public override void Visit(IfStatementNode node)
{
string ElseLabel = ElseLabelGenerator.GetNewLabel();
string ElseEndLabel = ElseLabel + "End";
node.expression.Accept(this);
Gen("cmp", "eax", "0");
Gen("je", ElseLabel);
node.thenStatement.Accept(this);
Gen("jmp", ElseEndLabel);
GenText(ElseLabel + ":");
node.elseStatement.Accept(this);
GenText(ElseEndLabel + ":");
}
public override void Visit(IfStatementNode node)
{
try
{
node.expression.Accept(this);
if (!AreTypeCompatible(node.expression.ExpressionType.GetType(), typeof(BooleanType)))
throw new Exception("If condition expression is not of type Boolean!");
}
catch (Exception e)
{
Analysis.LogSemanticError(e.Message, node.lineNumber);
}
node.thenStatement.Accept(this);
node.elseStatement.Accept(this);
}
public virtual void Visit(IfStatementNode node)
{
node.expression.Accept(this);
node.thenStatement.Accept(this);
node.elseStatement.Accept(this);
}
public override void Visit(IfStatementNode node)
{
Console.WriteLine(this.indentation + "If --- Statement ----");
indentation = indentation + " ";
node.expression.Accept(this);
indentation = indentation.Substring(0, indentation.Length - 3);
Console.WriteLine(this.indentation + "Then");
indentation = indentation + " ";
node.thenStatement.Accept(this);
indentation = indentation.Substring(0, indentation.Length - 3);
Console.WriteLine(this.indentation + "Else");
indentation = indentation + " ";
node.elseStatement.Accept(this);
indentation = indentation.Substring(0, indentation.Length - 3);
}