commit df9ad345ea6c438c4a263ae0eeb06df835c0ae8e Author: Samuele Lorefice Date: Sun Sep 21 06:58:04 2025 +0200 Initial files diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..32310da --- /dev/null +++ b/.gitignore @@ -0,0 +1,526 @@ +### JetBrains template +# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider +# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 + +# User-specific stuff +.idea/**/workspace.xml +.idea/**/tasks.xml +.idea/**/usage.statistics.xml +.idea/**/dictionaries +.idea/**/shelf + +# AWS User-specific +.idea/**/aws.xml + +# Generated files +.idea/**/contentModel.xml + +# Sensitive or high-churn files +.idea/**/dataSources/ +.idea/**/dataSources.ids +.idea/**/dataSources.local.xml +.idea/**/sqlDataSources.xml +.idea/**/dynamic.xml +.idea/**/uiDesigner.xml +.idea/**/dbnavigator.xml + +# Gradle +.idea/**/gradle.xml +.idea/**/libraries + +# Gradle and Maven with auto-import +# When using Gradle or Maven with auto-import, you should exclude module files, +# since they will be recreated, and may cause churn. Uncomment if using +# auto-import. +# .idea/artifacts +# .idea/compiler.xml +# .idea/jarRepositories.xml +# .idea/modules.xml +# .idea/*.iml +# .idea/modules +# *.iml +# *.ipr + +# CMake +cmake-build-*/ + +# Mongo Explorer plugin +.idea/**/mongoSettings.xml + +# File-based project format +*.iws + +# IntelliJ +out/ + +# mpeltonen/sbt-idea plugin +.idea_modules/ + +# JIRA plugin +atlassian-ide-plugin.xml + +# Cursive Clojure plugin +.idea/replstate.xml + +# SonarLint plugin +.idea/sonarlint/ + +# Crashlytics plugin (for Android Studio and IntelliJ) +com_crashlytics_export_strings.xml +crashlytics.properties +crashlytics-build.properties +fabric.properties + +# Editor-based Rest Client +.idea/httpRequests + +# Android studio 3.1+ serialized cache file +.idea/caches/build_file_checksums.ser + +### Csharp template +## Ignore Visual Studio temporary files, build results, and +## files generated by popular Visual Studio add-ons. +## +## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore + +# User-specific files +*.rsuser +*.suo +*.user +*.userosscache +*.sln.docstates + +# User-specific files (MonoDevelop/Xamarin Studio) +*.userprefs + +# Mono auto generated files +mono_crash.* + +# Build results +[Dd]ebug/ +[Dd]ebugPublic/ +[Rr]elease/ +[Rr]eleases/ +x64/ +x86/ +[Ww][Ii][Nn]32/ +[Aa][Rr][Mm]/ +[Aa][Rr][Mm]64/ +bld/ +[Bb]in/ +[Oo]bj/ +[Ll]og/ +[Ll]ogs/ + +# Visual Studio 2015/2017 cache/options directory +.vs/ +# Uncomment if you have tasks that create the project's static files in wwwroot +#wwwroot/ + +# Visual Studio 2017 auto generated files +Generated\ Files/ + +# MSTest test Results +[Tt]est[Rr]esult*/ +[Bb]uild[Ll]og.* + +# NUnit +*.VisualState.xml +TestResult.xml +nunit-*.xml + +# Build Results of an ATL Project +[Dd]ebugPS/ +[Rr]eleasePS/ +dlldata.c + +# Benchmark Results +BenchmarkDotNet.Artifacts/ + +# .NET Core +project.lock.json +project.fragment.lock.json +artifacts/ + +# ASP.NET Scaffolding +ScaffoldingReadMe.txt + +# StyleCop +StyleCopReport.xml + +# Files built by Visual Studio +*_i.c +*_p.c +*_h.h +*.ilk +*.meta +*.obj +*.iobj +*.pch +*.pdb +*.ipdb +*.pgc +*.pgd +*.rsp +*.sbr +*.tlb +*.tli +*.tlh +*.tmp +*.tmp_proj +*_wpftmp.csproj +*.log +*.tlog +*.vspscc +*.vssscc +.builds +*.pidb +*.svclog +*.scc + +# Chutzpah Test files +_Chutzpah* + +# Visual C++ cache files +ipch/ +*.aps +*.ncb +*.opendb +*.opensdf +*.sdf +*.cachefile +*.VC.db +*.VC.VC.opendb + +# Visual Studio profiler +*.psess +*.vsp +*.vspx +*.sap + +# Visual Studio Trace Files +*.e2e + +# TFS 2012 Local Workspace +$tf/ + +# Guidance Automation Toolkit +*.gpState + +# ReSharper is a .NET coding add-in +_ReSharper*/ +*.[Rr]e[Ss]harper +*.DotSettings.user + +# TeamCity is a build add-in +_TeamCity* + +# DotCover is a Code Coverage Tool +*.dotCover + +# AxoCover is a Code Coverage Tool +.axoCover/* +!.axoCover/settings.json + +# Coverlet is a free, cross platform Code Coverage Tool +coverage*.json +coverage*.xml +coverage*.info + +# Visual Studio code coverage results +*.coverage +*.coveragexml + +# NCrunch +_NCrunch_* +.*crunch*.local.xml +nCrunchTemp_* + +# MightyMoose +*.mm.* +AutoTest.Net/ + +# Web workbench (sass) +.sass-cache/ + +# Installshield output folder +[Ee]xpress/ + +# DocProject is a documentation generator add-in +DocProject/buildhelp/ +DocProject/Help/*.HxT +DocProject/Help/*.HxC +DocProject/Help/*.hhc +DocProject/Help/*.hhk +DocProject/Help/*.hhp +DocProject/Help/Html2 +DocProject/Help/html + +# Click-Once directory +publish/ + +# Publish Web Output +*.[Pp]ublish.xml +*.azurePubxml +# Note: Comment the next line if you want to checkin your web deploy settings, +# but database connection strings (with potential passwords) will be unencrypted +*.pubxml +*.publishproj + +# Microsoft Azure Web App publish settings. Comment the next line if you want to +# checkin your Azure Web App publish settings, but sensitive information contained +# in these scripts will be unencrypted +PublishScripts/ + +# NuGet Packages +*.nupkg +# NuGet Symbol Packages +*.snupkg +# The packages folder can be ignored because of Package Restore +**/[Pp]ackages/* +# except build/, which is used as an MSBuild target. +!**/[Pp]ackages/build/ +# Uncomment if necessary however generally it will be regenerated when needed +#!**/[Pp]ackages/repositories.config +# NuGet v3's project.json files produces more ignorable files +*.nuget.props +*.nuget.targets + +# Microsoft Azure Build Output +csx/ +*.build.csdef + +# Microsoft Azure Emulator +ecf/ +rcf/ + +# Windows Store app package directories and files +AppPackages/ +BundleArtifacts/ +Package.StoreAssociation.xml +_pkginfo.txt +*.appx +*.appxbundle +*.appxupload + +# Visual Studio cache files +# files ending in .cache can be ignored +*.[Cc]ache +# but keep track of directories ending in .cache +!?*.[Cc]ache/ + +# Others +ClientBin/ +~$* +*~ +*.dbmdl +*.dbproj.schemaview +*.jfm +*.pfx +*.publishsettings +orleans.codegen.cs + +# Including strong name files can present a security risk +# (https://github.com/github/gitignore/pull/2483#issue-259490424) +#*.snk + +# Since there are multiple workflows, uncomment next line to ignore bower_components +# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622) +#bower_components/ + +# RIA/Silverlight projects +Generated_Code/ + +# Backup & report files from converting an old project file +# to a newer Visual Studio version. Backup files are not needed, +# because we have git ;-) +_UpgradeReport_Files/ +Backup*/ +UpgradeLog*.XML +UpgradeLog*.htm +ServiceFabricBackup/ +*.rptproj.bak + +# SQL Server files +*.mdf +*.ldf +*.ndf + +# Business Intelligence projects +*.rdl.data +*.bim.layout +*.bim_*.settings +*.rptproj.rsuser +*- [Bb]ackup.rdl +*- [Bb]ackup ([0-9]).rdl +*- [Bb]ackup ([0-9][0-9]).rdl + +# Microsoft Fakes +FakesAssemblies/ + +# GhostDoc plugin setting file +*.GhostDoc.xml + +# Node.js Tools for Visual Studio +.ntvs_analysis.dat +node_modules/ + +# Visual Studio 6 build log +*.plg + +# Visual Studio 6 workspace options file +*.opt + +# Visual Studio 6 auto-generated workspace file (contains which files were open etc.) +*.vbw + +# Visual Studio 6 auto-generated project file (contains which files were open etc.) +*.vbp + +# Visual Studio 6 workspace and project file (working project files containing files to include in project) +*.dsw +*.dsp + +# Visual Studio 6 technical files + +# Visual Studio LightSwitch build output +**/*.HTMLClient/GeneratedArtifacts +**/*.DesktopClient/GeneratedArtifacts +**/*.DesktopClient/ModelManifest.xml +**/*.Server/GeneratedArtifacts +**/*.Server/ModelManifest.xml +_Pvt_Extensions + +# Paket dependency manager +.paket/paket.exe +paket-files/ + +# FAKE - F# Make +.fake/ + +# CodeRush personal settings +.cr/personal + +# Python Tools for Visual Studio (PTVS) +__pycache__/ +*.pyc + +# Cake - Uncomment if you are using it +# tools/** +# !tools/packages.config + +# Tabs Studio +*.tss + +# Telerik's JustMock configuration file +*.jmconfig + +# BizTalk build output +*.btp.cs +*.btm.cs +*.odx.cs +*.xsd.cs + +# OpenCover UI analysis results +OpenCover/ + +# Azure Stream Analytics local run output +ASALocalRun/ + +# MSBuild Binary and Structured Log +*.binlog + +# NVidia Nsight GPU debugger configuration file +*.nvuser + +# MFractors (Xamarin productivity tool) working folder +.mfractor/ + +# Local History for Visual Studio +.localhistory/ + +# Visual Studio History (VSHistory) files +.vshistory/ + +# BeatPulse healthcheck temp database +healthchecksdb + +# Backup folder for Package Reference Convert tool in Visual Studio 2017 +MigrationBackup/ + +# Ionide (cross platform F# VS Code tools) working folder +.ionide/ + +# Fody - auto-generated XML schema +FodyWeavers.xsd + +# VS Code files for those working on multiple tools +.vscode/* +!.vscode/settings.json +!.vscode/tasks.json +!.vscode/launch.json +!.vscode/extensions.json +*.code-workspace + +# Local History for Visual Studio Code +.history/ + +# Windows Installer files from build outputs +*.cab +*.msi +*.msix +*.msm +*.msp + +# JetBrains Rider +*.sln.iml + +### Rider template +# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider +# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 + +# User-specific stuff + +# AWS User-specific + +# Generated files + +# Sensitive or high-churn files + +# Gradle + +# Gradle and Maven with auto-import +# When using Gradle or Maven with auto-import, you should exclude module files, +# since they will be recreated, and may cause churn. Uncomment if using +# auto-import. +# .idea/artifacts +# .idea/compiler.xml +# .idea/jarRepositories.xml +# .idea/modules.xml +# .idea/*.iml +# .idea/modules +# *.iml +# *.ipr + +# CMake + +# Mongo Explorer plugin + +# File-based project format + +# IntelliJ + +# mpeltonen/sbt-idea plugin + +# JIRA plugin + +# Cursive Clojure plugin + +# SonarLint plugin + +# Crashlytics plugin (for Android Studio and IntelliJ) + +# Editor-based Rest Client + +# Android studio 3.1+ serialized cache file + diff --git a/.idea/.idea.QuickDI/.idea/.gitignore b/.idea/.idea.QuickDI/.idea/.gitignore new file mode 100644 index 0000000..75bd31e --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/.gitignore @@ -0,0 +1,13 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Rider ignored files +/.idea.QuickDI.iml +/contentModel.xml +/projectSettingsUpdater.xml +/modules.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/.idea/.idea.QuickDI/.idea/copilot.data.migration.agent.xml b/.idea/.idea.QuickDI/.idea/copilot.data.migration.agent.xml new file mode 100644 index 0000000..4ea72a9 --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/copilot.data.migration.agent.xml @@ -0,0 +1,6 @@ + + + + + \ No newline at end of file diff --git a/.idea/.idea.QuickDI/.idea/copilot.data.migration.ask.xml b/.idea/.idea.QuickDI/.idea/copilot.data.migration.ask.xml new file mode 100644 index 0000000..7ef04e2 --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/copilot.data.migration.ask.xml @@ -0,0 +1,6 @@ + + + + + \ No newline at end of file diff --git a/.idea/.idea.QuickDI/.idea/copilot.data.migration.ask2agent.xml b/.idea/.idea.QuickDI/.idea/copilot.data.migration.ask2agent.xml new file mode 100644 index 0000000..1f2ea11 --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/copilot.data.migration.ask2agent.xml @@ -0,0 +1,6 @@ + + + + + \ No newline at end of file diff --git a/.idea/.idea.QuickDI/.idea/copilot.data.migration.edit.xml b/.idea/.idea.QuickDI/.idea/copilot.data.migration.edit.xml new file mode 100644 index 0000000..8648f94 --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/copilot.data.migration.edit.xml @@ -0,0 +1,6 @@ + + + + + \ No newline at end of file diff --git a/.idea/.idea.QuickDI/.idea/encodings.xml b/.idea/.idea.QuickDI/.idea/encodings.xml new file mode 100644 index 0000000..df87cf9 --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/encodings.xml @@ -0,0 +1,4 @@ + + + + \ No newline at end of file diff --git a/.idea/.idea.QuickDI/.idea/indexLayout.xml b/.idea/.idea.QuickDI/.idea/indexLayout.xml new file mode 100644 index 0000000..7b08163 --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/indexLayout.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/.idea.QuickDI/.idea/vcs.xml b/.idea/.idea.QuickDI/.idea/vcs.xml new file mode 100644 index 0000000..94a25f7 --- /dev/null +++ b/.idea/.idea.QuickDI/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/DISandbox/DISandbox.csproj b/DISandbox/DISandbox.csproj new file mode 100644 index 0000000..c9a8e2c --- /dev/null +++ b/DISandbox/DISandbox.csproj @@ -0,0 +1,14 @@ + + + + Exe + net9.0 + enable + enable + + + + + + + diff --git a/DISandbox/Program.cs b/DISandbox/Program.cs new file mode 100644 index 0000000..9974056 --- /dev/null +++ b/DISandbox/Program.cs @@ -0,0 +1,44 @@ +using QuickDI; + +namespace DISandbox; + +interface IService { + public void Log(string message); +} + +class Service : IService { + public void Log(string message) { + Console.WriteLine($"[Service] {message}"); + } +} + +interface IOtherService { + public Guid Id { get; } + + public void ShowId() => Console.WriteLine($"[OtherService] ID: {Id}"); +} + +class GuidService : IOtherService { + public Guid Id { get; } = Guid.NewGuid(); +} + +class GuidDependantService(IService logService, IOtherService guidService) { + public void LogWithId(string message) { + logService.Log($"[GuidDependantService] {message} (ID: {guidService.Id})"); + } +} + +static class Program { + static void Main(string[] args) { + var container = new ServiceContainer() + .AddSingleton() + .AddTransient() + .AddTransient(); + + var service = container.GetService(); + service.Log("Hello, Dependency Injection!"); + container.GetService().ShowId(); + container.GetService().LogWithId("Hello, sent from the dependency."); + container.GetService().Log("Goodbye, Dependency Injection!"); + } +} \ No newline at end of file diff --git a/QuickDI.sln b/QuickDI.sln new file mode 100644 index 0000000..4fc7a4e --- /dev/null +++ b/QuickDI.sln @@ -0,0 +1,22 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "QuickDI", "QuickDI\QuickDI.csproj", "{4730ABA2-3979-4B74-A3FF-042F6C3C47D6}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DISandbox", "DISandbox\DISandbox.csproj", "{536F5490-926D-4B2A-8F07-9A7D1F8B9381}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Release|Any CPU = Release|Any CPU + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {4730ABA2-3979-4B74-A3FF-042F6C3C47D6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {4730ABA2-3979-4B74-A3FF-042F6C3C47D6}.Debug|Any CPU.Build.0 = Debug|Any CPU + {4730ABA2-3979-4B74-A3FF-042F6C3C47D6}.Release|Any CPU.ActiveCfg = Release|Any CPU + {4730ABA2-3979-4B74-A3FF-042F6C3C47D6}.Release|Any CPU.Build.0 = Release|Any CPU + {536F5490-926D-4B2A-8F07-9A7D1F8B9381}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {536F5490-926D-4B2A-8F07-9A7D1F8B9381}.Debug|Any CPU.Build.0 = Debug|Any CPU + {536F5490-926D-4B2A-8F07-9A7D1F8B9381}.Release|Any CPU.ActiveCfg = Release|Any CPU + {536F5490-926D-4B2A-8F07-9A7D1F8B9381}.Release|Any CPU.Build.0 = Release|Any CPU + EndGlobalSection +EndGlobal diff --git a/QuickDI/QuickDI.csproj b/QuickDI/QuickDI.csproj new file mode 100644 index 0000000..e0439ac --- /dev/null +++ b/QuickDI/QuickDI.csproj @@ -0,0 +1,10 @@ + + + + net9.0 + latest + enable + enable + + + diff --git a/QuickDI/ServiceContainer.cs b/QuickDI/ServiceContainer.cs new file mode 100644 index 0000000..61fe7dc --- /dev/null +++ b/QuickDI/ServiceContainer.cs @@ -0,0 +1,100 @@ +using System.Reflection; + +namespace QuickDI; + +public class ServiceContainer { + private List _descriptors = new(); + private Dictionary _singletons = new(); + + /// + /// Get all registered implementation types for a given service type. + /// + /// + /// + public List GetServices() => + _descriptors.Where(d => d.ServiceType == typeof(TServices)) + .Select(d => d.ImplementationType).ToList(); + + public ServiceContainer AddSingleton() + where TImplementation : class, TInterface { + _descriptors.Add(new ServiceDescriptor { + ServiceType = typeof(TInterface), + ImplementationType = typeof(TImplementation), + Lifetime = ServiceLifetime.Lifetime, + RequiredTypes = typeof(TImplementation).GetConstructors().Single() + .GetParameters().Select(p => p.ParameterType).ToList() + }); + return this; + } + + public ServiceContainer AddTransient() + where TImplementation : class, TInterface { + _descriptors.Add(new ServiceDescriptor { + ServiceType = typeof(TInterface), + ImplementationType = typeof(TImplementation), + Lifetime = ServiceLifetime.Transient, + RequiredTypes = typeof(TImplementation).GetConstructors().Single() + .GetParameters().Select(p => p.ParameterType).ToList() + }); + return this; + } + + // you can't call generic methods with an unknown type at compile time + // so we use reflection to call the generic GetService method with the provided type + // Basically we build the method GetService() at runtime and then call it. + // "Classic black magic sorcery" in reflection. + private object GetService(Type serviceType) { + var method = typeof(ServiceContainer) + .GetMethod(nameof(GetService))! + .MakeGenericMethod(serviceType); + return method.Invoke(this, null)!; + } + + public TInterface GetService() { + var descriptor = _descriptors.FirstOrDefault(d => d.ServiceType == typeof(TInterface)); + + if (descriptor == null) throw new Exception($"Service of type {typeof(TInterface)} not registered."); + + // Ensure all required dependencies are registered + //TODO: some services might be asking for specific implementations, not interfaces. We should check for that too. + var missing = descriptor.RequiredTypes + //filter all required types that are not in the registered descriptors + .Where(t => _descriptors.All(d => d.ServiceType != t)) + .Select(t => t.Name) + .ToList(); + + if (missing.Any()) + throw new Exception($"Cannot create service of type {typeof(TInterface)}. Missing dependencies: {string.Join(", ", missing)}"); + + // Transient: create a new instance each time + if (descriptor.Lifetime != ServiceLifetime.Lifetime) { + var service = Instantiate(descriptor); + return service; + } + + // Singleton: return existing instance + if (_singletons.TryGetValue(descriptor.ServiceType, out object? singleton)) return (TInterface)singleton; + + // or create a new one if not yet created. + var newSingleton = Instantiate(descriptor); + _singletons[descriptor.ServiceType] = newSingleton!; + return newSingleton; + } + + private TInterface Instantiate(ServiceDescriptor descriptor) { + var par = descriptor.ImplementationType + .GetConstructors().Single() + .GetParameters() + .Select(p => p.ParameterType) + .ToList(); + + object[] parameters = new object[par.Count]; + + for (int i = 0; i < par.Count; i++) + parameters[i] = GetService(par[i]); + + var service = (TInterface?)Activator.CreateInstance(descriptor.ImplementationType, parameters); + + return service ?? throw new Exception($"Could not create instance of type {descriptor.ImplementationType}"); + } +} \ No newline at end of file diff --git a/QuickDI/ServiceDescriptor.cs b/QuickDI/ServiceDescriptor.cs new file mode 100644 index 0000000..dc9d5f5 --- /dev/null +++ b/QuickDI/ServiceDescriptor.cs @@ -0,0 +1,8 @@ +namespace QuickDI; + +public class ServiceDescriptor { + public required Type ServiceType { get; set; } + public required Type ImplementationType { get; set; } + public required ServiceLifetime Lifetime { get; set; } + public List RequiredTypes { get; set; } = new(); +} \ No newline at end of file diff --git a/QuickDI/ServiceLifetime.cs b/QuickDI/ServiceLifetime.cs new file mode 100644 index 0000000..08599a9 --- /dev/null +++ b/QuickDI/ServiceLifetime.cs @@ -0,0 +1,6 @@ +namespace QuickDI; + +public enum ServiceLifetime { + Lifetime, + Transient +} \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..e0700d6 --- /dev/null +++ b/README.md @@ -0,0 +1,3 @@ +# Quick DI +_Extremely tiny dependency injection C# library_ + diff --git a/global.json b/global.json new file mode 100644 index 0000000..93681ff --- /dev/null +++ b/global.json @@ -0,0 +1,7 @@ +{ + "sdk": { + "version": "9.0.0", + "rollForward": "latestMinor", + "allowPrerelease": false + } +} \ No newline at end of file