/// <summary>
/// Evaluates the binding.
/// </summary>
internal object EvaluateBinding(ExpressionEvaluationVisitor visitor, string expression, string pathExpression)
{
// parse
var node = ParseBinding(expression);
var result = visitor.Visit(node);
visitor.BackupCurrentPosition(result, pathExpression);
return result;
}
/// <summary>
/// Resolves the path in the view model and returns the target object.
/// </summary>
private List<object> ResolveViewModelPath(object viewModel, RedwoodControl viewRootControl, string[] path)
{
var visitor = new ExpressionEvaluationVisitor(viewModel, viewRootControl);
var outputHierarchy = new List<object>();
outputHierarchy.Add(viewModel);
foreach (var expression in path)
{
// evaluate path fragment
var pathTree = CSharpSyntaxTree.ParseText(expression, new CSharpParseOptions(LanguageVersion.CSharp5, DocumentationMode.Parse, SourceCodeKind.Interactive));
var pathExpr = pathTree.EnsureSingleExpression();
var result = visitor.Visit(pathExpr);
visitor.BackupCurrentPosition(result, expression);
outputHierarchy.Add(result);
}
return outputHierarchy;
}
