aoas/server: models/permission.go; 9 LoC

Found a possible issue in [aoas/server](https://www.github.com/aoas/server) at [models/permission.go](https://github.com/aoas/server/blob/f352d098e90d7c4fd6f0176a5a0fc152ab86e82e/models/permission.go#L48-L56)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first
issue it finds, so please do not limit your consideration to the contents of the below message.

>

[Click here to see the code in its original context.](https://github.com/aoas/server/blob/f352d098e90d7c4fd6f0176a5a0fc152ab86e82e/models/permission.go#L48-L56)

Click here to show the 9 line(s) of Go which triggered the analyzer.

```go
for _, c := range permissions {
// check exist
if IsExist(&c) {
continue
}
if err := Insert(&c); err != nil {
return err
}
}

```

Click here to show extra information the analyzer produced.

```
No path was found through the callgraph that could lead to a function which writes a pointer argument.

No path was found through the callgraph that could lead to a function which passes a pointer to third-party code.

root signature {IsExist 1} was not found in the callgraph; reference was passed directly to third-party code
```

Leave a reaction on this issue to contribute to the project by classifying this instance as a **Bug** :-1:, **Mitigated** :+1:, or **Desirable Behavior** :rocket:
See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: f352d098e90d7c4fd6f0176a5a0fc152ab86e82e

Start with models/permission.go at lines 48-56 and review the linked range-loop finding in its original context. Determine whether this instance is a Bug, Mitigated, or Desirable Behavior, then leave the corresponding reaction on the issue; no test or other entry point is mentioned.

Written by the indexing model from the issue text.