DBC parser initial commit.

dbc_tree_builder.cpp

@@ -0,0 +1,20 @@
+#include "dbc_tree_builder.h"
+
+std::unique_ptr<TreeNode> DbcTreeBuilder::Build (const DbcDatabase &database) const {
+  std::unique_ptr<TreeNode> root (new TreeNode());
+
+  for (std::size_t frameIndex = 0U; frameIndex < database.frames.size(); ++frameIndex) {
+    const FrameInfo &frame = database.frames[frameIndex];
+    std::unique_ptr<TreeNode> frameNode (new TreeNode (frame));
+
+    for (std::size_t signalIndex = 0U; signalIndex < frame.signals.size(); ++signalIndex) {
+      const SignalInfo &signal = frame.signals[signalIndex];
+      std::unique_ptr<TreeNode> signalNode (new TreeNode (signal));
+      frameNode->AddChild (std::move (signalNode));
+    }
+
+    root->AddChild (std::move (frameNode));
+  }
+
+  return root;
+}