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Implement declaring parameters in refactors, quick fixes, and assists

Status: Open.

#62399 In dart-lang/sdk;

· munificent opened on Jan 13, 2026

Some message text associated with "wrong number of type arguments" errors is confusing or unclear.

area-dart-modelFor issues related to conformance to the language spec in the parser, compilers or the CLI analyzer.For issues related to conformance to the language spec in the parser, compilers or the CLI analyzer.

model-messagesPoor/undesirable messaging in errors/warnings emitted by the analyzer and/or CFE.Poor/undesirable messaging in errors/warnings emitted by the analyzer and/or CFE.

Status: Open.

#62398 In dart-lang/sdk;

· stereotype441 opened on Jan 13, 2026

No completion between <code>..</code>

area-devexpFor issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.For issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.

devexp-completionIssues with the analysis server's code completion featureIssues with the analysis server's code completion feature

P2A bug or feature request we're likely to work onA bug or feature request we're likely to work on

type-bugIncorrect behavior (everything from a crash to more subtle misbehavior)Incorrect behavior (everything from a crash to more subtle misbehavior)

Status: Open.

#62397 In dart-lang/sdk;

· scheglov opened on Jan 13, 2026

"Bad state:: No type:: num" exception with primary constructors

area-dart-modelFor issues related to conformance to the language spec in the parser, compilers or the CLI analyzer.For issues related to conformance to the language spec in the parser, compilers or the CLI analyzer.

type-bugIncorrect behavior (everything from a crash to more subtle misbehavior)Incorrect behavior (everything from a crash to more subtle misbehavior)

Status: Open.

#62396 In dart-lang/sdk;

· DanTup opened on Jan 13, 2026

Decide on the target location for a primary constructor in symbol lists

area-devexpFor issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.For issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.

Status: Open.

#62395 In dart-lang/sdk;

· DanTup opened on Jan 13, 2026

many_isolates_blocked_at_process_run_sync_test timed out on vm-reload-rollback-linux-debug-x64

area-vmUse area-vm for VM related issues, including code coverage, and the AOT and JIT backends.Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends.

gardening

Status: Open.

#62392 In dart-lang/sdk;

· aam opened on Jan 12, 2026

Show call hierarchy doesn't work on unnamed constructor

area-devexpFor issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.For issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.

devexp-serverIssues related to some aspect of the analysis serverIssues related to some aspect of the analysis server

P3A lower priority bug or feature requestA lower priority bug or feature request

type-bugIncorrect behavior (everything from a crash to more subtle misbehavior)Incorrect behavior (everything from a crash to more subtle misbehavior)

Status: Open.

#62391 In dart-lang/sdk;

· FMorschel opened on Jan 12, 2026

"Unhandled parameter type: DefaultFormalParameterImpl" in DartUnitOutlineComputer

area-devexpFor issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.For issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.

Status: Open.

#62390 In dart-lang/sdk;

· DanTup opened on Jan 12, 2026

Quick fix for <code>unrelated_type_equality_checks</code> when variable <code>==</code>/<code>!=</code> <code>Type</code>

area-devexpFor issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.For issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.

devexp-quick-fixIssues with analysis server (quick) fixesIssues with analysis server (quick) fixes

P3A lower priority bug or feature requestA lower priority bug or feature request

type-enhancementA request for a change that isn't a bugA request for a change that isn't a bug

Status: Open.

#62388 In dart-lang/sdk;

· FMorschel opened on Jan 12, 2026

Add link to package under <code>plugins</code> key in <code>analysis_options.yaml</code>

area-devexpFor issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.For issues related to the analysis server, IDE support, linter, `dart fix`, and diagnostic messages.

devexp-navigation

devexp-plugin

P3A lower priority bug or feature requestA lower priority bug or feature request

type-enhancementA request for a change that isn't a bugA request for a change that isn't a bug

Status: Open.

#62387 In dart-lang/sdk;

· FMorschel opened on Jan 12, 2026

[spec_parser] Metadata/record type ambiguity when whitespace separates annotation from parentheses

Status: Open.

#62384 In dart-lang/sdk;

· modulovalue opened on Jan 9, 2026

Incorrect error in extension type with both setter and method in superinterfaces

area-dart-modelFor issues related to conformance to the language spec in the parser, compilers or the CLI analyzer.For issues related to conformance to the language spec in the parser, compilers or the CLI analyzer.

dart-model-analyzer-packageIssues related to package:analyzerIssues related to package:analyzer

dart-model-analyzer-specIssues with the analyzer's implementation of the language specIssues with the analyzer's implementation of the language spec

type-bugIncorrect behavior (everything from a crash to more subtle misbehavior)Incorrect behavior (everything from a crash to more subtle misbehavior)

Status: Open.

#62382 In dart-lang/sdk;

· lrhn opened on Jan 9, 2026