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Rename close_item_set -> item_set_closure

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This commit is contained in:
Max Brunsfeld 2014-01-12 09:13:53 -08:00
parent 9231fa6095
commit a21c42ca85
5 changed files with 17 additions and 20 deletions
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35
src/compiler/build_tables/close_item_set.cpp
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@ -1,35 +0,0 @@
#include "close_item_set.h"
#include "./next_symbols.h"
#include "grammar.h"
#include "item.h"
#include <vector>
using std::vector;
namespace tree_sitter {
namespace build_tables {
static bool vector_contains(vector<Item> items, build_tables::Item item) {
return (std::find(items.begin(), items.end(), item) != items.end());
}
static void add_item(vector<Item> &vector, const Item &item, const Grammar &grammar) {
if (!vector_contains(vector, item)) {
vector.push_back(item);
for (rules::Symbol rule : next_non_terminals(item, grammar)) {
Item next_item = Item::at_beginning_of_rule(rule.name, grammar);
add_item(vector, next_item, grammar);
}
}
}
static vector<Item> closure_in_grammar(const Item &item, const Grammar &grammar) {
vector<Item> result;
add_item(result, item, grammar);
return result;
}
ItemSet close_item_set(const ItemSet &item_set, const Grammar &grammar) {
return ItemSet(closure_in_grammar(*item_set.begin(), grammar));
}
}
}