62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
#ifndef COMPILER_SYNTAX_GRAMMAR_H_
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#define COMPILER_SYNTAX_GRAMMAR_H_
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#include <vector>
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#include <string>
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#include <set>
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#include "compiler/rule.h"
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#include "compiler/grammar.h"
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namespace tree_sitter {
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struct ProductionStep {
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rules::Symbol symbol;
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int precedence;
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rules::Associativity associativity;
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rules::Alias alias;
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bool operator==(const ProductionStep &) const;
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bool operator!=(const ProductionStep &) const;
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bool operator<(const ProductionStep &) const;
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};
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struct Production {
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std::vector<ProductionStep> steps;
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int dynamic_precedence = 0;
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bool operator==(const Production &) const;
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inline ProductionStep &back() { return steps.back(); }
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inline const ProductionStep &back() const { return steps.back(); }
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inline bool empty() const { return steps.empty(); }
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inline size_t size() const { return steps.size(); }
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inline const ProductionStep &operator[](int i) const { return steps[i]; }
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inline const ProductionStep &at(int i) const { return steps[i]; }
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inline std::vector<ProductionStep>::const_iterator begin() const { return steps.begin(); }
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inline std::vector<ProductionStep>::const_iterator end() const { return steps.end(); }
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};
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struct SyntaxVariable {
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std::string name;
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VariableType type;
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std::vector<Production> productions;
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};
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struct ExternalToken {
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std::string name;
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VariableType type;
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rules::Symbol corresponding_internal_token;
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bool operator==(const ExternalToken &) const;
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};
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struct SyntaxGrammar {
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std::vector<SyntaxVariable> variables;
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std::set<rules::Symbol> extra_tokens;
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std::set<std::set<rules::Symbol>> expected_conflicts;
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std::vector<ExternalToken> external_tokens;
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std::set<rules::Symbol> variables_to_inline;
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};
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} // namespace tree_sitter
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#endif // COMPILER_SYNTAX_GRAMMAR_H_
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