Logging Source Generator causes errors and warnings for messages using formatting specifiers #62572
Description
Description
When using formatting specifiers in log message templates like {@Data} or {$Data}, the logging source generator logs warnings and errors but should compile fine.
Reproduction Steps
using Microsoft.Extensions.Logging;
public static partial class Extensions
{
public static void LogPerson(this ILogger logger, Person person)
=> logger.LogInformation("The person is {@Person}", person);
[LoggerMessage(Level = LogLevel.Information, Message = "The person is {@Person}")]
public static partial void OtherLogPerson(this ILogger logger, Person person);
}
public record Person(string FirstName, string LastName)
{
public override string ToString() => $"Person({FirstName} {LastName})";
}Depending on the formatter used (NLog/Serilog/inbox console) there should be a difference when using {@Person} vs {Person} (in some cases {$Person})
Expected behavior
The code should compile without warnings or errors.
Actual behavior
SYSLIB1015 and SYSLIB1014 diagnostics and CS0119 error:
C:\demos\LoggingGeneratorFormatErrorExample\Class1.cs(9,75): warning SYSLIB1015: Argument 'person' is not referenced from the logging message [C:\demos\LoggingGeneratorFormatErrorExample\LoggingGeneratorErrorExample.csproj]
C:\demos\LoggingGeneratorFormatErrorExample\Class1.cs(8,6): error SYSLIB1014: Template '@Person' is not provided as argument to the logging method [C:\demos\LoggingGeneratorFormatErrorExample\LoggingGeneratorErrorExample.csproj]
C:\demos\LoggingGeneratorFormatErrorExample\Microsoft.Extensions.Logging.Generators\Microsoft.Extensions.Logging.Generators.LoggerMessageGenerator\LoggerMessage.g.cs(20,41): error CS0119: 'Person' is a type, which is not valid in the given context [C:\demos\LoggingGeneratorFormatErrorExample\LoggingGeneratorErrorExample.csproj]
Configuration
.NET 6 class library with 6.0.0 Microsoft.Extensions.Logging nuget pacakge