public void Intercept(MethodInfo methodInfo, object attribute, GeneratedVariable processor, GeneratedVariable variable, GeneratedVariable encapsulating)
{
var defaultAttribute = attribute as IDefaultProcessEncapsulatingAttribute;
var funcProcessor = GetMethodInfo(() => defaultAttribute.Process<object>(null), methodInfo.ReturnType);
if(processor != null)
variable.AssignFrom(() => encapsulating.Invoke(funcProcessor, processor));
else
variable.AssignFrom(() => encapsulating.Invoke(funcProcessor));
}
public void Intercept(MethodInfo methodInfo, object attribute, GeneratedVariable processor, GeneratedVariable variable, GeneratedVariable encapsulating)
{
var defaultAttribute = attribute as IDefaultProcessEncapsulatingAttribute;
var funcProcessor = GetMethodInfo(() => defaultAttribute.Process <object>(null), methodInfo.ReturnType);
if (processor != null)
{
variable.AssignFrom(() => encapsulating.Invoke(funcProcessor, processor));
}
else
{
variable.AssignFrom(() => encapsulating.Invoke(funcProcessor));
}
}
public void Should_Be_Able_To_Add_A_Method_And_Instantiate_A_Type_And_Invoke_A_Method()
{
Type generatedType = generator.CreateType(type =>
{
type.Named("TestType8");
type.AddMethod(method =>
{
method.Named("TestMethod");
method.Returns(typeof(void));
method.CreateArgument <string>();
method.WithBody(body =>
{
GeneratedVariable variable = body.CreateVariable <Processor>();
GeneratedVariable returnValue = body.CreateVariable <string>();
variable.AssignFrom(body.Instantiate <Processor>());
returnValue.AssignFrom(() => variable.Invoke <Processor>(processor => processor.Process(null, null)));
body.Return(returnValue);
});
});
});
Assert.IsNotNull(generatedType.GetMethod("TestMethod"));
Assert.AreEqual(1, generatedType.GetMethod("TestMethod").GetParameters().Length);
generatedType.GetMethod("TestMethod").Invoke(Activator.CreateInstance(generatedType), new[] { "yay" });
}
public void Should_Be_Able_To_Add_An_Override_Method_And_Instantiate_A_Type_And_Invoke_A_Method()
{
Type generatedType = generator.CreateType(type =>
{
type.Named("TestType7");
type.InheritFrom <BaseType>();
type.OverrideMethod <BaseType>(baseType => baseType.DoSomething(null), method =>
{
method.WithBody(body =>
{
GeneratedVariable variable = body.CreateVariable <Processor>();
GeneratedVariable returnValue = body.CreateVariable <string>();
variable.AssignFrom(body.Instantiate <Processor>());
returnValue.AssignFrom(() => variable.Invoke <Processor>(processor => processor.Process(null, null)));
GeneratedVariable baseValue = body.CreateVariable <string>();
baseValue.AssignFrom(() => body.CallBase(method.Method));
body.Return(baseValue);
});
});
});
Assert.IsNotNull(generatedType.GetMethod("DoSomething"));
Assert.AreEqual(1, generatedType.GetMethod("DoSomething").GetParameters().Length);
Assert.AreEqual("yay", generatedType.GetMethod("DoSomething").Invoke(Activator.CreateInstance(generatedType), new[] { "yay" }));
}
private GeneratedVariable GenerateEncapsulatedCalls(MethodInfo methodInfo, MethodBodyContext body, GeneratedVariable serviceLocator, GeneratedField field)
{
var attributes = methodInfo.GetCustomAttributes(typeof(IProcessEncapsulatingAttribute), true);
GeneratedVariable variable = null;
if (attributes.Length == 0)
{
if (methodInfo.ReturnType == typeof(void))
{
body.CallBase(methodInfo);
}
else
{
variable = body.CreateVariable(methodInfo.ReturnType);
variable.AssignFrom(() => body.CallBase(methodInfo));
}
return(variable);
}
var encapsulating = body.CreateVariable <IProcessEncapsulatingAttribute>();
if (useServiceLocator)
{
encapsulating.AssignFrom(() => serviceLocator.Invoke(typeof(Microsoft.Practices.ServiceLocation.IServiceLocator).GetMethod("GetInstance", new Type[0]).MakeGenericMethod(attributes[0].GetType())));
}
else
{
encapsulating.AssignFrom(body.Instantiate(attributes[0].GetType()));
}
MethodInfo target = null;
var lambdaVariable = body.CreateLambda(lambda =>
{
target = lambda.Target(methodInfo);
RecursivelyGenerateCalls(attributes, 1, lambda, methodInfo, field);
});
var func = lambdaVariable.CreateFunc(target);
if (methodInfo.ReturnType != typeof(void))
{
variable = body.CreateVariable(methodInfo.ReturnType);
new DefaultProcessEncapsulatingInterceptionStrategy().Intercept(methodInfo, attributes[0], func, variable, encapsulating);
}
else
{
new DefaultProcessEncapsulatingActionInterceptionStrategy().Intercept(methodInfo, attributes[0], func, null, encapsulating);
}
return(variable);
}
private void ProxyMethods(BaseTypeGenerationContext type, Type typeToProxy, GeneratedField field)
{
var methods = typeToProxy.GetMethods(BindingFlags.Public | BindingFlags.Instance);
for (int i = 0; i < methods.Length; i++)
{
var methodInfo = methods[i];
if (methodInfo.IsVirtual && methodInfo.GetBaseDefinition().DeclaringType != typeof(object))
{
type.OverrideMethod(methodInfo, method => method.WithBody(body =>
{
if (methodInfo.GetCustomAttributes(typeof(IAopAttribute), true).Length == 0)
{
body.CallBase(methodInfo);
return;
}
GeneratedVariable locator = null;
if (useServiceLocator)
{
locator = body.CreateVariable <Microsoft.Practices.ServiceLocation.IServiceLocator>();
locator.AssignFrom(field);
}
GeneratePreProcessors(body, methodInfo, locator);
var returnValue = GenerateEncapsulatedCalls(methodInfo, body, locator, field);
GeneratePostProcessors(body, methodInfo, locator);
if (returnValue != null)
{
body.Return(returnValue);
}
}));
}
}
}