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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_CODEGEN_COMPILATIONUNIT_H
#define RCC_CODEGEN_COMPILATIONUNIT_H
#include "rcc/CodeGen/StableID.h"
#include "rcc/Support/Error.h"
#include <cstddef>
#include <functional>
#include <memory>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>
namespace rcc {
class MachineFunction;
class CompilationUnit final {
public:
CompilationUnit();
CompilationUnit(const CompilationUnit &) = delete;
CompilationUnit &operator=(const CompilationUnit &) = delete;
CompilationUnit(CompilationUnit &&) noexcept;
CompilationUnit &operator=(CompilationUnit &&) noexcept;
~CompilationUnit();
[[nodiscard]] Expected<MachineFunction *> createMachineFunction(std::string Name);
[[nodiscard]] std::size_t functionCount() const noexcept {
return Functions.size();
}
[[nodiscard]] MachineFunction *functionAt(std::size_t Index) noexcept;
[[nodiscard]] const MachineFunction *functionAt(std::size_t Index) const noexcept;
[[nodiscard]] MachineFunction *function(std::string_view Name) noexcept;
[[nodiscard]] const MachineFunction *function(std::string_view Name) const noexcept;
[[nodiscard]] MachineFunction *function(MachineFunctionStableID ID) noexcept;
[[nodiscard]] const MachineFunction *function(MachineFunctionStableID ID) const noexcept;
[[nodiscard]] Expected<void> verify() const;
private:
struct StringHash final {
using is_transparent = void; // NOLINT(readability-identifier-naming)
[[nodiscard]] std::size_t operator()(std::string_view Value) const noexcept {
return std::hash<std::string_view>{}(Value);
}
};
std::vector<std::unique_ptr<MachineFunction>> Functions;
std::unordered_map<std::string, std::size_t, StringHash, std::equal_to<>> FunctionNameToIndex;
StableIDGenerator<MachineFunctionStableID> FunctionIDGenerator;
};
} // namespace rcc
#endif // RCC_CODEGEN_COMPILATIONUNIT_H
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