From 990a722852ab22b55db342f93ebe03e6ed122f7f Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Mon, 14 Oct 2024 15:57:44 +0200
Subject: Limit the maximum number of exercises to 999

---
 src/dev/check.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/dev/check.rs')

diff --git a/src/dev/check.rs b/src/dev/check.rs
index 5a7aaed..bd73ec8 100644
--- a/src/dev/check.rs
+++ b/src/dev/check.rs
@@ -17,6 +17,7 @@ use crate::{
     CURRENT_FORMAT_VERSION,
 };
 
+const MAX_N_EXERCISES: usize = 999;
 const MAX_EXERCISE_NAME_LEN: usize = 32;
 
 // Find a char that isn't allowed in the exercise's `name` or `dir`.
@@ -347,6 +348,10 @@ fn check_solutions(
 pub fn check(require_solutions: bool) -> Result<()> {
     let info_file = InfoFile::parse()?;
 
+    if info_file.exercises.len() > MAX_N_EXERCISES {
+        bail!("The maximum number of exercises is {MAX_N_EXERCISES}");
+    }
+
     if cfg!(debug_assertions) {
         // A hack to make `cargo run -- dev check` work when developing Rustlings.
         check_cargo_toml(&info_file.exercises, "dev/Cargo.toml", b"../")?;
-- 
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