Revision Difference
jit.util.funck#511464
<function name="util.funck" parent="jit" type="libraryfunc">⤶
<description>⤶
Gets a constant at a certain index in a function.⤶
<warning>This function isn't officially documented on LuJIT wiki, use it at your own risk.</warning>⤶
<note>Numbers constants goes from 0 (included) to n-1, n being the value of nconsts in <page>jit.util.funcinfo</page> in other words, the consts goes from (nconsts-1) to -n</note>⤶
<note>This function only works for Lua defined functions.</note>⤶
</description>⤶
<realm>Shared and Menu</realm>⤶
<args>⤶
<arg name="func" type="function">Function to get constant from</arg>⤶
<arg name="index" type="number">Constant index (counting down from the top of the function at -1)</arg>⤶
</args>⤶
<rets>⤶
<ret name="" type="any">The constant found.⤶
⤶
<note>This will return a <page>proto</page> for functions that are created inside the target function - see Example 2.</note></ret>⤶
</rets>⤶
</function>⤶
⤶
<example>⤶
<description>This code demonstrates how to get a constant in a function.</description>⤶
<code>⤶
function bob()⤶
print("hi")⤶
end⤶
⤶
print(jit.util.funck(bob, -1))⤶
print(jit.util.funck(bob, -2))⤶
</code>⤶
<output>⤶
print&lt;br&gt;⤶
hi⤶
</output>⤶
⤶
</example>⤶
⤶
⤶
<example>⤶
<description>Demonstrates how a function created inside of the accessed function will be a <page>proto</page>s when used with this function.</description>⤶
<code>⤶
local function foo()⤶
local function bar()⤶
end ⤶
end⤶
⤶
print( type( jit.util.funck( foo, -1 ) ) )⤶
</code>⤶
<output>proto</output>⤶
⤶
</example>
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