//===--- TextDiagnosticPrinter.cpp - Diagnostic Printer -------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This diagnostic client prints out their diagnostic messages.
//
//===----------------------------------------------------------------------===//
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Frontend/DiagnosticOptions.h"
#include "clang/Lex/Lexer.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include <algorithm>
using namespace clang;
static const enum raw_ostream::Colors noteColor =
raw_ostream::BLACK;
static const enum raw_ostream::Colors fixitColor =
raw_ostream::GREEN;
static const enum raw_ostream::Colors caretColor =
raw_ostream::GREEN;
static const enum raw_ostream::Colors warningColor =
raw_ostream::MAGENTA;
static const enum raw_ostream::Colors errorColor = raw_ostream::RED;
static const enum raw_ostream::Colors fatalColor = raw_ostream::RED;
// Used for changing only the bold attribute.
static const enum raw_ostream::Colors savedColor =
raw_ostream::SAVEDCOLOR;
/// \brief Number of spaces to indent when word-wrapping.
const unsigned WordWrapIndentation = 6;
TextDiagnosticPrinter::TextDiagnosticPrinter(raw_ostream &os,
const DiagnosticOptions &diags,
bool _OwnsOutputStream)
: OS(os), LangOpts(0), DiagOpts(&diags),
LastCaretDiagnosticWasNote(0),
OwnsOutputStream(_OwnsOutputStream) {
}
TextDiagnosticPrinter::~TextDiagnosticPrinter() {
if (OwnsOutputStream)
delete &OS;
}
void TextDiagnosticPrinter::PrintIncludeStack(Diagnostic::Level Level,
SourceLocation Loc,
const SourceManager &SM) {
if (!DiagOpts->ShowNoteIncludeStack && Level == Diagnostic::Note) return;
if (Loc.isInvalid()) return;
PresumedLoc PLoc = SM.getPresumedLoc(Loc);
if (PLoc.isInvalid())
return;
// Print out the other include frames first.
PrintIncludeStack(Level, PLoc.getIncludeLoc(), SM);
if (DiagOpts->ShowLocation)
OS << "In file included from " << PLoc.getFilename()
<< ':' << PLoc.getLine() << ":\n";
else
OS << "In included file:\n";
}
/// HighlightRange - Given a SourceRange and a line number, highlight (with ~'s)
/// any characters in LineNo that intersect the SourceRange.
void TextDiagnosticPrinter::HighlightRange(const CharSourceRange &R,
const SourceManager &SM,
unsigned LineNo, FileID FID,
std::string &CaretLine,
const std::string &SourceLine) {
assert(CaretLine.size() == SourceLine.size() &&
"Expect a correspondence between source and caret line!");
if (!R.isValid()) return;
SourceLocation Begin = SM.getExpansionLoc(R.getBegin());
SourceLocation End = SM.getExpansionLoc(R.getEnd());
// If the End location and the start location are the same and are a macro
// location, then the range was something that came from a macro expansion
// or _Pragma. If this is an object-like macro, the best we can do is to
// highlight the range. If this is a function-like macro, we'd also like to
// highlight the arguments.
if (Begin == End && R.getEnd().isMacroID())
End = SM.getExpansionRange(R.getEnd()).second;
unsigned StartLineNo = SM.getExpansionLineNumber(Begin);
if (StartLineNo > LineNo