1 files changed, 25 insertions, 0 deletions
diff --git a/vendor/handlebars/src/util.rs b/vendor/handlebars/src/util.rs
new file mode 100644
index 000000000..7bfca24ce
--- /dev/null
+++ b/vendor/handlebars/src/util.rs
@@ -0,0 +1,25 @@
+pub(crate) fn empty_or_none<T>(input: &[T]) -> Option<&[T]> {
+    if input.is_empty() {
+        None
+    } else {
+        Some(input)
+    }
+}
+
+#[inline]
+pub(crate) fn copy_on_push_vec<T>(input: &[T], el: T) -> Vec<T>
+where
+    T: Clone,
+{
+    let mut new_vec = Vec::with_capacity(input.len() + 1);
+    new_vec.extend_from_slice(input);
+    new_vec.push(el);
+    new_vec
+}
+
+#[inline]
+pub(crate) fn extend(base: &mut Vec<String>, slice: &[String]) {
+    for i in slice {
+        base.push(i.to_owned());
+    }
+}