diff options
| -rw-r--r-- | Parser/parser.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Parser/parser.c b/Parser/parser.c index e0b3530..294c534 100644 --- a/Parser/parser.c +++ b/Parser/parser.c @@ -96,8 +96,6 @@ newparser(g, start) ps->p_grammar = g; ps->p_tree = newnode(start); if (ps->p_tree == NULL) { - if (ps->p_tree != NULL) - DEL(ps->p_tree); /* XXX freeing a node!?! */ DEL(ps); return NULL; } @@ -110,6 +108,9 @@ void delparser(ps) parser_state *ps; { + /* NB If you want to save the parse tree, + you must set p_tree to NULL before calling delparser! */ + freenode(ps->p_tree); DEL(ps); } |