From 51afe63d0bf22f18b5d520dd3ec36da5130c29da Mon Sep 17 00:00:00 2001
From: Venkatesh-Prasad Ranganath <rvprasad@users.noreply.github.com>
Date: Sat, 28 Dec 2024 18:20:19 -0600
Subject: [PATCH] Format code fragments/references in the error message

---
 spec/std/enumerable_spec.cr | 14 ++++++++------
 src/enumerable.cr           |  8 ++++----
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/spec/std/enumerable_spec.cr b/spec/std/enumerable_spec.cr
index 09d89ddcdf6d..baffa410110e 100644
--- a/spec/std/enumerable_spec.cr
+++ b/spec/std/enumerable_spec.cr
@@ -1373,9 +1373,10 @@ describe "Enumerable" do
         require "prelude"
         [1, 10000000000_u64].sum
         CRYSTAL
-        "Enumerable#sum() and #product() do not support Union types. " +
-        "Instead, use Enumerable#sum(initial) and #product(initial), " +
-        "respectively, with an initial value of the intended type of the call."
+        "`Enumerable#sum()` and `#product()` do not support Union " +
+        "types. Instead, use `Enumerable#sum(initial)` and " +
+        "`#product(initial)`, respectively, with an initial value " +
+        "of the intended type of the call."
     end
 
     it "uses additive_identity from type" do
@@ -1427,9 +1428,10 @@ describe "Enumerable" do
         require "prelude"
         [1, 10000000000_u64].product
         CRYSTAL
-        "Enumerable#sum() and #product() do not support Union types. " +
-        "Instead, use Enumerable#sum(initial) and #product(initial), " +
-        "respectively, with an initial value of the intended type of the call."
+        "`Enumerable#sum()` and `#product()` do not support Union " +
+        "types. Instead, use `Enumerable#sum(initial)` and " +
+        "`#product(initial)`, respectively, with an initial value " +
+        "of the intended type of the call."
     end
   end
 
diff --git a/src/enumerable.cr b/src/enumerable.cr
index 0e87867b28dd..df0e3b9c5652 100644
--- a/src/enumerable.cr
+++ b/src/enumerable.cr
@@ -2299,10 +2299,10 @@ module Enumerable(T)
     def self.first
       {% if X.union? %}
         {{
-          raise("Enumerable#sum() and #product() do not support Union types. " +
-                "Instead, use Enumerable#sum(initial) and #product(initial), " +
-                "respectively, with an initial value of the intended type " +
-                "of the call.")
+          raise("`Enumerable#sum()` and `#product()` do not support Union " +
+                "types. Instead, use `Enumerable#sum(initial)` and " +
+                "`#product(initial)`, respectively, with an initial value " +
+                "of the intended type of the call.")
         }}
       {% else %}
         X