public void VisitIf(AbsynIf ifStm)
{
stms.Add(ifStm);
}
private bool IsSingleIfStatement(List<AbsynStatement> stms, out AbsynIf elseIf)
{
elseIf = null;
if (stms.Count != 1)
return false;
elseIf = stms[0] as AbsynIf;
return elseIf != null;
}
public void VisitIf(AbsynIf ifs)
{
writer.Indent();
WriteIf(ifs);
}
private void WriteIf(AbsynIf ifs)
{
writer.WriteKeyword("if");
writer.Write(" (");
WriteExpression(ifs.Condition);
writer.Write(")");
writer.Terminate();
WriteIndentedStatements(ifs.Then, false);
if (ifs.Else != null && ifs.Else.Count > 0)
{
writer.Indent();
writer.WriteKeyword("else");
AbsynIf elseIf;
if (IsSingleIfStatement(ifs.Else, out elseIf))
{
writer.Write(" ");
WriteIf(elseIf);
}
else
{
writer.Terminate();
WriteIndentedStatements(ifs.Else, false);
}
}
}
private AbsynIf EmitIfCondition(Expression exp, Conditional cond, AbsynStatementEmitter emitter)
{
if (cond is IfElse || cond is IfThenElse)
{
exp = exp.Invert();
}
AbsynIf ifStm = new AbsynIf();
ifStm.Condition = exp;
emitter.EmitStatement(ifStm);
return ifStm;
}