1 files changed, 44 insertions, 0 deletions
diff --git a/popperjs/package/dist/esm/utils/orderModifiers.js b/popperjs/package/dist/esm/utils/orderModifiers.js
new file mode 100644
index 0000000..82572bc
--- /dev/null
+++ b/popperjs/package/dist/esm/utils/orderModifiers.js
@@ -0,0 +1,44 @@
+import { modifierPhases } from "../enums.js"; // source: https://stackoverflow.com/questions/49875255
+
+function order(modifiers) {
+  var map = new Map();
+  var visited = new Set();
+  var result = [];
+  modifiers.forEach(function (modifier) {
+    map.set(modifier.name, modifier);
+  }); // On visiting object, check for its dependencies and visit them recursively
+
+  function sort(modifier) {
+    visited.add(modifier.name);
+    var requires = [].concat(modifier.requires || [], modifier.requiresIfExists || []);
+    requires.forEach(function (dep) {
+      if (!visited.has(dep)) {
+        var depModifier = map.get(dep);
+
+        if (depModifier) {
+          sort(depModifier);
+        }
+      }
+    });
+    result.push(modifier);
+  }
+
+  modifiers.forEach(function (modifier) {
+    if (!visited.has(modifier.name)) {
+      // check for visited object
+      sort(modifier);
+    }
+  });
+  return result;
+}
+
+export default function orderModifiers(modifiers) {
+  // order based on dependencies
+  var orderedModifiers = order(modifiers); // order based on phase
+
+  return modifierPhases.reduce(function (acc, phase) {
+    return acc.concat(orderedModifiers.filter(function (modifier) {
+      return modifier.phase === phase;
+    }));
+  }, []);
+}
+\ No newline at end of file