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#pragma once
#include <cstdint>
#include <filesystem>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>
namespace Hsdbg
{
enum class PpKind : uint8_t
{
Identifier,
Number,
String,
Char,
Punct,
};
struct PpToken
{
PpKind kind = PpKind::Identifier;
std::string text;
std::vector<std::string> hide;
};
struct MacroDef
{
std::string name;
bool function_like = false;
bool variadic = false;
std::vector<std::string> params;
std::vector<PpToken> body;
};
class MacroTable
{
public:
auto clear() -> void;
auto build(const std::vector<std::string>& lines,
const std::filesystem::path& base_dir) -> void;
auto find(std::string_view name) const -> const MacroDef*;
auto empty() const -> bool { return m_macros.empty(); }
auto size() const -> size_t { return m_macros.size(); }
auto revision() const -> uint64_t { return m_revision; }
private:
auto scan_lines(const std::vector<std::string>& lines,
const std::filesystem::path& base_dir, int depth,
std::vector<std::filesystem::path>& seen) -> void;
auto scan_path(const std::filesystem::path& path, int depth,
std::vector<std::filesystem::path>& seen) -> void;
std::unordered_map<std::string, MacroDef> m_macros;
uint64_t m_revision = 0;
};
struct MacroExpansion
{
std::vector<std::string> levels;
std::vector<std::vector<std::string>> expanded;
auto fully_expanded() const -> bool { return m_reached_fixpoint; }
bool m_reached_fixpoint = true;
};
auto expand_stages(const MacroTable& table, std::string_view input,
int max_levels = 64) -> MacroExpansion;
}
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