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Make separate PreparedGrammar subclass of Grammar for internal use

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This commit is contained in:
Max Brunsfeld 2014-02-19 13:36:38 -08:00
parent 1d56578a81
commit e87380a8b7
28 changed files with 214 additions and 145 deletions
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9
src/compiler/build_tables/first_set.cpp
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@ -1,5 +1,6 @@
#include "first_set.h"
#include "tree_sitter/compiler.h"
#include "prepared_grammar.h"
#include "rule_can_be_blank.h"
#include "rules/visitor.h"
#include "rules/seq.h"
@ -12,9 +13,9 @@ namespace tree_sitter {
namespace build_tables {
class FirstSetVisitor : Visitor {
set<Symbol> value;
const Grammar grammar;
const PreparedGrammar grammar;
FirstSetVisitor(const Grammar &grammar) : grammar(grammar) {}
FirstSetVisitor(const PreparedGrammar &grammar) : grammar(grammar) {}
set<Symbol> set_union(const set<Symbol> &left, const set<Symbol> &right) {
set<Symbol> result = left;
@ -42,14 +43,14 @@ namespace tree_sitter {
}
public:
static set<Symbol> apply(const rule_ptr rule, const Grammar &grammar) {
static set<Symbol> apply(const rule_ptr rule, const PreparedGrammar &grammar) {
FirstSetVisitor visitor(grammar);
rule->accept(visitor);
return visitor.value;
}
};
set<Symbol> first_set(const rule_ptr &rule, const Grammar &grammar) {
set<Symbol> first_set(const rule_ptr &rule, const PreparedGrammar &grammar) {
return FirstSetVisitor::apply(rule, grammar);
}
}