Transfer of provider code

1 files changed, 14 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/dag/set.go b/vendor/github.com/hashicorp/terraform/dag/set.go
index 3929c9d..92b4215 100644
--- a/vendor/github.com/hashicorp/terraform/dag/set.go
+++ b/vendor/github.com/hashicorp/terraform/dag/set.go
@@ -81,6 +81,20 @@ func (s *Set) Difference(other *Set) *Set {
         return result
 }
 
+// Filter returns a set that contains the elements from the receiver
+// where the given callback returns true.
+func (s *Set) Filter(cb func(interface{}) bool) *Set {
+        result := new(Set)
+
+        for _, v := range s.m {
+                if cb(v) {
+                        result.Add(v)
+                }
+        }
+
+        return result
+}
+
 // Len is the number of items in the set.
 func (s *Set) Len() int {
         if s == nil {