Add comments, remove unwanted whitespace change

1 files changed, 10 insertions, 0 deletions

diff --git a/src/graph.h b/src/graph.h
index 45a6cf8..b290d24 100644
--- a/src/graph.h
+++ b/src/graph.h
@@ -149,12 +149,22 @@ struct Edge {
   /// Return true if all inputs' in-edges are ready.
   bool AllInputsReady() const;
 
+  /// Expand all variables in a command and return it as a string.
+  /// If incl_rsp_file is enabled, the string will also contain the 
+  /// full contents of a response file (if applicable)
   string EvaluateCommand(bool incl_rsp_file = false);  // XXX move to env, take env ptr
   string EvaluateDepFile();
   string GetDescription();
+  
+  /// Does the edge use a response file?
   bool HasRspFile();
+  
+  /// Get the path to the response file
   string GetRspFile();
+
+  /// Get the contents of the response file
   string GetRspFileContent();
+
   bool LoadDepFile(State* state, DiskInterface* disk_interface, string* err);
 
   void Dump();