切片类型的 Go-地道命名

Question

当我需要切片上的方法时，我必须声明一个新类型。但是我应该给它起什么名字呢？

type SliceSomething []Something 或 type SomethingSlice []Something?

因为读作 "slice of something" 第一个似乎更好，但自动完成可能更喜欢第二个。

Answer 1

查看 Go source code 以获得普遍认可的成语。

Answer 2

Variable names in Go should be short rather than long.
This is especially true for local variables with limited scope.
Prefer c to lineCount. Prefer i to sliceIndex.

The basic rule: the further from its declaration that a name is used, the more descriptive the name must be.

这就是为什么您不会经常在 go 源中找到“Slice”的原因，除了：

encoding/gob/encoder_test.go:335:  type recursiveSlice []recursiveSlice
encoding/json/encode_test.go:107:  type renamedByteSlice []byte
encoding/json/encode_test.go:108:  type renamedRenamedByteSlice []renamedByte
regexp/onepass.go:283:             type runeSlice []rune
sort/sort.go:233:                  type IntSlice []int
sort/sort.go:243:                  type Float64Slice []float64
sort/sort.go:258:                  type StringSlice []string
unicode/maketables.go:1118:        type runeSlice []rune

因此，如果您在名称中添加“Slice”，则为type SomethingSlice []Something而不是 type SliceSomething []Something.

切片类型的 Go-地道命名

Go-idiomatic naming of slice types

go