protected function applyValue($input, Context $ctx)
{
if ($input === null) {
goto done;
}
$input = parent::applyValue($input, $ctx);
if (!$ctx->nodeValid()) {
return $input;
}
$itemsLen = count($this->items);
$expectedKey = 0;
$keysValid = true;
$keySequenceValid = null;
$idx = 0;
foreach ($this->checkIterator($input) as list($key, $idx, $item, $itemChecker)) {
if ($keySequenceValid === null) {
$keySequenceValid = $key === 0;
}
// 1-indexing is for humans, 0-indexing is for computers
$ctx->push($key, $key + 1);
try {
// PHP will always cast stringy keys to ints if possible.
if (is_string($key)) {
$ctx->addReason($this, ['id' => 'list.invalidKey']);
$keysValid = false;
goto next_item;
}
if ($key !== $expectedKey++) {
$keySequenceValid = false;
}
if (!$itemChecker) {
$ctx->addReason($this, ['id' => 'list.invalid']);
} else {
$input[$key] = $itemChecker->apply($item, $ctx);
}
} finally {
$ctx->pop($key);
}
next_item:
}
if ($keysValid && $keySequenceValid === false) {
$ctx->addReason($this, ['id' => 'list.keySequence', 'params' => ['first' => '0']]);
}
if ($itemsLen && $idx + 1 < $itemsLen) {
$ctx->addReason($this, ['id' => 'list.missingIndex', 'params' => ['first' => '0']]);
}
done:
return $input;
}
