Symbol.h

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// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <cstddef>
#include <functional>
#include <string>
 
#include "mini-llvm/utils/HashCombine.h"
 
namespace mini_llvm::ir {
 
struct Symbol {
    enum class Scope {
        kGlobal,
        kLocal,
    };
 
    Scope scope;
    std::string name;
};
 
inline bool operator==(const Symbol &lhs, const Symbol &rhs) {
    return lhs.scope == rhs.scope && lhs.name == rhs.name;
}
 
} // namespace mini_llvm::ir
 
template <>
struct std::hash<mini_llvm::ir::Symbol> {
    constexpr size_t operator()(const mini_llvm::ir::Symbol &symbol) const noexcept {
        size_t seed = 0;
 
        mini_llvm::hash_combine(seed, symbol.scope);
        mini_llvm::hash_combine(seed, symbol.name);
 
        return seed;
    }
};