public override void VisitLocalFunctionStatement(LocalFunctionStatementSyntax node)
{
var body = (CSharpSyntaxNode)node.Body ?? node.ExpressionBody;
LocalFunctionSymbol match = null;
// Don't use LookupLocalFunction because it recurses up the tree, as it
// should be defined in the directly enclosing block (see note below)
Binder possibleScopeBinder = _enclosing;
while (possibleScopeBinder != null && !possibleScopeBinder.IsLocalFunctionsScopeBinder)
{
possibleScopeBinder = possibleScopeBinder.Next;
}
if (possibleScopeBinder != null)
{
foreach (var candidate in possibleScopeBinder.LocalFunctions)
{
if (candidate.Locations[0] == node.Identifier.GetLocation())
{
match = candidate;
}
}
}
bool oldSawYield = _sawYield;
_sawYield = false;
if (match != null)
{
var oldMethod = _containingMemberOrLambda;
_containingMemberOrLambda = match;
Binder addToMap;
if (match.IsGenericMethod)
{
addToMap = new WithMethodTypeParametersBinder(match, _enclosing);
}
else
{
addToMap = _enclosing;
}
AddToMap(node, addToMap);
if (body != null)
{
Visit(body, new InMethodBinder(match, addToMap));
}
_containingMemberOrLambda = oldMethod;
}
else
{
// The enclosing block should have found this node and created a LocalFunctionMethodSymbol
// The code that does so is in LocalScopeBinder.BuildLocalFunctions
if (body != null)
{
// do our best to attempt to bind
Visit(body);
}
}
if (_sawYield)
{
_methodsWithYields.Add(body);
}
_sawYield = oldSawYield;
}
protected override LocalFunctionState CreateLocalFunctionState(LocalFunctionSymbol symbol) => CreateLocalFunctionState();
protected override LocalFunctionState CreateLocalFunctionState(LocalFunctionSymbol symbol) => new LocalFunctionState(UnreachableState());
protected abstract TLocalFunctionState CreateLocalFunctionState(LocalFunctionSymbol symbol);
