dotnet/roslyn

SemanticModel.GetDeclaredSymbol doesn't return the getter symbol for C# expression bodied property initializer

Open

#1,060 opened on Mar 5, 2015

View on GitHub
 (2 comments) (0 reactions) (0 assignees)C# (20,414 stars) (4,257 forks)batch import
Area-CompilersBugConcept-APILanguage-C#help wanted

Description

None of the descendant nodes of expression bodied property in C# returns the getter method symbol for that property when GetDeclaredSymbol is invoked on them. This seems wrong as the getter method symbol has IsImplicityDeclared = false, and also has its declaring syntax node as the ArrowExpressionClauseSyntax.

I think we want to handle GetDeclaredSymbol(ArrowExpressionClauseSyntax) to return the property getter if the given arrow expression is parented by a BasePropertyDeclarationSyntax.

Contributor guide

Tech stack
csharp
Domain
backendapi
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Familiarity with Roslyn's Syntax APIKnowledge of C# expression bodied members
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
15
Research direction
Investigate the implementation of SemanticModel.GetDeclaredSymbol in the Roslyn codebase, specifically in src/Compilers/CSharp/Portable/SemanticModel. The fix likely involves adding a case to return the property getter symbol when the ArrowExpressionClauseSyntax is parented by a BasePropertyDeclarationSyntax. No linked PRs exist, so the contribution would be from scratch.