40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
#include "tree_sitter/compiler.h"
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#include "rules/rule.h"
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namespace tree_sitter {
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using std::string;
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using std::map;
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using std::ostream;
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using rules::rule_ptr;
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Grammar::Grammar(std::string start_rule_name, const map<const string, const rule_ptr> &rules) :
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start_rule_name(start_rule_name),
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rules(rules) {}
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bool Grammar::operator==(const Grammar &other) const {
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if (other.start_rule_name != start_rule_name) return false;
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if (other.rules.size() != rules.size()) return false;
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for (auto pair : rules) {
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auto other_pair = other.rules.find(pair.first);
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if (other_pair == other.rules.end()) return false;
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if (!other_pair->second->operator==(*pair.second)) return false;
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}
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return true;
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}
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ostream& operator<<(ostream &stream, const Grammar &grammar) {
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stream << string("#<grammar");
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stream << string(" rules: {");
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bool started = false;
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for (auto pair : grammar.rules) {
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if (started) stream << string(", ");
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stream << pair.first;
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stream << string(" => ");
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stream << pair.second;
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started = true;
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}
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return stream << string("}>");
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}
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}
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