public override ASTNode VisitParameterDecl([NotNull] DaedalusParser.ParameterDeclContext context)
{
NodeLocation location = GetLocation(context);
NameNode typeNameNode = new NameNode(GetLocation(context.dataType()), context.dataType().GetText());
NameNode nameNode = new NameNode(GetLocation(context.nameNode()), context.nameNode().GetText());
if (context.arraySize() != null)
{
var arraySize = (ExpressionNode)VisitArraySize(context.arraySize());
ParameterArrayDeclarationNode parameterArrayDeclarationNode = new ParameterArrayDeclarationNode(location, typeNameNode, nameNode, arraySize);
_arrayDeclarationNodes.Add(parameterArrayDeclarationNode);
return(parameterArrayDeclarationNode);
}
return(new ParameterDeclarationNode(location, typeNameNode, nameNode));
}
public override void EnterParameterDecl(DaedalusParser.ParameterDeclContext context)
{
BaseExecBlockContext baseExecBlock = _assemblyBuilder.ExecBlocks.Last();
string execBlockName = baseExecBlock.GetSymbol().Name;
string parameterLocalName = context.nameNode().GetText();
string parameterName = $"{execBlockName}.{parameterLocalName}";
int parentIndex = DatSymbol.NULL_INDEX;
string parameterTypeName = context.typeReference().GetText();
DatSymbolType?parameterType = DatSymbolTypeFromString(parameterTypeName);
if (parameterType is DatSymbolType.Class)
{
parameterType = DatSymbolType.Instance;
var parentSymbol = _assemblyBuilder.ResolveSymbol(parameterTypeName);
parentIndex = parentSymbol.Index;
}
DatSymbol symbol;
var location = GetLocation(context);
var arraySizeContext = context.arraySize();
if (arraySizeContext != null)
{
if (!uint.TryParse(arraySizeContext.GetText(), out var arrIndex))
{
var constSymbol = _assemblyBuilder.ResolveSymbol(arraySizeContext.GetText());
if (constSymbol.Flags != DatSymbolFlag.Const || constSymbol.Type != DatSymbolType.Int)
{
throw new Exception($"Expected integer constant: {arraySizeContext.GetText()}");
}
arrIndex = (uint)(int)constSymbol.Content[0];
}
symbol = SymbolBuilder.BuildArrOfVariables(parameterName, parameterType.Value, arrIndex, location);
}
else
{
if (_assemblyBuilder.IsCurrentlyParsingExternals)
{
symbol = SymbolBuilder.BuildExternalParameter(parameterName, parameterType.Value, location, parentIndex);
}
else
{
symbol = SymbolBuilder.BuildParameter(parameterName, parameterType.Value, location, parentIndex);
}
}
_assemblyBuilder.AddSymbol(symbol);
}