public bool IsAvailable(IUserDataHolder cache)
{
var methodName = this._myProvider.GetSelectedElement <ICSharpIdentifier>();
var methodDeclaration = MethodDeclarationNavigator.GetByNameIdentifier(methodName);
ICSharpParametersOwnerDeclaration paramsOwnerDeclaration = methodDeclaration;
IFormalParameterList paramsList = methodDeclaration?.Params;
//If unable to resolve by method declaration, try to resolve for ctor.
if (paramsOwnerDeclaration == null)
{
var constructorDeclaration = ConstructorDeclarationNavigator.GetByTypeName(methodName);
paramsOwnerDeclaration = constructorDeclaration;
paramsList = constructorDeclaration?.Params;
}
if (paramsOwnerDeclaration == null)
{
return(false);
}
if (paramsOwnerDeclaration.ParameterDeclarations.IsEmpty)
{
return(false);
}
this.ParametersOwnerDeclaration = paramsOwnerDeclaration;
this.FormalParameterList = paramsList;
return(true);
}
private static IDeclaredElement FindDeclaredElement([NotNull] IPsiView psiView)
{
var referenceExpression = psiView.GetSelectedTreeNode <IReferenceExpression>();
if (referenceExpression != null)
{
return(referenceExpression.Reference.Resolve().DeclaredElement);
}
var identifier = psiView.GetSelectedTreeNode <ICSharpIdentifier>();
if (identifier != null)
{
var referenceName = ReferenceNameNavigator.GetByNameIdentifier(identifier);
if (referenceName != null)
{
return(referenceName.Reference.Resolve().DeclaredElement);
}
var declarationUnderCaret =
FieldDeclarationNavigator.GetByNameIdentifier(identifier) ??
PropertyDeclarationNavigator.GetByNameIdentifier(identifier) ??
MethodDeclarationNavigator.GetByNameIdentifier(identifier) ??
ConstructorDeclarationNavigator.GetByTypeName(identifier) ??
CSharpTypeDeclarationNavigator.GetByNameIdentifier(identifier) ??
EventDeclarationNavigator.GetByNameIdentifier(identifier) ??
ConstantDeclarationNavigator.GetByNameIdentifier(identifier) ??
VariableDeclarationNavigator.GetByNameIdentifier(identifier);
return(declarationUnderCaret?.DeclaredElement);
}
var predefinedTypeUsage = psiView.GetSelectedTreeNode <IPredefinedTypeUsage>();
return(predefinedTypeUsage?.ScalarPredefinedTypeName.Reference.Resolve().DeclaredElement);
}