The Tor Browser / file revision

 /*

  * Debugger.Source.prototype.text should correctly retrieve the source for

  * code compiled with CompileOptions::LAZY_SOURCE.

  */

 // withSourceHook isn't defined if you pass the shell the --fuzzing-safe

 // option. Skip this test silently, to avoid spurious failures.

 if (typeof withSourceHook != 'function')

   quit(0);

 let g = newGlobal();

 let dbg = new Debugger(g);

 function test(source) {

   // To ensure that we're getting the value the source hook returns, make

   // it differ from the actual source.

   let frobbed = source.replace(/debugger/, 'reggubed');

   let log = '';

   withSourceHook(function (url) {

     log += 's';

     assertEq(url, "BanalBivalve.jsm");

     return frobbed;

   }, () => {

     dbg.onDebuggerStatement = function (frame) {

       log += 'd';

       assertEq(frame.script.source.text, frobbed);

     }

     g.evaluate(source, { fileName: "BanalBivalve.jsm",

                          sourceIsLazy: true });

   });

   assertEq(log, 'ds');

 }

 test("debugger; // Ignominious Iguana");

 test("(function () { debugger; /* Meretricious Marmoset */})();");

 test("(() => { debugger; })(); // Gaunt Gibbon");