public override void Visit(ForLoopNode node)
{
AllType?varDclNodeType;
_symbolTable.SetCurrentNode(node);
_symbolTable.OpenScope(BlockType.ForLoop);
VisitChildren(node);
if (node.Increment != null && (node.VariableDeclaration != null || node.FromValueNode != null) && node.ToValueOperation != null)
{
node.Increment.Accept(this);
if (node.VariableDeclaration != null)
{
node.VariableDeclaration.Accept(this);
}
if (node.FromValueNode != null)
{
node.FromValueNode.Accept(this);
}
node.ToValueOperation.Accept(this);
}
if (node.Increment is ExpressionNode incrementNode)
{
if (node.VariableDeclaration is VariableDclNode varDclNode)
{
varDclNodeType = _symbolTable.RetrieveSymbol(varDclNode.Name);
if (varDclNodeType != AllType.INT || incrementNode.OverAllType != AllType.INT)
{
_symbolTable.WrongTypeConditionError();
}
}
else
{
if (node.FromValueNode is ExpressionNode expNode)
{
if (expNode.OverAllType != AllType.INT || incrementNode.OverAllType != AllType.INT)
{
_symbolTable.WrongTypeConditionError();
}
}
else
{
if (node.FromValueNode.Type_enum != AllType.INT || incrementNode.OverAllType != AllType.INT)
{
_symbolTable.WrongTypeConditionError();
}
}
}
}
_symbolTable.CloseScope();
}
public override AbstractNode VisitForLoop([NotNull] GiraphParser.ForLoopContext context)
{
ForLoopNode ForLoop = new ForLoopNode(context.Start.Line, context.Start.Column);
var contextInside = context.forCondition().forConditionInside();
BoolComparisonNode boolComparison = new BoolComparisonNode(context.Start.Line, context.Start.Column);
boolComparison.ComparisonOperator = "<";
if (contextInside.forConditionStart().forConditionDcl() != null)
{
ForLoop.VariableDeclaration = Visit(contextInside.forConditionStart().forConditionDcl());
VariableNode varNode = new VariableNode(context.Start.Line, context.Start.Column);
varNode.Name = (ForLoop.VariableDeclaration as VariableDclNode).Name;
varNode.Type = (ForLoop.VariableDeclaration as VariableDclNode).Type;
boolComparison.Left = varNode;
ForLoop.ToValueOperation = boolComparison;
}
else if (contextInside.forConditionStart().expression() != null)
{
ForLoop.FromValueNode = Visit(contextInside.forConditionStart().expression());
ForLoop.ToValueOperation = Visit(contextInside.expression(0));
}
boolComparison.Right = Visit(contextInside.expression(0));
if (contextInside.expression(1) != null)
{
ForLoop.Increment = Visit(contextInside.expression(1));
}
else
{
ExpressionNode expNode = new ExpressionNode(context.Start.Line, context.Start.Column);
ConstantNode conNode = new ConstantNode(context.Start.Line, context.Start.Column);
conNode.Type = "int";
conNode.Value = "1";
expNode.ExpressionParts.Add(conNode);
ForLoop.Increment = expNode;
//ForLoop.Increment
}
// Visit all the children of the Codeblock associated with the ForLoop
foreach (var Child in context.codeBlock().codeBlockContent())
{
// Adopt the children
ForLoop.AdoptChildren(Visit(Child.GetChild(0)));
}
return(ForLoop);
}
public override void Visit(ForLoopNode node)
{
}
public abstract void Visit(ForLoopNode node);
