1. {{ FodyFody code weaving made funcode weaving made fun

2. About meAbout me Tomasz PluskiewiczTomasz Pluskiewicz WrocawWrocaw MakoLab S.A.MakoLab S.A. @tpluscode@tpluscode 3. About code weavingAbout code weaving About FodyAbout Fody ExamplesExamples QuestionsQuestions AgendaAgenda 4. Generate additional code to:Generate additional code to: Add boilerplate code automaticallyAdd boilerplate code automatically Implement Aspect-Oriented ProgrammingImplement Aspect-Oriented Programming ObfuscationObfuscation Build killer APIsBuild killer APIs What is code weaving?What is code weaving? 5. Source code weavingSource code weaving Compile-time weavingCompile-time weaving Runtime weavingRuntime weaving How can I weave?How can I weave? 6. Emitting MSILEmitting MSIL Refelction.EmitRefelction.Emit Mono.CecilMono.Cecil Dynamic proxiesDynamic proxies Castle, LinFu, Unity, Impromptu InterfaceCastle, LinFu, Unity, Impromptu Interface AOPAOP PostSharp, AfterthoughtPostSharp, Afterthought RoslynRoslyn The toolsThe tools 7. Simple but less flexibileSimple but less flexibile Requires runtime reference to PostSharpRequires runtime reference to PostSharp Requires Visual Studio extensionRequires Visual Studio extension Aspects in embedded resourcesAspects in embedded resources Full functionality is not freeFull functionality is not free PostSharpPostSharp 8. IL weaving (with Cecil)IL weaving (with Cecil) ILIL isis difficultdifficult Need to update PDBsNeed to update PDBs MSBuild integrationMSBuild integration 9. Fodies are small passerine birds belonging to the genus Foudia in the weaver family Ploceidae - wikipedia/Fody 10. WeaverWeaver CodeCode 11. Many pre-built weaversMany pre-built weavers Uses Mono.CecilUses Mono.Cecil Integrates into build processIntegrates into build process Works on build serversWorks on build servers Leaves no referencesLeaves no references Well depending on the pluginWell depending on the plugin Versatile:Versatile: .NET 3.5-4.5.NET 3.5-4.5 Silverlight 4 & 5Silverlight 4 & 5 Mono, MonoTouch, MonoDroidMono, MonoTouch, MonoDroid Windows Phone 7 & 8 (also Metro)Windows Phone 7 & 8 (also Metro) Portable Class LibraryPortable Class Library FodyFody 12. Almost 70 packages on NuGetAlmost 70 packages on NuGet NullGuardNullGuard PropertyChangedPropertyChanged CosturaCostura AnotarAnotar ModuleInitModuleInit FreezableFreezable MethodDecoratorMethodDecorator InfoOfInfoOf ToStringToString Community weaversCommunity weavers 13. DemoDemo 14. Emitting IL is still required (duh!)Emitting IL is still required (duh!) However FodyHowever Fody Injects weavers to build pipelineInjects weavers to build pipeline Loads assembliesLoads assemblies Rewrites PDBsRewrites PDBs Reapplies strong nameReapplies strong name Writes to MSBuild build logWrites to MSBuild build log Custom weavingCustom weaving 15. Assembly with .Fody suffixAssembly with .Fody suffix ILMerge referencesILMerge references Pulic ModuleWeaver classPulic ModuleWeaver class Mutltiple deployment optionsMutltiple deployment options In-solutionIn-solution $(SolutionDir)/Tools NuGet packageNuGet package Learn fromLearn from existing weavers (example follows)existing weavers (example follows) Fody wikiFody wiki Writing a weaverWriting a weaver 16. DemoDemo 17. Dont use Visual Studio pluginDont use Visual Studio plugin Weaver order sometimes does matterWeaver order sometimes does matter Debugging unavailable codeDebugging unavailable code LogInfo requires detailed MSBuild outputLogInfo requires detailed MSBuild output Tools -> Projects and Solutions -> Build andTools -> Projects and Solutions -> Build and RunRun Remember to update Fody packageRemember to update Fody package GotchasGotchas 18. https://github.com/Fody/https://github.com/Fody/ https://github.com/Fody/Fody/wiki/HowToWriteAnAddinhttps://github.com/Fody/Fody/wiki/HowToWriteAnAddin https://github.com/Fody/Fody/wiki/ModuleWeaverhttps://github.com/Fody/Fody/wiki/ModuleWeaver https://github.com/Fody/Fody/wiki/DeployingAddinsAsNugetshttps://github.com/Fody/Fody/wiki/DeployingAddinsAsNugets http://www.planetgeek.ch/2013/08/31/dont-wear-woven-sweatshirts-instead-weave-your-http://www.planetgeek.ch/2013/08/31/dont-wear-woven-sweatshirts-instead-weave-your- assemblies/assemblies/ http://haacked.com/archive/2013/01/04/mitigate-the-billion-dollar-mistake-with-aspects.aspx/http://haacked.com/archive/2013/01/04/mitigate-the-billion-dollar-mistake-with-aspects.aspx/ LinksLinks 19. Questions?Questions? 20. The end wake up nowThe end wake up now