michael@0: // |jit-test| debug
michael@0: // Test that we create new Debugger.Frames and reuse old ones correctly with recursion.
michael@0: 
michael@0: var g = newGlobal();
michael@0: g.debuggeeGlobal = this;
michael@0: g.eval("(" + function () {
michael@0:         function id(f) {
michael@0:             return ("id" in f) ? f.id : (f.id = nextid++);
michael@0:         }
michael@0: 
michael@0:         var dbg = new Debugger(debuggeeGlobal);
michael@0:         dbg.onDebuggerStatement = function (frame) {
michael@0:             var a = [];
michael@0:             for (; frame; frame = frame.older)
michael@0:                 a.push(frame);
michael@0:             var s = '';
michael@0:             while (a.length)
michael@0:                 s += id(a.pop());
michael@0:             results.push(s);
michael@0:         };
michael@0:     } + ")();");
michael@0: 
michael@0: function cons(a, b) {
michael@0:     debugger;
michael@0:     return [a, b];
michael@0: }
michael@0: 
michael@0: function tree(n) {
michael@0:     if (n < 2)
michael@0:         return n;
michael@0:     return cons(tree(n - 1), tree(n - 2));
michael@0: }
michael@0: 
michael@0: g.eval("results = []; nextid = 0;");
michael@0: debugger;
michael@0: assertEq(g.results.join(","), "0");
michael@0: assertEq(g.nextid, 1);
michael@0: 
michael@0: g.eval("results = [];");
michael@0: tree(2);
michael@0: assertEq(g.results.join(","), "012"); // 0=global, 1=tree, 2=cons
michael@0: 
michael@0: g.eval("results = []; nextid = 1;");
michael@0: tree(3);
michael@0: assertEq(g.results.join(","), "0123,014"); //0=global, 1=tree(3), 2=tree(2), 3=cons, 4=cons
michael@0: 
michael@0: g.eval("results = []; nextid = 1;");
michael@0: tree(4);
michael@0: // 0=global, 1=tree(4), 2=tree(3), 3=tree(2), 4=cons, tree(1), 5=cons, 6=tree(2), 7=cons, 8=cons
michael@0: assertEq(g.results.join(","), "01234,0125,0167,018");