public override void Visit(ForeachLoopNode node)
{
_symbolTable.SetCurrentNode(node);
AllType?collectionType = _symbolTable.RetrieveSymbol(node.InVariableName, out bool isCollectionInForeach, false);
if (node.VariableType_enum == collectionType)
{
//collection type and variable type is the same.
}
else
{
_symbolTable.WrongTypeError(node.VariableName, node.InVariableName);
}
_symbolTable.OpenScope(BlockType.ForEachLoop);
VisitChildren(node);
_symbolTable.CloseScope();
}
public override void Visit(ForeachLoopNode node)
{
SymbolTable.SetCurrentNode(node);
SymbolTable.OpenScope(BlockType.ForEachLoop);
// Check the new declared variable
if (SymbolTable.DeclaredLocally(node.VariableName))
{
SymbolTable.AlreadyDeclaredError(node.VariableName);
}
else
{
SymbolTable.EnterSymbol(node.VariableName, node.VariableType_enum);
SymbolTable.SetAssigned(node.VariableName);
}
// CHeck if the variable (collection) to loop though, is defined!
SymbolTable.CheckIfDefined(node.InVariableName);
// Visit all children (codeBlock items)
VisitChildren(node);
// Close the scope again
SymbolTable.CloseScope();
}
public override AbstractNode VisitForeachLoop([NotNull] GiraphParser.ForeachLoopContext context)
{
ForeachLoopNode ForeachNode = new ForeachLoopNode(context.Start.Line, context.Start.Column);
ForeachNode.VariableName = context.foreachCondition().variable(0).GetText();
ForeachNode.VariableType = context.foreachCondition().allType().GetText();
ForeachNode.InVariableName = context.foreachCondition().variable(1).GetText();
// Check the where condition
if (context.where () != null && context.where ().GetText().Length > 0)
{
ForeachNode.WhereCondition = Visit(context.where ());
}
// Visit the children of the codeblock
foreach (var Child in context.codeBlock().children)
{
if (Child.GetChild(0) != null)
{
ForeachNode.AdoptChildren(Visit(Child.GetChild(0)));
}
}
return(ForeachNode);
}
public virtual XzaarExpression Visit(ForeachLoopNode loop)
{
return(null);
}
public override void Visit(ForeachLoopNode node)
{
}
public abstract void Visit(ForeachLoopNode node);
public virtual ForeachLoopNode Visit(ForeachLoopNode loop)
{
return(loop);
}