zeek/src/script_opt/CPP/Util.h

47 lines
1.4 KiB
C++

// See the file "COPYING" in the main distribution directory for copyright.
// Utility functions for compile-to-C++ compiler.
#pragma once
#include "zeek/script_opt/ProfileFunc.h"
namespace zeek::detail
{
// Conversions to strings.
inline std::string Fmt(int i)
{
return std::to_string(i);
}
inline std::string Fmt(p_hash_type u)
{
return std::to_string(u) + "ULL";
}
extern std::string Fmt(double d);
// Returns the prefix for the scoping used by the compiler.
extern std::string scope_prefix(const std::string& scope);
// Same, but for scopes identified with numbers.
extern std::string scope_prefix(int scope);
// True if the given function is compilable to C++. If it isn't, and
// the second argument is non-nil, then on return it points to text
// explaining why not.
extern bool is_CPP_compilable(const ProfileFunc* pf, const char** reason = nullptr);
// Helper utilities for file locking, to ensure that hash files
// don't receive conflicting writes due to concurrent compilations.
extern void lock_file(const std::string& fname, FILE* f);
extern void unlock_file(const std::string& fname, FILE* f);
// For the given byte array / string, returns a version expanded
// with escape sequences in order to represent it as a C++ string.
extern std::string CPPEscape(const char* b, int len);
inline std::string CPPEscape(const char* s)
{
return CPPEscape(s, strlen(s));
}
} // zeek::detail