js/src/jit-test/tests/debug/Script-gc-01.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 // |jit-test| debug
michael@0 2 // Debugger.Script instances with live referents stay alive.
michael@0 3
michael@0 4 var N = 4;
michael@0 5 var g = newGlobal();
michael@0 6 var dbg = new Debugger(g);
michael@0 7 var i;
michael@0 8 dbg.onDebuggerStatement = function (frame) {
michael@0 9 assertEq(frame.script instanceof Debugger.Script, true);
michael@0 10 frame.script.id = i;
michael@0 11 };
michael@0 12
michael@0 13 g.eval('var arr = [];')
michael@0 14 for (i = 0; i < N; i++) // loop to defeat conservative GC
michael@0 15 g.eval("arr.push(function () { debugger }); arr[arr.length - 1]();");
michael@0 16
michael@0 17 gc();
michael@0 18
michael@0 19 var hits;
michael@0 20 dbg.onDebuggerStatement = function (frame) {
michael@0 21 hits++;
michael@0 22 assertEq(frame.script.id, i);
michael@0 23 };
michael@0 24 hits = 0;
michael@0 25 for (i = 0; i < N; i++)
michael@0 26 g.arr[i]();
michael@0 27 assertEq(hits, N);

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