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Bug 422286: fix accounting of array length when slicing dense arrays. r=mrbkap, a=mconnor.
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@ -2478,7 +2478,7 @@ array_slice(JSContext *cx, uintN argc, jsval *vp)
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if (begin > end)
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begin = end;
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if (OBJ_IS_DENSE_ARRAY(cx, obj)) {
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if (OBJ_IS_DENSE_ARRAY(cx, obj) && end <= ARRAY_DENSE_LENGTH(obj)) {
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nobj = js_NewArrayObject(cx, end - begin, obj->dslots + begin);
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if (!nobj)
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return JS_FALSE;
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