October 2012
Beginner
471 pages
10h 50m
English
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Chapter 6. .NET Programming
The .NET platform is a general-purpose programming platform that can do more than just object-oriented or functional programming. This chapter covers some additional concepts available when using .NET that will offer advantages when you put them to use in your F# code.
In this chapter, you will learn how to use interfaces to build better abstractions, how to create enums and structs that can help performance, and how to use F#’s object expressions for boosting programmer productivity.
The .NET Platform
Let’s begin our look at .NET-specific concepts by examining the runtime on which .NET applications execute. This will help you understand how to take full advantage of the platform by seeing the features F# gets for free.
The CLI
The foundation of the .NET platform is the CLI, or Common Language Infrastructure. This is a specification for a runtime system that actually runs your F# code. The F# compiler produces a binary file called an assembly, which is composed of a high-level assembly language called MSIL or Microsoft Intermediate Language.
An implementation of the CLI compiles this MSIL to machine code at runtime to execute the code faster than if it were just interpreted. The compilation happens “just-in-time” as the code is needed, or JIT.
Code that is compiled to MSIL and executed through the JITer is referred to as managed code—as opposed to unmanaged code, which is simply raw machine code (typically from programs written in C or C++).
There are several ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.