internal void LookupExtensionMethodsInUsings(
ArrayBuilder<MethodSymbol> methods,
string name,
int arity,
LookupOptions options,
bool callerIsSemanticModel)
{
Debug.Assert(methods.Count == 0);
// We need to avoid collecting multiple candidates for an extension method imported both through a namespace and a static class
// We will look for duplicates only if both of the following flags are set to true
bool seenNamespaceWithExtensionMethods = false;
bool seenStaticClassWithExtensionMethods = false;
foreach (var nsOrType in this.Usings)
{
switch (nsOrType.NamespaceOrType.Kind)
{
case SymbolKind.Namespace:
{
var count = methods.Count;
((NamespaceSymbol)nsOrType.NamespaceOrType).GetExtensionMethods(methods, name, arity, options);
// If we found any extension methods, then consider this using as used.
if (methods.Count != count)
{
MarkImportDirective(nsOrType.UsingDirective, callerIsSemanticModel);
seenNamespaceWithExtensionMethods = true;
}
break;
}
case SymbolKind.NamedType:
{
var count = methods.Count;
((NamedTypeSymbol)nsOrType.NamespaceOrType).GetExtensionMethods(methods, name, arity, options);
// If we found any extension methods, then consider this using as used.
if (methods.Count != count)
{
MarkImportDirective(nsOrType.UsingDirective, callerIsSemanticModel);
seenStaticClassWithExtensionMethods = true;
}
break;
}
}
}
if (seenNamespaceWithExtensionMethods && seenStaticClassWithExtensionMethods)
{
var methodsNoDuplicates = ArrayBuilder<MethodSymbol>.GetInstance();
methodsNoDuplicates.AddRange(methods.Distinct());
if (methodsNoDuplicates.Count < methods.Count)
{
methods.Clear();
methods.AddRange(methodsNoDuplicates);
}
methodsNoDuplicates.Free();
}
}
internal void LookupExtensionMethodsInUsings(
ArrayBuilder <MethodSymbol> methods,
string name,
int arity,
LookupOptions options,
bool callerIsSemanticModel)
{
Debug.Assert(methods.Count == 0);
// We need to avoid collecting multiple candidates for an extension method imported both through a namespace and a static class
// We will look for duplicates only if both of the following flags are set to true
bool seenNamespaceWithExtensionMethods = false;
bool seenStaticClassWithExtensionMethods = false;
foreach (var nsOrType in this.Usings)
{
switch (nsOrType.NamespaceOrType.Kind)
{
case SymbolKind.Namespace:
{
var count = methods.Count;
((NamespaceSymbol)nsOrType.NamespaceOrType).GetExtensionMethods(methods, name, arity, options);
// If we found any extension methods, then consider this using as used.
if (methods.Count != count)
{
MarkImportDirective(nsOrType.UsingDirective, callerIsSemanticModel);
seenNamespaceWithExtensionMethods = true;
}
break;
}
case SymbolKind.NamedType:
{
var count = methods.Count;
((NamedTypeSymbol)nsOrType.NamespaceOrType).GetExtensionMethods(methods, name, arity, options);
// If we found any extension methods, then consider this using as used.
if (methods.Count != count)
{
MarkImportDirective(nsOrType.UsingDirective, callerIsSemanticModel);
seenStaticClassWithExtensionMethods = true;
}
break;
}
}
}
if (seenNamespaceWithExtensionMethods && seenStaticClassWithExtensionMethods)
{
var methodsNoDuplicates = ArrayBuilder <MethodSymbol> .GetInstance();
methodsNoDuplicates.AddRange(methods.Distinct());
if (methodsNoDuplicates.Count < methods.Count)
{
methods.Clear();
methods.AddRange(methodsNoDuplicates);
}
methodsNoDuplicates.Free();
}
}
