remark: Style in Code Block

Hello, I wanna do this with remark.js: When inside code block:

function say_hello_to(you) {
    // __I_wanna_be_strong__
    // _I_wanna_emphasize_this_
    // .custom-class[yummy...]
    alert("Hello, " + you + "!");
}

The tokens __strong__, _em_ and .class-name[blah...] should work just as they do outside the block, meaning they are interpreted as strong, em and <div class="class-name">blah...</div>, instead of showing the raw markdown. Is this possible? Maybe process those tokens first then wrap them into a <pre><code></code></pre> block?

I really love remark.js!