public override IEnumerable <Code> Traverse(
Func <List <Expression>, bool?>?branchPicker)
{
bool?branchesToExecute = branchPicker == null? null: branchesToExecute = branchPicker(Expressions);
// This yield lets any clients see the IF itself, for example for reporting purposes. It is filtered out and ignored in most cases.
yield return(this);
if (branchesToExecute == null || branchesToExecute == true)
{
foreach (var code in TrueCode.Traverse())
{
yield return(code);
}
}
if (FalseCode != null)
{
if (branchesToExecute == null || branchesToExecute == false)
{
foreach (var code in FalseCode.Traverse())
{
yield return(code);
}
}
}
}
public override void Traverse(
Func <Code, string, bool> examine,
string originalSourceText)
{
if (examine(this, originalSourceText))
{
TrueCode.Traverse(examine, originalSourceText);
}
else if (FalseCode != null)
{
FalseCode.Traverse(examine, originalSourceText);
}
}