Stewart Andreason wrote: > If accessing temp1 _is_ faster than .getValue, then at 2 or 3 > accesses, I imagine it becomes faster to do the above?
Yes, it's definitely faster, because there's less work to do. Evaluating the expression "temp1" requires pushing the symbol value (a string) onto the stack, and executing OP_LOCAL which does a hash table lookup to find the value in the namespace list and leave it on the stack for the next bit of code to use. Evaluating "node.getValue()" requires: Pushing the symbol "node" onto the stack Executing OP_LOCAL to look it up Pushing the symbol "getValue" onto the stack Executing OP_MEMBER to look it up in the object Executing OP_CALL to call it as a function Finally (!) calling the C++ property node function Turn the output node into a Nasal object and leave it on the stack. That said, you really don't want to be designing your scripts around raw, low-level performance issues. Write your code to be readable, not blazingly fast. In general "altitude" is more readable than "altNode.getValue()". Andy ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
