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//===- InstallAPI/Context.h -------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_INSTALLAPI_CONTEXT_H
#define LLVM_CLANG_INSTALLAPI_CONTEXT_H
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/InstallAPI/HeaderFile.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/TextAPI/InterfaceFile.h"
namespace clang {
namespace installapi {
class FrontendRecordsSlice;
/// Struct used for generating validating InstallAPI.
/// The attributes captured represent all necessary information
/// to generate TextAPI output.
struct InstallAPIContext {
/// Library attributes that are typically passed as linker inputs.
llvm::MachO::RecordsSlice::BinaryAttrs BA;
/// All headers that represent a library.
HeaderSeq InputHeaders;
/// Active language mode to parse in.
Language LangMode = Language::ObjC;
/// Active header access type.
HeaderType Type = HeaderType::Unknown;
/// Active TargetSlice for symbol record collection.
std::shared_ptr<FrontendRecordsSlice> Slice;
/// FileManager for all I/O operations.
FileManager *FM = nullptr;
/// DiagnosticsEngine for all error reporting.
DiagnosticsEngine *Diags = nullptr;
/// File Path of output location.
llvm::StringRef OutputLoc{};
/// What encoding to write output as.
llvm::MachO::FileType FT = llvm::MachO::FileType::TBD_V5;
/// Populate entries of headers that should be included for TextAPI
/// generation.
void addKnownHeader(const HeaderFile &H);
/// Record visited files during frontend actions to determine whether to
/// include their declarations for TextAPI generation.
///
/// \param FE Header that is being parsed.
/// \param PP Preprocesser used for querying how header was imported.
/// \return Access level of header if it should be included for TextAPI
/// generation.
std::optional<HeaderType> findAndRecordFile(const FileEntry *FE,
const Preprocessor &PP);
private:
using HeaderMap = llvm::DenseMap<const FileEntry *, HeaderType>;
// Collection of parsed header files and their access level. If set to
// HeaderType::Unknown, they are not used for TextAPI generation.
HeaderMap KnownFiles;
// Collection of expected header includes and the access level for them.
llvm::DenseMap<StringRef, HeaderType> KnownIncludes;
};
} // namespace installapi
} // namespace clang
#endif // LLVM_CLANG_INSTALLAPI_CONTEXT_H
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