comment NodeGetter

5f130e41 · Jeromy · ceafd080 · 5f130e41
Commit 5f130e41 authored Jan 27, 2015 by Jeromy
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merkledag.go merkledag.go +4 -0

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--- a/merkledag.go
+++ b/merkledag.go
@@ -228,6 +228,10 @@ type nodePromise struct {
 	ctx   context.Context
 }
+// NodeGetter provides a promise like interface for a dag Node
+// the first call to Get will block until the Node is received
+// from its internal channels, subsequent calls will return the
+// cached node.
 type NodeGetter interface {
 	Get() (*Node, error)
 }