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Roslyn hits "unreachable" exception when processing type forward to a class containing an extension group

Area-Compilers

Bug

Feature - Extension EverythingThe extension everything featureThe extension everything feature

Status: Open.

Bug

#79894 In dotnet/roslyn;

· tannergooding opened on Aug 13, 2025

Reenable BC30645ERR_InvalidOptionalParameterUsage1b

Area-Compilers

Status: Open.

#74779 In dotnet/roslyn;

· jaredpar opened on Aug 15, 2024

String interpolation of only strings should light-up with string.Concat(params ReadOnlySpan<string>)

Area-Compilers

Bug

Status: Open.

#74538 In dotnet/roslyn;

· stephentoub opened on Jul 24, 2024

A test gap in <code>GetValEscape</code> method

Area-Compilers

Bug

Feature - Ref Fields

Status: Open.

#73549 In dotnet/roslyn;

· AlekseyTs opened on May 17, 2024

OverFlowOnFluentCall_ExtensionMethods is failing

Area-Compilers

Disabled Test

TestTest failures in roslyn-CITest failures in roslyn-CI

Status: Open.

#72678 In dotnet/roslyn;

· 333fred opened on Mar 22, 2024

Enumerators fails to set state to "after" in various scenarios observable with <code>GetEnumerator()</code>

Area-Compilers

Code Gen QualityRoom for improvement in the quality of the compiler's generated codeRoom for improvement in the quality of the compiler's generated code

Status: Open.

#76089 In dotnet/roslyn;

· jcouv opened on Nov 26, 2024

Synthesized delegates allow ref safety holes on the boundary of old and updated rules

Area-Compilers

Feature - Ref Fields

Status: Open.

Bug

#76087 In dotnet/roslyn;

· jjonescz opened on Nov 26, 2024

Missing inputs in the key file

Area-Compilers

Bug

Status: Open.

#65474 In dotnet/roslyn;

· jaredpar opened on Nov 16, 2022

Debug Assert error for __arglist (not handled in ref safety analysis)

Area-Compilers

Bug

Status: Open.

#73732 In dotnet/roslyn;

· bernd5 opened on May 27, 2024

Change bootstrap framework CI leg to be consistent with SDK

Area-Compilers

Bug

Status: Open.

#74303 In dotnet/roslyn;

· jjonescz opened on Jul 9, 2024

OverloadResolutionPriority is not respected on some attribute constructors

Area-Compilers

Feature - Overload Resolution Priority

Status: Open.

Bug

#75985 In dotnet/roslyn;

· AlekseyTs opened on Nov 20, 2024

Suggestion: warn on use of "not A or B" pattern matching syntax

4 - In ReviewA fix for the issue is submitted for review.A fix for the issue is submitted for review.

Area-Compilers

Status: Open.

Bug

#75506 In dotnet/roslyn;

· GrabYourPitchforks opened on Oct 14, 2024

Support <code>ForInvocationWithName</code> in incremental source generators

Area-Compilers

Concept-APIThis issue involves adding, removing, clarification, or modification of an API.This issue involves adding, removing, clarification, or modification of an API.

Feature Request

Status: Open.

Feature

#77887 In dotnet/roslyn;

· captainsafia opened on Mar 28, 2025

Make netfx build task publishing more robust

Area-Compilers

Concept-Design DebtEngineering Debt, Design Debt, or poor product code qualityEngineering Debt, Design Debt, or poor product code quality

Status: Open.

Bug

#78001 In dotnet/roslyn;

· jjonescz opened on Apr 4, 2025

Null resilient props should not get nullable initial state in constructors

Area-Compilers

Feature - Field Keyword

Status: Open.

Bug

#77991 In dotnet/roslyn;

· RikkiGibson opened on Apr 3, 2025

Collection expression arguments: CollectionBuilder items parameter should be last

Feature - Dictionary Expressions

Status: Open.

#77866 In dotnet/roslyn;

· cston opened on Mar 27, 2025

VB BinaryOperators tests failing on macOS 15

Area-Compilers

Disabled Test

Status: Open.

Bug

#77861 In dotnet/roslyn;

· jjonescz opened on Mar 27, 2025

Constant errors regarding "Diagnostic Analyzer runner" crashing

Area-Analyzers

Area-Compilers

Status: Open.

Bug

#78025 In dotnet/roslyn;

· endasil opened on Apr 7, 2025

MSB3883 on *nix when using Microsoft.Net.Compilers package

Area-Compilers

Area-Infrastructure

Status: Open.

#39530 In dotnet/roslyn;

· rainersigwald opened on Oct 25, 2019

Solution.WithDocumentSyntaxRoot throws when analyzer config has non-rooted path

Area-Compilers

Area-IDE

Status: Open.

#41940 In dotnet/roslyn;

· tmat opened on Feb 25, 2020

IDE0270 - Cannot simplify for nullable implicit casts

Area-Compilers

Bug

help wantedThe issue is "up for grabs" - add a comment if you are interested in working on itThe issue is "up for grabs" - add a comment if you are interested in working on it

Status: Open.

#72052 In dotnet/roslyn;

· AdamWillden opened on Feb 11, 2024

IDE0028 raised when initializing a collection from another collection.

Area-Compilers

Bug

Code Gen QualityRoom for improvement in the quality of the compiler's generated codeRoom for improvement in the quality of the compiler's generated code

Feature - Collection Expressions

Status: Open.

#75981 In dotnet/roslyn;

· ericstj opened on Nov 19, 2024

Assertion failed in Microsoft.CodeAnalysis.CSharp.Symbols.SourceNamedTypeSymbol.AfterMembersCompletedChecks

Area-Compilers

Status: Open.

Bug

#78188 In dotnet/roslyn;

· tmat opened on Apr 17, 2025

It looks like we don't have a single test demonstrating significance of the code at <code>RefSafetyAnalysis.GetValEscape</code> <code>case BoundKind.CompoundAssignmentOperator:</code>

Area-Compilers

Feature - Ref Locals and ReturnsRef Locals and ReturnsRef Locals and Returns

Test-GapDescribes a specific feature or scenario that does not have test coverageDescribes a specific feature or scenario that does not have test coverage

Status: Open.

Bug

#78198 In dotnet/roslyn;

· AlekseyTs opened on Apr 18, 2025

CS8618 suggests using <code>required</code> on static properties

Area-Compilers

Concept-Diagnostic ClarityThe issues deals with the ease of understanding of errors and warnings.The issues deals with the ease of understanding of errors and warnings.

Feature - Required MembersRequired properties and fieldsRequired properties and fields

Status: Open.

Bug

#78152 In dotnet/roslyn;

· Blokyk opened on Apr 15, 2025