From 3e38a4fc844e572ee0a8b5cb61558763de0f2157 Mon Sep 17 00:00:00 2001
From: Manlio Perillo <manlio.perillo@gmail.com>
Date: Sat, 20 May 2023 07:21:11 +0200
Subject: [PATCH] build: in `ZiglingStep.check_output` panic in case of OOM

This is necessary since, when trimLines returns `std.mem.Allocator.Error`,
no error message will be displayed to the user.

An alternative is to use `std.Build.Step.fail`, but using @panic("OOM")
is simpler and consistent with existing code.
---
 build.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.zig b/build.zig
index 1823919..9b8a1ee 100644
--- a/build.zig
+++ b/build.zig
@@ -304,7 +304,7 @@ const ZiglingStep = struct {
         // Validate the output.
         // NOTE: exercise.output can never contain a CR character.
         // See https://ziglang.org/documentation/master/#Source-Encoding.
-        const output = try trimLines(b.allocator, raw_output);
+        const output = trimLines(b.allocator, raw_output) catch @panic("OOM");
         const exercise_output = self.exercise.output;
         if (!std.mem.eql(u8, output, self.exercise.output)) {
             return self.step.fail(