// list_if: 'if' old_test [list_iter]
// comp_if: 'if' old_test [comp_iter]
private ComprehensionIf ParseCompIf() {
Eat(TokenKind.KeywordIf);
var start = GetStart();
Expression expr = ParseOldExpression();
ComprehensionIf ret = new ComprehensionIf(expr);
ret.SetLoc(_globalParent, start, GetEnd());
return ret;
}
internal comprehension(ComprehensionFor listFor, ComprehensionIf[] listIfs)
: this() {
_target = Convert(listFor.Left, Store.Instance);
_iter = Convert(listFor.List);
_ifs = PythonOps.MakeEmptyList(listIfs.Length);
foreach (ComprehensionIf listIf in listIfs)
_ifs.Add(Convert(listIf.Test));
}
internal static PythonList Convert(ComprehensionIterator[] iters) {
PythonList comps = new PythonList();
int start = 1;
for (int i = 0; i < iters.Length; i++) {
if (i == 0 || iters[i] is ComprehensionIf)
if (i == iters.Length - 1)
i++;
else
continue;
ComprehensionIf[] ifs = new ComprehensionIf[i - start];
Array.Copy(iters, start, ifs, 0, ifs.Length);
comps.Add(new comprehension((ComprehensionFor)iters[start - 1], ifs));
start = i + 1;
}
return comps;
}
public override bool Walk(ComprehensionIf node)
{
node.Parent = _currentScope;
return base.Walk(node);
}
// ComprehensionIf
public override bool Walk(ComprehensionIf node)
{
node.Parent = _currentScope;
return(base.Walk(node));
}
public void Visit(PyAst.ComprehensionIf node) => throw CreateNotImplementedEx();
