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Metaprogramming in Go: A Practical Guide to Code Generation, Reflection, and Generics
Format:
Hardcover
Detalles del producto
Disponibilidad:
En stock
En stock
Peso con empaque:
0.83 kg
0.83 kg
Devolución:
Sí
Sí
Condición
Nuevo
Nuevo
Producto de:
Amazon
Amazon
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USA
USA
Sobre este producto
- Have you ever found yourself writing the same, mind-numbing boilerplate code over and over?Maybe it's a String() method for a set of constants. Maybe it's a Validate() function for a struct. Or maybe it's that complex, error-prone loop for scanning a database row. You know there has to be a better way, but every path seems confusing.You've heard that reflection is slow, dangerous, and riddled with runtime panics. You've heard code generation is overly complex and hard to set up. And you've heard generics are new, and you're not quite sure how they fit into the picture.If this sounds familiar, this book was written for you.I will show you that these advanced topics are not "magic." They are tools. Like any tool, you just need a guide to show you how to use them safely, effectively, and idiomatically. We'll replace the fear of reflection with a "defensive" safety checklist and turn the chore of code generation into your most powerful automation skill.What's insideThis book is built on a clear, three-part structure. You will learn by doing, building real-world tools from scratch and gaining a deep, practical understanding of each pillar.Pillar 1: Code Generation (The Performer)Master the most idiomatic "Go way" of metaprogramming.Learn to actually use go generate for its intended purpose.Parse Go source code with go/ast and go/packages to build your own tools, including a custom enum stringer and a mock generator for interfaces.Pillar 2: Reflection (The Flexer)Finally understand the "Laws of Reflection" in simple, clear terms.Learn why it's slow (with real benchmarks!) and how to write "panic-free" reflection code.Move beyond the fear and build the quintessential reflection tool: a runtime configuration loader and a basic dependency injection container.Pillar 3: Generics (The Re-user)See generics as a new and powerful form of compile-time metaprogramming.Write fast, type-safe, and reusable functions like Map, Filter, and Reduce that have zero runtime cost.Discover the powerful new synergy between generics and interfaces, and—just as importantly—learn the critical limitations of what generics can't do.The Final Showdown We will solve one problem—a universal struct validator—three different ways, one for each pillar. This final case study will give you a definitive, side-by-side comparison (on performance, safety, and ease of use) and a mental framework for choosing the right tool for any challenge.Who it's meant forThis book is for the intermediate Go developer who is comfortable with the basics (functions, structs, interfaces) but is ready to take the next step.If you're a Go developer looking to eliminate boilerplate and write smarter, cleaner code...If you're a team lead who wants to build powerful, maintainable internal tooling...If you're an open-source author who wants to provide a high-performance, "magic-free" experience for your users......then this book is your guide.Stop writing repetitive code. Start building the tools that write it for you.This book is your practical, hands-on journey from being a Go user to being a Go metaprogrammer. It gives you the skills to automate the boilerplate, build more powerful libraries, and write the kind of high-leverage code that defines a senior engineer.Master the code behind the code. Get your copy of Metaprogramming in Go today.
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U$S 74,98
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