From 3a523c3c8ac1bf9094dbe65a6f53b71085438c0c Mon Sep 17 00:00:00 2001
From: main <main@swarm.moe>
Date: Fri, 20 Mar 2026 23:31:29 -0400
Subject: Open the metric unit vocabulary

---
 crates/fidget-spinner-core/src/error.rs | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'crates/fidget-spinner-core/src/error.rs')

diff --git a/crates/fidget-spinner-core/src/error.rs b/crates/fidget-spinner-core/src/error.rs
index a095f57..67db8bd 100644
--- a/crates/fidget-spinner-core/src/error.rs
+++ b/crates/fidget-spinner-core/src/error.rs
@@ -4,6 +4,12 @@ use thiserror::Error;
 pub enum CoreError {
     #[error("text values must not be blank")]
     EmptyText,
+    #[error("metric units must not be blank")]
+    EmptyMetricUnit,
+    #[error(
+        "invalid metric unit `{0}`; expected a built-in unit like `microseconds` or a lowercase ascii token"
+    )]
+    InvalidMetricUnit(String),
     #[error("tag names must not be blank")]
     EmptyTagName,
     #[error(
-- 
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