add antlr source code and ReadMe

[toc] / antlr4-cpp-runtime-4.9.2-source / runtime / src / atn / LexerTypeAction.cpp

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerTypeAction.cpp b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerTypeAction.cpp
new file mode 100644 (file)
index 0000000..006778a
--- /dev/null
+++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerTypeAction.cpp
@@ -0,0 +1,56 @@
+/* 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/LexerTypeAction.h"
+
+using namespace antlr4;
+using namespace antlr4::atn;
+using namespace antlr4::misc;
+
+LexerTypeAction::LexerTypeAction(int type) : _type(type) {
+}
+
+int LexerTypeAction::getType() const {
+  return _type;
+}
+
+LexerActionType LexerTypeAction::getActionType() const {
+  return LexerActionType::TYPE;
+}
+
+bool LexerTypeAction::isPositionDependent() const {
+  return false;
+}
+
+void LexerTypeAction::execute(Lexer *lexer) {
+  lexer->setType(_type);
+}
+
+size_t LexerTypeAction::hashCode() const {
+  size_t hash = MurmurHash::initialize();
+  hash = MurmurHash::update(hash, static_cast<size_t>(getActionType()));
+  hash = MurmurHash::update(hash, _type);
+  return MurmurHash::finish(hash, 2);
+}
+
+bool LexerTypeAction::operator == (const LexerAction &obj) const {
+  if (&obj == this) {
+    return true;
+  }
+
+  const LexerTypeAction *action = dynamic_cast<const LexerTypeAction *>(&obj);
+  if (action == nullptr) {
+    return false;
+  }
+
+  return _type == action->_type;
+}
+
+std::string LexerTypeAction::toString() const {
+  return "type(" + std::to_string(_type) + ")";
+}