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📄 AArch64TargetParser.def(12.01 KB)
📄 AArch64TargetParser.h(4.89 KB)
📄 AMDGPUMetadata.h(17.98 KB)
📄 AMDHSAKernelDescriptor.h(7.63 KB)
📄 ARMAttributeParser.h(3.2 KB)
📄 ARMBuildAttributes.h(8.6 KB)
📄 ARMEHABI.h(3.72 KB)
📄 ARMTargetParser.def(18.94 KB)
📄 ARMTargetParser.h(8.76 KB)
📄 ARMWinEH.h(18.27 KB)
📄 AlignOf.h(1.56 KB)
📄 Alignment.h(12.95 KB)
📄 Allocator.h(16.54 KB)
📄 AllocatorBase.h(3.87 KB)
📄 ArrayRecycler.h(4.78 KB)
📄 Atomic.h(1.09 KB)
📄 AtomicOrdering.h(6.01 KB)
📄 Automaton.h(9.64 KB)
📄 Base64.h(1.84 KB)
📄 BinaryByteStream.h(9.14 KB)
📄 BinaryItemStream.h(3.63 KB)
📄 BinaryStream.h(3.75 KB)
📄 BinaryStreamArray.h(12.46 KB)
📄 BinaryStreamError.h(1.29 KB)
📄 BinaryStreamReader.h(11.01 KB)
📄 BinaryStreamRef.h(10.09 KB)
📄 BinaryStreamWriter.h(7.79 KB)
📄 BlockFrequency.h(2.41 KB)
📄 BranchProbability.h(7.92 KB)
📄 BuryPointer.h(1.03 KB)
📄 CBindingWrapping.h(1.86 KB)
📄 CFGDiff.h(9.95 KB)
📄 CFGUpdate.h(4.12 KB)
📄 COM.h(1004 B)
📄 CRC.h(1.63 KB)
📄 CachePruning.h(3.5 KB)
📄 Capacity.h(972 B)
📄 Casting.h(13.92 KB)
📄 CheckedArithmetic.h(3.71 KB)
📄 Chrono.h(5.78 KB)
📄 CodeGen.h(1.96 KB)
📄 CodeGenCoverage.h(1.18 KB)
📄 CommandLine.h(71.22 KB)
📄 Compiler.h(19.5 KB)
📄 Compression.h(1.39 KB)
📄 ConvertUTF.h(11.4 KB)
📄 CrashRecoveryContext.h(9.26 KB)
📄 DJB.h(1.05 KB)
📄 DOTGraphTraits.h(5.58 KB)
📄 DataExtractor.h(30.28 KB)
📄 DataTypes.h(775 B)
📄 Debug.h(4.7 KB)
📄 DebugCounter.h(7.01 KB)
📄 DynamicLibrary.h(5.77 KB)
📄 ELFAttributeParser.h(2.22 KB)
📄 ELFAttributes.h(1.02 KB)
📄 Endian.h(14.28 KB)
📄 EndianStream.h(1.93 KB)
📄 Errc.h(3.8 KB)
📄 Errno.h(1.45 KB)
📄 Error.h(43.82 KB)
📄 ErrorHandling.h(6.39 KB)
📄 ErrorOr.h(7.48 KB)
📄 ExtensibleRTTI.h(4.02 KB)
📄 FileCheck.h(6.69 KB)
📄 FileCollector.h(3.74 KB)
📄 FileOutputBuffer.h(3.36 KB)
📄 FileSystem.h(53.03 KB)
📄 FileUtilities.h(3.83 KB)
📄 Format.h(9.45 KB)
📄 FormatAdapters.h(3.38 KB)
📄 FormatCommon.h(2.05 KB)
📄 FormatProviders.h(15.27 KB)
📄 FormatVariadic.h(9.88 KB)
📄 FormatVariadicDetails.h(5.3 KB)
📄 FormattedStream.h(6.42 KB)
📄 GenericDomTree.h(30.89 KB)
📄 GenericDomTreeConstruction.h(63.42 KB)
📄 GenericIteratedDominanceFrontier.h(7.31 KB)
📄 GlobPattern.h(1.35 KB)
📄 GraphWriter.h(11.79 KB)
📄 Host.h(2.68 KB)
📄 InitLLVM.h(1.79 KB)
📄 ItaniumManglingCanonicalizer.h(3.17 KB)
📄 JSON.h(28.25 KB)
📄 KnownBits.h(8.35 KB)
📄 LEB128.h(5.74 KB)
📄 LineIterator.h(2.62 KB)
📄 Locale.h(223 B)
📄 LockFileManager.h(3.13 KB)
📄 LowLevelTypeImpl.h(11.94 KB)
📄 MD5.h(3.39 KB)
📄 MSVCErrorWorkarounds.h(2.62 KB)
📄 MachineValueType.h(42.37 KB)
📄 ManagedStatic.h(4.21 KB)
📄 MathExtras.h(32.81 KB)
📄 MemAlloc.h(3.21 KB)
📄 Memory.h(6.94 KB)
📄 MemoryBuffer.h(10.98 KB)
📄 MipsABIFlags.h(3.92 KB)
📄 Mutex.h(2.14 KB)
📄 NativeFormatting.h(1.64 KB)
📄 OnDiskHashTable.h(21.97 KB)
📄 OptimizedStructLayout.h(5.89 KB)
📄 Parallel.h(5.99 KB)
📄 Path.h(15.6 KB)
📄 PluginLoader.h(1.29 KB)
📄 PointerLikeTypeTraits.h(5.69 KB)
📄 PrettyStackTrace.h(4.45 KB)
📄 Printable.h(1.5 KB)
📄 Process.h(9.31 KB)
📄 Program.h(10.35 KB)
📄 RISCVAttributeParser.h(1.15 KB)
📄 RISCVAttributes.h(1.2 KB)
📄 RISCVTargetParser.def(446 B)
📄 RWMutex.h(5.65 KB)
📄 RandomNumberGenerator.h(2.29 KB)
📄 Recycler.h(3.47 KB)
📄 RecyclingAllocator.h(2.38 KB)
📄 Regex.h(4.37 KB)
📄 Registry.h(5.14 KB)
📄 ReverseIteration.h(360 B)
📄 SHA1.h(2.37 KB)
📄 SMLoc.h(1.78 KB)
📄 SMTAPI.h(16.33 KB)
📄 SaveAndRestore.h(1.02 KB)
📄 ScaledNumber.h(30.65 KB)
📄 ScopedPrinter.h(11.39 KB)
📄 Signals.h(5.22 KB)
📄 Signposts.h(1.29 KB)
📄 SmallVectorMemoryBuffer.h(2.28 KB)
📁 Solaris
📄 SourceMgr.h(10.37 KB)
📄 SpecialCaseList.h(6.01 KB)
📄 StringSaver.h(1.94 KB)
📄 SuffixTree.h(13.15 KB)
📄 SwapByteOrder.h(4.8 KB)
📄 SymbolRemappingReader.h(4.36 KB)
📄 SystemUtils.h(1.02 KB)
📄 TarWriter.h(941 B)
📄 TargetOpcodes.def(22.01 KB)
📄 TargetParser.h(4.08 KB)
📄 TargetRegistry.h(46.87 KB)
📄 TargetSelect.h(6.2 KB)
📄 TaskQueue.h(4.24 KB)
📄 ThreadLocal.h(2.08 KB)
📄 ThreadPool.h(3.44 KB)
📄 Threading.h(10.62 KB)
📄 TimeProfiler.h(3.46 KB)
📄 Timer.h(8.93 KB)
📄 ToolOutputFile.h(2.24 KB)
📄 TrailingObjects.h(15.19 KB)
📄 TrigramIndex.h(2.84 KB)
📄 TypeName.h(2.13 KB)
📄 TypeSize.h(8.53 KB)
📄 Unicode.h(2.5 KB)
📄 UnicodeCharRanges.h(3.27 KB)
📄 Valgrind.h(1.16 KB)
📄 VersionTuple.h(5.22 KB)
📄 VirtualFileSystem.h(28.28 KB)
📄 Watchdog.h(1.15 KB)
📄 Win64EH.h(4.82 KB)
📁 Windows
📄 WindowsError.h(541 B)
📄 WithColor.h(4.64 KB)
📄 X86DisassemblerDecoderCommon.h(29.39 KB)
📄 X86TargetParser.def(8.21 KB)
📄 X86TargetParser.h(3.57 KB)
📄 YAMLParser.h(16.29 KB)
📄 YAMLTraits.h(67.62 KB)
📄 circular_raw_ostream.h(4.97 KB)
📄 raw_os_ostream.h(1.29 KB)
📄 raw_ostream.h(20.82 KB)
📄 raw_sha1_ostream.h(1.29 KB)
📄 thread.h(1.33 KB)
📄 type_traits.h(6.75 KB)
📄 xxhash.h(1.92 KB)

Editing: FormattedStream.h

//===-- llvm/Support/FormattedStream.h - Formatted streams ------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file contains raw_ostream implementations for streams to do
// things like pretty-print comments.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_SUPPORT_FORMATTEDSTREAM_H
#define LLVM_SUPPORT_FORMATTEDSTREAM_H

#include "llvm/ADT/SmallString.h"
#include "llvm/Support/raw_ostream.h"
#include <utility>

namespace llvm {

/// formatted_raw_ostream - A raw_ostream that wraps another one and keeps track
/// of line and column position, allowing padding out to specific column
/// boundaries and querying the number of lines written to the stream. This
/// assumes that the contents of the stream is valid UTF-8 encoded text. This
/// doesn't attempt to handle everything Unicode can do (combining characters,
/// right-to-left markers, etc), but should cover the cases likely to appear in
/// source code or diagnostic messages.
class formatted_raw_ostream : public raw_ostream {
  /// TheStream - The real stream we output to. We set it to be
  /// unbuffered, since we're already doing our own buffering.
  ///
  raw_ostream *TheStream;

/// Position - The current output column and line of the data that's
  /// been flushed and the portion of the buffer that's been
  /// scanned.  The line and column scheme is zero-based.
  ///
  std::pair<unsigned, unsigned> Position;

/// Scanned - This points to one past the last character in the
  /// buffer we've scanned.
  ///
  const char *Scanned;

/// PartialUTF8Char - Either empty or a prefix of a UTF-8 code unit sequence
  /// for a Unicode scalar value which should be prepended to the buffer for the
  /// next call to ComputePosition. This is needed when the buffer is flushed
  /// when it ends part-way through the UTF-8 encoding of a Unicode scalar
  /// value, so that we can compute the display width of the character once we
  /// have the rest of it.
  SmallString<4> PartialUTF8Char;

void write_impl(const char *Ptr, size_t Size) override;

/// current_pos - Return the current position within the stream,
  /// not counting the bytes currently in the buffer.
  uint64_t current_pos() const override {
    // Our current position in the stream is all the contents which have been
    // written to the underlying stream (*not* the current position of the
    // underlying stream).
    return TheStream->tell();
  }

/// ComputePosition - Examine the given output buffer and figure out the new
  /// position after output. This is safe to call multiple times on the same
  /// buffer, as it records the most recently scanned character and resumes from
  /// there when the buffer has not been flushed.
  void ComputePosition(const char *Ptr, size_t size);

/// UpdatePosition - scan the characters in [Ptr, Ptr+Size), and update the
  /// line and column numbers. Unlike ComputePosition, this must be called
  /// exactly once on each region of the buffer.
  void UpdatePosition(const char *Ptr, size_t Size);

void setStream(raw_ostream &Stream) {
    releaseStream();

TheStream = &Stream;

// This formatted_raw_ostream inherits from raw_ostream, so it'll do its
    // own buffering, and it doesn't need or want TheStream to do another
    // layer of buffering underneath. Resize the buffer to what TheStream
    // had been using, and tell TheStream not to do its own buffering.
    if (size_t BufferSize = TheStream->GetBufferSize())
      SetBufferSize(BufferSize);
    else
      SetUnbuffered();
    TheStream->SetUnbuffered();

Scanned = nullptr;
  }

public:
  /// formatted_raw_ostream - Open the specified file for
  /// writing. If an error occurs, information about the error is
  /// put into ErrorInfo, and the stream should be immediately
  /// destroyed; the string will be empty if no error occurred.
  ///
  /// As a side effect, the given Stream is set to be Unbuffered.
  /// This is because formatted_raw_ostream does its own buffering,
  /// so it doesn't want another layer of buffering to be happening
  /// underneath it.
  ///
  formatted_raw_ostream(raw_ostream &Stream)
      : TheStream(nullptr), Position(0, 0) {
    setStream(Stream);
  }
  explicit formatted_raw_ostream() : TheStream(nullptr), Position(0, 0) {
    Scanned = nullptr;
  }

~formatted_raw_ostream() override {
    flush();
    releaseStream();
  }

/// PadToColumn - Align the output to some column number.  If the current
  /// column is already equal to or more than NewCol, PadToColumn inserts one
  /// space.
  ///
  /// \param NewCol - The column to move to.
  formatted_raw_ostream &PadToColumn(unsigned NewCol);

unsigned getColumn() {
    // Calculate current position, taking buffer contents into account.
    ComputePosition(getBufferStart(), GetNumBytesInBuffer());
    return Position.first;
  }

unsigned getLine() {
    // Calculate current position, taking buffer contents into account.
    ComputePosition(getBufferStart(), GetNumBytesInBuffer());
    return Position.second;
  }

raw_ostream &resetColor() override {
    TheStream->resetColor();
    return *this;
  }

raw_ostream &reverseColor() override {
    TheStream->reverseColor();
    return *this;
  }

raw_ostream &changeColor(enum Colors Color, bool Bold, bool BG) override {
    TheStream->changeColor(Color, Bold, BG);
    return *this;
  }

bool is_displayed() const override {
    return TheStream->is_displayed();
  }

private:
  void releaseStream() {
    // Transfer the buffer settings from this raw_ostream back to the underlying
    // stream.
    if (!TheStream)
      return;
    if (size_t BufferSize = GetBufferSize())
      TheStream->SetBufferSize(BufferSize);
    else
      TheStream->SetUnbuffered();
  }
};

/// fouts() - This returns a reference to a formatted_raw_ostream for
/// standard output.  Use it like: fouts() << "foo" << "bar";
formatted_raw_ostream &fouts();

/// ferrs() - This returns a reference to a formatted_raw_ostream for
/// standard error.  Use it like: ferrs() << "foo" << "bar";
formatted_raw_ostream &ferrs();

/// fdbgs() - This returns a reference to a formatted_raw_ostream for
/// debug output.  Use it like: fdbgs() << "foo" << "bar";
formatted_raw_ostream &fdbgs();

} // end llvm namespace

#endif

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