tree-sitter/src/rules/choice.cpp

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2013-11-07 13:24:01 -08:00
#include "choice.h"
#include "transition_map.h"
namespace tree_sitter {
namespace rules {
Choice::Choice(rule_ptr left, rule_ptr right) : left(left), right(right) {};
TransitionMap<Rule> Choice::transitions() const {
auto result = left->transitions();
result.merge(right->transitions(), [&](rule_ptr left, rule_ptr right) -> rule_ptr {
return rule_ptr(new Choice(left, right));
});
return result;
}
bool Choice::operator==(const Rule &rule) const {
const Choice *other = dynamic_cast<const Choice *>(&rule);
return (other != NULL) && (*other->left == *left) && (*other->right == *right);
}
std::string Choice::to_string() const {
return std::string("(choice ") + left->to_string() + " " + right->to_string() + ")";
}
}
}