Restructured the project structure back to the way it was, there's no reasonable way to split the modules

src/NadekoBot.Generators/Cloneable/CloneableGenerator.cs

@@ -0,0 +1,258 @@
+// Code temporarily yeeted from
+// https://github.com/mostmand/Cloneable/blob/master/Cloneable/CloneableGenerator.cs
+// because of NRT issue
+#nullable enable
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Text;
+using System.Text;
+
+namespace Cloneable
+{
+    [Generator]
+    public class CloneableGenerator : ISourceGenerator
+    {
+        private const string PREVENT_DEEP_COPY_KEY_STRING = "PreventDeepCopy";
+        private const string EXPLICIT_DECLARATION_KEY_STRING = "ExplicitDeclaration";
+
+        private const string CLONEABLE_NAMESPACE = "Cloneable";
+        private const string CLONEABLE_ATTRIBUTE_STRING = "CloneableAttribute";
+        private const string CLONE_ATTRIBUTE_STRING = "CloneAttribute";
+        private const string IGNORE_CLONE_ATTRIBUTE_STRING = "IgnoreCloneAttribute";
+
+        private const string CLONEABLE_ATTRIBUTE_TEXT = $$"""
+            // <AutoGenerated/>
+            using System;
+            
+            namespace {{CLONEABLE_NAMESPACE}}
+            {
+                [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct, Inherited = true, AllowMultiple = false)]
+                internal sealed class {{CLONEABLE_ATTRIBUTE_STRING}} : Attribute
+                {
+                    public {{CLONEABLE_ATTRIBUTE_STRING}}()
+                    {
+                    }
+            
+                    public bool {{EXPLICIT_DECLARATION_KEY_STRING}} { get; set; }
+                }
+            }
+
+            """;
+
+        private const string CLONE_PROPERTY_ATTRIBUTE_TEXT = $$"""
+            // <AutoGenerated/>
+            using System;
+            
+            namespace {{CLONEABLE_NAMESPACE}}
+            {
+                [AttributeUsage(AttributeTargets.Property, Inherited = true, AllowMultiple = false)]
+                internal sealed class {{CLONE_ATTRIBUTE_STRING}} : Attribute
+                {
+                    public {{CLONE_ATTRIBUTE_STRING}}()
+                    {
+                    }
+            
+                    public bool {{PREVENT_DEEP_COPY_KEY_STRING}} { get; set; }
+                }
+            }
+
+            """;
+
+        private const string IGNORE_CLONE_PROPERTY_ATTRIBUTE_TEXT = $$"""
+            // <AutoGenerated/>
+            using System;
+            
+            namespace {{CLONEABLE_NAMESPACE}}
+            {
+                [AttributeUsage(AttributeTargets.Property, Inherited = true, AllowMultiple = false)]
+                internal sealed class {{IGNORE_CLONE_ATTRIBUTE_STRING}} : Attribute
+                {
+                    public {{IGNORE_CLONE_ATTRIBUTE_STRING}}()
+                    {
+                    }
+                }
+            }
+
+            """;
+
+        private INamedTypeSymbol? _cloneableAttribute;
+        private INamedTypeSymbol? _ignoreCloneAttribute;
+        private INamedTypeSymbol? _cloneAttribute;
+
+        public void Initialize(GeneratorInitializationContext context)
+            => context.RegisterForSyntaxNotifications(() => new SyntaxReceiver());
+
+        public void Execute(GeneratorExecutionContext context)
+        {
+            InjectCloneableAttributes(context);
+            GenerateCloneMethods(context);
+        }
+
+        private void GenerateCloneMethods(GeneratorExecutionContext context)
+        {
+            if (context.SyntaxReceiver is not SyntaxReceiver receiver)
+                return;
+
+            Compilation compilation = GetCompilation(context);
+
+            InitAttributes(compilation);
+
+            var classSymbols = GetClassSymbols(compilation, receiver);
+            foreach (var classSymbol in classSymbols)
+            {
+                if (!classSymbol.TryGetAttribute(_cloneableAttribute!, out var attributes))
+                    continue;
+
+                var attribute = attributes.Single();
+                var isExplicit = (bool?)attribute.NamedArguments.FirstOrDefault(e => e.Key.Equals(EXPLICIT_DECLARATION_KEY_STRING)).Value.Value ?? false;
+                context.AddSource($"{classSymbol.Name}_cloneable.g.cs", SourceText.From(CreateCloneableCode(classSymbol, isExplicit), Encoding.UTF8));
+            }
+        }
+
+        private void InitAttributes(Compilation compilation)
+        {
+            _cloneableAttribute = compilation.GetTypeByMetadataName($"{CLONEABLE_NAMESPACE}.{CLONEABLE_ATTRIBUTE_STRING}")!;
+            _cloneAttribute = compilation.GetTypeByMetadataName($"{CLONEABLE_NAMESPACE}.{CLONE_ATTRIBUTE_STRING}")!;
+            _ignoreCloneAttribute = compilation.GetTypeByMetadataName($"{CLONEABLE_NAMESPACE}.{IGNORE_CLONE_ATTRIBUTE_STRING}")!;
+        }
+
+        private static Compilation GetCompilation(GeneratorExecutionContext context)
+        {
+            var options = context.Compilation.SyntaxTrees.First().Options as CSharpParseOptions;
+
+            var compilation = context.Compilation.AddSyntaxTrees(CSharpSyntaxTree.ParseText(SourceText.From(CLONEABLE_ATTRIBUTE_TEXT, Encoding.UTF8), options)).
+                AddSyntaxTrees(CSharpSyntaxTree.ParseText(SourceText.From(CLONE_PROPERTY_ATTRIBUTE_TEXT, Encoding.UTF8), options)).
+                AddSyntaxTrees(CSharpSyntaxTree.ParseText(SourceText.From(IGNORE_CLONE_PROPERTY_ATTRIBUTE_TEXT, Encoding.UTF8), options));
+            return compilation;
+        }
+
+        private string CreateCloneableCode(INamedTypeSymbol classSymbol, bool isExplicit)
+        {
+            string namespaceName = classSymbol.ContainingNamespace.ToDisplayString();
+            var fieldAssignmentsCode = GenerateFieldAssignmentsCode(classSymbol, isExplicit).ToList();
+            var fieldAssignmentsCodeSafe = fieldAssignmentsCode.Select(x =>
+            {
+                if (x.isCloneable)
+                    return x.line + "Safe(referenceChain)";
+                return x.line;
+            });
+            var fieldAssignmentsCodeFast = fieldAssignmentsCode.Select(x =>
+            {
+                if (x.isCloneable)
+                    return x.line + "()";
+                return x.line;
+            });
+
+            return $@"using System.Collections.Generic;
+
+namespace {namespaceName}
+{{
+    {GetAccessModifier(classSymbol)} partial class {classSymbol.Name}
+    {{
+        /// <summary>
+        /// Creates a copy of {classSymbol.Name} with NO circular reference checking. This method should be used if performance matters.
+        /// 
+        /// <exception cref=""StackOverflowException"">Will occur on any object that has circular references in the hierarchy.</exception>
+        /// </summary>
+        public {classSymbol.Name} Clone()
+        {{
+            return new {classSymbol.Name}
+            {{
+{string.Join(",\n", fieldAssignmentsCodeFast)}
+            }};
+        }}
+
+        /// <summary>
+        /// Creates a copy of {classSymbol.Name} with circular reference checking. If a circular reference was detected, only a reference of the leaf object is passed instead of cloning it.
+        /// </summary>
+        /// <param name=""referenceChain"">Should only be provided if specific objects should not be cloned but passed by reference instead.</param>
+        public {classSymbol.Name} CloneSafe(Stack<object> referenceChain = null)
+        {{
+            if(referenceChain?.Contains(this) == true) 
+                return this;
+            referenceChain ??= new Stack<object>();
+            referenceChain.Push(this);
+            var result = new {classSymbol.Name}
+            {{
+{string.Join($",\n", fieldAssignmentsCodeSafe)}
+            }};
+            referenceChain.Pop();
+            return result;
+        }}
+    }}
+}}";
+        }
+
+        private IEnumerable<(string line, bool isCloneable)> GenerateFieldAssignmentsCode(INamedTypeSymbol classSymbol, bool isExplicit )
+        {
+            var fieldNames = GetCloneableProperties(classSymbol, isExplicit);
+
+            var fieldAssignments = fieldNames.Select(field => IsFieldCloneable(field, classSymbol))
+                .OrderBy(x => x.isCloneable)
+                .Select(x => (GenerateAssignmentCode(x.item.Name, x.isCloneable), x.isCloneable));
+            return fieldAssignments;
+        }
+
+        private string GenerateAssignmentCode(string name, bool isCloneable)
+        {
+            if (isCloneable)
+            {
+                return $@"                {name} = this.{name}?.Clone";
+            }
+
+            return $@"                {name} = this.{name}";
+        }
+
+        private (IPropertySymbol item, bool isCloneable) IsFieldCloneable(IPropertySymbol x, INamedTypeSymbol classSymbol)
+        {
+            if (SymbolEqualityComparer.Default.Equals(x.Type, classSymbol))
+            {
+                return (x, false);
+            }
+
+            if (!x.Type.TryGetAttribute(_cloneableAttribute!, out var attributes))
+            {
+                return (x, false);
+            }
+
+            var preventDeepCopy = (bool?)attributes.Single().NamedArguments.FirstOrDefault(e => e.Key.Equals(PREVENT_DEEP_COPY_KEY_STRING)).Value.Value ?? false;
+            return (item: x, !preventDeepCopy);
+        }
+
+        private string GetAccessModifier(INamedTypeSymbol classSymbol)
+            => classSymbol.DeclaredAccessibility.ToString().ToLowerInvariant();
+
+        private IEnumerable<IPropertySymbol> GetCloneableProperties(ITypeSymbol classSymbol, bool isExplicit)
+        {
+            var targetSymbolMembers = classSymbol.GetMembers().OfType<IPropertySymbol>()
+                .Where(x => x.SetMethod is not null &&
+                            x.CanBeReferencedByName);
+            if (isExplicit)
+            {
+                return targetSymbolMembers.Where(x => x.HasAttribute(_cloneAttribute!));
+            }
+            else
+            {
+                return targetSymbolMembers.Where(x => !x.HasAttribute(_ignoreCloneAttribute!));
+            }
+        }
+
+        private static IEnumerable<INamedTypeSymbol> GetClassSymbols(Compilation compilation, SyntaxReceiver receiver)
+            => receiver.CandidateClasses.Select(clazz => GetClassSymbol(compilation, clazz));
+
+        private static INamedTypeSymbol GetClassSymbol(Compilation compilation, ClassDeclarationSyntax clazz)
+        {
+            var model = compilation.GetSemanticModel(clazz.SyntaxTree);
+            var classSymbol = model.GetDeclaredSymbol(clazz)!;
+            return classSymbol;
+        }
+
+        private static void InjectCloneableAttributes(GeneratorExecutionContext context)
+        {
+            context.AddSource(CLONEABLE_ATTRIBUTE_STRING, SourceText.From(CLONEABLE_ATTRIBUTE_TEXT, Encoding.UTF8));
+            context.AddSource(CLONE_ATTRIBUTE_STRING, SourceText.From(CLONE_PROPERTY_ATTRIBUTE_TEXT, Encoding.UTF8));
+            context.AddSource(IGNORE_CLONE_ATTRIBUTE_STRING, SourceText.From(IGNORE_CLONE_PROPERTY_ATTRIBUTE_TEXT, Encoding.UTF8));
+        }
+    }
+}

src/NadekoBot.Generators/Cloneable/SymbolExtensions.cs

@@ -0,0 +1,23 @@
+// Code temporarily yeeted from
+// https://github.com/mostmand/Cloneable/blob/master/Cloneable/CloneableGenerator.cs
+// because of NRT issue
+
+using Microsoft.CodeAnalysis;
+
+namespace Cloneable
+{
+    internal static class SymbolExtensions
+    {
+        public static bool TryGetAttribute(this ISymbol symbol, INamedTypeSymbol attributeType,
+            out IEnumerable<AttributeData> attributes)
+        {
+            attributes = symbol.GetAttributes()
+                .Where(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, attributeType));
+            return attributes.Any();
+        }
+
+        public static bool HasAttribute(this ISymbol symbol, INamedTypeSymbol attributeType)
+            => symbol.GetAttributes()
+                .Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, attributeType));
+    }
+}

src/NadekoBot.Generators/Cloneable/SyntaxReceiver.cs

@@ -0,0 +1,27 @@
+// Code temporarily yeeted from
+// https://github.com/mostmand/Cloneable/blob/master/Cloneable/CloneableGenerator.cs
+// because of NRT issue
+
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+
+namespace Cloneable
+{
+    internal class SyntaxReceiver : ISyntaxReceiver
+    {
+        public IList<ClassDeclarationSyntax> CandidateClasses { get; } = new List<ClassDeclarationSyntax>();
+
+        /// <summary>
+        /// Called for every syntax node in the compilation, we can inspect the nodes and save any information useful for generation
+        /// </summary>
+        public void OnVisitSyntaxNode(SyntaxNode syntaxNode)
+        {
+            // any field with at least one attribute is a candidate for being cloneable
+            if (syntaxNode is ClassDeclarationSyntax classDeclarationSyntax &&
+                classDeclarationSyntax.AttributeLists.Count > 0)
+            {
+                CandidateClasses.Add(classDeclarationSyntax);
+            }
+        }
+    }
+}

src/NadekoBot.Generators/LocalizedStringsGenerator.cs

@@ -0,0 +1,140 @@
+#nullable enable
+using System.CodeDom.Compiler;
+using System.Diagnostics;
+using System.Text.RegularExpressions;
+using Microsoft.CodeAnalysis;
+using Newtonsoft.Json;
+
+namespace NadekoBot.Generators
+{
+    internal readonly struct TranslationPair
+    {
+        public string Name { get; }
+        public string Value { get; }
+
+        public TranslationPair(string name, string value)
+        {
+            Name = name;
+            Value = value;
+        }
+    }
+
+    [Generator]
+    public class LocalizedStringsGenerator : ISourceGenerator
+    {
+//         private const string LOC_STR_SOURCE = @"namespace NadekoBot
+// {
+//     public readonly struct LocStr
+//     {
+//         public readonly string Key;
+//         public readonly object[] Params;
+//         
+//         public LocStr(string key, params object[] data)
+//         {
+//             Key = key;
+//             Params = data;
+//         }
+//     }
+// }";
+
+        public void Initialize(GeneratorInitializationContext context)
+        {
+        }
+
+        public void Execute(GeneratorExecutionContext context)
+        {
+            var file = context.AdditionalFiles.First(x => x.Path.EndsWith("responses.en-US.json"));
+
+            var fields = GetFields(file.GetText()?.ToString());
+
+            using (var stringWriter = new StringWriter())
+            using (var sw = new IndentedTextWriter(stringWriter))
+            {
+                sw.WriteLine("#pragma warning disable CS8981");
+                sw.WriteLine("namespace NadekoBot;");
+                sw.WriteLine();
+
+                sw.WriteLine("public static class strs");
+                sw.WriteLine("{");
+                sw.Indent++;
+
+                var typedParamStrings = new List<string>(10);
+                foreach (var field in fields)
+                {
+                    var matches = Regex.Matches(field.Value, @"{(?<num>\d)[}:]");
+                    var max = 0;
+                    foreach (Match match in matches)
+                    {
+                        max = Math.Max(max, int.Parse(match.Groups["num"].Value) + 1);
+                    }
+
+                    typedParamStrings.Clear();
+                    var typeParams = new string[max];
+                    var passedParamString = string.Empty;
+                    for (var i = 0; i < max; i++)
+                    {
+                        typedParamStrings.Add($"in T{i} p{i}");
+                        passedParamString += $", p{i}";
+                        typeParams[i] = $"T{i}";
+                    }
+
+                    var sig = string.Empty;
+                    var typeParamStr = string.Empty;
+                    if (max > 0)
+                    {
+                        sig = $"({string.Join(", ", typedParamStrings)})";
+                        typeParamStr = $"<{string.Join(", ", typeParams)}>";
+                    }
+
+                    sw.WriteLine("public static LocStr {0}{1}{2} => new LocStr(\"{3}\"{4});",
+                        field.Name,
+                        typeParamStr,
+                        sig,
+                        field.Name,
+                        passedParamString);
+                }
+
+                sw.Indent--;
+                sw.WriteLine("}");
+
+
+                sw.Flush();
+                context.AddSource("strs.g.cs", stringWriter.ToString());
+            }
+
+            // context.AddSource("LocStr.g.cs", LOC_STR_SOURCE);
+        }
+
+        private List<TranslationPair> GetFields(string? dataText)
+        {
+            if (string.IsNullOrWhiteSpace(dataText))
+                return new();
+
+            Dictionary<string, string> data;
+            try
+            {
+                var output = JsonConvert.DeserializeObject<Dictionary<string, string>>(dataText!);
+                if (output is null)
+                    return new();
+
+                data = output;
+            }
+            catch
+            {
+                Debug.WriteLine("Failed parsing responses file.");
+                return new();
+            }
+
+            var list = new List<TranslationPair>();
+            foreach (var entry in data)
+            {
+                list.Add(new(
+                    entry.Key,
+                    entry.Value
+                ));
+            }
+
+            return list;
+        }
+    }
+}

src/NadekoBot.Generators/NadekoBot.Generators.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netstandard2.0</TargetFramework>
+        <LangVersion>latest</LangVersion>
+        <IncludeBuildOutput>false</IncludeBuildOutput>
+        <IsRoslynComponent>true</IsRoslynComponent>
+        <ImplicitUsings>true</ImplicitUsings>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" PrivateAssets="all" />
+        <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" PrivateAssets="all" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.3" PrivateAssets="all" GeneratePathProperty="true" />
+    </ItemGroup>
+
+    <PropertyGroup>
+        <GetTargetPathDependsOn>$(GetTargetPathDependsOn);GetDependencyTargetPaths</GetTargetPathDependsOn>
+    </PropertyGroup>
+
+    <Target Name="GetDependencyTargetPaths">
+        <ItemGroup>
+            <TargetPathWithTargetPlatformMoniker Include="$(PKGNewtonsoft_Json)\lib\netstandard2.0\Newtonsoft.Json.dll" IncludeRuntimeDependency="false" />
+        </ItemGroup>
+    </Target>
+</Project>
+

src/NadekoBot.Generators/README.md

@@ -0,0 +1,24 @@
+## Generators
+
+Project which contains source generators required for NadekoBot project
+
+---
+### 1) Localized Strings Generator
+
+    -- Why --
+    Type safe response strings access, and enforces correct usage of response strings.
+
+    -- How it works --
+    Creates a file "strs.cs" containing a class called "strs" in "NadekoBot" namespace.
+    
+    Loads "data/strings/responses.en-US.json" and creates a property or a function for each key in the responses json file based on whether the value has string format placeholders or not.
+
+    - If a value has no placeholders, it creates a property in the strs class which returns an instance of a LocStr struct containing only the key and no replacement parameters
+    
+    - If a value has placeholders, it creates a function with the same number of arguments as the number of placeholders, and passes those arguments to the LocStr instance
+
+    -- How to use --
+    1. Add a new key to responses.en-US.json "greet_me": "Hello, {0}"
+    2. You now have access to a function strs.greet_me(obj p1)
+    3. Using "GetText(strs.greet_me("Me"))" will return "Hello, Me"
+