file-based app

Author: ufcpp

Chapters/SingleFile/AllowUnsafeBlocks.cs

@@ -0,0 +1,9 @@
+#:property AllowUnsafeBlocks=true
+
+// unsafe ブロックはオプションをつけないと使えない構文。
+unsafe
+{
+    int n = 1;
+    int* pn = &n;
+    Console.WriteLine($"{(nint)pn:x}");
+}

Chapters/SingleFile/AspNet.cs

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+#:sdk Microsoft.NET.Sdk.Web
+
+var app = WebApplication.CreateBuilder(args).Build();
+app.MapGet("/", () => "Hello World!");
+app.Run();

Chapters/SingleFile/Cat.cs

@@ -0,0 +1 @@
+Console.WriteLine("🐈");

Chapters/SingleFile/Csproj/Csproj.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <InvariantGlobalization>true</InvariantGlobalization>
+  </PropertyGroup>
+
+</Project>

Chapters/SingleFile/Csproj/Program.cs

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+Console.WriteLine(new DateTime(2000, 1, 2, 3, 4, 5));

Chapters/SingleFile/InvariantGlobalization.cs

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+#:property InvariantGlobalization=true
+Console.WriteLine(new DateTime(2000, 1, 2, 3, 4, 5));

Chapters/SingleFile/Lib/Lib.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Chapters/SingleFile/Lib/Program.cs

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+namespace Lib;
+
+public class Class1
+{
+    public static string Name => "Lib.Class1";
+}

Chapters/SingleFile/PackageReference.cs

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+#:package Microsoft.CodeAnalysis.CSharp@4.14.0
+
+using Microsoft.CodeAnalysis.CSharp;
+
+var tree = CSharpSyntaxTree.ParseText("class Class1;");
+var root = await tree.GetRootAsync();
+Console.WriteLine(root.GetFirstToken().Text);

Chapters/SingleFile/ProjectReference.cs

@@ -0,0 +1,2 @@
+#:project Lib/Lib.csproj
+Console.WriteLine(Lib.Class1.Name);