67 lines
1.2 KiB
Markdown
67 lines
1.2 KiB
Markdown
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# wastedassign
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`wastedassign` finds wasted assignment statements
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found the value ...
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- reassigned, but never used afterward
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- reassigned, but reassigned without using the value
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## Example
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```go
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package main
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import "fmt"
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func f() int {
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a := 0
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b := 0
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fmt.Print(a)
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fmt.Print(b)
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a = 1 // This reassignment is wasted, because never used afterwards. Wastedassign find this
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b = 1 // This reassignment is wasted, because reassigned without use this value. Wastedassign find this
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b = 2
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fmt.Print(b)
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return 1 + 2
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}
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```
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```bash
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$ go vet -vettool=`which wastedassign` sample.go
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# command-line-arguments
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./sample.go:10:2: assigned to a, but never used afterwards
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./sample.go:12:2: assigned to b, but reassigned without using the value
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```
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## Installation
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```
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go get -u github.com/sanposhiho/wastedassign/v2/cmd/wastedassign
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```
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## Usage
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```
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# in your project
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go vet -vettool=`which wastedassign` ./...
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```
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And, you can use wastedassign in [golangci-lint](https://github.com/golangci/golangci-lint).
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## Contribution
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I am waiting for your contribution :D
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Feel free to create an issue or a PR!
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### Run test
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```
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go test
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```
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