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Attaching lineno to buckets is stupid, since only one copy of each

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symbol is kept, only the line of the first occurrence is kept too.
* src/symtab.h, src/symtab.c (bucket): Remove the line member.
* src/reader.c (rline_allocated): Remove, unused.
(symbol_list): Have a `line' member.
(symbol_list_new): New.
(readgram): Use it.
* src/print.c (print_grammar): Output the rule line numbers.
* tests/regression.at (Solved SR Conflicts)
(Unresolved SR Conflicts): Adjust.
Reported by Hans Aberg.
This commit is contained in:
Akim Demaille
2001-11-23 14:03:43 +00:00
parent 4b0979fcf3
commit a9f37dee0c
6 changed files with 52 additions and 35 deletions
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49
src/reader.c
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@@ -34,13 +34,11 @@
#include "reader.h"
#include "conflicts.h"
/* Number of slots allocated (but not necessarily used yet) in `rline' */
static int rline_allocated;
typedef struct symbol_list
{
struct symbol_list *next;
bucket *sym;
int line;
bucket *ruleprec;
}
symbol_list;
@@ -64,6 +62,19 @@ static int lastprec;
static bucket *errtoken;
static bucket *undeftoken;
symbol_list *
symbol_list_new (bucket *sym)
{
symbol_list *res = XMALLOC (symbol_list, 1);
res->next = NULL;
res->sym = sym;
res->line = lineno;
res->ruleprec = NULL;
return res;
}
/*===================\
@@ -121,7 +132,7 @@ read_signed_integer (FILE *stream)
`--------------------------------------------------------------*/
static char *
get_type_name (int n, symbol_list * rule)
get_type_name (int n, symbol_list *rule)
{
int i;
symbol_list *rp;
@@ -539,7 +550,8 @@ parse_token_decl (symbol_class what_is, symbol_class what_is_not)
else
{
complain (_("`%s' is invalid in %s"),
token_buffer, (what_is == token_sym) ? "%token" : "%nterm");
token_buffer,
(what_is == token_sym) ? "%token" : "%nterm");
skip_to_char ('%');
}
}
@@ -1357,8 +1369,7 @@ readgram (void)
nrules++;
nitems++;
p = XCALLOC (symbol_list, 1);
p->sym = lhs;
p = symbol_list_new (lhs);
crule1 = p1;
if (p1)
@@ -1420,27 +1431,25 @@ readgram (void)
non-terminal. */
if (action_flag)
{
bucket *sdummy;
/* Since the action was written out with this rule's
number, we must give the new rule this number by
inserting the new rule before it. */
/* Make a dummy nonterminal, a gensym. */
sdummy = gensym ();
bucket *sdummy = gensym ();
/* Make a new rule, whose body is empty,
before the current one, so that the action
just read can belong to it. */
nrules++;
nitems++;
p = XCALLOC (symbol_list, 1);
p = symbol_list_new (sdummy);
if (crule1)
crule1->next = p;
else
grammar = p;
p->sym = sdummy;
crule1 = XCALLOC (symbol_list, 1);
/* End of the rule. */
crule1 = symbol_list_new (NULL);
crule1->next = crule;
p->next = crule1;
@@ -1448,8 +1457,7 @@ readgram (void)
/* Insert the dummy generated by that rule into this
rule. */
nitems++;
p = XCALLOC (symbol_list, 1);
p->sym = sdummy;
p = symbol_list_new (sdummy);
p1->next = p;
p1 = p;
@@ -1459,8 +1467,7 @@ readgram (void)
if (t == tok_identifier)
{
nitems++;
p = XCALLOC (symbol_list, 1);
p->sym = symval;
p = symbol_list_new (symval);
p1->next = p;
p1 = p;
}
@@ -1474,7 +1481,7 @@ readgram (void)
} /* end of read rhs of rule */
/* Put an empty link in the list to mark the end of this rule */
p = XCALLOC (symbol_list, 1);
p = symbol_list_new (NULL);
p1->next = p;
p1 = p;
@@ -1855,8 +1862,6 @@ packgram (void)
int ruleno;
symbol_list *p;
bucket *ruleprec;
ritem = XCALLOC (short, nitems + 1);
rule_table = XCALLOC (rule_t, nrules) - 1;
@@ -1866,10 +1871,10 @@ packgram (void)
p = grammar;
while (p)
{
bucket *ruleprec = p->ruleprec;
rule_table[ruleno].lhs = p->sym->value;
rule_table[ruleno].rhs = itemno;
rule_table[ruleno].line = p->sym->line;
ruleprec = p->ruleprec;
rule_table[ruleno].line = p->line;
p = p->next;
while (p && p->sym)