Portable Class Library using F# without FSharp.Core.dll reference

Portable Class Library using F# without FSharp.Core.dll reference

It is possible to create a Portable Class Library (PCL) using F# without referencing FSharp.Core.dll. However, there are some caveats to keep in mind.

When creating a PCL in F#, the compiler references the FSharp.Core.dll assembly by default. This assembly contains the F# core library, which provides many essential features of the F# language, including core types, functions, and operators.

To create a PCL without referencing FSharp.Core.dll, you need to create a custom F# core library that contains only the features you need. Here's how you can do it:

  1. Create a new Class Library project in Visual Studio and add an F# source file to it.

  2. Define a module that contains the features you need from the F# core library. For example:

    module MyFSharpCore let rec range a b = if a > b then [] else a :: range (a + 1) b

    In this example, we're defining a range function that generates a list of integers from a to b.

  3. Build the project to create a MyFSharpCore.dll assembly.

  4. Create a new PCL project and select the target platforms you want to support.

  5. Add a reference to the MyFSharpCore.dll assembly you created earlier.

  6. Write your F# code in the PCL project using the features of MyFSharpCore module. For example:

    module MyFSharpPcl open MyFSharpCore let myList = range 1 10

    In this example, we're using the range function from the MyFSharpCore module to generate a list of integers.

  7. Build the PCL project and use it in other projects.

Note that when you create a custom F# core library, you may not have access to all the features of the F# language or standard library. You may also need to write some low-level code in C# to handle platform-specific features or to interface with other libraries.

Examples

  1. "Portable Class Library F# no FSharp.Core.dll"

    • Description: Learn how to create a Portable Class Library (PCL) in F# without referencing FSharp.Core.dll, ensuring cross-platform compatibility. This approach allows for a more lightweight and versatile codebase.
    // F# Portable Class Library without FSharp.Core.dll reference namespace MyPortableLibrary type MyClass() = member this.AddNumbers(a: int, b: int) = a + b

  2. "F# PCL cross-platform development"

    • Description: Explore F# Portable Class Library development for cross-platform applications without the dependency on FSharp.Core.dll. Achieve code reusability across various platforms seamlessly.
    // Cross-platform F# PCL code module MyPortableModule let multiplyNumbers(x: int, y: int) = x * y

  3. "F# PCL best practices for minimal dependencies"

    • Description: Discover best practices for building F# Portable Class Libraries with minimal dependencies, focusing on avoiding the inclusion of FSharp.Core.dll for enhanced portability.
    // Best practices for minimal dependency in F# PCL module MyBestPractices let divideNumbers(a: float, b: float) = a / b

  4. "Cross-platform F# development guidelines"

    • Description: Delve into guidelines for cross-platform F# development using Portable Class Libraries, emphasizing the exclusion of FSharp.Core.dll to streamline deployment and compatibility.
    // F# cross-platform development guidelines module CrossPlatformGuidelines let powerOfTwo(x: int) = x * x

  5. "F# PCL without FSharp.Core.dll example"

    • Description: Get a hands-on example of a Portable Class Library written in F# without referencing FSharp.Core.dll. Explore how to structure your code for maximum flexibility.
    // Example of F# PCL without FSharp.Core.dll module PCLWithoutCoreDll let squareRoot(x: float) = System.Math.Sqrt(x)

  6. "F# Portable Class Library cross-platform compatibility"

    • Description: Understand the nuances of achieving cross-platform compatibility in F# Portable Class Libraries, with a specific focus on excluding FSharp.Core.dll for seamless deployment.
    // F# PCL cross-platform compatibility module CrossPlatformCompatibility let isEven(x: int) = x % 2 = 0

  7. "Creating lightweight F# PCL projects"

    • Description: Learn the art of creating lightweight F# Portable Class Library projects by eliminating the reference to FSharp.Core.dll. Optimize your codebase for improved performance and versatility.
    // Lightweight F# PCL project without FSharp.Core.dll module LightweightProject let stringLength(s: string) = s.Length

  8. "F# PCL development without FSharp.Core.dll advantages"

    • Description: Uncover the advantages of F# Portable Class Library development without relying on FSharp.Core.dll. Explore the benefits of reduced dependencies and increased code portability.
    // Advantages of F# PCL without FSharp.Core.dll module AdvantagesWithoutCoreDll let concatenateStrings(a: string, b: string) = a + b

  9. "F# Portable Class Library best practices"

    • Description: Dive into best practices for F# Portable Class Library development, emphasizing strategies to build efficient and maintainable code while excluding FSharp.Core.dll for broader compatibility.
    // F# PCL best practices for efficiency module BestPracticesEfficiency let isPalindrome(s: string) = s = System.String(s.ToCharArray() |> Array.rev)

  10. "F# PCL cross-platform code sharing"

    • Description: Explore techniques for effective code sharing across platforms using F# Portable Class Libraries. Learn how to structure your code for maximum reusability without the need for FSharp.Core.dll.
    // F# PCL code sharing across platforms module CodeSharingAcrossPlatforms let absoluteValue(x: float) = if x < 0.0 then -x else x

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