tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Frame-onStep-17.js (976B)

      1 // Test how stepping interacts with for-in/of statements.
      2 
      3 var g = newGlobal({newCompartment: true});
      4 var dbg = new Debugger;
      5 var gw = dbg.addDebuggee(g);
      6 var log;
      7 var previous;
      8 
      9 dbg.onDebuggerStatement = function (frame) {
     10  let debugLine = frame.script.getOffsetLocation(frame.offset).lineNumber;
     11  log = '';
     12  previous = '';
     13  frame.onStep = function() {
     14    let foundLine = this.script.getOffsetLocation(this.offset).lineNumber;
     15    if (this.script.getLineOffsets(foundLine).indexOf(this.offset) >= 0) {
     16      let thisline = (foundLine - debugLine).toString(16);
     17      if (thisline !== previous) {
     18        log += thisline;
     19        previous = thisline;
     20      }
     21    }
     22  };
     23 };
     24 
     25 function testOne(decl, loopKind) {
     26  let body = "var array = [2, 4, 6];\ndebugger;\nfor (" + decl + " iter " +
     27      loopKind + " array) {\n  print(iter);\n}\n";
     28  g.eval(body);
     29  assertEq(log, "12121214");
     30 }
     31 
     32 for (let decl of ["", "var", "let"]) {
     33  testOne(decl, "in");
     34  testOne(decl, "of");
     35 }