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style: decouple different uses of item_number

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item_number is used for elements of ritem as well as indices into
ritem which is fairly confusing.  Introduce item_index to represent
indices into ritem.

* src/gram.h (item_index): Introduce it for ritem indices.
* src/closure.h, src/closure.c, src/ielr.c, src/lr0.c,
* src/print-graph.c, src/state.h, src/state.h:
Replace uses of item_number with item_index where appropriate.
This commit is contained in:
Vincent Imbimbo
2020-05-24 11:09:49 -04:00
committed by Akim Demaille
parent dd878d1851
commit 6a1a681fd2
8 changed files with 26 additions and 23 deletions
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src/ielr.c
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@@ -230,7 +230,7 @@ ielr_compute_follow_kernel_items (bitset ritem_sees_lookahead_set,
for (goto_number i = 0; i < ngotos; ++i)
{
size_t nitems = states[from_state[i]]->nitems;
item_number *items = states[from_state[i]]->items;
item_index *items = states[from_state[i]]->items;
for (size_t j = 0; j < nitems; ++j)
/* If this item has this goto and if all subsequent symbols in this
RHS (if any) are nullable nonterminals, then record this item as