CodeBlock::m_numParameters counts a function's expected parameter count. Geoff
On May 3, 2010, at 9:21 PM, Nyx wrote: > > Is there any way to get the number of parameters a function has declared from > a JSFunction object? > > I'm asking because I want to get the argument values a function is receiving > in an op_call (in the interpreter). I copied this snipper of code for the > case where a host function is called: > > Register* thisRegister = callFrame->registers() - > RegisterFile::CallFrameHeaderSize - argCount; > ArgList args(thisRegister + 1, argCount - 1); > > The problem is that argCount is the number of arguments passed, and so, if > the function takes 5 arguments and 3 are passed, I'm not getting the first > 2, only the last 3, two of which show up as "undefined". Hence I believe I > would need the number of arguments the function declares takes to properly > compute the register offset. > > -- > View this message in context: > http://old.nabble.com/Function---Property-Names-tp28394250p28442878.html > Sent from the Webkit mailing list archive at Nabble.com. > > _______________________________________________ > webkit-dev mailing list > [email protected] > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev _______________________________________________ webkit-dev mailing list [email protected] http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
