michael@0: // frame.environment is different for different activations of a scope.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = Debugger(g);
michael@0: g.eval("function h() { debugger; }");
michael@0: var arr;
michael@0: dbg.onDebuggerStatement = function (hframe) {
michael@0:     var e = hframe.older.environment;
michael@0:     assertEq(arr.indexOf(e), -1);
michael@0:     arr.push(e);
michael@0: };
michael@0: 
michael@0: function test(code, expectedHits) {
michael@0:     arr = [];
michael@0:     g.eval(code);
michael@0:     assertEq(arr.length, expectedHits);
michael@0: }
michael@0: 
michael@0: // two separate calls to a function
michael@0: test("(function () { var f = function (a) { h(); return a; }; f(1); f(2); })();", 2);
michael@0: 
michael@0: // recursive calls to a function
michael@0: test("(function f(n) { h(); return n < 2 ? 1 : n * f(n - 1); })(3);", 3);
michael@0: 
michael@0: // separate visits to a block in the same call frame
michael@0: test("(function () { for (var i = 0; i < 3; i++) { let j = i * 4; h(); }})();", 3);
michael@0: 
michael@0: // two strict direct eval calls in the same function scope
michael@0: test("(function () { 'use strict'; for (var i = 0; i < 3; i++) eval('h();'); })();", 3);