Static Method Code Action: Listing 2

Full GetEdit Method Implementation

Listing 2: StaticMethodCodeAction GetEdit Function
 public ICodeActionEdit GetEdit(System.Threading.CancellationToken cancellationT
{
    var syntaxTree = (SyntaxTree)_document.GetSyntaxTree(cancellationToken);

    var firstToken = _methodDeclaration.GetFirstToken();
    var firstTokenTrivia = firstToken.LeadingTrivia;

    var formattedMethodDeclaration = _methodDeclaration.ReplaceToken(
        firstToken, firstToken.WithLeadingTrivia(Syntax.TriviaList()));

    var staticToken = Syntax.Token(firstTokenTrivia, SyntaxKind.StaticKeyword);

    var newModifiers = Syntax.TokenList(
        new[] { staticToken }.Concat(formattedMethodDeclaration.Modifiers));

    var newMethodDeclaration = formattedMethodDeclaration.Update(
        formattedMethodDeclaration.Attributes,
        newModifiers,
        formattedMethodDeclaration.ReturnType,
        formattedMethodDeclaration.ExplicitInterfaceSpecifierOpt,
        formattedMethodDeclaration.Identifier,
        formattedMethodDeclaration.TypeParameterListOpt,
        formattedMethodDeclaration.ParameterList,
        formattedMethodDeclaration.ConstraintClauses,
        formattedMethodDeclaration.BodyOpt,
        formattedMethodDeclaration.SemicolonTokenOpt);
  
    var formattedLocalDeclaration = CodeActionAnnotations.FormattingAnnotation
        .AddAnnotationTo(newMethodDeclaration);

    var tree = (SyntaxTree)_document.GetSyntaxTree();
    var newRoot = tree.Root.ReplaceNode(_methodDeclaration,
        formattedLocalDeclaration);

    return _editFactory.CreateTreeTransformEdit(_document.Project.Solution,
        syntaxTree, newRoot, cancellationToken: cancellationToken);
}

About the Author

Eric Vogel is a Sr. Software Developer at Kunz, Leigh, & Associates in Okemos, MI. He is the president of the Greater Lansing User Group for .NET. Eric enjoys learning about software architecture and craftsmanship, and is always looking for ways to create more robust and testable applications. Contact him at vogelvision@gmail.com.