// if statement
// ifclause (elseifclause)* (elseclause)? <<endif>>
public override int VisitIf_statement(YarnSpinnerParser.If_statementContext context)
{
// label to give us a jump point for when the if finishes
string endOfIfStatementLabel = compiler.RegisterLabel("endif");
// handle the if
var ifClause = context.if_clause();
generateClause(endOfIfStatementLabel, ifClause.statement(), ifClause.expression());
// all elseifs
foreach (var elseIfClause in context.else_if_clause())
{
generateClause(endOfIfStatementLabel, elseIfClause.statement(), elseIfClause.expression());
}
// the else, if there is one
var elseClause = context.else_clause();
if (elseClause != null)
{
generateClause(endOfIfStatementLabel, elseClause.statement(), null);
}
compiler.CurrentNode.Labels.Add(endOfIfStatementLabel, compiler.CurrentNode.Instructions.Count);
return(0);
}
