1 files changed, 12 insertions, 0 deletions
diff --git a/node_modules/babel-traverse/lib/path/ancestry.js b/node_modules/babel-traverse/lib/path/ancestry.js
index 30f675b04..2a8c32272 100644
--- a/node_modules/babel-traverse/lib/path/ancestry.js
+++ b/node_modules/babel-traverse/lib/path/ancestry.js
@@ -13,6 +13,8 @@ exports.getStatementParent = getStatementParent;
 exports.getEarliestCommonAncestorFrom = getEarliestCommonAncestorFrom;
 exports.getDeepestCommonAncestorFrom = getDeepestCommonAncestorFrom;
 exports.getAncestry = getAncestry;
+exports.isAncestor = isAncestor;
+exports.isDescendant = isDescendant;
 exports.inType = inType;
 exports.inShadow = inShadow;
 
@@ -181,6 +183,16 @@ function getAncestry() {
   return paths;
 }
 
+function isAncestor(maybeDescendant) {
+  return maybeDescendant.isDescendant(this);
+}
+
+function isDescendant(maybeAncestor) {
+  return !!this.findParent(function (parent) {
+    return parent === maybeAncestor;
+  });
+}
+
 function inType() {
   var path = this;
   while (path) {