Bug 311387 – stylechecker is trying to tackle lines contained in R"js( … )js"_s

• Component: Tools / Tests
• Status: NEW

[Karl Dubost]

In my case I was working on a script injection:
And the style checker sent:

Source/WebCore/page/Quirks.cpp:143: error: [whitespace/parens] More than one command on the same line in if
Source/WebCore/page/Quirks.cpp:146: error: [whitespace/braces] Place brace on its own line for function definitions.
Source/WebCore/page/Quirks.cpp:155: error: [whitespace/parens] More than one command on the same line in if
Source/WebCore/page/Quirks.cpp:160: error: [whitespace/newline] More than one command on the same line

For this code:

static constexpr auto ceacBeforeUnloadFixScript = R"js((function() {
    if (window.__ceacBeforeUnloadFix) return;
    window.__ceacBeforeUnloadFix = true;
    var origAEL = window.addEventListener;
    window.addEventListener = function(type, fn, opts) {
        if (type === 'beforeunload') {
            return origAEL.call(this, type, function(e) {
                var ae = document.activeElement;
                if (ae && ae.tagName === 'INPUT') {
                    var t = (ae.type || '').toLowerCase();
                    if (t === 'radio' || t === 'checkbox' || t === 'submit' || t === 'button')
                        return;
                }
                if (typeof fn === 'function') fn.call(this, e);
            }, opts);
        }
        return origAEL.apply(this, arguments);
    };
})();)js"_s;


The easy fix is to put everything as a one-liner but then we lose the readability of the code. 
Maybe the style should avoid to parse lines inside a R"js( … )js"_s structure.

Related to https://github.com/WebKit/WebKit/pull/61948

[Radar WebKit Bug Importer]

<rdar://problem/174459210>