<p>I've never liked decorators much, one of the reasons I don't like python too much, or I am weary of frameworks such as Symfony in PHP. But now I am having a use case where using the struct tags "wouldn't be too bad".</p>
<p>I feel like I could make an exeption for struct tags, since they are a bit different than function decorators and such, they serve more as metadata vs methods that run with the function. But I also don't want to let the camel of decorators edge his way into my tent!</p>
<p>So I guess there are two methods, #1, with tags:</p>
<pre><code>type MyStruct struct {
FieldOne string `meta-tag:"this should be bold"`
FieldTwo int
}
</code></pre>
<p>Or with an interface:</p>
<pre><code>type MetaData interface {
whoIsBold() []string
}
type MyStruct struct {
FiledOne string
FieldTwo int
}
func (m * MyStruct) whoIsBold() string {
return []string{"FieldOne"}
}
</code></pre>
<p>Any pros & cons of both approaches?</p>
<hr/>**评论：**<br/><br/>djherbis: <pre><p>What are you planning to use this for? Depending on your use case, there might be a nicer solution.</p></pre>drink_with_me_to_day: <pre><p>I'm just trying to simplify database crud, without using a ORM, so I just need to store some table related metadata (pk, fk, json, etc).</p></pre>djherbis: <pre><p>Well I still think it depends on how you will be using this data as to which is better. A simple pro/con observation might be that tags will probably take less code to start, but an interface could be more flexible if you design it well.</p></pre>
