Description
JSVAL_UNLOCK is a deprecated feature that is supported only for backward compatibility with existing applications. To unlock a value, use local roots with JS_RemoveRoot.JSVAL_UNLOCK unlocks a previously locked JS value, v, so it can be garbage collected. v is a JS object, string, or double value.
JSVAL_UNLOCK determine if v is an object, string, or double value, and if it is, it unlocks the value. If unlocking is successful, or v is not affected by garbage collection because it is not an object, string, or double value, JSVAL_UNLOCK evaluates to true. Otherwise JSVAL_UNLOCK evaluates to false.
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