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Hands-On Functional Programming in Rust

You're reading from   Hands-On Functional Programming in Rust Build modular and reactive applications with functional programming techniques in Rust 2018

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781788839358
Length 249 pages
Edition 1st Edition
Languages
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Author (1):
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Andrew Johnson Andrew Johnson
Author Profile Icon Andrew Johnson
Andrew Johnson
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Table of Contents (12) Chapters Close

Preface 1. Functional Programming – a Comparison 2. Functional Control Flow FREE CHAPTER 3. Functional Data Structures 4. Generics and Polymorphism 5. Code Organization and Application Architecture 6. Mutability, Ownership, and Pure Functions 7. Design Patterns 8. Implementing Concurrency 9. Performance, Debugging, and Metaprogramming 10. Assessments 11. Other Books You May Enjoy

Mutability, Ownership, and Pure Functions

Rust has introduced some new concepts of its own with respect to object ownership. These safeguards protect the developer from certain classes of errors, such as double free memory or hanging pointers, but also create constraints that can feel unmerited at times. Functional programming may help ease some of this conflict by encouraging the use of immutable data and pure functions.

In this chapter, we will look at a case of ownership gone wrong. You will inherit code that has been abandoned as being too difficult to work with. Your job in this chapter will be to address the problems that the previous team were unable to overcome. To achieve this, you will need to use much of what you have learned so far, along with a gained understanding of the specific behaviors and constraints of ownership in Rust.

Learning outcomes:

  • Recognizing anti...
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