tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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syntax-parsed-arrow-then-sourcemap-directive.js (1749B)

      1 // |reftest| skip-if(!xulRuntime.shell) -- needs Debugger
      2 /*
      3 * Any copyright is dedicated to the Public Domain.
      4 * http://creativecommons.org/licenses/publicdomain/
      5 */
      6 
      7 //-----------------------------------------------------------------------------
      8 var BUGNUMBER = 1596706;
      9 var summary =
     10  "Properly apply a source map directive that's only tokenized by a syntax " +
     11  "parser (because the directive comment appears immediately after an arrow " +
     12  "function with expression body)";
     13 
     14 print(BUGNUMBER + ": " + summary);
     15 
     16 /**************
     17 * BEGIN TEST *
     18 **************/
     19 
     20 var g = newGlobal({newCompartment: true});
     21 var dbg = new Debugger(g);
     22 
     23 var script;
     24 dbg.onDebuggerStatement = function (frame)
     25 {
     26  script = frame.script;
     27 };
     28 
     29 function checkSourceMapFor(arrowFunc, sourceMap)
     30 {
     31  g.evaluate(`${arrowFunc}
     32 //# sourceMappingURL=${sourceMap}
     33 debugger;`);
     34 
     35  assertEq(script instanceof Debugger.Script, true,
     36           "expected a Debugger.Script for " + arrowFunc);
     37 
     38  var source = script.source;
     39  assertEq(source instanceof Debugger.Source, true,
     40           "expected a Debugger.Source for " + arrowFunc);
     41 
     42  assertEq(source.sourceMapURL, sourceMap,
     43           "unexpected source map for " + arrowFunc);
     44 }
     45 
     46 // block followed by semicolon
     47 checkSourceMapFor("x=>{};", "http://example.com/foo.js");
     48 
     49 // block not followed by semicolon
     50 checkSourceMapFor("x=>{}", "http://example.com/bar.js");
     51 
     52 // expr followed by semicolon
     53 checkSourceMapFor("x=>y;", "http://example.com/baz.js");
     54 
     55 // expr not followed by semicolon
     56 checkSourceMapFor("x=>y", "http://example.com/bar.js");
     57 
     58 /******************************************************************************/
     59 
     60 if (typeof reportCompare === "function")
     61  reportCompare(true, true);
     62 
     63 print("Tests complete");