some style changes

modules/planning/common/path/discretized_path.cc

@@ -74,11 +74,11 @@ int DiscretizedPath::query_closest_point(const double param) const {
   }
 }
 
-std::vector<common::PathPoint>* DiscretizedPath::mutable_path_points() {
+std::vector<common::PathPoint> *DiscretizedPath::mutable_path_points() {
   return &path_points_;
 }
 
-const std::vector<common::PathPoint>& DiscretizedPath::path_points() const {
+const std::vector<common::PathPoint> &DiscretizedPath::path_points() const {
   return path_points_;
 }
 
@@ -86,7 +86,7 @@ std::size_t DiscretizedPath::num_of_points() const {
   return path_points_.size();
 }
 
-const common::PathPoint& DiscretizedPath::path_point_at(
+const common::PathPoint &DiscretizedPath::path_point_at(
     const std::size_t index) const {
   CHECK_LT(index, path_points_.size());
   return path_points_[index];
@@ -102,14 +102,14 @@ common::PathPoint DiscretizedPath::end_point() const {
   return path_points_.back();
 }
 
-common::PathPoint& DiscretizedPath::path_point_at(const std::size_t index) {
+common::PathPoint &DiscretizedPath::path_point_at(const std::size_t index) {
   CHECK_LT(index, path_points_.size());
   return path_points_[index];
 }
 
 std::vector<common::PathPoint>::const_iterator
 DiscretizedPath::query_lower_bound(const double param) const {
-  auto func = [](const common::PathPoint& tp, const double param) {
+  auto func = [](const common::PathPoint &tp, const double param) {
     return tp.s() < param;
   };
   return std::lower_bound(path_points_.begin(), path_points_.end(), param,

modules/planning/common/path/discretized_path.h

@@ -47,15 +47,15 @@ class DiscretizedPath : public Path {
 
   int query_closest_point(const double param) const;
 
-  std::vector<common::PathPoint>* mutable_path_points();
+  std::vector<common::PathPoint> *mutable_path_points();
 
-  const std::vector<common::PathPoint>& path_points() const;
+  const std::vector<common::PathPoint> &path_points() const;
 
   std::size_t num_of_points() const;
 
-  const common::PathPoint& path_point_at(const std::size_t index) const;
+  const common::PathPoint &path_point_at(const std::size_t index) const;
 
-  common::PathPoint& path_point_at(const std::size_t index);
+  common::PathPoint &path_point_at(const std::size_t index);
 
  private:
   std::vector<common::PathPoint>::const_iterator query_lower_bound(

modules/planning/common/path/frenet_frame_path.cc

@@ -33,27 +33,27 @@ FrenetFramePath::FrenetFramePath(
 }
 
 void FrenetFramePath::set_frenet_points(
-    const std::vector<common::FrenetFramePoint>& points) {
+    const std::vector<common::FrenetFramePoint> &points) {
   points_ = points;
 }
 
-std::vector<common::FrenetFramePoint>* FrenetFramePath::mutable_points() {
+std::vector<common::FrenetFramePoint> *FrenetFramePath::mutable_points() {
   return &points_;
 }
 
-const std::vector<common::FrenetFramePoint>& FrenetFramePath::points() const {
+const std::vector<common::FrenetFramePoint> &FrenetFramePath::points() const {
   return points_;
 }
 
 std::size_t FrenetFramePath::num_points() const { return points_.size(); }
 
-const common::FrenetFramePoint& FrenetFramePath::point_at(
+const common::FrenetFramePoint &FrenetFramePath::point_at(
     const std::size_t index) const {
   CHECK_LT(index, points_.size());
   return points_[index];
 }
 
-common::FrenetFramePoint& FrenetFramePath::point_at(const std::size_t index) {
+common::FrenetFramePoint &FrenetFramePath::point_at(const std::size_t index) {
   CHECK_LT(index, points_.size());
   return points_[index];
 }

modules/planning/common/path/frenet_frame_path.h

@@ -36,17 +36,17 @@ class FrenetFramePath {
 
   virtual ~FrenetFramePath() = default;
 
-  void set_frenet_points(const std::vector<common::FrenetFramePoint>& points);
+  void set_frenet_points(const std::vector<common::FrenetFramePoint> &points);
 
-  std::vector<common::FrenetFramePoint>* mutable_points();
+  std::vector<common::FrenetFramePoint> *mutable_points();
 
-  const std::vector<common::FrenetFramePoint>& points() const;
+  const std::vector<common::FrenetFramePoint> &points() const;
 
   std::size_t num_points() const;
 
-  const common::FrenetFramePoint& point_at(const std::size_t index) const;
+  const common::FrenetFramePoint &point_at(const std::size_t index) const;
 
-  common::FrenetFramePoint& point_at(const std::size_t index);
+  common::FrenetFramePoint &point_at(const std::size_t index);
 
  private:
   std::vector<common::FrenetFramePoint> points_;