Intermediate changes

1 files changed, 57 insertions, 0 deletions

diff --git a/contrib/libs/antlr4_cpp_runtime/src/atn/LexerIndexedCustomAction.cpp b/contrib/libs/antlr4_cpp_runtime/src/atn/LexerIndexedCustomAction.cpp
new file mode 100644
index 00000000000..114863702c9
--- /dev/null
+++ b/contrib/libs/antlr4_cpp_runtime/src/atn/LexerIndexedCustomAction.cpp
@@ -0,0 +1,57 @@
+/* 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 "misc/MurmurHash.h"
+#include "Lexer.h"
+#include "support/CPPUtils.h"
+#include "support/Casts.h"
+
+#include "atn/LexerIndexedCustomAction.h"
+
+using namespace antlr4;
+using namespace antlr4::atn;
+using namespace antlr4::misc;
+using namespace antlrcpp;
+
+namespace {
+
+  bool cachedHashCodeEqual(size_t lhs, size_t rhs) {
+    return lhs == rhs || lhs == 0 || rhs == 0;
+  }
+
+}
+
+LexerIndexedCustomAction::LexerIndexedCustomAction(int offset, Ref<const LexerAction> action)
+    : LexerAction(LexerActionType::INDEXED_CUSTOM, true), _action(std::move(action)), _offset(offset) {}
+
+void LexerIndexedCustomAction::execute(Lexer *lexer) const {
+  // assume the input stream position was properly set by the calling code
+  getAction()->execute(lexer);
+}
+
+size_t LexerIndexedCustomAction::hashCodeImpl() const {
+  size_t hash = MurmurHash::initialize();
+  hash = MurmurHash::update(hash, static_cast<size_t>(getActionType()));
+  hash = MurmurHash::update(hash, getOffset());
+  hash = MurmurHash::update(hash, getAction());
+  return MurmurHash::finish(hash, 3);
+}
+
+bool LexerIndexedCustomAction::equals(const LexerAction &other) const {
+  if (this == std::addressof(other)) {
+    return true;
+  }
+  if (getActionType() != other.getActionType()) {
+    return false;
+  }
+  const auto &lexerAction = downCast<const LexerIndexedCustomAction&>(other);
+  return getOffset() == lexerAction.getOffset() &&
+         cachedHashCodeEqual(cachedHashCode(), lexerAction.cachedHashCode()) &&
+         *getAction() == *lexerAction.getAction();
+}
+
+std::string LexerIndexedCustomAction::toString() const {
+  return "indexedCustom(" + std::to_string(getOffset()) + ", " + getAction()->toString() + ")";
+}