Function testScript

src/background/utils/tester.js:186–208

(url, script)

 * with popular scripts that have lots of @match e.g. Handy Image.
 */
export function testScript(url, script) {
  let matex1; // main @match / @exclude-match
  let matex2; // custom @match / @exclude-match
  let inex1; // main @include / @exclude
  let inex2; // custom @include / @exclude
  const { custom, meta } = script;
  const len = (matex1 = custom.origMatch && meta.match || '').length
    + (matex2 = custom.match || '').length
    + (inex1 = custom.origInclude && meta.include || '').length
    + (inex2 = custom.include || '').length;
  const ok = (
    // Ok if lists are empty or @match + @include apply
    !len || testRules(url, script, matex1, matex2, inex1, inex2)
  ) && !(
    // and no excludes apply
    ((matex1 = custom.origExcludeMatch && meta.excludeMatch || '').length
      + (matex2 = custom.excludeMatch || '').length
      + (inex1 = custom.origExclude && meta.exclude || '').length
      + (inex2 = custom.exclude || '').length
    ) && testRules(url, script, matex1, matex2, inex1, inex2)
  );
  return ok;
}

function testRules(url, script, ...list) {
  if (curUrl !== url) setContext(url);