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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /js/src/jit-test/tests/debug/Frame-newTargetEval-02.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/js/src/jit-test/tests/debug/Frame-newTargetEval-02.js b/js/src/jit-test/tests/debug/Frame-newTargetEval-02.js
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+// Test that new.target is acceptably usable in RematerializedFrames.
+
+gczeal(0);
+
+load(libdir + "jitopts.js");
+
+if (!jitTogglesMatch(Opts_Ion2NoOffthreadCompilation))
+ quit();
+
+withJitOptions(Opts_Ion2NoOffthreadCompilation, function () {
+ var g = newGlobal();
+ var dbg = new Debugger;
+
+ g.toggle = function toggle(d, expected) {
+ if (d) {
+ dbg.addDebuggee(g);
+
+ var frame = dbg.getNewestFrame();
+ assertEq(frame.implementation, "ion");
+
+ // the arrow function will not be constructing, even though it has a
+ // new.target value.
+ assertEq(frame.constructing, false);
+
+ // CONGRATS IF THIS FAILS! You, proud saviour, have made new.target parse
+ // in debug frame evals (presumably by hooking up static scope walks).
+ // Uncomment the assert below for efaust's undying gratitude.
+ // Note that we use .name here because of CCW nonsense.
+ assertEq(frame.eval('new.target').throw.unsafeDereference().name, "SyntaxError");
+ // assertEq(frame.eval('new.target').return.unsafeDereference(), expected);
+ }
+ };
+
+ g.eval("" + function f(d) { new g(d, g, 15); });
+
+ g.eval("" + function g(d, expected) { (() => toggle(d, expected))(); });
+
+ g.eval("(" + function test() {
+ for (var i = 0; i < 5; i++)
+ f(false);
+ f(true);
+ } + ")();");
+});