FileHandle.h

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// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <cstdio>
#include <utility>
 
#include "mini-llvm/utils/Compiler.h"
#include "mini-llvm/utils/Path.h"
#include "mini-llvm/utils/SystemString.h"
 
namespace mini_llvm {
 
class MINI_LLVM_EXPORT FileHandle {
public:
    FileHandle() = default;
 
    explicit FileHandle(FILE *handle) : handle_(handle) {}
 
    FileHandle(const Path &path, const SystemString &mode);
 
    ~FileHandle();
 
    FileHandle(const FileHandle &) = delete;
 
    FileHandle(FileHandle &&other) noexcept {
        swap(other);
    }
 
    FileHandle &operator=(FileHandle other) noexcept {
        swap(other);
        return *this;
    }
 
    explicit operator bool() const {
        return handle_;
    }
 
    FILE *get() {
        return handle_;
    }
 
    const FILE *get() const {
        return handle_;
    }
 
    void open(const Path &path, const SystemString &mode);
 
    void close();
 
    FILE *release();
 
    void swap(FileHandle &other) noexcept {
        std::swap(handle_, other.handle_);
    }
 
private:
    FILE *handle_{};
};
 
inline void swap(FileHandle &lhs, FileHandle &rhs) noexcept {
    lhs.swap(rhs);
}
 
} // namespace mini_llvm