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jit.util.funcinfo#511465

<function name="util.funcinfo" parent="jit" type="libraryfunc">⤶ <description>⤶ Retrieves LuaJIT information about a given function, similarly to <page>debug.getinfo</page>. Possible table fields:⤶ * linedefined: as for <page>debug.getinfo</page>⤶ * lastlinedefined: as for <page>debug.getinfo</page>⤶ * params: the number of parameters the function takes⤶ * stackslots: the number of stack slots the function's local variable use⤶ * upvalues: the number of upvalues the function uses⤶ * bytecodes: the number of bytecodes it the compiled function⤶ * gcconsts: the number of garbage collectable constants⤶ * nconsts: the number of lua_Number (double) constants⤶ * children: Boolean representing whether the function creates closures⤶ * currentline: as for <page>debug.getinfo</page>⤶ * isvararg: if the function is a vararg function⤶ * source: as for <page>debug.getinfo</page>⤶ * loc: a string describing the source and currentline, like "&amp;lt;source&amp;gt;:&amp;lt;line&amp;gt;"⤶ * ffid: the fast function id of the function (if it is one). In this case only upvalues above and addr below are valid⤶ * addr: the address of the function (if it is not a Lua function). If it's a C function rather than a fast function, only upvalues above is valid*⤶ </description>⤶ <realm>Shared and Menu</realm>⤶ <args>⤶ <arg name="func" type="function">Function or Proto to retrieve info about.</arg>⤶ <arg name="pos" type="number" default="0"></arg>⤶ </args>⤶ <rets>⤶ <ret name="" type="table">Information about the supplied function/proto.</ret>⤶ </rets>⤶ </function>⤶ ⤶ <example>⤶ <description>Demonstrates output of this function.</description>⤶ <code>⤶ PrintTable(jit.util.funcinfo(print))⤶ ⤶ local print = print⤶ _G.print = function(...) print(...) end -- redefine print⤶ ⤶ PrintTable(jit.util.funcinfo(print))⤶ </code>⤶ <output>⤶ ⤶ ```⤶ -- First PrintTable output:⤶ addr = 1773317824⤶ ffid = 25⤶ upvalues = 1⤶ ⤶ -- Second PrintTable output:⤶ linedefined = 1⤶ currentline = 1⤶ params = 0⤶ stackslots = 2⤶ source = @lua_run⤶ lastlinedefined = 1⤶ children = false⤶ upvalues = 1⤶ nconsts = 0⤶ isvararg = true⤶ loc = lua_run:1⤶ bytecodes = 5⤶ gcconsts = 0⤶ ```⤶ ⤶ </output>⤶ ⤶ </example>

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