Merge pull request #38 from ethul/topic/dependency-graph

Topic/dependency graph

1 files changed, 20 insertions, 0 deletions

diff --git a/src/PursLoader/Plugin.js b/src/PursLoader/Plugin.js
new file mode 100644
index 0000000..90feb33
--- /dev/null
+++ b/src/PursLoader/Plugin.js
@@ -0,0 +1,20 @@
+'use strict';
+
+// module PursLoader.Plugin
+
+function getFn(nothing, just, map, key) {
+  var value = map.get(key);
+  return value === undefined ? nothing : just(value);
+}
+exports.getFn = getFn;
+
+function dependenciesOfFn(left, right, graph, node) {
+  try {
+    var dependencies = graph.dependenciesOf(node);
+    return right(dependencies);
+  }
+  catch (error) {
+    return left(error);
+  }
+}
+exports.dependenciesOfFn = dependenciesOfFn;