add antlr source code and ReadMeHEADmain

1 files changed, 55 insertions, 0 deletions

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerChannelAction.cpp b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerChannelAction.cpp
new file mode 100644
index 0000000..959beab
--- /dev/null
+++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerChannelAction.cpp
@@ -0,0 +1,55 @@
+/* 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 "atn/LexerChannelAction.h"
+
+using namespace antlr4::atn;
+using namespace antlr4::misc;
+
+LexerChannelAction::LexerChannelAction(int channel) : _channel(channel) {
+}
+
+int LexerChannelAction::getChannel() const {
+  return _channel;
+}
+
+LexerActionType LexerChannelAction::getActionType() const {
+  return LexerActionType::CHANNEL;
+}
+
+bool LexerChannelAction::isPositionDependent() const {
+  return false;
+}
+
+void LexerChannelAction::execute(Lexer *lexer) {
+  lexer->setChannel(_channel);
+}
+
+size_t LexerChannelAction::hashCode() const {
+  size_t hash = MurmurHash::initialize();
+  hash = MurmurHash::update(hash, static_cast<size_t>(getActionType()));
+  hash = MurmurHash::update(hash, _channel);
+  return MurmurHash::finish(hash, 2);
+}
+
+bool LexerChannelAction::operator == (const LexerAction &obj) const {
+  if (&obj == this) {
+    return true;
+  }
+
+  const LexerChannelAction *action = dynamic_cast<const LexerChannelAction *>(&obj);
+  if (action == nullptr) {
+    return false;
+  }
+
+  return _channel == action->_channel;
+}
+
+std::string LexerChannelAction::toString() const {
+  return "channel(" + std::to_string(_channel) + ")";
+}