private void StepIntoExtensionMethod(InvocationExpressionSyntax node, InvokedMethod method)
{
if (context.Collector.IsExtensionMethodAlreadyCollected(method.Method, method.ArgumentTypes.First()?.Type))
{
StepOverExtensionMethod(node, method.Method, method.ArgumentTypes.First()?.Type);
}
else
{
context.Collector.StepIntoExtensionMethod(method.Method, method.ArgumentTypes.First()?.Type);
var visitor = new InvocationTreeAnalyzer(context, method.DeclaringSyntaxReference.SyntaxTree.GetSemanticModel(context),
new InvokedMethod(method.Method, method.TargetType, method.ArgumentTypes, method.DeclaringSyntaxReference));
visitor.Visit(method.DeclaringSyntaxReference.GetSyntax());
context.Collector.StepOut();
}
}
private SyntaxNode StepInto(InvocationExpressionSyntax node, InvokedMethod method)
{
if (context.Collector.IsAlreadyCollected(method.Method))
{
return(StepOver(node, method.Method));
}
else
{
context.Collector.StepInto(method.Method);
var visitor = new InvocationTreeAnalyzer(context, method.DeclaringSyntaxReference.SyntaxTree.GetSemanticModel(context),
new InvokedMethod(method.Method, method.TargetType, method.ArgumentTypes, method.DeclaringSyntaxReference));
visitor.Visit(method.DeclaringSyntaxReference.GetSyntax());
context.Collector.StepOut();
return(node);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="InvocationTreeAnalyzer"/> class.
/// </summary>
/// <param name="context">The <see cref="AnalyzeContext"/> tracking information regarding the analysis.</param>
/// <param name="model">A <see cref="SemanticModel"/> for the code being analyzed.</param>
/// <param name="invokedMethod">An <see cref="InvokedMethod"/> instance that represents the method currently being analyzed.</param>
public InvocationTreeAnalyzer(AnalyzeContext context, SemanticModel model, InvokedMethod?invokedMethod)
{
this.context = context;
this.model = model;
this.invokedMethod = invokedMethod.GetValueOrDefault();
}