parser: factor the handling of code_props

[bison.git] / src / reader.c

diff --git a/src/reader.c b/src/reader.c
index 107fe9010f008d33b191eee3e144cd8112c7f206..52c0b13983440fca9fcae407645098f8b6a58795 100644 (file)
--- a/src/reader.c
+++ b/src/reader.c
@@ -22,7 +22,6 @@
 #include "system.h"
 
 #include <quote.h>
 #include "system.h"
 
 #include <quote.h>

-#include <quotearg.h>

 
 #include "complain.h"
 #include "conflicts.h"
 
 #include "complain.h"
 #include "conflicts.h"


@@ -60,7 +59,7 @@ void
 grammar_start_symbol_set (symbol *sym, location loc)
 {
   if (start_flag)
 grammar_start_symbol_set (symbol *sym, location loc)
 {
   if (start_flag)

-    complain_at (loc, _("multiple %s declarations"), "%start");
+    complain_at (loc, complaint, _("multiple %s declarations"), "%start");

   else
     {
       start_flag = true;
   else
     {
       start_flag = true;


@@ -129,10 +128,10 @@ record_merge_function_type (int merger, uniqstr type, location declaration_loc)
   aver (merge_function != NULL && merger_find == merger);
   if (merge_function->type != NULL && !UNIQSTR_EQ (merge_function->type, type))
     {
   aver (merge_function != NULL && merger_find == merger);
   if (merge_function->type != NULL && !UNIQSTR_EQ (merge_function->type, type))
     {

-      complain_at (declaration_loc,
+      complain_at (declaration_loc, complaint,

                    _("result type clash on merge function %s: <%s> != <%s>"),
                    quote (merge_function->name), type, merge_function->type);
                    _("result type clash on merge function %s: <%s> != <%s>"),
                    quote (merge_function->name), type, merge_function->type);

-      complain_at (merge_function->type_declaration_location,
+      complain_at (merge_function->type_declaration_location, complaint,

                    _("previous declaration"));
     }
   merge_function->type = uniqstr_new (type);
                    _("previous declaration"));
     }
   merge_function->type = uniqstr_new (type);


@@ -198,9 +197,9 @@ assign_named_ref (symbol_list *p, named_ref *name)
 
   if (name->id == sym->tag)
     {
 
   if (name->id == sym->tag)
     {

-      warn_at (name->loc,
-               _("duplicated symbol name for %s ignored"),
-               quote (sym->tag));
+      complain_at (name->loc, Wother,
+                   _("duplicated symbol name for %s ignored"),
+                   quote (sym->tag));

       named_ref_free (name);
     }
   else
       named_ref_free (name);
     }
   else


@@ -243,7 +242,8 @@ grammar_current_rule_begin (symbol *lhs, location loc,
       ++nvars;
     }
   else if (lhs->class == token_sym)
       ++nvars;
     }
   else if (lhs->class == token_sym)

-    complain_at (loc, _("rule given for %s, which is a token"), lhs->tag);
+    complain_at (loc, complaint, _("rule given for %s, which is a token"),
+                 lhs->tag);

 }
 
 
 }
 
 


@@ -258,7 +258,7 @@ grammar_current_rule_begin (symbol *lhs, location loc,
 static bool
 symbol_should_be_used (symbol_list const *s, bool *midrule_warning)
 {
 static bool
 symbol_should_be_used (symbol_list const *s, bool *midrule_warning)
 {

-  if (symbol_destructor_get (s->content.sym)->code)
+  if (symbol_code_props_get (s->content.sym, destructor)->code)

     return true;
   if ((s->midrule && s->midrule->action_props.is_value_used)
       || (s->midrule_parent_rule
     return true;
   if ((s->midrule && s->midrule->action_props.is_value_used)
       || (s->midrule_parent_rule


@@ -297,14 +297,14 @@ grammar_rule_check (const symbol_list *r)
           const char *rhs_type =
             first_rhs->type_name ? first_rhs->type_name : "";
           if (!UNIQSTR_EQ (lhs_type, rhs_type))
           const char *rhs_type =
             first_rhs->type_name ? first_rhs->type_name : "";
           if (!UNIQSTR_EQ (lhs_type, rhs_type))

-            warn_at (r->location,
-                     _("type clash on default action: <%s> != <%s>"),
-                     lhs_type, rhs_type);
+            complain_at (r->location, Wother,
+                         _("type clash on default action: <%s> != <%s>"),
+                         lhs_type, rhs_type);

         }
       /* Warn if there is no default for $$ but we need one.  */
       else
         }
       /* Warn if there is no default for $$ but we need one.  */
       else

-        warn_at (r->location,
-                 _("empty rule for typed nonterminal, and no action"));
+        complain_at (r->location, Wother,
+                     _("empty rule for typed nonterminal, and no action"));

     }
 
   /* Check that symbol values that should be used are in fact used.  */
     }
 
   /* Check that symbol values that should be used are in fact used.  */


@@ -319,12 +319,11 @@ grammar_rule_check (const symbol_list *r)
             /* The default action, $$ = $1, `uses' both.  */
             && (r->action_props.code || (n != 0 && n != 1)))
           {
             /* The default action, $$ = $1, `uses' both.  */
             && (r->action_props.code || (n != 0 && n != 1)))
           {

-            void (*warn_at_ptr)(location, char const*, ...) =
-              midrule_warning ? midrule_value_at : warn_at;
+            warnings warn_flag = midrule_warning ? Wmidrule_values : Wother;

             if (n)
             if (n)

-              warn_at_ptr (r->location, _("unused value: $%d"), n);
+              complain_at (r->location, warn_flag, _("unused value: $%d"), n);

             else
             else

-              warn_at_ptr (r->location, _("unset value: $$"));
+              complain_at (r->location, warn_flag, _("unset value: $$"));

           }
       }
   }
           }
       }
   }


@@ -334,9 +333,9 @@ grammar_rule_check (const symbol_list *r)
      it for char literals and strings, which are always tokens.  */
   if (r->ruleprec
       && r->ruleprec->tag[0] != '\'' && r->ruleprec->tag[0] != '"'
      it for char literals and strings, which are always tokens.  */
   if (r->ruleprec
       && r->ruleprec->tag[0] != '\'' && r->ruleprec->tag[0] != '"'

-      && !r->ruleprec->declared && !r->ruleprec->prec)
-    warn_at (r->location, _("token for %%prec is not defined: %s"),
-             r->ruleprec->tag);
+      && r->ruleprec->status != declared && !r->ruleprec->prec)
+    complain_at (r->location, Wother,
+                 _("token for %%prec is not defined: %s"), r->ruleprec->tag);

 }
 
 
 }
 
 


@@ -426,7 +425,7 @@ grammar_current_rule_prec_set (symbol *precsym, location loc)
      token.  */
   symbol_class_set (precsym, token_sym, loc, false);
   if (current_rule->ruleprec)
      token.  */
   symbol_class_set (precsym, token_sym, loc, false);
   if (current_rule->ruleprec)

-    complain_at (loc, _("only one %s allowed per rule"), "%prec");
+    complain_at (loc, complaint, _("only one %s allowed per rule"), "%prec");

   current_rule->ruleprec = precsym;
 }
 
   current_rule->ruleprec = precsym;
 }
 


@@ -436,11 +435,13 @@ void
 grammar_current_rule_dprec_set (int dprec, location loc)
 {
   if (! glr_parser)
 grammar_current_rule_dprec_set (int dprec, location loc)
 {
   if (! glr_parser)

-    warn_at (loc, _("%s affects only GLR parsers"), "%dprec");
+    complain_at (loc, Wother, _("%s affects only GLR parsers"),
+                 "%dprec");

   if (dprec <= 0)
   if (dprec <= 0)

-    complain_at (loc, _("%s must be followed by positive number"), "%dprec");
+    complain_at (loc, complaint, _("%s must be followed by positive number"),
+                 "%dprec");

   else if (current_rule->dprec != 0)
   else if (current_rule->dprec != 0)

-    complain_at (loc, _("only one %s allowed per rule"), "%dprec");
+    complain_at (loc, complaint, _("only one %s allowed per rule"), "%dprec");

   current_rule->dprec = dprec;
 }
 
   current_rule->dprec = dprec;
 }
 


@@ -451,9 +452,10 @@ void
 grammar_current_rule_merge_set (uniqstr name, location loc)
 {
   if (! glr_parser)
 grammar_current_rule_merge_set (uniqstr name, location loc)
 {
   if (! glr_parser)

-    warn_at (loc, _("%s affects only GLR parsers"), "%merge");
+    complain_at (loc, Wother, _("%s affects only GLR parsers"),
+                 "%merge");

   if (current_rule->merger != 0)
   if (current_rule->merger != 0)

-    complain_at (loc, _("only one %s allowed per rule"), "%merge");
+    complain_at (loc, complaint, _("only one %s allowed per rule"), "%merge");

   current_rule->merger = get_merge_function (name);
   current_rule->merger_declaration_location = loc;
 }
   current_rule->merger = get_merge_function (name);
   current_rule->merger_declaration_location = loc;
 }


@@ -471,6 +473,8 @@ grammar_current_rule_symbol_append (symbol *sym, location loc,
   p = grammar_symbol_append (sym, loc);
   if (name)
     assign_named_ref(p, name);
   p = grammar_symbol_append (sym, loc);
   if (name)
     assign_named_ref(p, name);

+  if (sym->status == undeclared || sym->status == used)
+    sym->status = needed;

 }
 
 /* Attach an ACTION to the current rule.  */
 }
 
 /* Attach an ACTION to the current rule.  */


@@ -550,7 +554,7 @@ packgram (void)
           /* Don't allow rule_length == INT_MAX, since that might
              cause confusion with strtol if INT_MAX == LONG_MAX.  */
           if (rule_length == INT_MAX)
           /* Don't allow rule_length == INT_MAX, since that might
              cause confusion with strtol if INT_MAX == LONG_MAX.  */
           if (rule_length == INT_MAX)

-              fatal_at (rules[ruleno].location, _("rule is too long"));
+            complain_at (rules[ruleno].location, fatal, _("rule is too long"));

 
           /* item_number = symbol_number.
              But the former needs to contain more: negative rule numbers. */
 
           /* item_number = symbol_number.
              But the former needs to contain more: negative rule numbers. */


@@ -639,7 +643,7 @@ prepare_percent_define_front_end_variables (void)
        default.  */
     muscle_percent_define_default ("lr.type", "lalr");
     lr_type = muscle_percent_define_get ("lr.type");
        default.  */
     muscle_percent_define_default ("lr.type", "lalr");
     lr_type = muscle_percent_define_get ("lr.type");

-    if (0 != strcmp (lr_type, "canonical-lr"))
+    if (STRNEQ (lr_type, "canonical-lr"))

       muscle_percent_define_default ("lr.default-reductions", "most");
     else
       muscle_percent_define_default ("lr.default-reductions", "accepting");
       muscle_percent_define_default ("lr.default-reductions", "most");
     else
       muscle_percent_define_default ("lr.default-reductions", "accepting");


@@ -668,7 +672,7 @@ check_and_convert_grammar (void)
 {
   /* Grammar has been read.  Do some checking.  */
   if (nrules == 0)
 {
   /* Grammar has been read.  Do some checking.  */
   if (nrules == 0)

-    fatal (_("no rules in the input grammar"));
+    complain (fatal, _("no rules in the input grammar"));

 
   /* If the user did not define her ENDTOKEN, do it now. */
   if (!endtoken)
 
   /* If the user did not define her ENDTOKEN, do it now. */
   if (!endtoken)