From d690814b161ad6f005a551c6004d0fe13feb4949 Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Sun, 28 Apr 2024 12:23:08 -0700
Subject: [PATCH] Core: fix potential printTitle leak

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 src/Core.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Core.zig b/src/Core.zig
index a3013ef1..35f6a161 100644
--- a/src/Core.zig
+++ b/src/Core.zig
@@ -66,6 +66,11 @@ pub fn printTitle(
     comptime fmt: []const u8,
     args: anytype,
 ) !void {
+    // Free any previous window title slice
+    // TODO: reuse allocations
+    if (core.get(window_id, .title)) |slice| core.state().allocator.free(slice);
+
+    // Allocate and assign a new window title slice.
     const slice = try std.fmt.allocPrintZ(core.state().allocator, fmt, args);
     try core.set(window_id, .title, slice);
 }