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Also warn about non-used mid-rule values.

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* src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
member.
(symbol_list_new): Adjust.
* src/reader.c (symbol_typed_p): New.
(grammar_rule_check): Use it.
(grammar_midrule_action): Bind a mid-rule LHS to its rule.
Check its rule.
* tests/input.at (AT_CHECK_UNUSED_VALUES): New.
Use it.
* tests/actions.at (Exotic Dollars): Adjust.
This commit is contained in:
Akim Demaille
2006-01-04 09:18:37 +00:00
parent 378f4bd846
commit 8486615972
7 changed files with 115 additions and 42 deletions
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4
src/symlist.c
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@@ -1,6 +1,6 @@
/* Lists of symbols for Bison
Copyright (C) 2002, 2005 Free Software Foundation, Inc.
Copyright (C) 2002, 2005, 2006 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
@@ -38,6 +38,8 @@ symbol_list_new (symbol *sym, location loc)
res->sym = sym;
res->location = loc;
res->mid_rule = NULL;
res->action = NULL;
res->used = false;