First commit

runtime-linux/antlr4-runtime/atn/LexerIndexedCustomAction.cpp

@@ -0,0 +1,63 @@
+/* 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 "atn/LexerIndexedCustomAction.h"
+
+using namespace antlr4;
+using namespace antlr4::atn;
+using namespace antlr4::misc;
+
+LexerIndexedCustomAction::LexerIndexedCustomAction(int offset, Ref<LexerAction> const& action)
+  : _offset(offset), _action(action) {
+}
+
+int LexerIndexedCustomAction::getOffset() const {
+  return _offset;
+}
+
+Ref<LexerAction> LexerIndexedCustomAction::getAction() const {
+  return _action;
+}
+
+LexerActionType LexerIndexedCustomAction::getActionType() const {
+  return _action->getActionType();
+}
+
+bool LexerIndexedCustomAction::isPositionDependent() const {
+  return true;
+}
+
+void LexerIndexedCustomAction::execute(Lexer *lexer) {
+  // assume the input stream position was properly set by the calling code
+  _action->execute(lexer);
+}
+
+size_t LexerIndexedCustomAction::hashCode() const {
+  size_t hash = MurmurHash::initialize();
+  hash = MurmurHash::update(hash, _offset);
+  hash = MurmurHash::update(hash, _action);
+  return MurmurHash::finish(hash, 2);
+}
+
+bool LexerIndexedCustomAction::operator == (const LexerAction &obj) const {
+  if (&obj == this) {
+    return true;
+  }
+
+  const LexerIndexedCustomAction *action = dynamic_cast<const LexerIndexedCustomAction *>(&obj);
+  if (action == nullptr) {
+    return false;
+  }
+
+  return _offset == action->_offset && *_action == *action->_action;
+}
+
+std::string LexerIndexedCustomAction::toString() const {
+  return antlrcpp::toString(this);
+}