Frame-arguments-01.js (1160B)
1 // Frame.prototype.arguments with primitive values 2 3 var g = newGlobal({newCompartment: true}); 4 g.args = null; 5 var dbg = new Debugger(g); 6 var hits; 7 var v; 8 dbg.onDebuggerStatement = function (frame) { 9 hits++; 10 var args = frame.arguments; 11 assertEq(args instanceof Array, true); 12 assertEq(Array.isArray(args), false); 13 assertEq(args, frame.arguments); 14 assertEq(args.length, g.args.length); 15 for (var i = 0; i < args.length; i++) 16 assertEq(args[i], g.args[i]); 17 }; 18 19 // no formal parameters 20 g.eval("function f() { debugger; }"); 21 22 hits = 0; 23 g.eval("args = []; f();"); 24 g.eval("this.f();"); 25 g.eval("var world = Symbol('world'); " + 26 "args = ['hello', world, 3.14, true, false, null, undefined]; " + 27 "f('hello', world, 3.14, true, false, null, undefined);"); 28 g.eval("f.apply(undefined, args);"); 29 g.eval("args = [-0, NaN, -1/0]; this.f(-0, NaN, -1/0);"); 30 assertEq(hits, 5); 31 32 // with formal parameters 33 g.eval("function f(a, b) { debugger; }"); 34 35 hits = 0; 36 g.eval("args = []; f();"); 37 g.eval("this.f();"); 38 g.eval("args = ['a', 'b']; f('a', 'b');"); 39 g.eval("this.f('a', 'b');"); 40 g.eval("f.bind(null, 'a')('b');"); 41 assertEq(hits, 5);