private static IEnumerable<string> DeclaredIdentifiers(MethodDeclarationSyntax syntax)
{
var methodParameterNames = syntax.ParameterList.Parameters
.Select(p => p.Identifier.ValueText);
var methodLocalVars = syntax
.DescendantNodes()
.OfType<LocalDeclarationStatementSyntax>()
.SelectMany(d => d.Declaration.Variables)
.Select(v => v.Identifier.ValueText);
var classFieldIds = syntax.ContainingClass()
.DescendantNodes()
.OfType<FieldDeclarationSyntax>()
.SelectMany(f => f.Declaration.Variables)
.Select(v => v.Identifier.ValueText);
var classPropertyIds = syntax.ContainingClass()
.DescendantNodes()
.OfType<PropertyDeclarationSyntax>()
.Select(p => p.Identifier.ValueText);
var classMethodIds = syntax.ContainingClass()
.DescendantNodes()
.OfType<MethodDeclarationSyntax>()
.Select(m => m.Identifier.ValueText);
var classDelegateIds = syntax.ContainingClass()
.DescendantNodes()
.OfType<DelegateDeclarationSyntax>()
.Select(d => d.Identifier.ValueText);
return methodParameterNames
.Concat(methodLocalVars)
.Concat(classFieldIds)
.Concat(classPropertyIds)
.Concat(classMethodIds)
.Concat(classDelegateIds);
}
