private void WeaveMethods(
TypeDefinition clazz,
IReadOnlyList <CrossCutterN.Aspect.Metadata.ICustomAttribute> classCustomAttributes,
MethodWeaver methodWeaver,
IClassWeavingStatisticsBuilder statistics)
{
foreach (var method in clazz.Methods)
{
// methods without bodies can't be injected
// property getter and setter will be handled in property phase
if (!method.HasBody || IsPropertyMethod(method))
{
continue;
}
var methodInfo = method.Convert(classCustomAttributes);
var plan = planner.MakePlan(methodInfo);
if (!plan.IsEmpty())
{
var methodStatistics = StatisticsFactory.InitializeMethodWeavingRecord(method.Name, method.FullName);
methodWeaver.Weave(method, plan, null, methodStatistics);
var methodStatisticsFinished = methodStatistics.Build();
if (methodStatisticsFinished != null)
{
statistics.AddMethodWeavingStatistics(methodStatisticsFinished);
}
}
}
}
private void WeaveProperties(
TypeDefinition clazz,
IReadOnlyList <CrossCutterN.Aspect.Metadata.ICustomAttribute> classCustomAttributes,
MethodWeaver methodWeaver,
IClassWeavingStatisticsBuilder statistics)
{
foreach (var property in clazz.Properties)
{
var propertyInfo = property.Convert(classCustomAttributes);
var plan = planner.MakePlan(propertyInfo);
if (!plan.IsEmpty())
{
var propertyStatistics = StatisticsFactory.InitializePropertyWeavingRecord(property.Name, property.FullName);
var getterPlan = plan.GetterPlan;
var getter = property.GetMethod;
if (!getterPlan.IsEmpty() && getter != null)
{
methodWeaver.Weave(getter, getterPlan, property.Name, propertyStatistics.GetterContainer);
}
var setterPlan = plan.SetterPlan;
var setter = property.SetMethod;
if (!setterPlan.IsEmpty() && setter != null)
{
methodWeaver.Weave(setter, setterPlan, property.Name, propertyStatistics.SetterContainer);
}
var propertyStatisticsFinished = propertyStatistics.Build();
if (propertyStatisticsFinished != null)
{
statistics.AddPropertyWeavingStatistics(propertyStatisticsFinished);
}
}
}
}
/// <inheritdoc/>
public IAssemblyWeavingStatistics Weave(string inputAssemblyPath, bool includeSymbol, string outputAssemblyPath, string strongNameKeyFile)
{
if (string.IsNullOrWhiteSpace(inputAssemblyPath))
{
throw new ArgumentNullException("inputAssemblyPath");
}
if (string.IsNullOrWhiteSpace(outputAssemblyPath))
{
throw new ArgumentNullException("outputAssemblyPath");
}
// Mono.Cecil implementation has issues that if we directly pass file name for input assembly,
// the assembly can't be overwritten if we give the same file name for output assembly,
// So here we directly convert input assembly file to memory stream to ensure that input assembly file handle is release when outputing.
var readerParameters = new ReaderParameters();
if (includeSymbol)
{
readerParameters.ReadSymbols = true;
readerParameters.SymbolReaderProvider = new PdbReaderProvider();
readerParameters.SymbolStream = new MemoryStream(File.ReadAllBytes(Path.ChangeExtension(inputAssemblyPath, "pdb")));
}
var assembly = AssemblyDefinition.ReadAssembly(new MemoryStream(File.ReadAllBytes(inputAssemblyPath)), readerParameters);
var assemblyStatistics = StatisticsFactory.InitializeAssemblyWeavingRecord(assembly.FullName);
try
{
foreach (var module in assembly.Modules)
{
var moduleStatistics = StatisticsFactory.InitializeModuleWeavingRecord(module.Name);
var context = WeaverFactory.InitializeMethodWeavingContext(module);
foreach (var clazz in module.GetTypes().Where(tp => tp.IsClass && (tp.HasMethods || tp.HasFields)))
{
// supporting data structure initialization.
var classStatistics = StatisticsFactory.InitializeClassWeavingRecord(clazz.Name, clazz.FullName, clazz.Namespace);
var switchHandlerBuilder = SwitchFactory.InitializeSwitchHandler(clazz, context.GetTypeReference(typeof(int)));
var classCustomAttributes = GetClassCustomAttributes(clazz);
var methodWeaver = new MethodWeaver(classCustomAttributes, context, switchHandlerBuilder);
WeaveProperties(clazz, classCustomAttributes, methodWeaver, classStatistics);
WeaveMethods(clazz, classCustomAttributes, methodWeaver, classStatistics);
WeaveSwitches(switchHandlerBuilder.Build(), clazz, context, classStatistics);
// handle statistics
var classStatisticsFinished = classStatistics.Build();
if (classStatisticsFinished.WeavedMethodPropertyCount > 0)
{
moduleStatistics.AddClassWeavingStatistics(classStatisticsFinished);
}
}
AddAssemblyReference(context, module, moduleStatistics);
// handle statistics.
var moduleStatisticsFinished = moduleStatistics.Build();
if (moduleStatisticsFinished.WeavedClassCount > 0)
{
assemblyStatistics.AddModuleWeavingStatistics(moduleStatisticsFinished);
}
}
var writerParameters = new WriterParameters();
if (includeSymbol)
{
writerParameters.WriteSymbols = true;
writerParameters.SymbolWriterProvider = new PdbWriterProvider();
}
if (!string.IsNullOrWhiteSpace(strongNameKeyFile))
{
writerParameters.StrongNameKeyPair = new StrongNameKeyPair(File.ReadAllBytes(strongNameKeyFile));
}
assembly.Write(outputAssemblyPath, writerParameters);
}
catch (Exception e)
{
assemblyStatistics.Exception = e;
}
return(assemblyStatistics.Build());
}