Exceptions during razor views rendering don't show the source line

[sebastienros]

Can repro in a new WebApp from template.

Repro:

• Update Index.cshtml with @(((string)null).ToString()

Result:

Expected:
It should display the line number where the exception occurred.

NB:

• Looking at the sourceTree value the line numbers are generated in the razor source.
• This scenario should be added in release checks

[pranavkm]

Seems like an issue with compiling using the PortablePdb switch. I asked the Roslyn folks at dotnet/roslyn#11535 for guidance on this.

[pranavkm]

The issue's been fixed for RTM - https://github.com/dotnet/coreclr/issues/3906. We're working on picking up the packages now so this is likely to get fixed soon. I filed aspnet/Mvc#4737 to add a functional test to verify this behavior is covered.

[pranavkm]

The RC3 packages fix this issue in netcoreapp, but it's broken on desktop. I guess we could generate full pdbs if the right components are present. @davidfowl, does that sound ok?

[dougbu]

@pranavkm why is dotnet/coreclr#3906 considered closed if the problem is only fixed when using .NET core? Have you filed a CoreFx bug for full desktop support?

[pranavkm]

@davidfowl's going to commonize the pdb reader (#300) and use it in Hosting and Diagnostics. I'll check in the test part of aspnet/Mvc@73ddec7 once this is done to get some e2e coverage.