Duplicate members in C runtime with imports: duplicate member 'g'

[klephron]

Steps to reproduce

// Option.g
grammar Option;

options {
  language=C;
}

import Option2, Option3;

source
  : source_item+
  ;

// Option2.g
parser grammar Option2;

source_item
  : test
  ;

// Option3.g

parser grammar Option3;

test
  : 'a'
  ;

Generate C code:

java -jar antlr-complete-3.5.3.jar Option.g

In OptionParser.h struct elements have duplicated names:

// OptionParser.h

struct OptionParser_Ctx_struct
{
    pANTLR3_PARSER   pParser;
	pOption_Option2	g;
	pOption_Option3	g;

  ...
};

Expected behavior

No duplicated names.

Like when using Java runtime:

@SuppressWarnings("all")
public class OptionParser extends Parser {
	// delegates
	public Option_Option2 gOption2;
	public Option_Option3 gOption3;
	public Parser[] getDelegates() {
		return new Parser[] {gOption2, gOption3};
	}
	...
}

Versions

Java: openjdk 17.0.12 2024-07-16
ANTLR3: 3.5.3