willSequenceChangePosOnFailure method
Implementation
bool willSequenceChangePosOnFailure(SequenceExpression node) {
var count = 0;
for (final child in node.expressions) {
switch (child.kind) {
case ExpressionKind.andPredicate:
case ExpressionKind.notPredicate:
continue;
default:
}
if (child.isOptional) {
if (count == 0) {
count++;
}
continue;
}
if (count++ > 0) {
return true;
}
}
return false;
}