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//===--- FixItRewriter.h - Fix-It Rewriter Diagnostic Client ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is a diagnostic client adaptor that performs rewrites as
// suggested by code modification hints attached to diagnostics. It
// then forwards any diagnostics to the adapted diagnostic client.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_FRONTEND_FIX_IT_REWRITER_H
#define LLVM_CLANG_FRONTEND_FIX_IT_REWRITER_H
#include "clang/Basic/Diagnostic.h"
#include "clang/Rewrite/Rewriter.h"
#include "llvm/ADT/SmallVector.h"
namespace clang {
class SourceManager;
class FileEntry;
/// \brief Stores a source location in the form that it shows up on
/// the Clang command line, e.g., file:line:column.
///
/// FIXME: Would prefer to use real SourceLocations, but I don't see a
/// good way to resolve them during parsing.
struct RequestedSourceLocation {
const FileEntry *File;
unsigned Line;
unsigned Column;
};
class FixItRewriter : public DiagnosticClient {
/// \brief The diagnostics machinery.
Diagnostic &Diags;
/// \brief The rewriter used to perform the various code
/// modifications.
Rewriter Rewrite;
/// \brief The diagnostic client that performs the actual formatting
/// of error messages.
DiagnosticClient *Client;
/// \brief The number of rewriter failures.
unsigned NumFailures;
/// \brief Locations at which we should perform fix-its.
///
/// When empty, perform fix-it modifications everywhere.
llvm::SmallVector<RequestedSourceLocation, 4> FixItLocations;
public:
/// \brief Initialize a new fix-it rewriter.
FixItRewriter(Diagnostic &Diags, SourceManager &SourceMgr,
const LangOptions &LangOpts);
/// \brief Destroy the fix-it rewriter.
~FixItRewriter();
/// \brief Add a location where fix-it modifications should be
/// performed.
void addFixItLocation(RequestedSourceLocation Loc) {
FixItLocations.push_back(Loc);
}
/// \brief Write the modified source file.
///
/// \returns true if there was an error, false otherwise.
bool WriteFixedFile(const std::string &InFileName,
const std::string &OutFileName = std::string());
/// IncludeInDiagnosticCounts - This method (whose default implementation
/// returns true) indicates whether the diagnostics handled by this
/// DiagnosticClient should be included in the number of diagnostics
/// reported by Diagnostic.
virtual bool IncludeInDiagnosticCounts() const;
/// HandleDiagnostic - Handle this diagnostic, reporting it to the user or
/// capturing it to a log as needed.
virtual void HandleDiagnostic(Diagnostic::Level DiagLevel,
const DiagnosticInfo &Info);
/// \brief Emit a diagnostic via the adapted diagnostic client.
void Diag(FullSourceLoc Loc, unsigned DiagID);
};
}
#endif // LLVM_CLANG_FRONTEND_FIX_IT_REWRITER_H
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