# dll

**D**efer **L**oop **L**inter

[![Build Status](https://cloud.drone.io/api/badges/hamburghammer/dll/status.svg)](https://cloud.drone.io/hamburghammer/dll)

A simple linter to find `defer` statements inside of for loops in Go source.

This is a fork from [gsquire/dll](https://github.com/gsquire/dll) with support for concurrent analyses. The goal of it was to practice the work with goroutines.


## Why?
It's often erroneous to use `defer` inside of a loop as it can lead to memory leaks or other
unintended behavior. It can also be easy to miss this in a code review as using `defer` to
close sockets or files is a common Go idiom. This tool aims to point these out by simply printing
the line of a `defer` statement when it is found inside of a loop.

## Install

```sh
go get github.com/gsquire/dll
```

## Usage

```sh
dll source.go

dll *.go
```

## Contributing
Found a bug? Found a case this didn't catch? Great! Feel free to open an issue or add a test case!

## License
MIT