[ nice-Bugs-1173887 ] The following code crashes the compiler

Bugs item #1173887, was opened at 2005-03-31 10:06
Message generated for change (Comment added) made by bonniot
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112788&aid=1173887&group_id=12788

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: The following code crashes the compiler

Initial Comment:
[email protected]

Nice compiler version 0.9.10 (build 2005.02.25, 16:35:29 
UTC)
Compiled using JDK 1.4.2_04
Copyright (C) 2003 Daniel Bonniot
Visit the Nice homepage: http://nice.sourceforge.net

Java(TM) 2 Runtime Environment, Standard Edition 
(build 1.5.0_02-b09)
Java HotSpot(TM) Client VM (build 1.5.0_02-b09, mixed 
mode)

The following code crashes the compiler

package my.program;

class Feature {
	String descr;

	String getDescr() {
		return ?descr;
	}
}

C:\Nice>nicec my.program
nice.lang: parsing
my.program: parsing

An exception has occured in the compiler
Please fill-in a bug report at the following webpage:
http://sourceforge.net/tracker/?
func=add&group_id=12788&atid=112788

Stack trace:
Exception in thread "main" 
bossa.parser.Parser$LookaheadSuccess
        at bossa.parser.Parser.<init>(Parser.java:8321)
        at bossa.parser.JavaccParser.read
(JavaccParser.java:67)
        at bossa.modules.Content.read(Content.java:111)
        at bossa.modules.Content.getDefinitions
(Content.java:86)
        at bossa.modules.Package.read
(Package.java:122)
        at bossa.modules.Package.<init>
(Package.java:88)
        at bossa.modules.Package.make
(Package.java:59)
        at bossa.modules.fun.setMainPackage
(Compilation.nice:89)
        at bossa.modules.Compilation.setMainPackage
(Compilation.nice)
        at nice.tools.compiler.fun.compile
(interface.nice:37)
        at bossa.modules.Compilation.compile
(Compilation.nice)
        at nice.tools.compiler.console.fun.compile
(main.nice:165)
        at nice.tools.compiler.console.dispatch.compile
(Unknown Source)
        at nice.tools.compiler.console.fun.main
(main.nice:199)
        at nice.tools.compiler.console.dispatch.main
(Unknown Source)



----------------------------------------------------------------------

>Comment By: Daniel Bonniot (bonniot)
Date: 2005-03-31 10:46

Message:
Logged In: YES 
user_id=88952

Hi,

There is a syntax error in your program, and a known bug in
the parser generator we use incorrectly reports it.

Instead of:

 return ?descr;

you should just write:

  return descr;

Could you please tell us why you thought a '?' was needed
there? You are not the first person to report this problem,
and we would like to understand if there is a wrong example
or documentation somewhere that suggests this.


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112788&aid=1173887&group_id=12788


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