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jit.util.funcuvname#511463

<function name="util.funcuvname" parent="jit" type="libraryfunc">⤶ <description>⤶ Does the exact same thing as debug.getupvalue except it only returns the name, not the name and the object. The upvalue indexes also start at 0 rather than 1, so doing jit.util.funcuvname(func, 0) will get you the same name as debug.getupvalue(func, 1)⤶ <warning>This function isn't officially documented on LuJIT wiki, use it at your own risk.</warning>⤶ </description>⤶ <realm>Shared and Menu</realm>⤶ <args>⤶ <arg name="func" type="function">Function to get the upvalue indexed from</arg>⤶ <arg name="index" type="number">The upvalue index, starting from 0</arg>⤶ </args>⤶ <rets>⤶ <ret name="" type="string">The function returns nil if there is no upvalue with the given index, otherwise the name of the upvalue is returned</ret>⤶ </rets>⤶ </function>⤶ ⤶ <example>⤶ <description>Get the name of the first upvalue in hook.Add</description>⤶ <code>⤶ local a = jit.util.funcuvname(hook.Add, 0)⤶ local b = debug.getupvalue(hook.Add, 1)⤶ print(a)⤶ print(a == b)⤶ </code>⤶ <output>⤶ ⤶ ```⤶ isfunction⤶ true⤶ ```⤶ ⤶ </output>⤶ ⤶ </example>

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