
if (methodsToSkip.Contains(method.Method))
{
return null;
}
if (!method.Proxyable)
{
return new MinimialisticMethodGenerator(method,
overrideMethod);
}
if (IsDirectlyAccessible(method) == false)
{
return IndirectlyCalledMethodGenerator(method, @class, options, overrideMethod);
}
var invocation = GetInvocationType(method, @class, options);
return new MethodWithInvocationGenerator(method,
@class.GetField("__interceptors"),
invocation,
(c, m) => c.GetField("__target").ToExpression(),
overrideMethod,
null);
}
public virtual void Generate(ClassEmitter @class, ProxyGenerationOptions options)
{
foreach (var method in methods)
{
if (!method.Standalone)
{
continue;
}
ImplementMethod(method,
@class,
options,
@class.CreateMethod);
}
foreach (var property in properties)
{
ImplementProperty(@class, property, options);
}
foreach (var @event in events)
{
ImplementEvent(@class, @event, options);
}
}
public void ForceUnsignedTrueWithSignedTypes()
{
ClassEmitter emitter = new ClassEmitter(generator.ProxyBuilder.ModuleScope, "Foo", typeof (object), Type.EmptyTypes,
TypeAttributes.Public, true);
Type t = emitter.BuildType();
Assert.IsFalse(StrongNameUtil.IsAssemblySigned(t.GetTypeInfo().Assembly));
}
/// <summary>
/// Initializes a new instance of the AdapterBuilderContext class.
/// </summary>
/// <param name="originalObject"></param>
/// <param name="classEmitter"></param>
/// <param name="adaptedObjectRef"></param>
public AdapterBuilderStageContext(Type originalObject, ClassEmitter classEmitter, FieldReference adaptedObjectRef, MethodInfo originalMethod)
{
OriginalObject = originalObject;
ClassEmitter = classEmitter;
AdaptedObjectRef = adaptedObjectRef;
OriginalMethod = originalMethod;
}
private Type GetInvocationType(MetaMethod method, ClassEmitter @class, ProxyGenerationOptions options)
{
var scope = @class.ModuleScope;
Type[] invocationInterfaces;
if (canChangeTarget)
{
invocationInterfaces = new[] { typeof(IInvocation), typeof(IChangeProxyTarget) };
}
else
{
invocationInterfaces = new[] { typeof(IInvocation) };
}
var key = new CacheKey(method.Method, CompositionInvocationTypeGenerator.BaseType, invocationInterfaces, null);
// no locking required as we're already within a lock
var invocation = scope.GetFromCache(key);
if (invocation != null)
{
return invocation;
}
invocation = new CompositionInvocationTypeGenerator(method.Method.DeclaringType,
method,
method.Method,
canChangeTarget,
null)
.Generate(@class, options, namingScope).BuildType();
scope.RegisterInCache(key, invocation);
return invocation;
}
protected override MethodGenerator GetMethodGenerator(MetaMethod method, ClassEmitter @class,
ProxyGenerationOptions options,
OverrideMethodDelegate overrideMethod)
{
if (!method.Proxyable)
{
return new ForwardingMethodGenerator(method,
overrideMethod,
(c, m) => c.GetField("__target"));
}
var targetMethod = options.ProxyEffectiveType == null ? method.Method : InvocationHelper.GetMethodOnType(proxyTargetType, method.Method);
if (targetMethod == null)
{
return new MinimialisticMethodGenerator(method, overrideMethod);
}
var invocation = GetInvocationType(method, targetMethod, @class, options);
return new MethodWithInvocationGenerator(method,
@class.GetField("__interceptors"),
invocation,
(c, m) => c.GetField("__target").ToExpression(),
overrideMethod,
null);
}
private static TypeBuilder CreateTypeBuilder (ClassEmitter maintype, string name, Type baseType, Type[] interfaces)
{
return maintype.TypeBuilder.DefineNestedType (
name,
TypeAttributes.Sealed | TypeAttributes.NestedPublic | TypeAttributes.Class,
baseType, interfaces);
}
public void AutomaticDefaultConstructorGenerationWithClosedGenericType()
{
ClassEmitter emitter = new ClassEmitter(generator.ProxyBuilder.ModuleScope, "Foo", typeof (List<object>),
Type.EmptyTypes);
Type t = emitter.BuildType();
Activator.CreateInstance(t);
}
protected override MethodGenerator GetMethodGenerator(MetaMethod method, ClassEmitter @class,
ProxyGenerationOptions options,
OverrideMethodDelegate overrideMethod)
{
if (methodsToSkip.Contains(method.Method))
return null;
if (!method.Proxyable)
{
return new MinimialisticMethodGenerator(method,
overrideMethod);
}
if (ExplicitlyImplementedInterfaceMethod(method))
{
#if SILVERLIGHT
return null;
#else
return ExplicitlyImplementedInterfaceMethodGenerator(method, @class, options, overrideMethod);
#endif
}
var invocation = GetInvocationType(method, @class, options);
return new MethodWithInvocationGenerator(method,
@class.GetField("__interceptors"),
invocation,
(c, m) => new TypeTokenExpression(targetType),
overrideMethod,
null);
}
// 重载 InterfaceProxyWithTargetInterfaceContributor 中的方法，以指定使用扩展的 InvocationType 生成方法执行类
protected override MethodGenerator GetMethodGenerator(MetaMethod method, ClassEmitter @class, ProxyGenerationOptions options, OverrideMethodDelegate overrideMethod)
{
if (!method.Proxyable)
{
return new MinimialisticMethodGenerator(method, overrideMethod);
}
return new MethodWithInvocationGenerator(method, @class.GetField("__interceptors"), this.GetInvocationType(method, @class, options), this.getTargetExpression, overrideMethod, null);
}
// 重载 InterfaceProxyWithTargetInterfaceContributor 中的方法，以指定使用扩展的 InvocationType 生成方法执行类
protected override MethodGenerator GetMethodGenerator(MetaMethod method, ClassEmitter @class, ProxyGenerationOptions options, OverrideMethodDelegate overrideMethod)
{
if (!method.Proxyable)
{
return new ForwardingMethodGenerator(method, overrideMethod, (c, m) => c.GetField("__target"));
}
return new MethodWithInvocationGenerator(method, @class.GetField("__interceptors"), this.GetInvocationType(method, @class, options), (c, m) => c.GetField("__target").ToExpression(), overrideMethod, null);
}
public void ForceUnsignedFalseWithSignedTypes()
{
const bool shouldBeSigned = true;
ClassEmitter emitter = new ClassEmitter(generator.ProxyBuilder.ModuleScope, "Foo", typeof (object), Type.EmptyTypes,
TypeAttributes.Public, false);
Type t = emitter.BuildType();
Assert.AreEqual(shouldBeSigned, StrongNameUtil.IsAssemblySigned(t.GetTypeInfo().Assembly));
}
private FieldReference CreateTargetField(ClassEmitter emitter)
{
var targetField = emitter.CreateField("__target", targetType);
#if FEATURE_SERIALIZATION
emitter.DefineCustomAttributeFor<XmlIgnoreAttribute>(targetField);
#endif
return targetField;
}
private FieldReference CreateTargetField(ClassEmitter emitter)
{
var targetField = emitter.CreateField("__target", targetType);
#if !SILVERLIGHT
emitter.DefineCustomAttributeFor<XmlIgnoreAttribute>(targetField);
#endif
return targetField;
}
public void StaticMethodArguments ()
{
ClassEmitter emitter = new ClassEmitter (generator.ProxyBuilder.ModuleScope, "Foo", typeof (List<object>), Type.EmptyTypes);
MethodEmitter methodEmitter = emitter.CreateMethod ("StaticMethod", MethodAttributes.Public | MethodAttributes.Static,
typeof (string), typeof (string));
methodEmitter.CodeBuilder.AddStatement (new ReturnStatement (methodEmitter.Arguments[0]));
Type t = emitter.BuildType ();
Assert.AreEqual ("five", t.GetMethod ("StaticMethod").Invoke (null, new object[] { "five" }));
}
protected override void CreateInvocationForMethod(ClassEmitter emitter, MethodInfo method, Type proxyTargetType)
{
method2methodOnTarget[method] = method;
method2Invocation[method] = BuildInvocationNestedType(emitter, targetType,
proxyTargetType,
method, null,
ConstructorVersion.WithTargetMethod);
}
protected void SetGenerationOptions (ProxyGenerationOptions options, ClassEmitter emitter)
{
if (proxyGenerationOptions != null)
{
throw new InvalidOperationException ("ProxyGenerationOptions can only be set once.");
}
proxyGenerationOptions = options;
proxyGenerationOptionsField = emitter.CreateStaticField ("proxyGenerationOptions", typeof (ProxyGenerationOptions));
}
public void InstanceMethodArguments ()
{
ClassEmitter emitter = new ClassEmitter (generator.ProxyBuilder.ModuleScope, "Foo", typeof (List<object>), Type.EmptyTypes);
MethodEmitter methodEmitter = emitter.CreateMethod ("InstanceMethod", MethodAttributes.Public,
typeof (string), typeof (string));
methodEmitter.CodeBuilder.AddStatement (new ReturnStatement (methodEmitter.Arguments[0]));
Type t = emitter.BuildType ();
object instance = Activator.CreateInstance (t);
Assert.AreEqual ("six", t.GetMethod ("InstanceMethod").Invoke (instance, new object[] { "six" }));
}
/// <summary>
/// Generates the class defined by the provided class emitter.
/// </summary>
/// <param name="class">
/// The <see cref="Castle.DynamicProxy.Generators.Emitters.ClassEmitter"/>
/// being used to build the target type.
/// </param>
/// <param name="options">The options to use during proxy generation.</param>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="class" /> is <see langword="null" />.
/// </exception>
/// <remarks>
/// <para>
/// This overridden version of the method does everything that the base
/// <see cref="Castle.DynamicProxy.Contributors.ProxyInstanceContributor.Generate"/>
/// method does but it skips the part where it checks for non-inherited
/// attributes and copies them over from the proxy target.
/// </para>
/// </remarks>
public override void Generate(ClassEmitter @class, ProxyGenerationOptions options)
{
if (@class == null)
{
throw new ArgumentNullException("class");
}
FieldReference field = @class.GetField("__interceptors");
this.ImplementGetObjectData(@class);
this.ImplementProxyTargetAccessor(@class, field);
}
protected override MethodEmitter BuildProxiedMethodBody(MethodEmitter emitter, ClassEmitter @class,
ProxyGenerationOptions options, INamingScope namingScope)
{
var targetReference = getTargetReference(@class, MethodToOverride);
emitter.CodeBuilder.AddStatement(
new ExpressionStatement(
new IfNullExpression(targetReference, IfNull(emitter.ReturnType), IfNotNull(targetReference))));
return emitter;
}
protected override MethodGenerator GetMethodGenerator(MetaMethod method, ClassEmitter @class,
ProxyGenerationOptions options,
OverrideMethodDelegate overrideMethod)
{
if (!method.Proxyable)
{
return new OptionallyForwardingMethodGenerator(method, overrideMethod, getTargetReference);
}
return base.GetMethodGenerator(method, @class, options, overrideMethod);
}
protected FieldReference BuildMethodInterceptorsField(ClassEmitter @class, MethodInfo method, INamingScope namingScope)
{
var methodInterceptors = @class.CreateField(
namingScope.GetUniqueName(string.Format("interceptors_{0}", method.Name)),
typeof(IInterceptor[]),
false);
#if !SILVERLIGHT
@class.DefineCustomAttributeFor<XmlIgnoreAttribute>(methodInterceptors);
#endif
return methodInterceptors;
}
protected override void CreateInvocationForMethod(ClassEmitter emitter, MethodInfo method, Type proxyTargetType)
{
MethodInfo methodOnTarget = FindMethodOnTargetType(method, proxyTargetType, true);
method2methodOnTarget[method] = methodOnTarget;
method2Invocation[method] = BuildInvocationNestedType(emitter, proxyTargetType,
IsMixinMethod (method) ? method.DeclaringType : proxyTargetType,
method, methodOnTarget,
ConstructorVersion.WithTargetMethod, true);
}
public virtual void Generate(ClassEmitter @class, ProxyGenerationOptions options)
{
var interceptors = @class.GetField("__interceptors");
#if FEATURE_SERIALIZATION
ImplementGetObjectData(@class);
#endif
ImplementProxyTargetAccessor(@class, interceptors);
foreach (var attribute in targetType.GetTypeInfo().GetNonInheritableAttributes())
{
@class.DefineCustomAttribute(attribute.Builder);
}
}
private Type GetInvocationType(MetaMethod method, ClassEmitter emitter, ProxyGenerationOptions options)
{
ModuleScope scope = emitter.ModuleScope;
CacheKey key = new CacheKey(method.Method, WCFCompositionInvocationTypeGenerator.BaseType, null, null);
Type invocation = scope.GetFromCache(key);
if (invocation == null)
{
invocation = new WCFCompositionInvocationTypeGenerator(method.Method.DeclaringType, method, method.Method, false, null).Generate(emitter, options, base.namingScope).BuildType();
scope.RegisterInCache(key, invocation);
}
return invocation;
}
public void ForceUnsignedFalseWithSignedTypes()
{
#if SILVERLIGHT // Silverlight does not allow us to sign generated assemblies
const bool shouldBeSigned = false;
#else
const bool shouldBeSigned = true;
#endif
ClassEmitter emitter = new ClassEmitter(generator.ProxyBuilder.ModuleScope, "Foo", typeof (object), Type.EmptyTypes,
TypeAttributes.Public, false);
Type t = emitter.BuildType();
Assert.AreEqual(shouldBeSigned, StrongNameUtil.IsAssemblySigned(t.Assembly));
}
public virtual void Generate(ClassEmitter @class, ProxyGenerationOptions options)
{
var interceptors = @class.GetField("__interceptors");
#if !SILVERLIGHT
ImplementGetObjectData(@class);
#endif
ImplementProxyTargetAccessor(@class, interceptors);
foreach (var attribute in targetType.GetNonInheritableAttributes())
{
@class.DefineCustomAttribute(attribute);
}
}
protected void ImplementProxyTargetAccessor(ClassEmitter emitter, FieldReference interceptorsField)
{
var dynProxyGetTarget = emitter.CreateMethod("DynProxyGetTarget", typeof(object));
dynProxyGetTarget.CodeBuilder.AddStatement(
new ReturnStatement(new ConvertExpression(typeof(object), targetType, GetTargetReferenceExpression(emitter))));
var getInterceptors = emitter.CreateMethod("GetInterceptors", typeof(IInterceptor[]));
getInterceptors.CodeBuilder.AddStatement(
new ReturnStatement(interceptorsField));
}
protected override MethodGenerator GetMethodGenerator(MetaMethod method, ClassEmitter @class,
ProxyGenerationOptions options,
OverrideMethodDelegate overrideMethod)
{
var invocation = GetInvocationType(method, @class, options);
return new MethodWithInvocationGenerator(method,
@class.GetField("__interceptors"),
invocation,
(c, m) => c.GetField("__target").ToExpression(),
overrideMethod,
null);
}
