We're unable to compile the MAUI sample AOT:
Sentry.Samples.Maui net9.0-ios failed with 4 error(s) (23.1s) → bin/Release/net9.0-ios/ios-arm64/Sentry.Samples.Maui.dll
/code/sentry-dotnet/samples/Sentry.Samples.Maui/obj/Release/net9.0-ios/ios-arm64/Microsoft.Maui.Controls.SourceGen/Microsoft.Maui.Controls.SourceGen.CodeBehindGenerator/Resources_Styles_Styles.xaml.sg.cs(33): Trim analysis error IL2026: __XamlGeneratedCode__.__Type68A1B57D17E9473E.InitializeComponent(): Using member 'Microsoft.Maui.Controls.Xaml.OnPlatformExtension.Default.get' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. The OnPlatformExtension is not trim safe. Use OnPlatform<T> instead.
/code/sentry-dotnet/samples/Sentry.Samples.Maui/obj/Release/net9.0-ios/ios-arm64/Microsoft.Maui.Controls.SourceGen/Microsoft.Maui.Controls.SourceGen.CodeBehindGenerator/Resources_Styles_Styles.xaml.sg.cs(33): Trim analysis error IL2026: __XamlGeneratedCode__.__Type68A1B57D17E9473E.InitializeComponent(): Using member 'Microsoft.Maui.Controls.Xaml.OnPlatformExtension.Default.set' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. The OnPlatformExtension is not trim safe. Use OnPlatform<T> instead.
/code/sentry-dotnet/samples/Sentry.Samples.Maui/obj/Release/net9.0-ios/ios-arm64/linked/System.Text.Json.dll : error IL3053: Assembly 'System.Text.Json' produced AOT analysis warnings.
It's coming from the binding source generators, which is a bit odd, as the bindings in our Sentry.Samples.Maui project are blindingly simple.
Even more unusual, is that when looking at the generated source code referred to (e.g. Resources_Styles_Styles.xaml.sg.cs(33)) there is a pragma that is supposed to be explicitly ignoring this warning:
[global::System.CodeDom.Compiler.GeneratedCode("Microsoft.Maui.Controls.SourceGen", "1.0.0.0")]
#if NET5_0_OR_GREATER
#endif
private void InitializeComponent()
{
#pragma warning disable IL2026, IL3050 // The body of InitializeComponent will be replaced by XamlC so LoadFromXaml will never be called in production builds
global::Microsoft.Maui.Controls.Xaml.Extensions.LoadFromXaml(this, typeof(__Type68A1B57D17E9473E));
#pragma warning restore IL2026, IL3050
}I don't get the same in a brand new Maui app (although I haven't successfully AOT compiled one of those either - the process seems to run indefinitely... but at least it doesn't give any trim warnings).
There may be something we need to do to "upgrade" our sample from net8.0 to net9.0.
Originally posted by @jamescrosswell in #3729 (comment)
Solution from Tracking Issue
References
We're unable to compile the MAUI sample AOT:
It's coming from the binding source generators, which is a bit odd, as the bindings in our Sentry.Samples.Maui project are blindingly simple.
Even more unusual, is that when looking at the generated source code referred to (e.g.
Resources_Styles_Styles.xaml.sg.cs(33)) there is a pragma that is supposed to be explicitly ignoring this warning:I don't get the same in a brand new Maui app (although I haven't successfully AOT compiled one of those either - the process seems to run indefinitely... but at least it doesn't give any trim warnings).
There may be something we need to do to "upgrade" our sample from net8.0 to net9.0.
Originally posted by @jamescrosswell in #3729 (comment)
Solution from Tracking Issue
References