Logger Generator not able to Resolve Generic Type Constraints

[matthawley]

Description

When using the logger generator on an abstract class that defines a type constraint that is outside of the current scope, it will not compile correctly.

Reproduction Steps

internal abstract partial class AzureHandlerBase<TRequirement> : AuthorizationHandler<TRequirement> 
        where TRequirement : IAuthorizationRequirement
{
    private readonly ILogger _logger;

    protected AzureHandlerBase(ILogger logger) {
        _logger = logger;
    }

    [LoggerMessage(1, LogLevel.Information, "Test")]
    private partial void LogIt();
}

Expected behavior

The generated source code would allow the project to compile cleanly.

Actual behavior

The errors produced are the following:

error CS0246: The type or namespace name 'IAuthorizationRequirement' could not be found (are you missing a using directive or an assembly reference?)
error CS0265: Partial declarations of 'AzureHandlerBase<TRequirement>' have inconsistent constraints for type parameter 'TRequirement'

Regression?

Not that I'm aware of.

Known Workarounds

Fully referencing the type constraint with namespaces allows it to compile:

internal abstract partial class AzureHandlerBase<TRequirement> : AuthorizationHandler<TRequirement> 
        where TRequirement : Microsoft.AspNetCore.Authorization.IAuthorizationRequirement
{
    private readonly ILogger _logger;

    protected AzureHandlerBase(ILogger logger) {
        _logger = logger;
    }

    [LoggerMessage(1, LogLevel.Information, "Test")]
    private partial void LogIt();
}

Configuration

.NET 6
Windows 11

Other information

No response

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Issue Details

---

Description

When using the logger generator on an abstract class that defines a type constraint that is outside of the current scope, it will not compile correctly.

Reproduction Steps

internal abstract partial class AzureHandlerBase<TRequirement> : AuthorizationHandler<TRequirement> 
        where TRequirement : IAuthorizationRequirement
{
    private readonly ILogger _logger;

    protected AzureHandlerBase(ILogger logger) {
        _logger = logger;
    }

    [LoggerMessage(1, LogLevel.Information, "Test")]
    private partial void LogIt();
}

Expected behavior

The generated source code would allow the project to compile cleanly.

Actual behavior

The errors produced are the following:

error CS0246: The type or namespace name 'IAuthorizationRequirement' could not be found (are you missing a using directive or an assembly reference?)
error CS0265: Partial declarations of 'AzureHandlerBase<TRequirement>' have inconsistent constraints for type parameter 'TRequirement'

Regression?

Not that I'm aware of.

Known Workarounds

Fully referencing the type constraint with namespaces allows it to compile:

internal abstract partial class AzureHandlerBase<TRequirement> : AuthorizationHandler<TRequirement> 
        where TRequirement : Microsoft.AspNetCore.Authorization.IAuthorizationRequirement
{
    private readonly ILogger _logger;

    protected AzureHandlerBase(ILogger logger) {
        _logger = logger;
    }

    [LoggerMessage(1, LogLevel.Information, "Test")]
    private partial void LogIt();
}

Configuration

.NET 6
Windows 11

Other information

No response

Author:	matthawley
Assignees:	-
Labels:	untriaged, area-Extensions-Logging
Milestone:	-

[martincostello]

Possible dupe of #58550.