1 files changed, 19 insertions, 0 deletions
diff --git a/third_party/rust/tinystr/src/error.rs b/third_party/rust/tinystr/src/error.rs
new file mode 100644
index 0000000000..7910f8b484
--- /dev/null
+++ b/third_party/rust/tinystr/src/error.rs
@@ -0,0 +1,19 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+use displaydoc::Display;
+
+#[cfg(feature = "std")]
+impl std::error::Error for TinyStrError {}
+
+#[derive(Display, Debug, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum TinyStrError {
+    #[displaydoc("found string of larger length {len} when constructing string of length {max}")]
+    TooLarge { max: usize, len: usize },
+    #[displaydoc("tinystr types do not support strings with null bytes")]
+    ContainsNull,
+    #[displaydoc("attempted to construct TinyStrAuto from a non-ascii string")]
+    NonAscii,
+}