[antlr-interest] Bug in antlr4

Terence Parr parrt at cs.usfca.edu
Sat Sep 29 16:06:50 PDT 2012


Hi. I just ran and it seems ok:

$ java ExtractInterfaceTool Demo.java
interface IDemo {
	void f(int x, String y);
	int[ ] g(/*no args*/);
	List<Map<String, Integer>>[] h();
}

and with 4.0b1 jar specifically:

$ java -cp .:~/tmp/antlr-4.0b1-complete.jar:$CLASSPATH ExtractInterfaceTool Demo.java
interface IDemo {
	void f(int x, String y);
	int[ ] g(/*no args*/);
	List<Map<String, Integer>>[] h();
}

not sure what is happening. i'm using java 1.6 on mac os x 10.7.5.

Ter
On Sep 21, 2012, at 6:16 AM, Chris Moller wrote:

> I just found what I'm fairly sure is a previously unfound bug in v4. Is 
> there a list for that?  Or just go straight to github bugs?
> 
> FWIW, the bug is from the ExtractInterfaceTool example in the pragprog 
> manual.  Per the manual, the result is supposed to be:
> 
>    interface IDemo {
>    void f(int x, String y);
>    int[ ] g(/*no args*/);
>    List<Map<String, Integer>>[] h();
>    }
> 
> 
> and the actual is:
> 
>    interface IDemo {
>    void f(intx,Stringy);
>    int[] g();
>    List<Map<String,Integer>>[] h();
>    }
> 
> 
> The spaces are missing between the types and the parms of method f().  
> Also, more trivially, the comment from the arg list of g() is missing.
> 
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