1 files changed, 57 insertions, 0 deletions
diff --git a/vendor/twbs/bootstrap/js/src/dom/data.js b/vendor/twbs/bootstrap/js/src/dom/data.js
new file mode 100644
index 000000000..c702fc82c
--- /dev/null
+++ b/vendor/twbs/bootstrap/js/src/dom/data.js
@@ -0,0 +1,57 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v5.1.3): dom/data.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const elementMap = new Map()
+
+export default {
+  set(element, key, instance) {
+    if (!elementMap.has(element)) {
+      elementMap.set(element, new Map())
+    }
+
+    const instanceMap = elementMap.get(element)
+
+    // make it clear we only want one instance per element
+    // can be removed later when multiple key/instances are fine to be used
+    if (!instanceMap.has(key) && instanceMap.size !== 0) {
+      // eslint-disable-next-line no-console
+      console.error(`Bootstrap doesn't allow more than one instance per element. Bound instance: ${Array.from(instanceMap.keys())[0]}.`)
+      return
+    }
+
+    instanceMap.set(key, instance)
+  },
+
+  get(element, key) {
+    if (elementMap.has(element)) {
+      return elementMap.get(element).get(key) || null
+    }
+
+    return null
+  },
+
+  remove(element, key) {
+    if (!elementMap.has(element)) {
+      return
+    }
+
+    const instanceMap = elementMap.get(element)
+
+    instanceMap.delete(key)
+
+    // free up element references if there are no instances left for an element
+    if (instanceMap.size === 0) {
+      elementMap.delete(element)
+    }
+  }
+}