private IndexerSymbol BuildIndexer(IndexerDeclarationNode indexerNode, TypeSymbol typeSymbol) {
TypeSymbol indexerType = typeSymbol.SymbolSet.ResolveType(indexerNode.Type, _symbolTable, typeSymbol);
Debug.Assert(indexerType != null);
if (indexerType != null) {
IndexerSymbol indexer = new IndexerSymbol(typeSymbol, indexerType);
BuildMemberDetails(indexer, typeSymbol, indexerNode, indexerNode.Attributes);
if (AttributeNode.FindAttribute(indexerNode.Attributes, "IntrinsicProperty") != null) {
indexer.SetIntrinsic();
}
SymbolImplementationFlags implFlags = SymbolImplementationFlags.Regular;
if (indexerNode.SetAccessor == null) {
implFlags |= SymbolImplementationFlags.ReadOnly;
}
if ((indexerNode.Modifiers & Modifiers.Abstract) != 0) {
implFlags |= SymbolImplementationFlags.Abstract;
}
else if ((indexerNode.Modifiers & Modifiers.Override) != 0) {
implFlags |= SymbolImplementationFlags.Override;
}
indexer.SetImplementationState(implFlags);
Debug.Assert(indexerNode.Parameters.Count != 0);
foreach (ParameterNode parameterNode in indexerNode.Parameters) {
ParameterSymbol paramSymbol = BuildParameter(parameterNode, indexer);
if (paramSymbol != null) {
paramSymbol.SetParseContext(parameterNode);
indexer.AddParameter(paramSymbol);
}
}
indexer.AddParameter(new ParameterSymbol("value", indexer, indexerType, ParameterMode.In));
return indexer;
}
return null;
}