Go Programming Language, The (häftad)
Format
Häftad (Paperback)
Språk
Engelska
Antal sidor
400
Utgivningsdatum
2015-11-05
Upplaga
1
Förlag
Addison-Wesley Professional
Medarbetare
Donovan, Alan / Kernighan, Brian
Dimensioner
231 x 185 x 25 mm
Vikt
817 g
Antal komponenter
1
Komponenter
,
ISBN
9780134190440
Go Programming Language, The (häftad)

Go Programming Language, The

Häftad Engelska, 2015-11-05
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The Go Programming Language is the authoritative resource for any programmer who wants to learn Go. It shows how to write clear and idiomatic Go to solve real-world problems. The book does not assume prior knowledge of Go nor experience with any specific language, so youll find it accessible whether youre most comfortable with JavaScript, Ruby, Python, Java, or C++.

  • The first chapter is a tutorial on the basic concepts of Go, introduced through programs for file I/O and text processing, simple graphics, and web clients and servers.
  • Early chapters cover the structural elements of Go programs: syntax, control flow, data types, and the organization of a program into packages, files, and functions. The examples illustrate many packages from the standard library and show how to create new ones of your own. Later chapters explain the package mechanism in more detail, and how to build, test, and maintain projects using the go tool.
  • The chapters on methods and interfaces introduce Gos unconventional approach to object-oriented programming, in which methods can be declared on any type and interfaces are implicitly satisfied. They explain the key principles of encapsulation, composition, and substitutability using realistic examples.
  • Two chapters on concurrency present in-depth approaches to this increasingly important topic. The first, which covers the basic mechanisms of goroutines and channels, illustrates the style known as communicating sequential processes for which Go is renowned. The second covers more traditional aspects of concurrency with shared variables. These chapters provide a solid foundation for programmers encountering concurrency for the first time.
  • The final two chapters explore lower-level features of Go. One covers the art of metaprogramming using reflection. The other shows how to use the unsafe package to step outside the type system for special situations, and how to use the cgo tool to create Go bindings for C libraries.
The book features hundreds of interesting and practical examples of well-written Go code that cover the whole language, its most important packages, and a wide range of applications. Each chapter has exercises to test your understanding and explore extensions and alternatives. Source code is freely available for download from http://gopl.io/ and may be conveniently fetched, built, and installed using the go get command.
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Övrig information

Alan Donovan is a Staff Engineer in Google's infrastructure division, specializing in software development tools. Since 2012, he has been working on the Go team, designing libraries and tools for static analysis. He is the author of 'oracle', 'godoc -analysis', 'eg', and 'gorename'. Brian Kernighan was in the Computing Science Research center at Bell Labs until 2000, where he worked on languages and tools for Unix. He is now a professor in the Computer Science Department at Princeton. He is the co-author of several books, including The C Programming Language and The Practice of Programming.

Innehållsförteckning

Preface  xi

 

Chapter 1: Tutorial 1

1.1 Hello, World 1

1.2 Command-Line Arguments 4

1.3 Finding Duplicate Lines 8

1.4 Animated GIFs 13

1.5 Fetching a URL 15

1.6 Fetching URLs Concurrently 17

1.7 A Web Server 19

1.8 Loose Ends 23

 

Chapter 2: Program Structure 27

2.1 Names 27

2.2 Declarations 28

2.3 Variables 30

2.4 Assignments 36

2.5 Type Declarations 39

2.6 Packages and Files 41

2.7 Scope 45

 

Chapter 3: Basic Data Types 51

3.1 Integers 51

3.2 Floating-Point Numbers 56

3.3 Complex Numbers 61

3.4 Booleans 63

3.5 Strings 64

3.6 Constants 75

 

Chapter 4: Composite Types 81

4.1 Arrays 81

4.2 Slices 84

4.3 Maps 93

4.4 Structs 99

4.5 JSON 107

4.6 Text and HTML Templates 113

 

Chapter 5: Functions 119

5.1 Function Declarations 119

5.2 Recursion 121

5.3 Multiple Return Values 124

5.4 Errors 127

5.5 Function Values 132

5.6 Anonymous Functions 135

5.7 Variadic Functions 142

5.8 Deferred Function Calls 143

5.9 Panic 148

5.10 Recover 151

 

Chapter 6:. Methods 155

6.1 Method Declarations 155

6.2 Methods with a Pointer Receiver 158

6.3 Composing Types by Struct Embedding 161

6.4 Method Values and Expressions 164

6.5 Example: Bit Vector Type 165

6.6 Encapsulation 168

 

Chapter 7: Interfaces 171

7.1 Interfaces as Contracts 171

7.2 Interface Types 174

7.3 Interface Satisfaction 175

7.4 Parsing Flags with flag.Value 179

7.5 Interface Values 181

7.6 Sorting with sort.Interface 186

7.7 The http.Handler Interface 191

7.8 The error Interface 196

7.9 Example: Expression Evaluator 197

7.10 Type Assertions 205

7.11 Discriminating Errors with Type Assertions 206

7.12 Querying Behaviors with Interface Type Assertions 208

7.13 Type Switches 210

7.14 Example: Token-Based XML Decoding 213

7.15 A Few Words of Advice 216

 

Chapter 8: Goroutines and Channels 217

8.1 Goroutines 217

8.2 Example: Concurrent Clock Server 219

8.3 Example: Concu rent Echo Server 222

8.4 Channels 225

8.5 Looping in Parallel 234

8.6 Example: Concurrent Web Crawler 239

8.7 Multiplexing with select 244

8.8 Example: Concurrent Directory Traversal 247

8.9 Cancellation 251

8.10 Example: Chat Server 253

 

Chapter 9: Concurrency with Shared Variables 257

9.1 Race Conditions 257

9.2 Mutual Exclusion: sync.Mutex 262

9.3 Read/Write Mutexes: sync.RWMutex 266

9.4 Memory Sync...