A simple Event Emitter for Go.
Go
Latest commit cbe5fe2 Apr 11, 2016 @chuckpreslar Merge pull request #10 from lpetre/once_fix
Make sure writing to the onces map is done with the lock

README.md

emission

A simple event emitter for Go.

Build Status

Installation

With Google's Go installed on your machine:

$ go get -u github.com/chuckpreslar/emission

Usage

If you've ever used an event emitter before, using Emission should be very familiar.

package main

import (
  "fmt"
)

import (
  "github.com/chuckpreslar/emission"
)

func main() {
  emitter := emission.NewEmitter()

  hello := func(to string) {
    fmt.Printf("Hello %s!\n", to)
  }

  count := func(count int) {
    for i := 0; i < count; i++ {
      fmt.Println(i)
    }
  }

  emitter.On("hello", hello).
    On("count", count).
    Emit("hello", "world").
    Emit("count", 5)
}

About

The emission package provides an event emitter making use of the reflect packages ability to call functions. Using the Call method on the value of a function allows passing any type of function to the event emiiter, regardless of the functions parameters.

Documentation

View godoc's or visit godoc.org.

$ godoc emission

License

The MIT License (MIT)

Copyright (c) 2013 - 2015 Chuck Preslar

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.