public static bool CheckAndAddSuggestion(IntellisenseSuggestion suggestion, IntellisenseSuggestionList suggestionList)
{
if (suggestionList.ContainsSuggestion(suggestion.DisplayText.Text))
{
return(false);
}
suggestionList.Add(suggestion);
return(true);
}
public static UIString DisambiguateGlobals(IntellisenseSuggestionList curList, UIString curSuggestion, SuggestionKind suggestionKind, DType type)
{
Contracts.AssertValue(curList);
Contracts.AssertValue(curSuggestion);
Contracts.AssertValid(type);
UIString retVal = curSuggestion;
string sug = curSuggestion.Text;
bool suggestionKindIsGlobalOrScope = (suggestionKind == SuggestionKind.Global || suggestionKind == SuggestionKind.ScopeVariable);
foreach (var s in curList.SuggestionsForText(sug))
{
// Retrive global/appVariable suggestions which
// -- Don't have the same type as current suggestion (because, if it's of same type, it will be filtered out anyway)
// -- Match the current suggestion text (filtered in the loop definition above for efficiency)
if ((!suggestionKindIsGlobalOrScope &&
s.Kind != SuggestionKind.Global &&
s.Kind != SuggestionKind.ScopeVariable) ||
s.Type == type)
{
continue;
}
// The retrived list represents collisions. Update the suggestion text with global disambiguation.
int punctuatorLen = TexlLexer.PunctuatorAt.Length + TexlLexer.PunctuatorAt.Length;
// The suggestion already in the list is global. Update it.
if (s.Kind == SuggestionKind.Global || s.Kind == SuggestionKind.ScopeVariable)
{
int index = curList.IndexOf(s);
Contracts.Assert(index >= 0);
UIString dispText = curList[index].DisplayText;
// If we are already using the global syntax, we should not add it again.
if (dispText.Text.StartsWith(TexlLexer.PunctuatorBracketOpen + TexlLexer.PunctuatorAt))
{
continue;
}
curList.UpdateDisplayText(index, new UIString(TexlLexer.PunctuatorBracketOpen + TexlLexer.PunctuatorAt + dispText.Text + TexlLexer.PunctuatorBracketClose,
dispText.HighlightStart + punctuatorLen,
dispText.HighlightEnd + punctuatorLen));
}
// Current suggestion is global. Update it.
else
{
retVal = new UIString(TexlLexer.PunctuatorBracketOpen + TexlLexer.PunctuatorAt + sug + TexlLexer.PunctuatorBracketClose,
curSuggestion.HighlightStart + punctuatorLen,
curSuggestion.HighlightEnd + punctuatorLen);
}
}
return(retVal);
}
/// <summary>
/// This is a Private method used only by the SuggestFunctions() method to add overload suggestions to the existing suggestions.
/// </summary>
public static void AddFunctionOverloads(string qualifiedName, IntellisenseSuggestionList suggestions, IntellisenseSuggestion funcSuggestion)
{
Contracts.AssertNonEmpty(qualifiedName);
Contracts.AssertValue(suggestions);
Contracts.AssertValue(funcSuggestion);
int overloadMatch = suggestions.FindIndex(x => (x.Kind == SuggestionKind.Function && x.FunctionName == qualifiedName));
if (overloadMatch > -1)
{
suggestions[overloadMatch].AddOverloads(funcSuggestion.Overloads);
}
else
{
CheckAndAddSuggestion(funcSuggestion, suggestions);
}
}
protected virtual UIString ConstructUIString(SuggestionKind suggestionKind, DType type, IntellisenseSuggestionList suggestions, string valueToSuggest, int highlightStart, int highlightEnd)
{
return(IntellisenseHelper.DisambiguateGlobals(suggestions,
new UIString(valueToSuggest, highlightStart, highlightEnd),
suggestionKind,
type));
}
protected virtual bool CheckAndAddSuggestion(IntellisenseSuggestionList suggestions, IntellisenseSuggestion candidate)
{
return(IntellisenseHelper.CheckAndAddSuggestion(candidate, suggestions));
}
public bool AddSuggestion(IntellisenseData.IntellisenseData intellisenseData, string suggestion, SuggestionKind suggestionKind, SuggestionIconKind iconKind, DType type, bool requiresSuggestionEscaping, uint sortPriority = 0)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(suggestion);
if (!intellisenseData.DetermineSuggestibility(suggestion, type))
{
return(false);
}
IntellisenseSuggestionList suggestions = intellisenseData.Suggestions;
IntellisenseSuggestionList substringSuggestions = intellisenseData.SubstringSuggestions;
int matchingLength = intellisenseData.MatchingLength;
string matchingStr = intellisenseData.MatchingStr;
string boundTo = intellisenseData.BoundTo;
var valueToSuggest = requiresSuggestionEscaping ? TexlLexer.EscapeName(suggestion) : suggestion;
int highlightStart = suggestion.IndexOf(matchingStr, StringComparison.OrdinalIgnoreCase);
// If the suggestion has special characters we need to find the highlightStart index by escaping the matching string as well.
// Because, the suggestion could be something like 'Ident with Space' and the user might have typed Ident. In this case,
// we want to highlight only Ident while displaying 'Ident with Space'.
if (requiresSuggestionEscaping && !string.IsNullOrEmpty(matchingStr) && valueToSuggest != suggestion && highlightStart == 0)
{
highlightStart++;
}
else
{
matchingLength--;
}
int highlightEnd = highlightStart + matchingStr.Length;
if (IntellisenseHelper.IsMatch(suggestion, matchingStr))
{
// In special circumstance where the user escapes an identifier where they don't have to, the matching length will
// include the starting delimiter that user provided, where as the suggestion would not include any delimiters.
// Hence we have to count for that fact.
if (matchingLength > 0 & matchingLength > matchingStr.Length)
{
highlightEnd = matchingLength > valueToSuggest.Length ? valueToSuggest.Length : matchingLength;
}
UIString UIsuggestion = ConstructUIString(suggestionKind, type, suggestions, valueToSuggest, highlightStart, highlightEnd);
IntellisenseSuggestion candidate = new IntellisenseSuggestion(UIsuggestion,
suggestionKind,
iconKind,
type,
boundTo,
-1,
string.Empty,
null,
sortPriority);
return(CheckAndAddSuggestion(suggestions, candidate));
}
if (highlightStart > -1)
{
UIString UIsuggestion = ConstructUIString(suggestionKind, type, substringSuggestions, valueToSuggest, highlightStart, highlightEnd);
IntellisenseSuggestion candidate = new IntellisenseSuggestion(UIsuggestion,
suggestionKind,
iconKind,
type,
boundTo,
-1,
string.Empty,
null,
sortPriority);
return(CheckAndAddSuggestion(substringSuggestions, candidate));
}
return(false);
}
protected override bool CheckAndAddSuggestion(IntellisenseSuggestionList suggestions, IntellisenseSuggestion candidate)
{
return(!suggestions.ContainsSuggestion(candidate.DisplayText.Text));
}
protected override UIString ConstructUIString(SuggestionKind suggestionKind, DType type, IntellisenseSuggestionList suggestions, string valueToSuggest, int highlightStart, int highlightEnd)
{
return(new UIString(valueToSuggest, highlightStart, highlightEnd));
}