traxys/tree-sitter
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Rename next_{terminals,non_terminals} to first_set and follow_sets

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This is to prepare for keeping track of lookahead symbols as part
of computing follow sets
This commit is contained in:
Max Brunsfeld 2014-01-19 01:49:56 -08:00
parent 289992344e
commit 1bf216b796
16 changed files with 172 additions and 116 deletions
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6
src/compiler/build_tables/perform.cpp
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@ -1,7 +1,7 @@
#include "./perform.h"
#include "item.h"
#include "item_set_closure.h"
#include "next_symbols.h"
#include "first_set.h"
#include "item_set_transitions.h"
#include "rules.h"
#include "grammar.h"
@ -84,7 +84,7 @@ namespace tree_sitter {
LexItemSet lex_item_set_for_parse_item_set(const ParseItemSet &parse_item_set) {
LexItemSet result;
for (rules::Symbol symbol : next_terminals(parse_item_set, grammar))
for (rules::Symbol symbol : first_set(parse_item_set, grammar))
result.insert(LexItem(symbol.name, lex_grammar.rule(symbol.name)));
return result;
}
@ -110,7 +110,7 @@ namespace tree_sitter {
lex_grammar(lex_grammar) {};
pair<ParseTable, LexTable> build() {
auto item = ParseItem(ParseTable::START, rules::sym(grammar.start_rule_name), 0);
auto item = ParseItem(ParseTable::START, rules::sym(grammar.start_rule_name), 0, ParseTable::END_OF_INPUT);
ParseItemSet item_set = item_set_closure(ParseItemSet({ item }), grammar);
add_parse_state(item_set);
return pair<ParseTable, LexTable>(parse_table, lex_table);