When should I use conditional compilation instead of a polyfill?

Use conditional compilation (#if) when there is a fundamental runtime behavior difference, a performance-critical path that requires specific hardware acceleration, or when no polyfill is available for a specific BCL API.

Does this skill help with TFM detection?

This skill focuses on implementation strategy; it is designed to work with the output from the dotnet-version-detection skill which handles the actual TFM resolution.

Can I use C# 12 features on .NET Standard 2.0 with this skill?

Yes, the skill provides guidance on using PolySharp to synthesize the attributes the compiler needs to enable modern features like 'required' members on older targets.

What is the benefit of a polyfill-first approach in .NET?

It allows you to use modern C# syntax and BCL APIs on older frameworks without cluttering your logic with preprocessor directives, making the code more readable and maintainable.

DotNet Multi-Targeting Strategy

Name: DotNet Multi-Targeting Strategy
Author: rudironsoni

byrudironsoni

0•

开发者工具

Optimizes .NET projects for multiple target frameworks using polyfills, conditional compilation, and API compatibility validation.

This skill provides a comprehensive framework for managing .NET libraries and applications that must support multiple Target Framework Monikers (TFMs). It advocates for a 'polyfill-first' approach, leveraging tools like PolySharp and SimonCropp/Polyfill to enable modern C# language features and BCL APIs on older runtimes without code clutter. By providing a structured decision matrix, it helps developers choose between polyfills, conditional compilation, or the adapter pattern, ensuring codebases remain maintainable while supporting both legacy frameworks and the latest .NET versions.

主要功能

01PolySharp integration for compiler-synthesized language feature stubs

02TFM-specific source file management and API compatibility validation

03SimonCropp/Polyfill guidance for backporting BCL API implementations

04Decision matrix for selecting polyfills vs. conditional compilation

050 GitHub stars

06Advanced .csproj patterns for multi-TFM project configuration

使用场景

01Backporting modern C# features like 'required' members and 'init' properties to legacy targets.

02Developing NuGet libraries that support .NET Standard 2.0 and modern .NET versions simultaneously.

03Implementing performance-optimized code paths for newer runtimes using preprocessor symbols.

主要功能

01PolySharp integration for compiler-synthesized language feature stubs

02TFM-specific source file management and API compatibility validation

03SimonCropp/Polyfill guidance for backporting BCL API implementations

04Decision matrix for selecting polyfills vs. conditional compilation

050 GitHub stars

06Advanced .csproj patterns for multi-TFM project configuration

使用场景

01Backporting modern C# features like 'required' members and 'init' properties to legacy targets.

02Developing NuGet libraries that support .NET Standard 2.0 and modern .NET versions simultaneously.

03Implementing performance-optimized code paths for newer runtimes using preprocessor symbols.