nur-ture/src/schema/_list/ListSchema.php

77 lines
2.4 KiB
PHP

<?php
namespace nulib\schema\_list;
use nulib\ref\schema\ref_schema;
use nulib\ValueException;
use nulib\schema\Schema;
use nulib\schema\Wrapper;
class ListSchema extends Schema {
/** @var array meta-schema d'un schéma de nature liste */
const METASCHEMA = ref_schema::LIST_METASCHEMA;
/**
* indiquer si $definition est une définition de schéma de nature liste que
* {@link normalize()} pourrait normaliser
*/
static function isa_definition($definition): bool {
if (!is_array($definition)) return false;
# nature explicitement spécifiée
if (self::have_nature($definition, $nature)) {
return $nature === "list";
}
# un unique élément tableau à l'index 0
$count = count($definition);
$haveIndex0 = array_key_exists(0, $definition);
return $count == 1 && $haveIndex0 && is_array($definition[0]);
}
static function normalize($definition, $definitionKey=null): array {
if (!is_array($definition)) $definition = [$definition];
if (!self::have_nature($definition)) {
$definition = [
"?array",
"" => "list",
"schema" => $definition[0],
];
}
self::_normalize_definition($definition, $definitionKey);
self::_ensure_nature($definition, "list", "array");
return $definition;
}
function __construct($definition=null, $definitionKey=null, bool $normalize=true) {
if ($definition === null) $definition = static::SCHEMA;
if ($normalize) {
$definition = self::normalize($definition, $definitionKey);
$this->_definition = $definition;
self::_ensure_type($definition);
self::_ensure_schema_instances($definition);
}
$this->definition = $definition;
}
const KEYS = [null];
function getKeys(): array {
return self::KEYS;
}
public function getSchema($key=false): Schema {
if ($key !== null) throw ValueException::invalid_key($key);
return $this;
}
protected function newWrapper(): ListWrapper {
return new ListWrapper($this);
}
function getWrapper(&$value=null, $valueKey=null, ?array $params = null, ?Wrapper &$wrapper=null): ListWrapper {
# si pas de valeur ni de wrapper, pas de vérification et donc pas d'exception
# cf le code similaire dans ScalarWrapper::__construct()
$verifix = $value !== null || $wrapper !== null;
if (!($wrapper instanceof ListWrapper)) $wrapper = $this->newWrapper();
return $wrapper->reset($value, $valueKey, $verifix);
}
}