updated projects to dotnet9 + switched to incremental source generator

.github/workflows/dotnet.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 5.0.x
+        dotnet-version: 9.0.x
     - name: Restore dependencies
       run: dotnet restore
     - name: Build

.gitignore

@@ -348,3 +348,6 @@ MigrationBackup/
 
 # Ionide (cross platform F# VS Code tools) working folder
 .ionide/
+
+.idea
+.DS_Store

README.md

@@ -4,30 +4,30 @@ Source code for [Dotnet code generation overview by example](https://mtkachenko.
 
 ``` ini
 
-BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19043.1237 (21H1/May2021Update)
-Intel Core i7-8550U CPU 1.80GHz (Kaby Lake R), 1 CPU, 8 logical and 4 physical cores
-.NET SDK=5.0.401
-  [Host]     : .NET 5.0.10 (5.0.1021.41214), X64 RyuJIT
-  DefaultJob : .NET 5.0.10 (5.0.1021.41214), X64 RyuJIT
+BenchmarkDotNet v0.15.4, macOS 26.0.1 (25A362) [Darwin 25.0.0]
+Apple M4, 1 CPU, 10 logical and 10 physical cores
+.NET SDK 9.0.305
+  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
+  DefaultJob : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
 
 
 ```
 
 ## Generation of parser
-|         Method |         Mean |        Error |       StdDev |     Gen 0 |  Gen 1 |  Gen 2 | Allocated |
-|--------------- |-------------:|-------------:|-------------:|----------:|-------:|-------:|----------:|
-|         EmitIl |     22.02 μs |     0.495 μs |     1.429 μs |    1.2817 | 0.6409 | 0.0305 |      5 KB |
-| ExpressionTree |    683.68 μs |    13.609 μs |    31.268 μs |    2.9297 | 0.9766 |      - |     14 KB |
-|          Sigil |    642.63 μs |    12.305 μs |    29.243 μs |  112.3047 |      - |      - |    460 KB |
-|         Roslyn | 71,605.64 μs | 2,533.732 μs | 7,350.817 μs | 1000.0000 |      - |      - |  5,826 KB |
+| Method         | Mean          | Error       | StdDev      | Gen0      | Gen1     | Gen2     | Allocated  |
+|--------------- |--------------:|------------:|------------:|----------:|---------:|---------:|-----------:|
+| EmitIl         |      3.370 us |   0.0283 us |   0.0251 us |    0.4196 |   0.2060 |   0.0305 |    3.48 KB |
+| ExpressionTree |    131.847 us |   0.4957 us |   0.4394 us |    1.2207 |   0.4883 |        - |    11.4 KB |
+| Sigil          |    130.371 us |   1.2540 us |   1.1730 us |   52.7344 |  13.6719 |        - |   433.2 KB |
+| Roslyn         | 14,522.046 us | 263.8589 us | 246.8138 us | 1031.2500 | 343.7500 | 125.0000 | 7757.56 KB |
 
 ## Invocation of parser
-|          Method |        Mean |     Error |    StdDev | Ratio | RatioSD |  Gen 0 | Allocated |
-|---------------- |------------:|----------:|----------:|------:|--------:|-------:|----------:|
-|          EmitIl |    374.7 ns |   7.75 ns |  22.36 ns |  1.02 |    0.08 | 0.0095 |      40 B |
-|  ExpressionTree |    378.1 ns |   7.56 ns |  20.57 ns |  1.03 |    0.08 | 0.0095 |      40 B |
-|      Reflection | 13,625.0 ns | 272.60 ns | 750.81 ns | 37.29 |    2.29 | 0.7782 |   3,256 B |
-|           Sigil |    378.9 ns |   7.69 ns |  21.06 ns |  1.03 |    0.07 | 0.0095 |      40 B |
-|          Roslyn |    404.2 ns |   7.55 ns |  17.80 ns |  1.10 |    0.07 | 0.0095 |      40 B |
-| SourceGenerator |    384.4 ns |   7.79 ns |  21.46 ns |  1.05 |    0.08 | 0.0095 |      40 B |
-| ManuallyWritten |    367.8 ns |   7.36 ns |  15.68 ns |  1.00 |    0.00 | 0.0095 |      40 B |
+| Method          | Mean        | Error     | StdDev    | Ratio | RatioSD | Gen0   | Allocated | Alloc Ratio |
+|---------------- |------------:|----------:|----------:|------:|--------:|-------:|----------:|------------:|
+| EmitIl          |    75.14 ns |  0.352 ns |  0.294 ns |  1.01 |    0.00 | 0.0048 |      40 B |        1.00 |
+| ExpressionTree  |    76.12 ns |  1.306 ns |  1.222 ns |  1.02 |    0.02 | 0.0048 |      40 B |        1.00 |
+| Reflection      | 1,084.40 ns | 21.704 ns | 25.837 ns | 14.52 |    0.34 | 0.0992 |     832 B |       20.80 |
+| Sigil           |    75.51 ns |  0.319 ns |  0.249 ns |  1.01 |    0.00 | 0.0048 |      40 B |        1.00 |
+| Roslyn          |    82.45 ns |  0.117 ns |  0.110 ns |  1.10 |    0.00 | 0.0048 |      40 B |        1.00 |
+| SourceGenerator |    75.59 ns |  0.092 ns |  0.086 ns |  1.01 |    0.00 | 0.0048 |      40 B |        1.00 |
+| ManuallyWritten |    74.66 ns |  0.142 ns |  0.133 ns |  1.00 |    0.00 | 0.0048 |      40 B |        1.00 |

benchmark/Data.cs

@@ -1,17 +1,16 @@
 using System;
 
-namespace Parsers.Benchmarks
+namespace Parsers.Benchmarks;
+
+[ParserOutput]
+public class Data
 {
-    [ParserOutput]
-    public class Data
-    {
-        [ArrayIndex(0)]
-        public string Name { get; set; }
+    [ArrayIndex(0)]
+    public string Name { get; set; }
 
-        [ArrayIndex(2)]
-        public int Number { get; set; }
+    [ArrayIndex(2)]
+    public int Number { get; set; }
 
-        [ArrayIndex(1)]
-        public DateTime Birthday { get; set; }
-    }
-}
+    [ArrayIndex(1)]
+    public DateTime Birthday { get; set; }
+}

benchmark/GetParser_Benchmark.cs

@@ -1,46 +1,45 @@
 using System;
 using BenchmarkDotNet.Attributes;
 
-namespace Parsers.Benchmarks
+namespace Parsers.Benchmarks;
+
+// ReSharper disable once InconsistentNaming
+[MemoryDiagnoser]
+public class GetParser_Benchmark
 {
-    // ReSharper disable once InconsistentNaming
-    [MemoryDiagnoser]
-    public class GetParser_Benchmark
-    {
-        private EmitIlParserFactory _emitIlParserFactory;
-        private ExpressionTreeParserFactory _expressionTreeParserFactory;
-        private SigilParserFactory _sigilParserFactory;
+    private EmitIlParserFactory _emitIlParserFactory;
+    private ExpressionTreeParserFactory _expressionTreeParserFactory;
+    private SigilParserFactory _sigilParserFactory;
 
-        [GlobalSetup]
-        public void GlobalSetup()
-        {
-            _emitIlParserFactory = new EmitIlParserFactory();
-            _expressionTreeParserFactory = new ExpressionTreeParserFactory();
-            _sigilParserFactory = new SigilParserFactory();
-        }
+    [GlobalSetup]
+    public void GlobalSetup()
+    {
+        _emitIlParserFactory = new EmitIlParserFactory();
+        _expressionTreeParserFactory = new ExpressionTreeParserFactory();
+        _sigilParserFactory = new SigilParserFactory();
+    }
 
-        [Benchmark]
-        public Func<string[], Data> EmitIl()
-        {
-            return _emitIlParserFactory.GetParser<Data>();
-        }
+    [Benchmark]
+    public Func<string[], Data> EmitIl()
+    {
+        return _emitIlParserFactory.GetParser<Data>();
+    }
 
-        [Benchmark]
-        public Func<string[], Data> ExpressionTree()
-        {
-            return _expressionTreeParserFactory.GetParser<Data>();
-        }
+    [Benchmark]
+    public Func<string[], Data> ExpressionTree()
+    {
+        return _expressionTreeParserFactory.GetParser<Data>();
+    }
 
-        [Benchmark]
-        public Func<string[], Data> Sigil()
-        {
-            return _sigilParserFactory.GetParser<Data>();
-        }
+    [Benchmark]
+    public Func<string[], Data> Sigil()
+    {
+        return _sigilParserFactory.GetParser<Data>();
+    }
 
-        [Benchmark]
-        public Func<string[], Data> Roslyn()
-        {
-            return RoslynParserInitializer.CreateFactory().GetParser<Data>();
-        }
+    [Benchmark]
+    public Func<string[], Data> Roslyn()
+    {
+        return RoslynParserInitializer.CreateFactory().GetParser<Data>();
     }
-}
+}

benchmark/ParserInvocation_Benchmark.cs

@@ -1,86 +1,85 @@
 using System;
 using BenchmarkDotNet.Attributes;
 
-namespace Parsers.Benchmarks
+namespace Parsers.Benchmarks;
+
+// ReSharper disable once InconsistentNaming
+[MemoryDiagnoser]
+public class ParserInvocation_Benchmark
 {
-    // ReSharper disable once InconsistentNaming
-    [MemoryDiagnoser]
-    public class ParserInvocation_Benchmark
-    {
-        private Func<string[], Data> _emitIlParser;
-        private Func<string[], Data> _expressionTreeParser;
-        private Func<string[], Data> _reflectionParser;
-        private Func<string[], Data> _sigilParser;
-        private Func<string[], Data> _roslynParser;
-        private Func<string[], Data> _sourceGeneratorParser; 
+    private Func<string[], Data> _emitIlParser;
+    private Func<string[], Data> _expressionTreeParser;
+    private Func<string[], Data> _reflectionParser;
+    private Func<string[], Data> _sigilParser;
+    private Func<string[], Data> _roslynParser;
+    private Func<string[], Data> _sourceGeneratorParser; 
 
-        private static readonly string[] Input = { "one", "1994-11-05T13:15:30", "22" };
+    private static readonly string[] Input = { "one", "1994-11-05T13:15:30", "22" };
 
-        [GlobalSetup]
-        public void GlobalSetup()
-        {
-            _emitIlParser = new EmitIlParserFactory().GetParser<Data>();
-            _expressionTreeParser = new ExpressionTreeParserFactory().GetParser<Data>();
-            _reflectionParser = new ReflectionParserFactory().GetParser<Data>();
-            _sigilParser = new SigilParserFactory().GetParser<Data>();
-            _roslynParser = RoslynParserInitializer.CreateFactory().GetParser<Data>();
-            // ReSharper disable once PossibleNullReferenceException
-            _sourceGeneratorParser = ((IParserFactory)Activator.CreateInstance(Type.GetType("BySourceGenerator.Parser"))).GetParser<Data>();
-        }
+    [GlobalSetup]
+    public void GlobalSetup()
+    {
+        _emitIlParser = new EmitIlParserFactory().GetParser<Data>();
+        _expressionTreeParser = new ExpressionTreeParserFactory().GetParser<Data>();
+        _reflectionParser = new ReflectionParserFactory().GetParser<Data>();
+        _sigilParser = new SigilParserFactory().GetParser<Data>();
+        _roslynParser = RoslynParserInitializer.CreateFactory().GetParser<Data>();
+        // ReSharper disable once PossibleNullReferenceException
+        _sourceGeneratorParser = ((IParserFactory)Activator.CreateInstance(Type.GetType("BySourceGenerator.Parser"))).GetParser<Data>();
+    }
 
-        [Benchmark]
-        public Data EmitIl()
-        {
-            return _emitIlParser.Invoke(Input);
-        }
+    [Benchmark]
+    public Data EmitIl()
+    {
+        return _emitIlParser.Invoke(Input);
+    }
 
-        [Benchmark]
-        public Data ExpressionTree()
-        {
-            return _expressionTreeParser.Invoke(Input);
-        }
+    [Benchmark]
+    public Data ExpressionTree()
+    {
+        return _expressionTreeParser.Invoke(Input);
+    }
 
-        [Benchmark]
-        public Data Reflection()
-        {
-            return _reflectionParser.Invoke(Input);
-        }
+    [Benchmark]
+    public Data Reflection()
+    {
+        return _reflectionParser.Invoke(Input);
+    }
 
-        [Benchmark]
-        public Data Sigil()
-        {
-            return _sigilParser.Invoke(Input);
-        }
+    [Benchmark]
+    public Data Sigil()
+    {
+        return _sigilParser.Invoke(Input);
+    }
 
-        [Benchmark]
-        public Data Roslyn()
+    [Benchmark]
+    public Data Roslyn()
+    {
+        return _roslynParser.Invoke(Input);
+    }
+
+    [Benchmark]
+    public Data SourceGenerator()
+    {
+        return _sourceGeneratorParser.Invoke(Input);
+    }
+
+    [Benchmark(Baseline = true)]
+    public Data ManuallyWritten()
+    {
+        var data = new Data();
+        if (0 < Input.Length)
         {
-            return _roslynParser.Invoke(Input);
+            data.Name = Input[0];
         }
-
-        [Benchmark]
-        public Data SourceGenerator()
+        if (1 < Input.Length && DateTime.TryParse(Input[1], out var bd))
         {
-            return _sourceGeneratorParser.Invoke(Input);
+            data.Birthday = bd;
         }
-
-        [Benchmark(Baseline = true)]
-        public Data ManuallyWritten()
+        if (2 < Input.Length && int.TryParse(Input[2], out var n))
         {
-            var data = new Data();
-            if (0 < Input.Length)
-            {
-                data.Name = Input[0];
-            }
-            if (1 < Input.Length && DateTime.TryParse(Input[1], out var bd))
-            {
-                data.Birthday = bd;
-            }
-            if (2 < Input.Length && int.TryParse(Input[2], out var n))
-            {
-                data.Number = n;
-            }
-            return data;
+            data.Number = n;
         }
+        return data;
     }
-}
+}

benchmark/Parsers.Benchmarks.csproj

@@ -2,11 +2,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.13.1" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.15.4" />
   </ItemGroup>
 
   <ItemGroup>

benchmark/Program.cs

@@ -1,30 +1,17 @@
 using BenchmarkDotNet.Running;
+using Parsers.Benchmarks;
 
-namespace Parsers.Benchmarks
+var mode = args.Length == 1 ? args[0] : "all";
+switch (mode)
 {
-    class Program
-    {
-        private const string AllMode = "all";
-        private const string GetParserMode = "gp";
-        private const string ParserInvocationMode = "pi";
-
-        static void Main(string[] args)
-        {
-            var mode = args.Length == 1 ? args[0] : AllMode;
-
-            switch (mode)
-            {
-                case GetParserMode:
-                    BenchmarkRunner.Run<GetParser_Benchmark>();
-                    break;
-                case ParserInvocationMode:
-                    BenchmarkRunner.Run<ParserInvocation_Benchmark>();
-                    break;
-                default:
-                    BenchmarkRunner.Run<GetParser_Benchmark>();
-                    BenchmarkRunner.Run<ParserInvocation_Benchmark>();
-                    break;
-            }
-        }
-    }
-}
+    case "gp":
+        BenchmarkRunner.Run<GetParser_Benchmark>();
+        break;
+    case "pi":
+        BenchmarkRunner.Run<ParserInvocation_Benchmark>();
+        break;
+    default:
+        BenchmarkRunner.Run<GetParser_Benchmark>();
+        BenchmarkRunner.Run<ParserInvocation_Benchmark>();
+        break;
+}