addSuggestion method

void addSuggestion(Element element, { String? prefix, int relevance = DART_RELEVANCE_DEFAULT, })

Add a suggestion based upon the given element.

Implementation

void addSuggestion(Element element,
    {String? prefix, int relevance = DART_RELEVANCE_DEFAULT}) {
  if (element.isPrivate) {
    if (element.library != containingLibrary) {
      return;
    }
  }
  var completion = element.displayName;
  if (prefix != null && prefix.isNotEmpty) {
    if (completion.isEmpty) {
      completion = prefix;
    } else {
      completion = '$prefix.$completion';
    }
  }
  if (completion.isEmpty) {
    return;
  }
  var builder = SuggestionBuilderImpl(resourceProvider);
  var suggestion = builder.forElement(element,
      completion: completion, kind: kind, relevance: relevance);
  if (suggestion != null) {
    if (element.isSynthetic && element is PropertyAccessorElement) {
      String? cacheKey;
      if (element.isGetter) {
        cacheKey = element.name;
      }
      if (element.isSetter) {
        cacheKey = element.name;
        cacheKey = cacheKey.substring(0, cacheKey.length - 1);
      }
      if (cacheKey != null) {
        var existingSuggestion = _syntheticMap[cacheKey];

        // Pair getter/setter by updating the existing suggestion
        if (existingSuggestion != null) {
          var getter = element.isGetter ? suggestion : existingSuggestion;
          var elemKind = element.enclosingElement is ClassElement
              ? protocol.ElementKind.FIELD
              : protocol.ElementKind.TOP_LEVEL_VARIABLE;
          existingSuggestion.element = protocol.Element(
              elemKind,
              existingSuggestion.element!.name,
              existingSuggestion.element!.flags,
              location: getter.element?.location,
              typeParameters: getter.element?.typeParameters,
              parameters: null,
              returnType: getter.returnType);
          return;
        }

        // Cache lone getter/setter so that it can be paired
        _syntheticMap[cacheKey] = suggestion;
      }
    }
    if (_completions.add(suggestion.completion)) {
      suggestions.add(suggestion);
    }
  }
}