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symbols: improve symbol aliasing

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Rather than having duplicate info in the symbol and the alias that has
to be resolved later on, both the symbol and the alias have a common
pointer to a separate structure containing this info.

* src/symtab.h (sym_content): New structure.
* src/symtab.c (sym_content_new, sym_content_free, symbol_free): New

* src/AnnotationList.c, src/conflicts.c, src/gram.c, src/gram.h,
* src/graphviz.c, src/ielr.c, src/output.c, src/parse-gram.y, src/print.c
* src/print-xml.c, src/print_graph.c, src/reader.c, src/reduce.c,
* src/state.h, src/symlist.c, src/symtab.c, src/symtab.h, src/tables.c:
Adjust.

* tests/input.at: Fix expectations (order changes).
This commit is contained in:
Valentin Tolmer
2013-07-31 11:51:59 +02:00
committed by Akim Demaille
parent c4aa4ff541
commit a728075710
18 changed files with 262 additions and 267 deletions
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4
src/ielr.c
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@@ -424,7 +424,7 @@ ielr_item_has_lookahead (state *s, symbol_number lhs, size_t item,
if (item_number_is_rule_number (ritem[s->items[item] - 2]))
{
state **predecessor;
aver (lhs != accept->number);
aver (lhs != accept->content->number);
for (predecessor = predecessors[s->number];
*predecessor;
++predecessor)
@@ -580,7 +580,7 @@ typedef struct state_list {
static void
ielr_compute_goto_follow_set (bitsetv follow_kernel_items,
bitsetv always_follows, state_list *s,
symbol *n, bitset follow_set)
sym_content *n, bitset follow_set)
{
goto_number n_goto = map_goto (s->lr0Isocore->state->number, n->number);
bitset_copy (follow_set, always_follows[n_goto]);