private async Task <Solution> UseImplicitTyping(
Document document, VariableDeclarationSyntax declaration, CancellationToken cancellationToken)
{
var typeSyntax = SyntaxFactory.ParseTypeName("var");
var newDeclaration = declaration
.WithType(typeSyntax)
.WithLeadingTrivia(declaration.GetLeadingTrivia())
.WithTrailingTrivia(declaration.GetTrailingTrivia());
var syntaxRoot = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
syntaxRoot = syntaxRoot.ReplaceNode(declaration, newDeclaration);
syntaxRoot = syntaxRoot.Format();
return(document.WithSyntaxRoot(syntaxRoot).Project.Solution);
}
private async Task <Solution> UseExplicitTyping(
Document document,
VariableDeclarationSyntax declaration, ITypeSymbol variableType,
CancellationToken cancellationToken)
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var typeName = variableType.ToMinimalDisplayString(semanticModel, declaration.SpanStart);
var typeSyntax = SyntaxFactory.ParseTypeName(typeName);
var newDeclaration = declaration
.WithType(typeSyntax)
.WithLeadingTrivia(declaration.GetLeadingTrivia())
.WithTrailingTrivia(declaration.GetTrailingTrivia());
var syntaxRoot = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
syntaxRoot = syntaxRoot.ReplaceNode(declaration, newDeclaration);
syntaxRoot = syntaxRoot.Format();
return(document.WithSyntaxRoot(syntaxRoot).Project.Solution);
}