1 files changed, 82 insertions, 0 deletions
diff --git a/contrib/byacc/test/err_inherit4.y b/contrib/byacc/test/err_inherit4.y
new file mode 100644
index 0000000..ed788d1
--- /dev/null
+++ b/contrib/byacc/test/err_inherit4.y
@@ -0,0 +1,82 @@
+%locations
+%{
+#include <stdlib.h>
+
+typedef enum {cGLOBAL, cLOCAL} class;
+typedef enum {tREAL, tINTEGER} type;
+typedef char * name;
+
+struct symbol { class c; type t; name id; };
+typedef struct symbol symbol;
+
+struct namelist { symbol *s; struct namelist *next; };
+typedef struct namelist namelist;
+
+extern symbol *mksymbol(type t, class c, name id);
+
+#ifdef YYBISON
+#define YYLEX_DECL() yylex(void)
+#define YYERROR_DECL() yyerror(const char *s)
+#endif
+%}
+
+%token <cval> GLOBAL LOCAL
+%token <tval> REAL INTEGER
+%token <id>   NAME
+
+%type <nlist> declaration namelist(<cval>, <tval>) locnamelist(<tval>)
+%destructor	{ } <nlist>
+%type <cval>  class
+%type <tval>  type
+
+%destructor	{
+		  namelist *p = $$;
+		  while (p != NULL)
+		  { namelist *pp = p;
+		    p = p->next;
+		    free(pp->s); free(pp);
+		  }
+		} <nlist>
+
+%union
+{
+    class	cval;
+    type	tval;
+    namelist *	nlist;
+    name	id;
+}
+
+%start declaration
+
+%%
+declaration: class type namelist($1, $2)
+	{ $$ = $3; }
+	| type locnamelist($1)
+	{ $$ = $2; }
+	;
+
+class	: GLOBAL { $$ = cGLOBAL; }
+	| LOCAL  { $$ = cLOCAL; }
+	;
+
+type	: REAL    { $$ = tREAL; }
+	| INTEGER { $$ = tINTEGER; }
+	;
+
+namelist($c, $t): namelist NAME
+	    { $$->s = mksymbol($t, $c, $2);
+	      $$->next = $1;
+	    }
+	| NAME
+	    { $$->s = mksymbol($t, $c, $1);
+	      $$->next = NULL;
+	    }
+	;
+
+locnamelist($t): namelist
+	{ $$ = $1; @$ = @2; }
+	;
+%%
+
+extern int YYLEX_DECL();
+extern void YYERROR_DECL();