Wrong Function’s Caller in Opera

Maybe there is a bug in javascript engine in opera browser: It will optimize a function if it just calling other function, The second function’s caller will be point to itself. I wrote a sample:

function BB(){
document.write( BB.caller.toString() );

function AA(){
BB.apply( this , arguments );

function CALLAA(){
AA.apply( this , arguments )


It should write “function AA(){}” but write “function BB(){}” in error.Just write anything in the function will correct it.

I test in Opera 12.14.

Notice that do not open the Dragonfly(Debugger), Everything is okay if you open it.I think the reason is the browser will stop optimizing in debug mode.

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