hello world

.editorconfig

@@ -0,0 +1,21 @@
+root = true
+
+[*]
+charset = utf-8
+
+# IDE0130: 命名空间与文件夹结构不匹配
+dotnet_style_namespace_match_folder = false
+# CS4014: 由于此调用不会等待，因此在调用完成前将继续执行当前方法
+dotnet_diagnostic.CS4014.severity = none
+# CA1822: 将成员标记为 static
+dotnet_diagnostic.CA1822.severity = none
+
+# formating
+csharp_new_line_before_open_brace = none
+csharp_new_line_before_else = none
+csharp_new_line_before_catch = none
+csharp_new_line_before_finally = none
+csharp_new_line_before_members_in_object_initializers = none
+csharp_new_line_before_members_in_anonymous_types = none
+csharp_new_line_between_query_expression_clauses = none
+

Directory.Build.props

@@ -15,5 +15,6 @@
 	</PropertyGroup>
 	<PropertyGroup>
 		<BaseIntermediateOutputPath Condition="'$(MSBuildProjectName)' == 'Source'">..\Build\.intermediate\Source</BaseIntermediateOutputPath>
+		<BaseIntermediateOutputPath Condition="'$(MSBuildProjectName)' == 'Generator'">..\Build\.intermediate\Generator</BaseIntermediateOutputPath>
 	</PropertyGroup>
 </Project>

Generator/Generator.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.13.0" />
+  </ItemGroup>
+</Project>

Generator/MySourceGenerator.cs

@@ -0,0 +1,25 @@
+using System.Text;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.Text;
+
+namespace MySourceGenerator {
+	[Generator]
+	public class MySourceGenerator : ISourceGenerator {
+		public void Execute(GeneratorExecutionContext context) {
+			var sb = new StringBuilder();
+			sb.AppendLine("using System;");
+			sb.AppendLine("namespace Generated;");
+			sb.AppendLine("public static class HelloWorld {");
+			sb.AppendLine("	public static void SayHello() {");
+			sb.AppendLine("		Console.WriteLine(\"Hello World!!!\");");
+			sb.AppendLine("	}");
+			sb.AppendLine("}");
+
+			context.AddSource("HelleWorld.generated", SourceText.From(sb.ToString(), Encoding.UTF8));
+		}
+
+		public void Initialize(GeneratorInitializationContext context) {
+			System.Diagnostics.Debugger.Launch();
+		}
+	}
+}

Source/Program.cs

@@ -1,2 +1,8 @@
-// See https://aka.ms/new-console-template for more information
+using Generated;
-Console.WriteLine("Hello, World!");
+namespace Source;
+
+class Program {
+	static void Main(string[] args) {
+		HelloWorld.SayHello();
+	}
+}

Source/Source.csproj

@@ -1,4 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
+	<ItemGroup>
+		<ProjectReference Include="..\Generator\Generator.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
+	</ItemGroup>
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
 	</PropertyGroup>

codegen.sln

@@ -5,6 +5,8 @@ VisualStudioVersion = 17.0.31903.59
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Source", "Source\Source.csproj", "{F1B0542C-51A8-4953-A350-10B350394FE2}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Generator", "Generator\Generator.csproj", "{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -27,6 +29,18 @@ Global
 		{F1B0542C-51A8-4953-A350-10B350394FE2}.Release|x64.Build.0 = Release|Any CPU
 		{F1B0542C-51A8-4953-A350-10B350394FE2}.Release|x86.ActiveCfg = Release|Any CPU
 		{F1B0542C-51A8-4953-A350-10B350394FE2}.Release|x86.Build.0 = Release|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Debug|x64.Build.0 = Debug|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Debug|x86.Build.0 = Debug|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Release|x64.ActiveCfg = Release|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Release|x64.Build.0 = Release|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Release|x86.ActiveCfg = Release|Any CPU
+		{AA6A4A38-6F2C-4EB2-8A6C-122030177E32}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE