https://stockhub.co/index.php?action=history&feed=atom&title=Module%3ACallAssert%2Fdoc 2026-04-16T18:56:39Z Revision history for this page on the wiki MediaWiki 1.43.5 https://stockhub.co/index.php?title=Module:CallAssert/doc&diff=135458&oldid=prev 2021-07-05T21:25:12Z

<p>Removed unnecessary supercategory</p> <p><b>New page</b></p><div>{{Module rating|r}}<br /> {{used in system}}<br /> This [[Help:Lua metamodules|metamodule]] provides function &#039;&#039;&#039;callAssert&#039;&#039;&#039;, which simplifies error checking by throwing an error if a given function returns nil or false. This is similar to the built-in function [[mw:LUAREF#assert|assert]], but unlike it, callAssert itself calls the function, whose return value is to be checked. This allows it to include the function name and argument values in the error message.<br /> <br /> == Usage ==<br /> <br /> local callAssert = require(&#039;Module:CallAssert&#039;)<br /> local result1, result2, etc = &#039;&#039;&#039;callAssert(&#039;&#039;func&#039;&#039;, {{&#039;}}&#039;&#039;funcName&#039;&#039;{{&#039;}}, ...)&#039;&#039;&#039;<br /> <br /> &lt;code&gt;callAssert&lt;/code&gt; calls &lt;code&gt;&#039;&#039;func&#039;&#039;(...)&lt;/code&gt; and checks if the first returned value evaluates to true. If it does, then it returns all the returned values. If not, it throws an error with a message in the form &lt;code&gt;{{&#039;}}&#039;&#039;funcName&#039;&#039;(&#039;&#039;argument_values&#039;&#039;) failed&#039;&lt;/code&gt;.<br /> &lt;includeonly&gt;{{#ifeq:{{SUBPAGENAME}}|sandbox | |<br /> [[Category:Error-handling modules]]<br /> }}&lt;/includeonly&gt;</div>

imported>Alexiscoutinho