|
public GetUnusedParameters ( Microsoft.CodeAnalysis.CSharp.Syntax.BaseMethodDeclarationSyntax method ) : IEnumerable |
||
| method | Microsoft.CodeAnalysis.CSharp.Syntax.BaseMethodDeclarationSyntax | |
| Результат | IEnumerable |
|
public IEnumerable<ParameterSyntax> GetUnusedParameters(BaseMethodDeclarationSyntax method)
{
if (method.ParameterList.Parameters.Count == 0 || method.Body == null || !method.Body.ChildNodes().Any())
{
return new ParameterSyntax[0];
}
var bodyNodes = method.Body.ChildNodes();
var dataflow = _model.AnalyzeDataFlow(bodyNodes.First(), bodyNodes.Last());
var usedParameterNames = dataflow.DataFlowsIn
.Where(x => x.Kind == SymbolKind.Parameter)
.Select(x => x.Name)
.AsArray();
var unusedParameters = method.ParameterList.Parameters
.Where(p => !usedParameterNames.Contains(p.Identifier.ValueText))
.AsArray();
return unusedParameters;
}
protected override Task<EvaluationResult> EvaluateImpl(SyntaxNode node, SemanticModel semanticModel, Solution solution)
{
var method = (MethodDeclarationSyntax)node;
var analyzer = new SemanticAnalyzer(semanticModel);
if (analyzer.GetUnusedParameters(method).Any())
{
var snippet = method.ToFullString();
return Task.FromResult(new EvaluationResult
{
Snippet = snippet
});
}
return Task.FromResult((EvaluationResult)null);
}
