js/src/jit-test/tests/arguments/rest-disallow-arguments.js

Thu, 15 Jan 2015 21:03:48 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 15 Jan 2015 21:03:48 +0100
branch
TOR_BUG_9701
changeset 11
deefc01c0e14
permissions
-rw-r--r--

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

michael@0 1 load(libdir + "asserts.js");
michael@0 2 var ieval = eval;
michael@0 3
michael@0 4 // Now for a tour of the various ways you can access arguments.
michael@0 5 assertThrowsInstanceOf(function () {
michael@0 6 ieval("function x(...rest) { arguments; }");
michael@0 7 }, SyntaxError)
michael@0 8 assertThrowsInstanceOf(function () {
michael@0 9 Function("...rest", "arguments;");
michael@0 10 }, SyntaxError);
michael@0 11 assertThrowsInstanceOf(function (...rest) {
michael@0 12 eval("arguments;");
michael@0 13 }, SyntaxError);
michael@0 14 assertThrowsInstanceOf(function (...rest) {
michael@0 15 eval("arguments = 42;");
michael@0 16 }, SyntaxError);
michael@0 17
michael@0 18 function g(...rest) {
michael@0 19 assertThrowsInstanceOf(h, Error);
michael@0 20 }
michael@0 21 function h() {
michael@0 22 g.arguments;
michael@0 23 }
michael@0 24 g();
michael@0 25
michael@0 26 // eval() is evil, but you can still use it with rest parameters!
michael@0 27 function still_use_eval(...rest) {
michael@0 28 eval("x = 4");
michael@0 29 }
michael@0 30 still_use_eval();

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