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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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parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/js/src/tests/ecma_6/extensions/reentrant-RegExp-creation-and-gc-during-new-RegExp-pattern-ToString.js b/js/src/tests/ecma_6/extensions/reentrant-RegExp-creation-and-gc-during-new-RegExp-pattern-ToString.js
new file mode 100644
index 000000000..0ec0b493e
--- /dev/null
+++ b/js/src/tests/ecma_6/extensions/reentrant-RegExp-creation-and-gc-during-new-RegExp-pattern-ToString.js
@@ -0,0 +1,41 @@
+// |reftest| skip-if(!xulRuntime.shell) -- needs gc (newGlobal/evaluate are shimmed)
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var gTestfile =
+ "reentrant-RegExp-creation-and-gc-during-new-RegExp-pattern-ToString.js";
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 1253099;
+var summary =
+ "Don't assert when, in |new RegExp(pat)|, stringifying |pat| creates " +
+ "another RegExp and then performs a GC";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+// The fresh global object is required to ensure that the outer |new RegExp|
+// is the first RegExp created in the global (other than RegExp.prototype).
+newGlobal().evaluate(`
+var createsRegExpAndCallsGCWhenStringified =
+ {
+ toString: function() {
+ new RegExp("a");
+ gc();
+ return "q";
+ }
+ };
+
+assertEq(new RegExp(createsRegExpAndCallsGCWhenStringified).source, "q");
+`);
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);
+
+print("Tests complete");