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 EnterVarDecl([NotNull] DaedalusParser.VarDeclContext context)
{
var varDecls = context.varDecl();
if (varDecls != null && varDecls.Length > 0)
{
var error = new RecognitionException(parser, parser.InputStream, context);
error.Data.Add(SyntaxError.DataKey_ErrorCode, SyntaxErrorCodes.D0002_Split_Multiple_Var_Decl);
parser.NotifyErrorListeners(varDecls[0].Start, error.Message, error);
}
base.EnterVarDecl(context);
}
private VarDeclarationsTemporaryNode GetVarDeclarationsTemporaryNode(DaedalusParser.VarDeclContext varDeclContext)
{
NameNode typeNameNode = new NameNode(GetLocation(varDeclContext.dataType()), varDeclContext.dataType().GetText());
List <DeclarationNode> varDeclarationNodes = new List <DeclarationNode>();
foreach (IParseTree childContext in varDeclContext.children)
{
if (childContext is DaedalusParser.VarValueDeclContext varValueDeclContext)
{
DaedalusParser.NameNodeContext nameNodeContext = varValueDeclContext.nameNode();
NameNode nameNode = new NameNode(GetLocation(nameNodeContext), nameNodeContext.GetText());
ExpressionNode rightSideNode = null;
if (varValueDeclContext.varValueAssignment() != null)
{
rightSideNode = (ExpressionNode)Visit(varValueDeclContext.varValueAssignment().expression()); // TODO check if null
}
varDeclarationNodes.Add(new VarDeclarationNode(GetLocation(varValueDeclContext), typeNameNode, nameNode, rightSideNode));
}
else if (childContext is DaedalusParser.VarArrayDeclContext varArrayDeclContext)
{
DaedalusParser.NameNodeContext nameNodeContext = varArrayDeclContext.nameNode();
NameNode nameNode = new NameNode(GetLocation(nameNodeContext), nameNodeContext.GetText());
ExpressionNode arraySizeNode = (ExpressionNode)VisitArraySize(varArrayDeclContext.arraySize());
List <ExpressionNode> elementNodes = null;
if (varArrayDeclContext.varArrayAssignment() != null)
{
elementNodes = new List <ExpressionNode>();
foreach (DaedalusParser.ExpressionContext expressionContext in varArrayDeclContext.varArrayAssignment().expression())
{
elementNodes.Add((ExpressionNode)Visit(expressionContext));
}
}
VarArrayDeclarationNode varArrayDeclarationNode =
new VarArrayDeclarationNode(GetLocation(nameNodeContext), typeNameNode, nameNode, arraySizeNode, elementNodes); // TODO check if null
_arrayDeclarationNodes.Add(varArrayDeclarationNode);
varDeclarationNodes.Add(varArrayDeclarationNode);
}
}
return(new VarDeclarationsTemporaryNode(GetLocation(varDeclContext), varDeclarationNodes));
}
/// <summary>
/// Visit a parse tree produced by <see cref="DaedalusParser.varDecl"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitVarDecl([NotNull] DaedalusParser.VarDeclContext context)
{
return(VisitChildren(context));
}
public override ASTNode VisitVarDecl([NotNull] DaedalusParser.VarDeclContext context)
{
return(GetVarDeclarationsTemporaryNode(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="DaedalusParser.varDecl"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitVarDecl([NotNull] DaedalusParser.VarDeclContext context)
{
}