contrib/libs/antlr4_cpp_runtime/src/atn/PredictionContextCache.cpp - main - githubmirror/nbs

contrib/libs/antlr4_cpp_runtime/src/atn/PredictionContextCache.cpp

56 строк2 KB

Anton Myagkov

Update ydb version to 24.4 (#4579)

07 фев 2026, 11:59

07 фев 2026, 11:592c21cae

// Copyright 2012-2022 The ANTLR Project
//
// Redistribution and use in source and binary forms, with or without modification, are permitted
// provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions
//    and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list of
//    conditions and the following disclaimer in the documentation and/or other materials provided
//    with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be used to
//    endorse or promote products derived from this software without specific prior written
//    permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
// WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "atn/PredictionContextCache.h"

using namespace antlr4::atn;

void PredictionContextCache::put(const Ref<const PredictionContext> &value) {
  assert(value);

  _data.insert(value);
}

Ref<const PredictionContext> PredictionContextCache::get(
    const Ref<const PredictionContext> &value) const {
  assert(value);

  auto iterator = _data.find(value);
  if (iterator == _data.end()) {
    return nullptr;
  }
  return *iterator;
}

size_t PredictionContextCache::PredictionContextHasher::operator()(
    const Ref<const PredictionContext> &predictionContext) const {
  return predictionContext->hashCode();
}

bool PredictionContextCache::PredictionContextComparer::operator()(
    const Ref<const PredictionContext> &lhs,
    const Ref<const PredictionContext> &rhs) const {
  return *lhs == *rhs;
}