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   源码介绍

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contents
foreword xi
preface xiii
acknowledgments xiv
about this book xvi
about the cover illustration xix
1 Introducing Go 1
1.1 Solving modern programming challenges with Go 2
Development speed 3 ■ Concurrency 3 ■ Go’s type system 5
Memory management 7
1.2 Hello, Go 7
Introducing the Go Playground 8
1.3 Summary 8
2 Go quick-start 9
2.1 Program architecture 10
2.2 Main package 11
2.3 Search package 13
search.go 14 ■ feed.go 22 ■ match.go/default.go 26
2.4 RSS matcher 32
2.5 Summary 38
Licensed to Mark Watson <nordickan@gmail.com> www.allitebooks.com
viii CONTENTS
3 Packaging and tooling 39
3.1 Packages 40
Package-naming conventions 40 ■ Package main 40
3.2 Imports 42
Remote imports 42 ■ Named imports 43
3.3 init 44
3.4 Using Go tools 45
3.5 Going farther with Go developer tools 47
go vet 47 ■ Go format 48 ■ Go documentation 48
3.6 Collaborating with other Go developers 51
Creating repositories for sharing 51
3.7 Dependency management 52
Vendoring dependencies 52 ■ Introducing gb 54
3.8 Summary 56
4 Arrays, slices, and maps 57
4.1 Array internals and fundamentals 57
Internals 58 ■ Declaring and initializing 58 ■ Working with
arrays 60 ■ Multidimensional arrays 62 ■ Passing arrays
between functions 64
4.2 Slice internals and fundamentals 65
Internals 65 ■ Creating and initializing 65 ■ Working with
slices 68 ■ Multidimensional slices 79 ■ Passing slices between
functions 80
4.3 Map internals and fundamentals 81
Internals 81 ■ Creating and initializing 83 ■ Working with
maps 84 ■ Passing maps between functions 86
4.4 Summary 87
5 Go’s type system 88
5.1 User-defined types 89
5.2 Methods 92
5.3 The nature of types 96
Built-in types 96 ■ Reference types 97 ■ Struct types 98
Licensed to Mark Watson <nordickan@gmail.com> www.allitebooks.com
CONTENTS ix
5.4 Interfaces 101
Standard library 102 ■ Implementation 104 ■ Method
sets 105 ■ Polymorphism 109
5.5 Type embedding 111
5.6 Exporting and unexporting identifiers 119
5.7 Summary 127
6 Concurrency 128
6.1 Concurrency versus parallelism 129
6.2 Goroutines 132
6.3 Race conditions 139
6.4 Locking shared resources 142
Atomic functions 142 ■ Mutexes 145
6.5 Channels 147
Unbuffered channels 148 ■ Buffered channels 153
6.6 Summary 157
7 Concurrency patterns 158
7.1 Runner 158
7.2 Pooling 167
7.3 Work 177
7.4 Summary 183
8 Standard library 184
8.1 Documentation and source code 185
8.2 Logging 187
Log package 187 ■ Customized loggers 191
Conclusion 195
8.3 Encoding/Decoding 196
Decoding JSON 196 ■ Encoding JSON 201
Conclusion 202
8.4 Input and output 203
Writer and Reader interfaces 203 ■ Working together 205
Simple curl 208 ■ Conclusion 210
8.5 Summary 210
Licensed to Mark Watson <nordickan@gmail.com> www.allitebooks.com
x CONTENTS
9 Testing and benchmarking 211
9.1 Unit testing 212
Basic unit test 212 ■ Table tests 216 ■ Mocking calls 219
Testing endpoints 223
9.2 Examples 228
9.3 Benchmarking 232
9.4 Summary 236
 index 237