From 71ca909008c70c54cc15ccf39bcd375a1692b92d Mon Sep 17 00:00:00 2001
From: Jarred Sumner <jarred@jarredsumner.com>
Date: Fri, 11 Feb 2022 19:04:05 -0800
Subject: another assertion

---
 src/string_builder.zig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/string_builder.zig')

diff --git a/src/string_builder.zig b/src/string_builder.zig
index 610ddd00f..98ef5ab9b 100644
--- a/src/string_builder.zig
+++ b/src/string_builder.zig
@@ -39,5 +39,8 @@ pub fn fmt(this: *StringBuilder, comptime str: string, args: anytype) string {
     var buf = this.ptr.?[this.len..this.cap];
     const out = std.fmt.bufPrint(buf, str, args) catch unreachable;
     this.len += out.len;
+
+    assert(this.len <= this.cap);
+
     return out;
 }
-- 
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