Canvas.moveTo + moveRelativeTo crashes #146362
Description
A simple Canvas.moveTo + moveRelativeTo crashes in my app. By crash, I mean the app exits and I'm back at home screen in the simulator. I managed to get a minimum reproducible example. I run Flutter 3.19.5 on macOS, I use iPhone SE (3rd gen) iOS 17.4 Simulator.
My observations:
- paint is irrelevant
- without initial
moveToit doesn't crash - the values in
moveRelativeToare important. It doesn't always crash
[✓] Flutter (Channel stable, 3.19.5, on macOS 14.1.1 23B81 darwin-arm64, locale en-PL)
• Flutter version 3.19.5 on channel stable at /Users/albert/fvm/versions/3.19.5
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 300451adae (9 days ago), 2024-03-27 21:54:07 -0500
• Engine revision e76c956498
• Dart version 3.3.3
• DevTools version 2.31.1
[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
• Xcode at /Applications/Xcode-15.3.0.app/Contents/Developer
• Build 15E204a
• CocoaPods version 1.15.2
[✓] Connected device (4 available)
• iPhone SE (3rd generation) (mobile) • 20FE85C5-72CD-4EC7-A5DB-1B9B467FF8AF • ios • com.apple.CoreSimulator.SimRuntime.iOS-17-4 (simulator)
import 'package:flutter/material.dart';
void main() async {
runApp(
Center(
child: CustomPaint(
size: const Size(100, 100),
painter: _Painter(),
),
),
);
}
class _Painter extends CustomPainter {
@override
void paint(Canvas canvas, Size size) {
final path = Path()
..moveTo(0, 0)
..relativeMoveTo(10, 10);
canvas.drawPath(path, Paint());
}
@override
bool shouldRepaint(_Painter oldDelegate) => false;
}I don't get any crash log for this small example (maybe because it's right after launching the app?) but in the context of my real application I got a crash log below.
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