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.NET

Source code for Dotnet code generation overview by example

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

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

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