Ejemplo n.º 1
0
        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);
                    }
                }
            }
        }