michael@0: load(libdir + "asserts.js");
michael@0: var ieval = eval;
michael@0: 
michael@0: // Now for a tour of the various ways you can access arguments.
michael@0: assertThrowsInstanceOf(function () {
michael@0:     ieval("function x(...rest) { arguments; }");
michael@0: }, SyntaxError)
michael@0: assertThrowsInstanceOf(function () {
michael@0:     Function("...rest", "arguments;");
michael@0: }, SyntaxError);
michael@0: assertThrowsInstanceOf(function (...rest) {
michael@0:     eval("arguments;");
michael@0: }, SyntaxError);
michael@0: assertThrowsInstanceOf(function (...rest) {
michael@0:     eval("arguments = 42;");
michael@0: }, SyntaxError);
michael@0: 
michael@0: function g(...rest) {
michael@0:     assertThrowsInstanceOf(h, Error);
michael@0: }
michael@0: function h() {
michael@0:     g.arguments;
michael@0: }
michael@0: g();
michael@0: 
michael@0: // eval() is evil, but you can still use it with rest parameters!
michael@0: function still_use_eval(...rest) {
michael@0:     eval("x = 4");
michael@0: }
michael@0: still_use_eval();