https://github.com/josephbuchma/calmly

golang try - catch - finally
https://github.com/josephbuchma/calmly

exception-handler golang panic

Last synced: about 2 months ago
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golang try - catch - finally

• Host: GitHub
• URL: https://github.com/josephbuchma/calmly
• Owner: josephbuchma
• Created: 2015-12-01T06:36:01.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2016-02-06T11:40:47.000Z (almost 9 years ago)
• Last Synced: 2024-04-23T23:26:23.088Z (9 months ago)
• Topics: exception-handler, golang, panic
• Language: Go
• Size: 2.93 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Calmly

[![Build Status](https://travis-ci.org/JosephBuchma/calmly.svg?branch=master)](https://travis-ci.org/JosephBuchma/calmly)

Package calmly is example of golang package that should not exist.

```go

import (

  "fmt"

  "github.com/JosephBuchma/calmly"

)

type MyError struct{}

type MyAnotherError struct{}

func main(){

  calmly.Try(func(){

    panic(MyError{}) // `raise` error (any type)

  // Ideally you should pass into Catch only type, (e.g. `MyError`, not `MyError{}`),

  // but such syntax is not supported by golang yet.

  // Discussion is here https://groups.google.com/forum/#!topic/golang-nuts/dYMlhyq5FpA

  }).Catch(MyError{}, func(e calmly.E){

    fmt.Println("Error catched")

  // Add as many catches as you need...  

  }).Catch(MyAnotherError{}, func(e calmly.E) {

    fmt.Println("Not this time")

  // e.g. `catch (...)`

  }).CatchAny(func(e calmly.E) {

    fmt.Println("Not this time")

  // Finally runs anyway. Finally is required clause.

  // If you don't need any finalization, simply pass nil as parameter instead of func(). 

  }).Finally(func(){

    fmt.Println("Finalization")

  })

}

```

See calmly_test.go for more examples.