The lua compiler has no way of knowing if math.si is a function at pre-compilation stage, as you could define a variable: math.si = math.sin
that would make the call valid... because variables have no type, only values, this type of check can not be done un til runtime. On 8/29/06, John Labenski <[EMAIL PROTECTED]> wrote: > On 8/28/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > is it by design, that during pre-compilation the existence of funtions (or > > the correctness of function names) is not checked? > > > > Any mistyped function name is just discovered at runtime and leads to a > > "error running chunk" message. > > > > I would rather expect that the function names are checked sooner, so that > > any mistyped function (not declared or defined with RegisterFunction) is > > reported during pre-compilation. > > I do not think that this is possible or would be overly complicated. > In fact lua itself doesn't do this itself. However if you know how > please suggest a way to do this. There was a lua lint program > somewhere that may be useful. > > Try this simple program: > > a = math.sin(1) > b = math.si(2) > > $ ./lua5.1.exe precomp_test.lua > d:\wxCVS\wxLua\wxLua\bin\lua5.1.exe: precomp_test.lua:2: attempt to > call field 'si' (a nil value) > stack traceback: > precomp_test.lua:2: in main chunk > [C]: ? > > It doesn't check that I've mistyped "math.sin" for line 2 until it's run. > However try this: > > a = math.sin(1) > b = 1math.si(2) > > $ ./lua5.1.exe precomp_test.lua > d:\wxCVS\wxLua\wxLua\bin\lua5.1.exe: precomp_test.lua:2: malformed > number near '1math' > > It does check for gross syntax errors. > > Regards, > John Labenski > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Wxlua-users mailing list > Wxlua-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wxlua-users > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Wxlua-users mailing list Wxlua-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxlua-users
