Finding Boxing calls using Roslyn

avoidBoxing.linq

//Avoid Boxing

var code = @"public void fun(){int x = 32;
object o = x;}";

var tree = CSharpSyntaxTree.ParseText(code);



//x - Int
//o -> object
//
var objects = tree.GetRoot()
                  .DescendantNodes()
				  .OfType<VariableDeclarationSyntax>()
				  .SelectMany(aes =>

					   aes.Variables.Select(v =>
					   new { Type = aes.GetFirstToken().ValueText,  
					     Name = v.Identifier.ValueText,
						 Value  = aes.GetLastToken().ValueText})
					
				  );
	var defaulters = objects.Where(aes => aes.Type == "object" && 
	                      objects.FirstOrDefault(d => d.Name == aes.Value
						    && d.Type!="object") != null )
				  .Dump();