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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#ifndef CLASSCOMPILER_H
#define CLASSCOMPILER_H
#include <string>
#include <istream>
#include <utility>
#include <vector>
#include <algorithm>
#include <map>
namespace icinga
{
struct ClassDebugInfo
{
std::string path;
int first_line;
int first_column;
int last_line;
int last_column;
};
enum FieldAccessorType
{
FTGet,
FTSet,
FTDefault,
FTTrack,
FTNavigate
};
struct FieldAccessor
{
FieldAccessorType Type;
std::string Accessor;
bool Pure;
FieldAccessor(FieldAccessorType type, std::string accessor, bool pure)
: Type(type), Accessor(std::move(accessor)), Pure(pure)
{ }
};
/* keep this in sync with lib/base/type.hpp */
enum FieldAttribute
{
FAEphemeral = 1,
FAConfig = 2,
FAState = 4,
FAEnum = 8,
FAGetProtected = 16,
FASetProtected = 32,
FANoStorage = 64,
FALoadDependency = 128,
FARequired = 256,
FANavigation = 512,
FANoUserModify = 1024,
FANoUserView = 2048,
FADeprecated = 4096,
FAGetVirtual = 8192,
FASetVirtual = 16384,
FAActivationPriority = 32768,
FASignalWithOldValue = 65536,
};
struct FieldType
{
bool IsName{false};
std::string TypeName;
int ArrayRank{0};
inline std::string GetRealType() const
{
if (ArrayRank > 0)
return "Array::Ptr";
if (IsName)
return "String";
return TypeName;
}
inline std::string GetArgumentType() const
{
std::string realType = GetRealType();
if (realType == "bool" || realType == "double" || realType == "int")
return realType;
else
return "const " + realType + "&";
}
};
struct Field
{
int Attributes{0};
FieldType Type;
std::string Name;
std::string AlternativeName;
std::string GetAccessor;
bool PureGetAccessor{false};
std::string SetAccessor;
bool PureSetAccessor{false};
std::string DefaultAccessor;
std::string TrackAccessor;
std::string NavigationName;
std::string NavigateAccessor;
bool PureNavigateAccessor{false};
int Priority{0};
inline std::string GetFriendlyName() const
{
if (!AlternativeName.empty())
return AlternativeName;
bool cap = true;
std::string name = Name;
for (char& ch : name) {
if (ch == '_') {
cap = true;
continue;
}
if (cap) {
ch = toupper(ch);
cap = false;
}
}
name.erase(
std::remove(name.begin(), name.end(), '_'),
name.end()
);
/* TODO: figure out name */
return name;
}
};
enum TypeAttribute
{
TAAbstract = 1,
TAVarArgConstructor = 2
};
struct Klass
{
std::string Name;
std::string Parent;
std::string TypeBase;
int Attributes;
std::vector<Field> Fields;
std::vector<std::string> LoadDependencies;
int ActivationPriority{0};
};
enum RuleAttribute
{
RARequired = 1
};
struct Rule
{
int Attributes;
bool IsName;
std::string Type;
std::string Pattern;
std::vector<Rule> Rules;
};
enum ValidatorType
{
ValidatorField,
ValidatorArray,
ValidatorDictionary
};
struct Validator
{
std::string Name;
std::vector<Rule> Rules;
};
class ClassCompiler
{
public:
ClassCompiler(std::string path, std::istream& input, std::ostream& oimpl, std::ostream& oheader);
~ClassCompiler();
void Compile();
std::string GetPath() const;
void InitializeScanner();
void DestroyScanner();
void *GetScanner();
size_t ReadInput(char *buffer, size_t max_size);
void HandleInclude(const std::string& path, const ClassDebugInfo& locp);
void HandleAngleInclude(const std::string& path, const ClassDebugInfo& locp);
void HandleImplInclude(const std::string& path, const ClassDebugInfo& locp);
void HandleAngleImplInclude(const std::string& path, const ClassDebugInfo& locp);
void HandleClass(const Klass& klass, const ClassDebugInfo& locp);
void HandleValidator(const Validator& validator, const ClassDebugInfo& locp);
void HandleNamespaceBegin(const std::string& name, const ClassDebugInfo& locp);
void HandleNamespaceEnd(const ClassDebugInfo& locp);
void HandleCode(const std::string& code, const ClassDebugInfo& locp);
void HandleLibrary(const std::string& library, const ClassDebugInfo& locp);
void HandleMissingValidators();
void CodeGenValidator(const std::string& name, const std::string& klass, const std::vector<Rule>& rules, const std::string& field, const FieldType& fieldType, ValidatorType validatorType);
void CodeGenValidatorSubrules(const std::string& name, const std::string& klass, const std::vector<Rule>& rules);
static void CompileFile(const std::string& inputpath, const std::string& implpath,
const std::string& headerpath);
static void CompileStream(const std::string& path, std::istream& input,
std::ostream& oimpl, std::ostream& oheader);
static void OptimizeStructLayout(std::vector<Field>& fields);
private:
std::string m_Path;
std::istream& m_Input;
std::ostream& m_Impl;
std::ostream& m_Header;
void *m_Scanner;
std::string m_Library;
std::map<std::pair<std::string, std::string>, Field> m_MissingValidators;
static unsigned long SDBM(const std::string& str, size_t len);
static std::string BaseName(const std::string& path);
static std::string FileNameToGuardName(const std::string& path);
};
}
#endif /* CLASSCOMPILER_H */
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