From 247ab148248bff63bd24c352a34f63d73da1b2f3 Mon Sep 17 00:00:00 2001
From: Tobias Schmitz <tobiasschmitz2001@gmail.com>
Date: Thu, 26 Mar 2026 10:37:23 +0100
Subject: [PATCH] Add `ToEcoString` trait

---
 src/string.rs  | 15 +++++++++++++++
 tests/tests.rs |  7 +++++++
 2 files changed, 22 insertions(+)

diff --git a/src/string.rs b/src/string.rs
index c393385..8c62579 100644
--- a/src/string.rs
+++ b/src/string.rs
@@ -594,6 +594,21 @@ impl FromStr for EcoString {
     }
 }
 
+/// A trait for converting a value to an [`EcoString`].
+///
+/// This trait is automatically implemented for any type which implements the
+/// [`Display`] trait.
+pub trait ToEcoString {
+    /// Converts the given value to an [`EcoString`].
+    fn to_eco_string(&self) -> EcoString;
+}
+
+impl<T: Display + ?Sized> ToEcoString for T {
+    fn to_eco_string(&self) -> EcoString {
+        eco_format!("{self}")
+    }
+}
+
 #[cold]
 const fn exceeded_inline_capacity() -> ! {
     panic!("exceeded inline capacity");
diff --git a/tests/tests.rs b/tests/tests.rs
index fdbd958..79aa890 100644
--- a/tests/tests.rs
+++ b/tests/tests.rs
@@ -9,6 +9,7 @@ use std::fmt::Write;
 use std::mem;
 use std::sync::atomic::{AtomicUsize, Ordering::*};
 
+use ecow::string::ToEcoString;
 use ecow::{eco_vec, EcoString, EcoVec};
 
 const ALPH: &str = "abcdefghijklmnopqrstuvwxyz";
@@ -625,3 +626,9 @@ fn test_str_complex() {
     assert_eq!(hash_map.get("foo").unwrap(), &["bar".into(), "foo".into(), "foo".into()]);
     assert_eq!(hash_map.get("bar").unwrap(), &["bar".into()]);
 }
+
+#[test]
+fn test_str_to_eco_string() {
+    let num = 123456789;
+    assert_eq!(num.to_eco_string(), "123456789");
+}