[tcljava-dev] Re: tcljava compiler

[Martti T. <ma...@da...>]

tcl...@li... wrote:

The only minor problem so far is that the "-readyvar" option on
 >> TJC::compile never returns a result in the server.

 > Exception in thread "TJCThread service" java.lang.NoSuchMethodError:

 >This is a binary compat issue with a version of the compiler that you 
 >installed already.
 >The following should fix the problem:
 >
 >make clean
 >make all
 >make install
 >rm -rf tjc2
 >make tjc2
 >make install

Thank you. I'll remember to make clean in the future.
I'll now post a simple example of my problem with the -readyvar option.
--------
/* Test2 */
import tcl.lang.*;
public class Test2 {
     public static void main(String[] args) {
	try {
	    Interp interp = new Interp();
	    interp.eval("source [pwd]/unknown.tcl");
	    interp.eval("test");
	} catch ( Exception e ) {
	    e.printStackTrace();
	}
     }
}
----unknown.tcl----
package require TJC
proc unknown { args } {
     set command [lindex $args 0]
     source [pwd]/${command}.tcl
     set compile_ready NOT
     TJC::compile $command -readyvar compile_ready
     vwait compile_ready
     if { ! [string equal [string range $compile_ready 0 1] "OK"] } {
	puts "Compilation failed on $args ($compile_ready)"
	return
     } else {
	return [eval $args]
     }
}
-------
The ouput is "Compilation failed on test (NOT)". If I don't set the 
variable compile_ready then it is undefined. The compiler runs correctly 
and vwait takes 6 seconds just as in a direct compile but the -readyvar 
variable is never set. In a more complex example the unknown proc 
running ignores the wait and seems to compile as it goes along and the 
proc execution speeds up considerably after a while. However I suspect 
it is dangerous to allow the compiler to replace procs from another 
thread while the interpreter is executing the source proc without 
waiting for the compile to finish.

Cheers
-- 
Martti Tienhaara (ma...@da...)
DASH Software Ltd.