public static ValueWalker Create(SyntaxToken value, SyntaxNode expression)
{
ValueWalker walker;
if (!Cache.TryDequeue(out walker))
{
walker = new ValueWalker();
}
walker.UsesValue = false;
walker.value = value;
if (expression != null)
{
walker.Visit(expression);
}
return(walker);
}
private static bool IsAttachedSetMethod(MethodDeclarationSyntax method, SemanticModel semanticModel, CancellationToken cancellationToken, out IFieldSymbol setField)
{
setField = null;
if (method == null ||
method.ParameterList.Parameters.Count != 2 ||
!method.ReturnType.IsVoid() ||
!method.Modifiers.Any(SyntaxKind.StaticKeyword))
{
return(false);
}
using (var walker = ClrSetterWalker.Create(semanticModel, cancellationToken, method))
{
if (!walker.IsSuccess)
{
return(false);
}
var memberAccess = (walker.SetValue?.Expression ?? walker.SetCurrentValue?.Expression) as MemberAccessExpressionSyntax;
var member = memberAccess?.Expression as IdentifierNameSyntax;
if (memberAccess == null ||
member == null ||
!memberAccess.IsKind(SyntaxKind.SimpleMemberAccessExpression))
{
return(false);
}
if (method.ParameterList.Parameters[0].Identifier.ValueText != member.Identifier.ValueText)
{
return(false);
}
using (var valueWalker = ValueWalker.Create(method.ParameterList.Parameters[1].Identifier, memberAccess.Parent))
{
if (!valueWalker.UsesValue)
{
return(false);
}
}
return(walker.Property.TryGetSymbol(semanticModel, cancellationToken, out setField));
}
}
