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#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===- llvm/TextAPI/Record.h - TAPI Record ----------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief Implements the TAPI Record Types.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_TEXTAPI_RECORD_H
#define LLVM_TEXTAPI_RECORD_H
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Casting.h"
#include "llvm/TextAPI/Symbol.h"
#include <string>
namespace llvm {
namespace MachO {
LLVM_ENABLE_BITMASK_ENUMS_IN_NAMESPACE();
class RecordsSlice;
// Defines a list of linkage types.
enum class RecordLinkage : uint8_t {
// Unknown linkage.
Unknown = 0,
// Local, hidden or private extern linkage.
Internal = 1,
// Undefined linkage, it represents usage of external interface.
Undefined = 2,
// Re-exported linkage, record is defined in external interface.
Rexported = 3,
// Exported linkage.
Exported = 4,
};
/// Define Record. They represent API's in binaries that could be linkable
/// symbols.
class Record {
public:
Record() = default;
Record(StringRef Name, RecordLinkage Linkage, SymbolFlags Flags)
: Name(Name), Linkage(Linkage), Flags(mergeFlags(Flags, Linkage)) {}
bool isWeakDefined() const {
return (Flags & SymbolFlags::WeakDefined) == SymbolFlags::WeakDefined;
}
bool isWeakReferenced() const {
return (Flags & SymbolFlags::WeakReferenced) == SymbolFlags::WeakReferenced;
}
bool isThreadLocalValue() const {
return (Flags & SymbolFlags::ThreadLocalValue) ==
SymbolFlags::ThreadLocalValue;
}
bool isData() const {
return (Flags & SymbolFlags::Data) == SymbolFlags::Data;
}
bool isText() const {
return (Flags & SymbolFlags::Text) == SymbolFlags::Text;
}
bool isInternal() const { return Linkage == RecordLinkage::Internal; }
bool isUndefined() const { return Linkage == RecordLinkage::Undefined; }
bool isExported() const { return Linkage >= RecordLinkage::Rexported; }
bool isRexported() const { return Linkage == RecordLinkage::Rexported; }
StringRef getName() const { return Name; }
SymbolFlags getFlags() const { return Flags; }
private:
SymbolFlags mergeFlags(SymbolFlags Flags, RecordLinkage Linkage);
protected:
StringRef Name;
RecordLinkage Linkage;
SymbolFlags Flags;
friend class RecordsSlice;
};
// Defines broadly non-objc records, categorized as variables or functions.
class GlobalRecord : public Record {
public:
enum class Kind : uint8_t {
Unknown = 0,
Variable = 1,
Function = 2,
};
GlobalRecord(StringRef Name, RecordLinkage Linkage, SymbolFlags Flags,
Kind GV)
: Record({Name, Linkage, Flags}), GV(GV) {}
bool isFunction() const { return GV == Kind::Function; }
bool isVariable() const { return GV == Kind::Variable; }
void setKind(const Kind &V) {
if (GV == Kind::Unknown)
GV = V;
}
private:
Kind GV;
};
// Define Objective-C instance variable records.
class ObjCIVarRecord : public Record {
public:
ObjCIVarRecord(StringRef Name, RecordLinkage Linkage)
: Record({Name, Linkage, SymbolFlags::Data}) {}
static std::string createScopedName(StringRef SuperClass, StringRef IVar) {
return (SuperClass + "." + IVar).str();
}
};
template <typename V, typename K = StringRef,
typename std::enable_if<std::is_base_of<Record, V>::value>::type * =
nullptr>
using RecordMap = llvm::MapVector<K, std::unique_ptr<V>>;
// Defines Objective-C record types that have assigned methods, properties,
// instance variable (ivars) and protocols.
class ObjCContainerRecord : public Record {
public:
ObjCContainerRecord(StringRef Name, RecordLinkage Linkage)
: Record({Name, Linkage, SymbolFlags::Data}) {}
ObjCIVarRecord *addObjCIVar(StringRef IVar, RecordLinkage Linkage);
ObjCIVarRecord *findObjCIVar(StringRef IVar) const;
std::vector<ObjCIVarRecord *> getObjCIVars() const;
private:
RecordMap<ObjCIVarRecord> IVars;
};
// Define Objective-C category types. They don't generate linkable symbols, but
// they have assigned ivars that do.
class ObjCCategoryRecord : public ObjCContainerRecord {
public:
ObjCCategoryRecord(StringRef ClassToExtend, StringRef Name)
: ObjCContainerRecord(Name, RecordLinkage::Unknown),
ClassToExtend(ClassToExtend) {}
private:
StringRef ClassToExtend;
};
// Define Objective-C Interfaces or class types.
class ObjCInterfaceRecord : public ObjCContainerRecord {
public:
ObjCInterfaceRecord(StringRef Name, RecordLinkage Linkage,
bool HasEHType = false)
: ObjCContainerRecord(Name, Linkage), HasEHType(HasEHType) {}
bool hasExceptionAttribute() const { return HasEHType; }
bool addObjCCategory(ObjCCategoryRecord *Record);
std::vector<ObjCCategoryRecord *> getObjCCategories() const;
private:
bool HasEHType;
// Non-owning containers of categories that extend the class.
llvm::MapVector<StringRef, ObjCCategoryRecord *> Categories;
};
} // end namespace MachO.
} // end namespace llvm.
#endif // LLVM_TEXTAPI_RECORD_H
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
|
