public override void Visit(IfElseChainNode node)
{
Emit("if (");
Visit(node.IfNodes[0].Predicate);
Emit(") {\n");
Visit(node.IfNodes[0].Body);
Emit("} ");
foreach (IfNode elseifNode in node.IfNodes.Skip(1))
{
Emit("else if (");
Visit(elseifNode.Predicate);
Emit(") {\n");
Visit(elseifNode.Body);
Emit("} ");
}
if (node.ElseBody is not null)
{
Emit("else {\n");
Visit(node.ElseBody);
Emit("}\n");
}
else
{
Emit("\n");
}
}
public override Node VisitIfStmt(ML4DParser.IfStmtContext context)
{
IfElseChainNode ifElseChainNode = new IfElseChainNode();
int predicates = context._pred.Count;
int bodies = context._body.Count;
ifElseChainNode.IfNodes.Add(new IfNode((ExpressionNode)Visit(context._pred[0]),
(LinesNode)Visit(context._body[0])));
if (predicates == 1 && predicates < bodies)
{
ifElseChainNode.ElseBody = (LinesNode)Visit(context._body[bodies - 1]);
}
if (predicates > 1 && predicates == bodies)
{
for (int i = 1; i < bodies; i++)
{
ifElseChainNode.IfNodes.Add(new IfNode((ExpressionNode)Visit(context._pred[i]),
(LinesNode)Visit(context._body[i])));
}
}
else if (predicates > 1 && predicates < bodies)
{
for (int i = 1; i < predicates; i++)
{
ifElseChainNode.IfNodes.Add(new IfNode((ExpressionNode)Visit(context._pred[i]),
(LinesNode)Visit(context._body[i])));
}
ifElseChainNode.ElseBody = (LinesNode)Visit(context._body[bodies - 1]);
}
return(ifElseChainNode);
}
public override void Visit(IfElseChainNode node)
{
foreach (IfNode ifNode in node.IfNodes)
{
Visit(ifNode);
}
if (node.ElseBody is not null)
{
SymbolTable.OpenScope();
Visit(node.ElseBody);
SymbolTable.CloseScope();
}
}
public virtual void Visit(IfElseChainNode node)
{
VisitChildren(node);
}
