, written by the creator of Idris, teaches you how to improve the performance and accuracy of your programs by taking advantage of a state-of-the-art type system. This book teaches you with Idris, a language designed to support type-driven development.

About the Technology

Stop fighting type errors! Type-driven development is an approach to coding that embraces types as the foundation of your code - essentially as built-in documentation your compiler can use to check data relationships and other assumptions. With this approach, you can define specifications early in development and write code that's easy to maintain, test, and extend. Idris is a Haskell-like language with first-class, dependent types that's perfect for learning type-driven programming techniques you can apply in any codebase.

About the Book

Type-Driven Development with Idris

teaches you how to improve the performance and accuracy of your code by taking advantage of a state-of-the-art type system. In this book, you'll learn type-driven development of real-world software, as well as how to handle side effects, interaction, state, and concurrency. By the end, you'll be able to develop robust and verified software in Idris and apply type-driven development methods to other languages.

What's Inside

Understanding dependent types

Types as first-class language constructs

Types as a guide to program construction

Expressing relationships between data

About the Reader

Written for programmers with knowledge of functional programming concepts.

About the Author

Edwin Brady

leads the design and implementation of the Idris language.

Table of Contents

PART 1 - INTRODUCTION

Overview

Getting started with Idris

PART 2 - CORE IDRIS

Interactive development with types

User-defined data types

Interactive programs: input and output processing

Programming with first-class types

Interfaces: using constrained generic types

Equality: expressing relationships between data

Predicates: expressing assumptions and contracts in types

Views: extending pattern matching

PART 3 - IDRIS AND THE REAL WORLD

Streams and processes: working with infinite data

Writing programs with state

State machines: verifying protocols in types

Dependent state machines: handling feedback and errors

Type-safe concurrent programming

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