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transformalize.transform.csharp's Introduction

Overview

This adds C# transform to Transformalize. This plug-in ships with the Transformalize CLI.

Usage

<cfg name="Test">
   <entities>
      <add name="Test">
         <rows>
            <add text="SomethingWonderful" number="2" />
         </rows>
         <fields>
            <add name="text" />
            <add name="number" type="int" />
         </fields>
         <calculated-fields>
            <add name="csharp" t='cs(return text + " " + number;)' />
         </calculated-fields>
      </add>
   </entities>
</cfg>

This produces SomethingWonderful 2

Warning

Note: The first time this runs, it is susceptible to a known memory leak associated with compiling and running c# code within a process.

If you use this transform in a long-running process, it's recommended to set a max-memory in the root node (e.g. <cfg max-memory="500 mb" />). The Transformalize CLI honors the max memory setting, and will exit if it's exceeded.

Benchmark

BenchmarkDotNet=v0.11.4, OS=Windows 10.0.17134.407 (1803/April2018Update/Redstone4)
Intel Core i7-7700HQ CPU 2.80GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
Frequency=2742189 Hz, Resolution=364.6722 ns, Timer=TSC
  [Host]       : .NET Framework 4.7.2 (CLR 4.0.30319.42000), 32bit LegacyJIT-v4.7.3221.0
  LegacyJitX64 : .NET Framework 4.7.2 (CLR 4.0.30319.42000), 64bit LegacyJIT/clrjit-v4.7.3221.0;compatjit-v4.7.3221.0

Job=LegacyJitX64  Jit=LegacyJit  Platform=X64  
Runtime=Clr
Method Mean Error StdDev Ratio RatioSD
'7777 rows' 727.8 ms 4.662 ms 4.133 ms 1.00 0.00
'7777 rows with csharp' 750.3 ms 14.764 ms 18.131 ms 1.04 0.03

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