public object Visit(IfActionNode n, object o)
{
Append($"{AddIndent()}if (");
n.Expression.Accept(this, null);
AppendLine(")");
AppendLine($"{AddIndent()}{{");
IncreaseIndent();
n.Actions.Accept(this, null);
DecreaseIndent();
AppendLine($"{AddIndent()}}}");
n.ElseIfs.Accept(this, null);
n.Else.Accept(this, null);
return(null);
}
private ActionNode SelectionStatement()
{
ActionNode itsAST;
SourceCodePosition itsPos = _currentToken.SourcePosition;
Accept(Token.TokenType.If);
Accept(Token.TokenType.LeftParen);
ExpressionNode itsExpr = Expression();
Accept(Token.TokenType.RightParen);
Accept(Token.TokenType.LeftBrace);
ActionSequenceNode itsActions = ActionStatements();
Accept(Token.TokenType.RightBrace);
ActionSequenceNode itsElseifs = ElseIfStatements();
ActionNode itsElse = ElseStatement();
itsAST = new IfActionNode(itsExpr, itsActions, itsElseifs, itsElse, itsPos);
return(itsAST);
}
public object Visit(IfActionNode n, object o)
{
return(null);
}