From f6ae9218e65a2b1fbbe7c3be99e3b9825a509fcf Mon Sep 17 00:00:00 2001
From: Andy Gocke <andy@commentout.net>
Date: Thu, 13 Feb 2025 23:27:58 -0800
Subject: [PATCH] Add Result type

---
 src/Result/Result.cs              | 21 +++++++++++++++++++++
 src/Result/StaticCs.Result.csproj | 21 +++++++++++++++++++++
 static-cs.sln                     |  7 +++++++
 3 files changed, 49 insertions(+)
 create mode 100644 src/Result/Result.cs
 create mode 100644 src/Result/StaticCs.Result.csproj

diff --git a/src/Result/Result.cs b/src/Result/Result.cs
new file mode 100644
index 0000000..dfd9706
--- /dev/null
+++ b/src/Result/Result.cs
@@ -0,0 +1,21 @@
+using System;
+
+namespace StaticCs;
+
+[Closed]
+public abstract record Result<TOk, TErr>
+{
+    private Result() { }
+
+    public sealed record Ok(TOk Value) : Result<TOk, TErr>;
+    public sealed record Err(TErr Value) : Result<TOk, TErr>;
+
+    public static implicit operator Result<TOk, TErr>(TOk success) => new Ok(success);
+    public static implicit operator Result<TOk, TErr>(TErr error) => new Err(error);
+
+    public TOk Unwrap() => this switch
+    {
+        Ok(var ok) => ok,
+        _ => throw new InvalidOperationException(),
+    };
+}
\ No newline at end of file
diff --git a/src/Result/StaticCs.Result.csproj b/src/Result/StaticCs.Result.csproj
new file mode 100644
index 0000000..68abb4d
--- /dev/null
+++ b/src/Result/StaticCs.Result.csproj
@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>net8.0</TargetFrameworks>
+    <Version>0.1.0</Version>
+    <IsPackable>true</IsPackable>
+    <PackageLicenseExpression>BSD-3-Clause</PackageLicenseExpression>
+    <RepositoryUrl>https://github.com/agocke/static-cs</RepositoryUrl>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\StaticCs\StaticCs.csproj" />
+    <Compile Include="..\StaticCs.ContentFiles\*.cs" />
+  </ItemGroup>
+
+</Project>
diff --git a/static-cs.sln b/static-cs.sln
index b071982..bed3c64 100644
--- a/static-cs.sln
+++ b/static-cs.sln
@@ -19,6 +19,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StaticCs", "src\StaticCs\St
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StaticCs.TrimmableConverter", "src\StaticCs.TrimmableConverter\StaticCs.TrimmableConverter.csproj", "{B29FFDB1-7006-42FA-9647-3101CDFB364F}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StaticCs.Result", "src\Result\StaticCs.Result.csproj", "{8FF14261-BA9C-487F-8581-3F7D978EA772}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -52,6 +54,10 @@ Global
 		{B29FFDB1-7006-42FA-9647-3101CDFB364F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B29FFDB1-7006-42FA-9647-3101CDFB364F}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B29FFDB1-7006-42FA-9647-3101CDFB364F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8FF14261-BA9C-487F-8581-3F7D978EA772}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8FF14261-BA9C-487F-8581-3F7D978EA772}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8FF14261-BA9C-487F-8581-3F7D978EA772}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8FF14261-BA9C-487F-8581-3F7D978EA772}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{44789D3C-044A-457B-9F5F-47209D0D5C21} = {E383093D-99E0-4B3D-8B3B-C960B7B7C426}
@@ -60,5 +66,6 @@ Global
 		{7FD737C0-6ED4-44E9-BC40-096BFD16DBDA} = {E9E2044F-C0D2-4270-A896-E9917D1331D0}
 		{FD238201-2E9D-4066-83BB-43D3DD49EC24} = {E383093D-99E0-4B3D-8B3B-C960B7B7C426}
 		{B29FFDB1-7006-42FA-9647-3101CDFB364F} = {E383093D-99E0-4B3D-8B3B-C960B7B7C426}
+		{8FF14261-BA9C-487F-8581-3F7D978EA772} = {E383093D-99E0-4B3D-8B3B-C960B7B7C426}
 	EndGlobalSection
 EndGlobal