public static async Task ComputeRefactoringAsync(
RefactoringContext context,
LocalDeclarationStatementSyntax localDeclaration)
{
if (localDeclaration.IsEmbedded())
{
return;
}
SingleLocalDeclarationStatementInfo localInfo = SyntaxInfo.SingleLocalDeclarationStatementInfo(localDeclaration);
if (!localInfo.Success)
{
return;
}
if (!context.Span.IsEmptyAndContainedInSpan(localInfo.EqualsToken))
{
return;
}
ExpressionSyntax value = localInfo.Initializer?.Value;
if (value == null)
{
return;
}
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
TypeSyntax type = localInfo.Type;
if (type.IsVar)
{
ITypeSymbol typeSymbol = semanticModel.GetTypeSymbol(value, context.CancellationToken);
if (typeSymbol?.SupportsExplicitDeclaration() != true)
{
return;
}
type = typeSymbol.ToMinimalTypeSyntax(semanticModel, type.SpanStart);
}
else
{
ITypeSymbol typeSymbol = semanticModel.GetTypeSymbol(type, context.CancellationToken);
if (typeSymbol?.IsErrorType() != false)
{
return;
}
}
context.RegisterRefactoring(
"Split declaration and initialization",
f => RefactorAsync(context.Document, localInfo, type, f));
}