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#include "cru/parse/Grammar.hpp"
#include "cru/parse/Symbol.hpp"
#include <algorithm>
namespace cru::parse {
Grammar::Grammar() {}
Grammar::~Grammar() {}
Terminal* Grammar::CreateTerminal(String name) {
auto terminal = new Terminal(this, std::move(name));
terminals_.push_back(terminal);
symbols_.push_back(terminal);
return terminal;
}
Nonterminal* Grammar::CreateNonterminal(String name) {
auto nonterminal = new Nonterminal(this, std::move(name));
nonterminals_.push_back(nonterminal);
symbols_.push_back(nonterminal);
return nonterminal;
}
Production* Grammar::CreateProduction(String name, Nonterminal* left,
std::vector<Symbol*> right) {
Expects(left->GetGrammar() == this);
Expects(std::all_of(right.cbegin(), right.cend(), [this](Symbol* symbol) {
return symbol->GetGrammar() == this;
}));
auto production =
new Production(this, std::move(name), left, std::move(right));
productions_.push_back(production);
return production;
}
} // namespace cru::parse
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