private static ImmutableArray <SerializableImportCompletionItem> ConvertSymbolsToCompletionItems(ImmutableArray <IMethodSymbol> extentsionMethodSymbols, CancellationToken cancellationToken)
{
using var _1 = PooledDictionary <INamespaceSymbol, string> .GetInstance(out var namespaceNameCache);
using var _2 = PooledDictionary <(string containingNamespace, string methodName, bool isGeneric), (IMethodSymbol bestSymbol, int overloadCount)> .GetInstance(out var overloadMap);
// Aggregate overloads
foreach (var symbol in extentsionMethodSymbols)
{
IMethodSymbol bestSymbol;
int overloadCount;
var containingNamespacename = GetFullyQualifiedNamespaceName(symbol.ContainingNamespace, namespaceNameCache);
var overloadKey = (containingNamespacename, symbol.Name, isGeneric : symbol.Arity > 0);
// Select the overload with minimum number of parameters to display
if (overloadMap.TryGetValue(overloadKey, out var currentValue))
{
bestSymbol = currentValue.bestSymbol.Parameters.Length > symbol.Parameters.Length ? symbol : currentValue.bestSymbol;
overloadCount = currentValue.overloadCount + 1;
}
else
{
bestSymbol = symbol;
overloadCount = 1;
}
overloadMap[overloadKey] = (bestSymbol, overloadCount);
}
// Then convert symbols into completion items
using var _3 = ArrayBuilder <SerializableImportCompletionItem> .GetInstance(out var itemsBuilder);
foreach (var((containingNamespace, _, _), (bestSymbol, overloadCount)) in overloadMap)
{
// To display the count of of additional overloads, we need to substract total by 1.
var item = new SerializableImportCompletionItem(
SymbolKey.CreateString(bestSymbol, cancellationToken),
bestSymbol.Name,
bestSymbol.Arity,
bestSymbol.GetGlyph(),
containingNamespace,
additionalOverloadCount: overloadCount - 1);
itemsBuilder.Add(item);
}
return(itemsBuilder.ToImmutable());
}
private static ImmutableArray <SerializableImportCompletionItem> ConvertSymbolsToCompletionItems(
Compilation compilation, ImmutableArray <IMethodSymbol> extentsionMethodSymbols, ImmutableArray <ITypeSymbol> targetTypeSymbols, CancellationToken cancellationToken)
{
Dictionary <ITypeSymbol, bool> typeConvertibilityCache = new();
using var _1 = PooledDictionary <INamespaceSymbol, string> .GetInstance(out var namespaceNameCache);
using var _2 = PooledDictionary <(string containingNamespace, string methodName, bool isGeneric), (IMethodSymbol bestSymbol, int overloadCount, bool includeInTargetTypedCompletion)>
.GetInstance(out var overloadMap);
// Aggregate overloads
foreach (var symbol in extentsionMethodSymbols)
{
cancellationToken.ThrowIfCancellationRequested();
IMethodSymbol bestSymbol;
int overloadCount;
var includeInTargetTypedCompletion = ShouldIncludeInTargetTypedCompletion(compilation, symbol, targetTypeSymbols, typeConvertibilityCache);
var containingNamespacename = GetFullyQualifiedNamespaceName(symbol.ContainingNamespace, namespaceNameCache);
var overloadKey = (containingNamespacename, symbol.Name, isGeneric : symbol.Arity > 0);
// Select the overload convertible to any targeted type (if any) and with minimum number of parameters to display
if (overloadMap.TryGetValue(overloadKey, out var currentValue))
{
if (currentValue.includeInTargetTypedCompletion == includeInTargetTypedCompletion)
{
bestSymbol = currentValue.bestSymbol.Parameters.Length > symbol.Parameters.Length ? symbol : currentValue.bestSymbol;
}
else if (currentValue.includeInTargetTypedCompletion)
{
bestSymbol = currentValue.bestSymbol;
}
else
{
bestSymbol = symbol;
}
overloadCount = currentValue.overloadCount + 1;
includeInTargetTypedCompletion = includeInTargetTypedCompletion || currentValue.includeInTargetTypedCompletion;
}
else
{
bestSymbol = symbol;
overloadCount = 1;
}
overloadMap[overloadKey] = (bestSymbol, overloadCount, includeInTargetTypedCompletion);
}
// Then convert symbols into completion items
using var _3 = ArrayBuilder <SerializableImportCompletionItem> .GetInstance(out var itemsBuilder);
foreach (var((containingNamespace, _, _), (bestSymbol, overloadCount, includeInTargetTypedCompletion)) in overloadMap)
{
// To display the count of additional overloads, we need to subtract total by 1.
var item = new SerializableImportCompletionItem(
SymbolKey.CreateString(bestSymbol, cancellationToken),
bestSymbol.Name,
bestSymbol.Arity,
bestSymbol.GetGlyph(),
containingNamespace,
additionalOverloadCount: overloadCount - 1,
includeInTargetTypedCompletion);
itemsBuilder.Add(item);
}
return(itemsBuilder.ToImmutable());
}