diff -r 000000000000 -r 6474c204b198 js/src/jsapi-tests/testSourcePolicy.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jsapi-tests/testSourcePolicy.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,48 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsscript.h"
+
+#include "jsapi-tests/tests.h"
+
+BEGIN_TEST(testBug795104)
+{
+    JS::CompileOptions opts(cx);
+    JS::CompartmentOptionsRef(cx->compartment()).setDiscardSource(true);
+    const size_t strLen = 60002;
+    char *s = static_cast<char *>(JS_malloc(cx, strLen));
+    CHECK(s);
+    s[0] = '"';
+    memset(s + 1, 'x', strLen - 2);
+    s[strLen - 1] = '"';
+    CHECK(JS::Evaluate(cx, global, opts, s, strLen));
+    CHECK(JS::CompileFunction(cx, global, opts, "f", 0, nullptr, s, strLen));
+    JS_free(cx, s);
+
+    return true;
+}
+END_TEST(testBug795104)
+
+static const char *const simpleSource = "var x = 4;";
+
+BEGIN_TEST(testScriptSourceReentrant)
+{
+    JS::CompileOptions opts(cx);
+    bool match = false;
+    JS_SetNewScriptHook(rt, NewScriptHook, &match);
+    CHECK(JS::Evaluate(cx, global, opts, simpleSource, strlen(simpleSource)));
+    CHECK(match);
+    JS_SetNewScriptHook(rt, nullptr, nullptr);
+
+    return true;
+}
+
+static void
+NewScriptHook(JSContext *cx, const char *fn, unsigned lineno,
+              JSScript *script, JSFunction *fun, void *data)
+{
+    if (!JS_StringEqualsAscii(cx, script->sourceData(cx), simpleSource, (bool *)data))
+        *((bool *)data) = false;
+}
+END_TEST(testScriptSourceReentrant)