From 45aec23550074737c25184ea0acb5bd71126254d Mon Sep 17 00:00:00 2001
From: Cedric Beust <cedric@beust.com>
Date: Sun, 11 Oct 2015 19:16:57 -0700
Subject: [PATCH] dump() function for DynamicGraph.

---
 .../com/beust/kobalt/internal/DynamicGraph.kt | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/main/kotlin/com/beust/kobalt/internal/DynamicGraph.kt b/src/main/kotlin/com/beust/kobalt/internal/DynamicGraph.kt
index 2326ea94..7052804f 100644
--- a/src/main/kotlin/com/beust/kobalt/internal/DynamicGraph.kt
+++ b/src/main/kotlin/com/beust/kobalt/internal/DynamicGraph.kt
@@ -4,6 +4,8 @@ import com.beust.kobalt.misc.KobaltLogger
 import com.beust.kobalt.misc.NamedThreadFactory
 import com.beust.kobalt.misc.ToString
 import com.google.common.collect.ArrayListMultimap
+import com.google.common.collect.HashMultimap
+import com.google.common.collect.TreeMultimap
 import java.util.*
 import java.util.concurrent.*
 
@@ -231,5 +233,24 @@ public class DynamicGraph<T> : KobaltLogger {
         result.append("]");
         return result.toString();
     }
+
+    val nodes : Set<T> get() = nodesReady
+
+    fun dump() : String {
+        val result = StringBuffer()
+        val free = arrayListOf<T>()
+        nodesReady.forEach { node ->
+            val d = dependedUpon.get(node)
+            if (d == null || d.isEmpty()) {
+                free.add(node)
+            }
+        }
+
+        result.append("Free: $free").append("\n  Dependencies:\n")
+        dependedUpon.keySet().forEach {
+            result.append("     $it -> ${dependedUpon.get(it)}\n")
+        }
+        return result.toString()
+    }
 }