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-rw-r--r--js/src/jit-test/tests/debug/Script-gc-01.js26
1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-gc-01.js b/js/src/jit-test/tests/debug/Script-gc-01.js
new file mode 100644
index 000000000..5d71b1e39
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-gc-01.js
@@ -0,0 +1,26 @@
+// Debugger.Script instances with live referents stay alive.
+
+var N = 4;
+var g = newGlobal();
+var dbg = new Debugger(g);
+var i;
+dbg.onDebuggerStatement = function (frame) {
+ assertEq(frame.script instanceof Debugger.Script, true);
+ frame.script.id = i;
+};
+
+g.eval('var arr = [];')
+for (i = 0; i < N; i++) // loop to defeat conservative GC
+ g.eval("arr.push(function () { debugger }); arr[arr.length - 1]();");
+
+gc();
+
+var hits;
+dbg.onDebuggerStatement = function (frame) {
+ hits++;
+ assertEq(frame.script.id, i);
+};
+hits = 0;
+for (i = 0; i < N; i++)
+ g.arr[i]();
+assertEq(hits, N);