/// <summary>
/// Adds suggestions for given argument position.
/// Returns true if any function specific suggestions are added to the list. Otherwise false.
/// </summary>
/// <returns></returns>
public static bool TryAddSpecificSuggestionsForGivenArgPosition(IntellisenseData.IntellisenseData intellisenseData, CallNode callNode, int argumentIndex)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(callNode);
Contracts.Assert(argumentIndex >= 0);
CallInfo info = intellisenseData.Binding.GetInfo(callNode);
Contracts.AssertValue(info);
if (callNode.Args.Count < 0 ||
info.Function == null ||
!info.Function.HasSuggestionsForParam(argumentIndex))
{
return(false);
}
// Adding suggestions for callNode arguments from the Function's GetArgumentSuggestions method
// Keep track of the previous suggestion counts so we can tell whether or not we have added any
int countSuggestionsBefore = intellisenseData.Suggestions.Count;
int countSubstringSuggestionsBefore = intellisenseData.SubstringSuggestions.Count;
// If the function has specific suggestions for the argument,
// indicate it to the caller.
var function = info.Function;
var suggestionKind = intellisenseData.GetFunctionSuggestionKind(function, argumentIndex);
bool requiresSuggestionEscaping;
ErrorNode err;
if (argumentIndex >= 0 && argumentIndex < callNode.Args.Count && ((err = callNode.Args.Children[argumentIndex].AsError()) != null) &&
err.Token.Span.StartsWith(intellisenseData.Script, "\""))
{
intellisenseData.CleanupHandlers.Add(new StringSuggestionHandler(err.Token.Span.Min));
}
DType scopeType = ScopeTypeForArgumentSuggestions(callNode, intellisenseData);
var argSuggestions = intellisenseData.GetArgumentSuggestions(function, scopeType, argumentIndex, callNode.Args.Children, out requiresSuggestionEscaping);
foreach (KeyValuePair <string, DType> suggestion in argSuggestions)
{
AddSuggestion(intellisenseData, suggestion.Key, suggestionKind, SuggestionIconKind.Function, suggestion.Value, requiresSuggestionEscaping);
}
return(intellisenseData.Suggestions.Count > countSuggestionsBefore ||
intellisenseData.SubstringSuggestions.Count > countSubstringSuggestionsBefore);
}
