tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Frame-onStep-11.js (1174B)

      1 // Stepping out of a finally should not appear to
      2 // step backward to some earlier statement.
      3 
      4 var g = newGlobal({newCompartment: true});
      5 g.eval(`function f() {
      6         debugger;              // +0
      7         var x = 0;             // +1
      8         try {                  // +2
      9           x = 1;               // +3
     10           throw 'something';   // +4
     11         } catch (e) {          // +5
     12           x = 2;               // +6
     13         } finally {            // +7
     14           x = 3;               // +8
     15         }                      // +9
     16         x = 4;                 // +10
     17       }`);                     // +11
     18 
     19 var dbg = Debugger(g);
     20 
     21 let foundLines = '';
     22 
     23 dbg.onDebuggerStatement = function(frame) {
     24  let debugLine = frame.script.getOffsetLocation(frame.offset).lineNumber;
     25  frame.onStep = function() {
     26    // Only record a stop when the offset is an entry point.
     27    let foundLine = this.script.getOffsetLocation(this.offset).lineNumber;
     28    if (foundLine != debugLine && this.script.getLineOffsets(foundLine).indexOf(this.offset) >= 0) {
     29      foundLines += "," + (foundLine - debugLine);
     30    }
     31  };
     32 };
     33 
     34 g.f();
     35 
     36 assertEq(foundLines, ",1,2,3,4,5,6,7,8,10,11");