Forem: Szymon Hałucha

Fast string case transformation for the C#

Szymon Hałucha — Thu, 23 May 2024 06:25:43 +0000

Recently, I needed for my source generator a simple package that converts names from PascalCase to camelCase and vice versa. The available packages were not very optimal in terms of allocated memory, so I wrote my own, here are examples of usage along with a performance comparison.

GitHub: https://github.com/SzymonHalucha/Minerals.StringCases
NugGet: https://www.nuget.org/packages/Minerals.StringCases/

using Minerals.StringCases;

string sampleText = "  _ example Variable - - Name   321";

string pascalCase = sampleText.ToPascalCase();
// ExampleVariableName321

string camelCase = sampleText.ToCamelCase();
// exampleVariableName321

string underscoreCamelCase = sampleText.ToUnderscoreCamelCase();
// _exampleVariableName321

string kebabCase = sampleText.ToKebabCase();
// example-variable-name-321

string snakeCase = sampleText.ToSnakeCase();
// example_variable_name_321

string macroCase = sampleText.ToMacroCase();
// EXAMPLE_VARIABLE_NAME_321

string trainCase = sampleText.ToTrainCase();
// Example-Variable-Name-321

string titleCase = sampleText.ToTitleCase();
// Example Variable Name 321

Here is a comparison of the speed and amount of memory allocation with the most popular NuGet package similar to Minerals.StringCases version 0.1.0 - CaseExtesions version 1.1.0.

String used to perform the comparison:

string sampleText = "  _ example Variable - - Name   321";

Results

BenchmarkDotNet v0.13.12, Windows 10 (10.0.19045.4291/22H2/2022Update)
AMD Ryzen 5 2600, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.204
  [Host]     : .NET 8.0.4 (8.0.424.16909), X64 RyuJIT AVX2
  Job-LXTTHC : .NET 8.0.4 (8.0.424.16909), X64 RyuJIT AVX2

Method	Mean	Error	StdDev	Gen0	Allocated
CamelCase_Minerals_StringCases	153.0 ns	1.32 ns	1.03 ns	0.0343	144 B
PascalCase_Minerals_StringCases	159.2 ns	2.11 ns	1.98 ns	0.0343	144 B
SnakeCase_Minerals_StringCases	187.9 ns	1.12 ns	1.00 ns	0.0362	152 B
KebabCase_Minerals_StringCases	202.1 ns	1.94 ns	1.82 ns	0.0362	152 B
TrainCase_Minerals_StringCases	213.2 ns	1.22 ns	1.08 ns	0.0362	152 B
-	-	-	-	-	-
PascalCase_CaseExtensions	517.7 ns	4.23 ns	3.96 ns	0.0973	408 B
KebabCase_CaseExtensions	529.3 ns	3.52 ns	3.29 ns	0.0992	416 B
SnakeCase_CaseExtensions	531.2 ns	4.56 ns	4.26 ns	0.0992	416 B
TrainCase_CaseExtensions	533.5 ns	5.08 ns	4.50 ns	0.0992	416 B
CamelCase_CaseExtensions	549.7 ns	6.09 ns	5.69 ns	0.0973	408 B

Default Interface Implementation or Mix-in design pattern in the C#

Szymon Hałucha — Sat, 04 May 2024 05:52:41 +0000

In a recent project I wrote, I needed to implement the traits or mix-in design pattern. The C# language has a built-in implementation of the traits pattern hiding under the name Default Interface Implementation, but it is in the experimental stage and is not compatible with the netstandard2.0 standard. For the purpose of this project, I created a simple package implementing the mix-in pattern, which is compatible with netstandard2.0 and C# 7.3+.

How to use it?

[Minerals.AutoMixins.AddMixin(typeof(ExampleMixin1), typeof(ExampleMixin2))]
public partial class ExampleClass
{
    // Implementation here...
}

[Minerals.AutoMixins.GenerateMixin]
public class ExampleMixin1
{
    // Implementation here...
}

[Minerals.AutoMixins.GenerateMixin]
public class ExampleMixin2
{
    // Implementation here...
}

GitHub: https://github.com/SzymonHalucha/Minerals.AutoMixins
NugGet: https://www.nuget.org/packages/Minerals.AutoMixins/

Automatic interfaces generation in the C#

Szymon Hałucha — Fri, 03 May 2024 04:38:23 +0000

I created a simple package for the C# language to automatically generate an interfaces using incremental generators. Here's how to use it:

[Minerals.AutoInterfaces.GenerateInterface]
public class ExampleClass
{
    // Your implementation...
}
// or
[Minerals.AutoInterfaces.GenerateInterface("CustomInterfaceName")]
public class ExampleClass
{
    // Your implementation...
}

GitHub: https://github.com/SzymonHalucha/Minerals.AutoInterfaces
NuGet: https://www.nuget.org/packages/Minerals.AutoInterfaces/