Improving Edge::Dump, introducing Node::Dump

- Edge::Dump could crash if called while inputs_ is being extended
- Node::Dump prints Node attributes, in-edge and lists of out-edges
- Dump functions now accept "prefix" parameter, printed along with the object
  for easier orientation. For example, edge->Dump("Re-reading deps files").

1 files changed, 3 insertions, 1 deletions

diff --git a/src/graph.h b/src/graph.h
index 32a859d..0ef4f3f 100644
--- a/src/graph.h
+++ b/src/graph.h
@@ -77,6 +77,8 @@ struct Node {
   const vector<Edge*>& out_edges() const { return out_edges_; }
   void AddOutEdge(Edge* edge) { out_edges_.push_back(edge); }
 
+  void Dump(const char* prefix="") const;
+
 private:
   string path_;
   /// Possible values of mtime_:
@@ -173,7 +175,7 @@ struct Edge {
 
   bool LoadDepFile(State* state, DiskInterface* disk_interface, string* err);
 
-  void Dump();
+  void Dump(const char* prefix="") const;
 
   const Rule* rule_;
   vector<Node*> inputs_;