Intermediate changes

1 files changed, 0 insertions, 270 deletions

diff --git a/contrib/libs/antlr4_cpp_runtime/src/UnbufferedTokenStream.cpp b/contrib/libs/antlr4_cpp_runtime/src/UnbufferedTokenStream.cpp
deleted file mode 100644
index 16ff49e3328..00000000000
--- a/contrib/libs/antlr4_cpp_runtime/src/UnbufferedTokenStream.cpp
+++ /dev/null
@@ -1,270 +0,0 @@
-/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
- * Use of this file is governed by the BSD 3-clause license that
- * can be found in the LICENSE.txt file in the project root.
- */
-
-#include "Token.h"
-#include "Exceptions.h"
-#include "assert.h"
-#include "TokenSource.h"
-#include "support/Arrays.h"
-#include "misc/Interval.h"
-#include "RuleContext.h"
-#include "WritableToken.h"
-
-#include "UnbufferedTokenStream.h"
-
-using namespace antlr4;
-
-UnbufferedTokenStream::UnbufferedTokenStream(TokenSource *tokenSource) : UnbufferedTokenStream(tokenSource, 256) {
-}
-
-UnbufferedTokenStream::UnbufferedTokenStream(TokenSource *tokenSource, int /*bufferSize*/)
-  : _tokenSource(tokenSource), _lastToken(nullptr), _lastTokenBufferStart(nullptr)
-{
-  InitializeInstanceFields();
-  fill(1); // prime the pump
-}
-
-UnbufferedTokenStream::~UnbufferedTokenStream() {
-}
-
-Token* UnbufferedTokenStream::get(size_t i) const
-{ // get absolute index
-  size_t bufferStartIndex = getBufferStartIndex();
-  if (i < bufferStartIndex || i >= bufferStartIndex + _tokens.size()) {
-    throw IndexOutOfBoundsException(std::string("get(") + std::to_string(i) + std::string(") outside buffer: ")
-      + std::to_string(bufferStartIndex) + std::string("..") + std::to_string(bufferStartIndex + _tokens.size()));
-  }
-  return _tokens[i - bufferStartIndex].get();
-}
-
-Token* UnbufferedTokenStream::LT(ssize_t i)
-{
-  if (i == -1) {
-    return _lastToken;
-  }
-
-  sync(i);
-  ssize_t index = static_cast<ssize_t>(_p) + i - 1;
-  if (index < 0) {
-    throw IndexOutOfBoundsException(std::string("LT(") + std::to_string(i) + std::string(") gives negative index"));
-  }
-
-  if (index >= static_cast<ssize_t>(_tokens.size())) {
-    assert(_tokens.size() > 0 && _tokens.back()->getType() == EOF);
-    return _tokens.back().get();
-  }
-
-  return _tokens[static_cast<size_t>(index)].get();
-}
-
-size_t UnbufferedTokenStream::LA(ssize_t i)
-{
-  return LT(i)->getType();
-}
-
-TokenSource* UnbufferedTokenStream::getTokenSource() const
-{
-  return _tokenSource;
-}
-
-std::string UnbufferedTokenStream::getText()
-{
-  return "";
-}
-
-std::string UnbufferedTokenStream::getText(RuleContext* ctx)
-{
-  return getText(ctx->getSourceInterval());
-}
-
-std::string UnbufferedTokenStream::getText(Token *start, Token *stop)
-{
-  return getText(misc::Interval(start->getTokenIndex(), stop->getTokenIndex()));
-}
-
-void UnbufferedTokenStream::consume()
-{
-  if (LA(1) == EOF) {
-    throw IllegalStateException("cannot consume EOF");
-  }
-
-  // buf always has at least tokens[p==0] in this method due to ctor
-  _lastToken = _tokens[_p].get(); // track last token for LT(-1)
-
-  // if we're at last token and no markers, opportunity to flush buffer
-  if (_p == _tokens.size() - 1 && _numMarkers == 0) {
-    _tokens.clear();
-    _p = 0;
-    _lastTokenBufferStart = _lastToken;
-  } else {
-    ++_p;
-  }
-
-  ++_currentTokenIndex;
-  sync(1);
-}
-
-/// <summary>
-/// Make sure we have 'need' elements from current position <seealso cref="#p p"/>. Last valid
-///  {@code p} index is {@code tokens.length-1}.  {@code p+need-1} is the tokens index 'need' elements
-///  ahead.  If we need 1 element, {@code (p+1-1)==p} must be less than {@code tokens.length}.
-/// </summary>
-void UnbufferedTokenStream::sync(ssize_t want)
-{
-  ssize_t need = (static_cast<ssize_t>(_p) + want - 1) - static_cast<ssize_t>(_tokens.size()) + 1; // how many more elements we need?
-  if (need > 0) {
-    fill(static_cast<size_t>(need));
-  }
-}
-
-/// <summary>
-/// Add {@code n} elements to the buffer. Returns the number of tokens
-/// actually added to the buffer. If the return value is less than {@code n},
-/// then EOF was reached before {@code n} tokens could be added.
-/// </summary>
-size_t UnbufferedTokenStream::fill(size_t n)
-{
-  for (size_t i = 0; i < n; i++) {
-    if (_tokens.size() > 0 && _tokens.back()->getType() == EOF) {
-      return i;
-    }
-
-    add(_tokenSource->nextToken());
-  }
-
-  return n;
-}
-
-void UnbufferedTokenStream::add(std::unique_ptr<Token> t)
-{
-  WritableToken *writable = dynamic_cast<WritableToken *>(t.get());
-  if (writable != nullptr) {
-    writable->setTokenIndex(int(getBufferStartIndex() + _tokens.size()));
-  }
-
-  _tokens.push_back(std::move(t));
-}
-
-/// <summary>
-/// Return a marker that we can release later.
-/// <p/>
-/// The specific marker value used for this class allows for some level of
-/// protection against misuse where {@code seek()} is called on a mark or
-/// {@code release()} is called in the wrong order.
-/// </summary>
-ssize_t UnbufferedTokenStream::mark()
-{
-  if (_numMarkers == 0) {
-    _lastTokenBufferStart = _lastToken;
-  }
-
-  int mark = -_numMarkers - 1;
-  _numMarkers++;
-  return mark;
-}
-
-void UnbufferedTokenStream::release(ssize_t marker)
-{
-  ssize_t expectedMark = -_numMarkers;
-  if (marker != expectedMark) {
-    throw IllegalStateException("release() called with an invalid marker.");
-  }
-
-  _numMarkers--;
-  if (_numMarkers == 0) { // can we release buffer?
-    if (_p > 0) {
-      // Copy tokens[p]..tokens[n-1] to tokens[0]..tokens[(n-1)-p], reset ptrs
-      // p is last valid token; move nothing if p==n as we have no valid char
-      _tokens.erase(_tokens.begin(), _tokens.begin() + static_cast<ssize_t>(_p));
-      _p = 0;
-    }
-
-    _lastTokenBufferStart = _lastToken;
-  }
-}
-
-size_t UnbufferedTokenStream::index()
-{
-  return _currentTokenIndex;
-}
-
-void UnbufferedTokenStream::seek(size_t index)
-{ // seek to absolute index
-  if (index == _currentTokenIndex) {
-    return;
-  }
-
-  if (index > _currentTokenIndex) {
-    sync(ssize_t(index - _currentTokenIndex));
-    index = std::min(index, getBufferStartIndex() + _tokens.size() - 1);
-  }
-
-  size_t bufferStartIndex = getBufferStartIndex();
-  if (bufferStartIndex > index) {
-    throw IllegalArgumentException(std::string("cannot seek to negative index ") + std::to_string(index));
-  }
-
-  size_t i = index - bufferStartIndex;
-  if (i >= _tokens.size()) {
-    throw UnsupportedOperationException(std::string("seek to index outside buffer: ") + std::to_string(index) +
-      " not in " + std::to_string(bufferStartIndex) + ".." + std::to_string(bufferStartIndex + _tokens.size()));
-  }
-
-  _p = i;
-  _currentTokenIndex = index;
-  if (_p == 0) {
-    _lastToken = _lastTokenBufferStart;
-  } else {
-    _lastToken = _tokens[_p - 1].get();
-  }
-}
-
-size_t UnbufferedTokenStream::size()
-{
-  throw UnsupportedOperationException("Unbuffered stream cannot know its size");
-}
-
-std::string UnbufferedTokenStream::getSourceName() const
-{
-  return _tokenSource->getSourceName();
-}
-
-std::string UnbufferedTokenStream::getText(const misc::Interval &interval)
-{
-  size_t bufferStartIndex = getBufferStartIndex();
-  size_t bufferStopIndex = bufferStartIndex + _tokens.size() - 1;
-
-  size_t start = interval.a;
-  size_t stop = interval.b;
-  if (start < bufferStartIndex || stop > bufferStopIndex) {
-    throw UnsupportedOperationException(std::string("interval ") + interval.toString() +
-      " not in token buffer window: " + std::to_string(bufferStartIndex) + ".." + std::to_string(bufferStopIndex));
-  }
-
-  size_t a = start - bufferStartIndex;
-  size_t b = stop - bufferStartIndex;
-
-  std::stringstream ss;
-  for (size_t i = a; i <= b; i++) {
-    Token *t = _tokens[i].get();
-    if (i > 0)
-      ss << ", ";
-    ss << t->getText();
-  }
-
-  return ss.str();
-}
-
-size_t UnbufferedTokenStream::getBufferStartIndex() const
-{
-  return _currentTokenIndex - _p;
-}
-
-void UnbufferedTokenStream::InitializeInstanceFields()
-{
-  _p = 0;
-  _numMarkers = 0;
-  _currentTokenIndex = 0;
-}