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//===-- ARCMT.h - ARC Migration Rewriter ------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_ARCMIGRATE_ARCMT_H
#define LLVM_CLANG_ARCMIGRATE_ARCMT_H
#include "clang/ARCMigrate/FileRemapper.h"
#include "clang/Frontend/CompilerInvocation.h"
namespace clang {
class ASTContext;
class DiagnosticClient;
namespace arcmt {
class MigrationPass;
/// \brief Creates an AST with the provided CompilerInvocation but with these
/// changes:
/// -if a PCH/PTH is set, the original header is used instead
/// -Automatic Reference Counting mode is enabled
///
/// It then checks the AST and produces errors/warning for ARC migration issues
/// that the user needs to handle manually.
///
/// \param emitPremigrationARCErrors if true all ARC errors will get emitted
/// even if the migrator can fix them, but the function will still return false
/// if all ARC errors can be fixed.
///
/// \param plistOut if non-empty, it is the file path to store the plist with
/// the pre-migration ARC diagnostics.
///
/// \returns false if no error is produced, true otherwise.
bool checkForManualIssues(CompilerInvocation &CI,
StringRef Filename, InputKind Kind,
DiagnosticClient *DiagClient,
bool emitPremigrationARCErrors = false,
StringRef plistOut = StringRef());
/// \brief Works similar to checkForManualIssues but instead of checking, it
/// applies automatic modifications to source files to conform to ARC.
///
/// \returns false if no error is produced, true otherwise.
bool applyTransformations(CompilerInvocation &origCI,
StringRef Filename, InputKind Kind,
DiagnosticClient *DiagClient);
/// \brief Applies automatic modifications and produces temporary files
/// and metadata into the \arg outputDir path.
///
/// \param emitPremigrationARCErrors if true all ARC errors will get emitted
/// even if the migrator can fix them, but the function will still return false
/// if all ARC errors can be fixed.
///
/// \param plistOut if non-empty, it is the file path to store the plist with
/// the pre-migration ARC diagnostics.
///
/// \returns false if no error is produced, true otherwise.
bool migrateWithTemporaryFiles(CompilerInvocation &origCI,
StringRef Filename, InputKind Kind,
DiagnosticClient *DiagClient,
StringRef outputDir,
bool emitPremigrationARCErrors,
StringRef plistOut);
/// \brief Get the set of file remappings from the \arg outputDir path that
/// migrateWithTemporaryFiles produced.
///
/// \returns false if no error is produced, true otherwise.
bool getFileRemappings(std::vector<std::pair<std::string,std::string> > &remap,
StringRef outputDir,
DiagnosticClient *DiagClient);
typedef void (*TransformFn)(MigrationPass &pass);
std::vector<TransformFn> getAllTransformations();
class MigrationProcess {
CompilerInvocation OrigCI;
DiagnosticClient *DiagClient;
FileRemapper Remapper;
public:
MigrationProcess(const CompilerInvocation &CI, DiagnosticClient *diagClient,
StringRef outputDir = StringRef());
class RewriteListener {
public:
virtual ~RewriteListener();
virtual void start(ASTContext &Ctx) { }
virtual void finish() { }
virtual void insert(SourceLocation loc, StringRef text) { }
virtual void remove(CharSourceRange range) { }
};
bool applyTransform(TransformFn trans, RewriteListener *listener = 0);
FileRemapper &getRemapper() { return Remapper; }
};
} // end namespace arcmt
} // end namespace clang
#endif
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