public override void EnterVarDecl([NotNull] DaedalusParser.VarDeclContext context)
{
if (context.Parent.Parent is DaedalusParser.DaedalusFileContext || _assemblyBuilder.IsContextInsideExecBlock())
{
var typeName = context.typeReference().GetText();
var type = DatSymbolTypeFromString(typeName);
if (type == DatSymbolType.Class)
{
type = DatSymbolType.Instance;
}
for (int i = 0; i < context.ChildCount; i++)
{
var varContext = context.GetChild(i);
if (varContext is TerminalNodeImpl)
{
continue; // skips ','
}
if (varContext is DaedalusParser.VarValueDeclContext varValueContext)
{
var name = varValueContext.nameNode().GetText();
if (_assemblyBuilder.IsContextInsideExecBlock())
{
// TODO consider making assemblyBuilder.active public and using it here
BaseExecBlockContext baseExecBlock = _assemblyBuilder.ExecBlocks.Last();
string execBlockName = baseExecBlock.GetSymbol().Name;
name = $"{execBlockName}.{name}";
}
var location = GetLocation(context);
int parentIndex = DatSymbol.NULL_INDEX;
string parameterTypeName = context.typeReference().GetText();
DatSymbolType?parameterType = DatSymbolTypeFromString(parameterTypeName);
if (parameterType is DatSymbolType.Class)
{
var parentSymbol = _assemblyBuilder.ResolveSymbol(parameterTypeName);
parentIndex = parentSymbol.Index;
}
var symbol = SymbolBuilder.BuildVariable(name, type, location, parentIndex); // TODO : Validate params
_assemblyBuilder.AddSymbol(symbol);
}
if (varContext is DaedalusParser.VarArrayDeclContext varArrayContext)
{
var name = varArrayContext.nameNode().GetText();
var location = GetLocation(context);
var size = EvaluatorHelper.EvaluteArraySize(varArrayContext.arraySize(), _assemblyBuilder);
var symbol =
SymbolBuilder.BuildArrOfVariables(name, type, (uint)size,
location); // TODO : Validate params
_assemblyBuilder.AddSymbol(symbol);
}
}
}
}
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);
}
