b2cb78166e
Not needed at the moment because rule pointers are are always wrapped in shared_ptrs. Still, don't want to forget this if I stopped using shared_ptrs at some point.
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
#ifndef COMPILER_RULES_RULE_H_
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#define COMPILER_RULES_RULE_H_
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#include <string>
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#include <memory>
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namespace tree_sitter {
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namespace rules {
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class Visitor;
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class Rule;
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typedef std::shared_ptr<Rule> rule_ptr;
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class Rule {
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public:
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virtual bool operator==(const Rule& other) const = 0;
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bool operator!=(const Rule& other) const;
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virtual size_t hash_code() const = 0;
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virtual rule_ptr copy() const = 0;
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virtual std::string to_string() const = 0;
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virtual void accept(Visitor *visitor) const = 0;
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virtual ~Rule();
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};
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std::ostream& operator<<(std::ostream& stream, const Rule &rule);
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std::ostream& operator<<(std::ostream& stream, const rule_ptr &rule);
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}
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}
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namespace std {
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template<>
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struct hash<tree_sitter::rules::rule_ptr> {
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size_t operator()(const tree_sitter::rules::rule_ptr &rule) const {
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return typeid(*rule).hash_code() ^ rule->hash_code();
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}
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};
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}
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#endif // COMPILER_RULES_RULE_H_
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