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//===--- LogDiagnosticPrinter.cpp - Log Diagnostic Printer ----------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "clang/Frontend/LogDiagnosticPrinter.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/PlistSupport.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang;
using namespace markup;
LogDiagnosticPrinter::LogDiagnosticPrinter(
raw_ostream &os, DiagnosticOptions *diags,
std::unique_ptr<raw_ostream> StreamOwner)
: OS(os), StreamOwner(std::move(StreamOwner)), LangOpts(nullptr),
DiagOpts(diags) {}
static StringRef getLevelName(DiagnosticsEngine::Level Level) {
switch (Level) {
case DiagnosticsEngine::Ignored: return "ignored";
case DiagnosticsEngine::Remark: return "remark";
case DiagnosticsEngine::Note: return "note";
case DiagnosticsEngine::Warning: return "warning";
case DiagnosticsEngine::Error: return "error";
case DiagnosticsEngine::Fatal: return "fatal error";
}
llvm_unreachable("Invalid DiagnosticsEngine level!");
}
void
LogDiagnosticPrinter::EmitDiagEntry(llvm::raw_ostream &OS,
const LogDiagnosticPrinter::DiagEntry &DE) {
OS << " <dict>\n";
OS << " <key>level</key>\n"
<< " ";
EmitString(OS, getLevelName(DE.DiagnosticLevel)) << '\n';
if (!DE.Filename.empty()) {
OS << " <key>filename</key>\n"
<< " ";
EmitString(OS, DE.Filename) << '\n';
}
if (DE.Line != 0) {
OS << " <key>line</key>\n"
<< " ";
EmitInteger(OS, DE.Line) << '\n';
}
if (DE.Column != 0) {
OS << " <key>column</key>\n"
<< " ";
EmitInteger(OS, DE.Column) << '\n';
}
if (!DE.Message.empty()) {
OS << " <key>message</key>\n"
<< " ";
EmitString(OS, DE.Message) << '\n';
}
OS << " <key>ID</key>\n"
<< " ";
EmitInteger(OS, DE.DiagnosticID) << '\n';
if (!DE.WarningOption.empty()) {
OS << " <key>WarningOption</key>\n"
<< " ";
EmitString(OS, DE.WarningOption) << '\n';
}
OS << " </dict>\n";
}
void LogDiagnosticPrinter::EndSourceFile() {
// We emit all the diagnostics in EndSourceFile. However, we don't emit any
// entry if no diagnostics were present.
//
// Note that DiagnosticConsumer has no "end-of-compilation" callback, so we
// will miss any diagnostics which are emitted after and outside the
// translation unit processing.
if (Entries.empty())
return;
// Write to a temporary string to ensure atomic write of diagnostic object.
SmallString<512> Msg;
llvm::raw_svector_ostream OS(Msg);
OS << "<dict>\n";
if (!MainFilename.empty()) {
OS << " <key>main-file</key>\n"
<< " ";
EmitString(OS, MainFilename) << '\n';
}
if (!DwarfDebugFlags.empty()) {
OS << " <key>dwarf-debug-flags</key>\n"
<< " ";
EmitString(OS, DwarfDebugFlags) << '\n';
}
OS << " <key>diagnostics</key>\n";
OS << " <array>\n";
for (auto &DE : Entries)
EmitDiagEntry(OS, DE);
OS << " </array>\n";
OS << "</dict>\n";
this->OS << OS.str();
}
void LogDiagnosticPrinter::HandleDiagnostic(DiagnosticsEngine::Level Level,
const Diagnostic &Info) {
// Default implementation (Warnings/errors count).
DiagnosticConsumer::HandleDiagnostic(Level, Info);
// Initialize the main file name, if we haven't already fetched it.
if (MainFilename.empty() && Info.hasSourceManager()) {
const SourceManager &SM = Info.getSourceManager();
FileID FID = SM.getMainFileID();
if (FID.isValid()) {
if (const FileEntry *FE = SM.getFileEntryForID(FID))
MainFilename = std::string(FE->getName());
}
}
// Create the diag entry.
DiagEntry DE;
DE.DiagnosticID = Info.getID();
DE.DiagnosticLevel = Level;
DE.WarningOption =
std::string(DiagnosticIDs::getWarningOptionForDiag(DE.DiagnosticID));
// Format the message.
SmallString<100> MessageStr;
Info.FormatDiagnostic(MessageStr);
DE.Message = std::string(MessageStr.str());
// Set the location information.
DE.Filename = "";
DE.Line = DE.Column = 0;
if (Info.getLocation().isValid() && Info.hasSourceManager()) {
const SourceManager &SM = Info.getSourceManager();
PresumedLoc PLoc = SM.getPresumedLoc(Info.getLocation());
if (PLoc.isInvalid()) {
// At least print the file name if available:
FileID FID = SM.getFileID(Info.getLocation());
if (FID.isValid()) {
if (const FileEntry *FE = SM.getFileEntryForID(FID))
DE.Filename = std::string(FE->getName());
}
} else {
DE.Filename = PLoc.getFilename();
DE.Line = PLoc.getLine();
DE.Column = PLoc.getColumn();
}
}
// Record the diagnostic entry.
Entries.push_back(DE);
}
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