/// <summary>
/// Вызывается для каждого синтаксического узла в compilation, мы можем
/// проверить узлы и сохранить информацию, полезную для генерации
/// </summary>
public void OnVisitSyntaxNode(SyntaxNode syntaxNode)
{
// любое поле с атрибутом -- кандидат на рассмотрение
if (syntaxNode is FieldDeclarationSyntax fieldDeclarationSyntax &&
fieldDeclarationSyntax.AttributeLists.Count > 0)
{
CandidateFields.Add(fieldDeclarationSyntax);
}
}
public void OnVisitSyntaxNode(SyntaxNode syntaxNode)
{
// Business logic to decide what we're interested in goes here
if (syntaxNode is FieldDeclarationSyntax fds &&
fds.AttributeLists.Count > 0)
{
CandidateFields.Add(fds);
}
// TODO: probably you will be interested in storing information about PrintAllFields method here
}
/// <summary>
/// Called for every syntax node in the compilation, we can inspect the nodes and save any information useful for generation
/// </summary>
public void OnVisitSyntaxNode(GeneratorSyntaxContext context)
{
// any field with at least one attribute is a candidate for property generation
if
(
context.Node is FieldDeclarationSyntax fieldDeclarationSyntax &&
fieldDeclarationSyntax.AttributeLists.Count > 0
)
{
CandidateFields.Add(fieldDeclarationSyntax);
foreach (VariableDeclaratorSyntax variable in fieldDeclarationSyntax.Declaration.Variables)
{
// Get the symbol being declared by the field, and keep it if its annotated
var fieldSymbol = context.SemanticModel.GetDeclaredSymbol(variable) as IFieldSymbol;
if (fieldSymbol.GetAttributes().Any(ad => ad.AttributeClass.ToDisplayString() == "TimeWarp.DelegateAttribute"))
{
Fields.Add(fieldSymbol);
}
}
}
}
