In CF9 doc: Defining components and functions in CFScript, it says:

/** 
*Comment text, treated as a hint. 
*Set metadata, including, optionally, attributes, in the last entries 
*in the comment block, as follows: 
*@metadataName metadataValue 
... 
*/ 
access returnType function functionName(arg1Type arg1Name="defaultValue1" 
arg1Attribute="attributeValue...,arg2Type 
arg2Name="defaultValue2" arg2Attribute="attributeValue...,...) 
functionAttributeName="attributeValue" ... { 
body contents 
}

How do you specify arg1Attribute? I tried this:

public void function setFirstname(string firstname="" displayName="first name"){}

but it does NOT work.

Also, how do you translate this to script-style?

<cffunction name="setPerson">
  <cfargument name="person" type="com.Person"/>
</cffunction>

I tried:

function setPerson(com.Person person){}

and it does NOT work either. "You cannot use a variable reference with "." operators in this context" it says.