35 lines
976 B
C
35 lines
976 B
C
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#ifndef __TreeSitter__parse_table_builder__
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#define __TreeSitter__parse_table_builder__
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#include <unordered_map>
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#include "grammar.h"
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#include "item_set.h"
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#include "parse_table.h"
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namespace tree_sitter {
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namespace lr {
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class ItemSet;
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struct ItemSetPointerHasher {
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std::size_t operator()(const std::shared_ptr<const ItemSet> &item_set) const {
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return std::hash<ItemSet>()(*item_set);
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}
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};
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class ParseTableBuilder {
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const Grammar grammar;
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ParseTable table;
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std::unordered_map<size_t, size_t> state_indices;
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size_t add_item_set(const std::shared_ptr<const ItemSet> item_set);
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long state_index_for_item_set(const ItemSet &item_set) const;
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public:
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ParseTableBuilder(const Grammar &grammar);
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static ParseTable build_table(const Grammar &grammar);
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void build();
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};
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}
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}
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#endif
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