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;
}
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 void CreateSelectorField(ClassEmitter emitter)
{
if (ProxyGenerationOptions.Selector == null)
{
return;
}
emitter.CreateField("__selector", typeof(IInterceptorSelector));
return;
}
protected void CreateInterceptorsField(ClassEmitter emitter)
{
var interceptorsField = emitter.CreateField("__interceptors", typeof (IInterceptor[]));
#if !SILVERLIGHT
emitter.DefineCustomAttributeFor<XmlIgnoreAttribute>(interceptorsField);
#endif
}
public void CreateFieldWithAttributes()
{
ClassEmitter emitter = new ClassEmitter(generator.ProxyBuilder.ModuleScope, "Foo", typeof (object), Type.EmptyTypes);
emitter.CreateField("myField", typeof (string), FieldAttributes.FamANDAssem | FieldAttributes.InitOnly);
Type t = emitter.BuildType();
FieldInfo field = t.GetField("myField", BindingFlags.NonPublic | BindingFlags.Instance);
Assert.IsNotNull(field);
Assert.AreEqual(FieldAttributes.FamANDAssem | FieldAttributes.InitOnly, field.Attributes);
}
private void CreateFields(ClassEmitter emitter, Type proxyTargetType)
{
base.CreateFields(emitter);
targetField = emitter.CreateField("__target", proxyTargetType);
emitter.DefineCustomAttributeFor<XmlIgnoreAttribute>(targetField);
}
private FieldReference BuildTargetField(ClassEmitter @class, Type type)
{
var name = "__mixin_" + type.FullName.Replace(".", "_");
return @class.CreateField(namingScope.GetUniqueName(name), type);
}
/// <summary>
/// Builds the adapter.
/// </summary>
/// <returns></returns>
public Type Build()
{
//Setup emitter
ClassEmitter classEmitter = new ClassEmitter(ModuleScope,
OriginalObject.Name + "Adapter",
typeof(AdapterBase),
new Type[] { }, TypeAttributes.Class,
true);
//Add a field to hold a reference to the original object that is being adapter.
FieldReference adaptedObjectReference = classEmitter.CreateField("_Original", OriginalObject);
//Add a constructor that accepts a reference to the original object and
//assigns that reference to the field.
ArgumentReference parameter = new ArgumentReference(OriginalObject);
ConstructorEmitter constructor = classEmitter.CreateConstructor(parameter);
constructor.CodeBuilder.AddStatement(
new AssignStatement(adaptedObjectReference, new ReferenceExpression(parameter)));
constructor.CodeBuilder.AddStatement(new ReturnStatement());
//For each method, walk the pipeline
foreach (MethodInfo method in OriginalObject.GetMethods())
{
AdapterBuilderStageContext context =
new AdapterBuilderStageContext(OriginalObject, classEmitter, adaptedObjectReference, method);
WalkPipeline(context);
}
//build the type
return classEmitter.BuildType();
}
protected void CreateInterceptorsField(ClassEmitter emitter)
{
var interceptorsField = emitter.CreateField("__interceptors", typeof(IInterceptor[]));
#if FEATURE_SERIALIZATION
emitter.DefineCustomAttributeFor<XmlIgnoreAttribute>(interceptorsField);
#endif
}
private void CreateFields(ClassEmitter emitter, Type proxyTargetType)
{
base.CreateFields(emitter);
targetField = emitter.CreateField("__target", proxyTargetType);
#if FEATURE_SERIALIZATION
emitter.DefineCustomAttributeFor<XmlIgnoreAttribute>(targetField);
#endif
}
protected FieldReference[] AddMixinFields(ClassEmitter emitter)
{
List<FieldReference> mixins = new List<FieldReference>();
foreach (Type type in ProxyGenerationOptions.MixinData.MixinInterfacesAndPositions.Keys)
{
FieldReference fieldReference = emitter.CreateField("__mixin_" + type.FullName.Replace(".", "_"), type);
interface2MixinFieldReference[type] = fieldReference;
mixins.Add(fieldReference);
}
return mixins.ToArray();
}
protected MethodEmitter ImplementProxiedMethod(
Type targetType,
MethodEmitter methodEmitter,
MethodInfo method,
ClassEmitter emitter,
NestedClassEmitter invocationImpl,
FieldReference interceptorsField,
Reference targetRef,
ConstructorVersion version,
MethodInfo methodOnTarget)
{
CheckNotGenericTypeDefinition(targetType, "targetType");
methodEmitter.CopyParametersAndReturnTypeFrom(method, emitter);
TypeReference[] dereferencedArguments = IndirectReference.WrapIfByRef(methodEmitter.Arguments);
Type iinvocation = invocationImpl.TypeBuilder;
Trace.Assert(method.IsGenericMethod == iinvocation.IsGenericTypeDefinition);
bool isGenericInvocationClass = false;
Type[] genericMethodArgs = new Type[0];
if (method.IsGenericMethod)
{
// bind generic method arguments to invocation's type arguments
genericMethodArgs = methodEmitter.MethodBuilder.GetGenericArguments();
iinvocation = iinvocation.MakeGenericType(genericMethodArgs);
isGenericInvocationClass = true;
}
Expression typeTokenFieldExp = typeTokenField.ToExpression();
Expression methodInfoTokenExp;
string tokenFieldName;
if (method2TokenField.ContainsKey(method)) // Token is in the cache
{
FieldReference methodTokenField = method2TokenField[method];
tokenFieldName = methodTokenField.Reference.Name;
methodInfoTokenExp = methodTokenField.ToExpression();
}
else
{
// Not in the cache: generic method
MethodInfo genericMethod = method.MakeGenericMethod(genericMethodArgs);
// Need random suffix added to the name, so that we don't end up with duplicate field names for
// methods with the same name, but different generic parameters
tokenFieldName = string.Format("{0}_{1}_{2}", genericMethod.Name, genericMethodArgs.Length,
Guid.NewGuid().ToString("N"));
methodInfoTokenExp = new MethodTokenExpression(genericMethod);
}
LocalReference invocationImplLocal = methodEmitter.CodeBuilder.DeclareLocal(iinvocation);
// TODO: Initialize iinvocation instance with ordinary arguments and in and out arguments
Expression interceptors = interceptorsField.ToExpression();
// Create the field to store the selected interceptors for this method if an InterceptorSelector is specified
FieldReference methodInterceptors = null;
if (proxyGenerationOptions.Selector != null)
{
// If no interceptors are returned, should we invoke the base.Method directly? Looks like we should not.
methodInterceptors = emitter.CreateField(string.Format("{0}_interceptors", tokenFieldName), typeof(IInterceptor[]));
}
ConstructorInfo constructor = invocationImpl.Constructors[0].ConstructorBuilder;
if (isGenericInvocationClass)
{
constructor = TypeBuilder.GetConstructor(iinvocation, constructor);
}
NewInstanceExpression newInvocImpl;
if (version == ConstructorVersion.WithTargetMethod)
{
Expression methodOnTargetTokenExp;
if (method2TokenField.ContainsKey(methodOnTarget)) // Token is in the cache
{
methodOnTargetTokenExp = method2TokenField[methodOnTarget].ToExpression();
}
else
{
// Not in the cache: generic method
methodOnTargetTokenExp = new MethodTokenExpression(methodOnTarget.MakeGenericMethod(genericMethodArgs));
}
if (methodInterceptors == null)
{
newInvocImpl = //actual contructor call
new NewInstanceExpression(constructor,
targetRef.ToExpression(),
interceptors,
typeTokenFieldExp,
methodOnTargetTokenExp,
methodInfoTokenExp,
new ReferencesToObjectArrayExpression(dereferencedArguments),
SelfReference.Self.ToExpression());
}
else
{
MethodInvocationExpression methodInvocationExpression =
new MethodInvocationExpression(proxyGenerationOptionsField, proxyGenerationOptions_Selector);
methodInvocationExpression.VirtualCall = true;
newInvocImpl = //actual contructor call
new NewInstanceExpression(constructor,
targetRef.ToExpression(),
interceptors,
typeTokenFieldExp,
methodOnTargetTokenExp,
methodInfoTokenExp,
new ReferencesToObjectArrayExpression(dereferencedArguments),
SelfReference.Self.ToExpression(),
methodInvocationExpression,
new AddressOfReferenceExpression(methodInterceptors));
}
}
else
{
if (methodInterceptors == null)
{
newInvocImpl =
new NewInstanceExpression(constructor,
targetRef.ToExpression(),
interceptors,
typeTokenFieldExp,
methodInfoTokenExp,
new ReferencesToObjectArrayExpression(dereferencedArguments),
SelfReference.Self.ToExpression());
}
else
{
MethodInvocationExpression methodInvocationExpression =
new MethodInvocationExpression(proxyGenerationOptionsField, proxyGenerationOptions_Selector);
methodInvocationExpression.VirtualCall = true;
newInvocImpl =
new NewInstanceExpression(constructor,
targetRef.ToExpression(),
interceptors,
typeTokenFieldExp,
methodInfoTokenExp,
new ReferencesToObjectArrayExpression(dereferencedArguments),
SelfReference.Self.ToExpression(),
methodInvocationExpression,
new AddressOfReferenceExpression(methodInterceptors));
}
}
methodEmitter.CodeBuilder.AddStatement(new AssignStatement(invocationImplLocal, newInvocImpl));
if (method.ContainsGenericParameters)
{
EmitLoadGenricMethodArguments(methodEmitter, method.MakeGenericMethod(genericMethodArgs), invocationImplLocal);
}
methodEmitter.CodeBuilder.AddStatement(
new ExpressionStatement(new MethodInvocationExpression(invocationImplLocal, Constants.AbstractInvocationProceed)));
CopyOutAndRefParameters(dereferencedArguments, invocationImplLocal, method, methodEmitter);
if (method.ReturnType != typeof(void))
{
// Emit code to return with cast from ReturnValue
MethodInvocationExpression getRetVal =
new MethodInvocationExpression(invocationImplLocal, typeof(AbstractInvocation).GetMethod("get_ReturnValue"));
methodEmitter.CodeBuilder.AddStatement(
new ReturnStatement(new ConvertExpression(methodEmitter.ReturnType, getRetVal)));
}
else
{
methodEmitter.CodeBuilder.AddStatement(new ReturnStatement());
}
return methodEmitter;
}
private void CreateFields(ClassEmitter emitter, Type proxyTargetType)
{
base.CreateFields(emitter);
targetField = emitter.CreateField("__target", proxyTargetType);
#if SILVERLIGHT
#warning XmlIncludeAttribute is in silverlight, do we want to explore this?
#else
emitter.DefineCustomAttributeFor<XmlIgnoreAttribute>(targetField);
#endif
}
