notedeck

commit 8d5c373e511b08b8c629b1df9b7360d89ba12558
parent d9c130fe7d06ece4b4d851a212290bf14f2aa795
Author: alltheseas <alltheseas@users.noreply.github.com>
Date:   Fri,  2 Jan 2026 09:06:42 -0600

chrome: fix debug mode crash on macOS

The app crashed on startup when built in debug mode (`cargo run`)
but worked fine in release mode (`cargo run --release`).

Root cause: objc2-foundation 0.2.2 (transitive dep from winit) has
incorrect type encoding for NSFastEnumeration - it expects signed
i64 ('q') but macOS returns unsigned u64 ('Q'). In debug mode,
objc2 verifies type encodings at runtime and panics on mismatch.

Fix: Enable the `relax-sign-encoding` feature on objc2 0.5.2, which
allows signed/unsigned type mismatches to pass verification. Adding
objc2 as a direct dependency triggers Cargo's feature unification,
ensuring the feature is enabled for all transitive uses of objc2.

The dependency is gated to macOS only to avoid affecting Linux/Windows
builds where objc2 is not used.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Changelog-Fixed: Fix startup crash in debug mode
Closes: https://github.com/damus-io/notedeck/issues/1211
Closes: https://github.com/damus-io/notedeck/pull/1236
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Signed-off-by: alltheseas <alltheseas@users.noreply.github.com>
Signed-off-by: William Casarin <jb55@jb55.com>

Diffstat:
M
CHANGELOG.md
 | 
1
+
M
Cargo.lock
 | 
1
+
M
crates/notedeck_chrome/Cargo.toml
 | 
6
++++++

3 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -22,6 +22,7 @@
 
 # Fixed
 
+- Fix debug mode crash on macOS due to objc2 type encoding mismatch (alltheseas)
 - Fix timelines sometimes not updating (stale feeds)
 - Fix ui bounciness when loading profile pictures
 - Fix unselectable post replies
diff --git a/Cargo.lock b/Cargo.lock
@@ -3942,6 +3942,7 @@ dependencies = [
  "notedeck_messages",
  "notedeck_notebook",
  "notedeck_ui",
+ "objc2 0.5.2",
  "profiling",
  "puffin",
  "puffin_egui",
diff --git a/crates/notedeck_chrome/Cargo.toml b/crates/notedeck_chrome/Cargo.toml
@@ -62,6 +62,12 @@ tracing-logcat = "0.1.0"
 egui-winit.workspace = true
 android-keyring = { workspace = true }
 
+# Fix debug mode crash on macOS: objc2-foundation 0.2.2 has incorrect type
+# encoding for NSFastEnumeration. The relax-sign-encoding feature allows
+# signed/unsigned mismatches to pass runtime verification.
+[target.'cfg(target_os = "macos")'.dependencies]
+objc2 = { version = "0.5.2", features = ["relax-sign-encoding"] }
+
 [package.metadata.bundle]
 name = "Notedeck"
 short_description = "The nostr browser"