michael@0: // Debugger.Environment.prototype.callee reveals the callee of environments
michael@0: // that have them.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = new Debugger;
michael@0: var gw = dbg.addDebuggee(g);
michael@0: 
michael@0: function check(code, expectedType, expectedCallee) {
michael@0:   print("check(" + uneval(code) + ")");
michael@0:   var hits;
michael@0:   dbg.onDebuggerStatement = function (frame) {
michael@0:     hits++;
michael@0:     var env = frame.environment;
michael@0:     assertEq(env.type, expectedType);
michael@0:     assertEq(env.callee, expectedCallee);
michael@0:   };
michael@0:   hits = 0;
michael@0:   g.eval(code);
michael@0:   assertEq(hits, 1);
michael@0: }
michael@0: 
michael@0: check('debugger;', 'object', null);
michael@0: check('with({}) { debugger; };', 'with', null);
michael@0: check('let (x=1) { debugger; };', 'declarative', null);
michael@0: 
michael@0: g.eval('function f() { debugger; }');
michael@0: check('f()', 'declarative', gw.makeDebuggeeValue(g.f));
michael@0: 
michael@0: g.eval('function g() { h(); }');
michael@0: g.eval('function h() { debugger; }');
michael@0: check('g()', 'declarative', gw.makeDebuggeeValue(g.h));
michael@0: 
michael@0: // Strict direct eval gets its own environment.
michael@0: check('"use strict"; eval("debugger");', 'declarative', null);
michael@0: g.eval('function j() { "use strict"; eval("debugger;"); }');
michael@0: check('j()', 'declarative', null);
michael@0: 
michael@0: // Lenient direct eval shares eval's caller's environment,
michael@0: // although this is a great evil.
michael@0: check('eval("debugger");', 'object', null);
michael@0: g.eval('function k() { eval("debugger;"); }');
michael@0: check('k()', 'declarative', gw.makeDebuggeeValue(g.k));
michael@0: 
michael@0: g.eval('function m() { debugger; yield true; }');
michael@0: check('m().next();', 'declarative', gw.makeDebuggeeValue(g.m));
michael@0: 
michael@0: g.eval('function n() { let (x = 1) { debugger; } }');
michael@0: check('n()', 'declarative', null);
michael@0: 
michael@0: g.eval('function* o() { debugger; yield true; }');
michael@0: check('o().next();', 'declarative', gw.makeDebuggeeValue(g.o));