CODEWITHSUNDEEP
c#roslyn
ISanych
ISanych

Reputation: 22680

Roslyn Explicit IInstanceReferenceExpression Kind instead of This

When I'm getting IInstanceReferenceExpression operation for type Instance() => this; instance kind is Explicit, but I expect that kind would be This. Am I missing something or this is a bug in Roslyn?

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Semantics;
using System;
using System.Linq;

internal static class so39495857
{
    private static void Main()
    {
        var tree = CSharpSyntaxTree.ParseText(@"
class c
{
    c Instance() => this;
    static void Main() {}
}
");
        var mscorlib = MetadataReference.CreateFromFile(typeof(object).Assembly.Location);
        var compilation = CSharpCompilation.Create(null, new[] { tree }, new[] { mscorlib });
        var model = compilation.GetSemanticModel(tree);
        var node = tree.GetRoot().DescendantNodes().OfType<ArrowExpressionClauseSyntax>().First();
        var operation = model.GetOperation(node);
        var block = (IBlockStatement)operation;
        var @return = (IReturnStatement)block.Statements.First();
        var @this = (IInstanceReferenceExpression)@return.ReturnedValue;
        Console.WriteLine(@this.InstanceReferenceKind);
    }
}

Project on github - https://github.com/isanych/so-39495857

Upvotes: 0

Views: 45

Answers (1)

SLaks
SLaks

Reputation: 887489

That's what Explicit means.

ThisClass is only for VB's MyClass keyword.

Upvotes: 1

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