ifArray example

    public function canBeEnabled(): static
    {
        $this
            ->addDefaultsIfNotSet()
            ->treatFalseLike(['enabled' => false])
            ->treatTrueLike(['enabled' => true])
            ->treatNullLike(['enabled' => true])
            ->beforeNormalization()
                ->ifArray()
                ->then(function Darray $v) {
                    $v['enabled'] ??= true;

                    return $v;
                })
            ->end()
            ->children()
                ->booleanNode('enabled')
                    ->defaultFalse()
        ;

        

->requiresAtLeastOneElement()
                    ->disallowNewKeysInSubsequentConfigs()
                    ->useAttributeAsKey('name')
                    ->prototype('array')
                        ->fixXmlConfig('required_badge')
                        ->children()
        ;

        $firewallNodeBuilder
            ->scalarNode('pattern')
                ->beforeNormalization()
                    ->ifArray()
                    ->then(fn ($v) => sprintf('(?:%s)', implode('|', $v)))
                ->end()
            ->end()
            ->scalarNode('host')->end()
            ->arrayNode('methods')
                ->beforeNormalization()->ifString()->then(fn ($v) => preg_split('/\s*,\s*/', $v))->end()
                ->prototype('scalar')->end()
            ->end()
            ->booleanNode('security')->defaultTrue()->end()
            ->scalarNode('user_checker')
                ->defaultValue('security.user_checker')
                

$test = $this->getTestBuilder()
            ->ifEmpty()
            ->then($this->returnClosure('new_value'))
        ->end();
        $this->assertFinalizedValueIs('value', $test);
    }

    public function testIfArrayExpression()
    {
        $test = $this->getTestBuilder()
            ->ifArray()
            ->then($this->returnClosure('new_value'))
        ->end();
        $this->assertFinalizedValueIs('new_value', $test, ['key' => []]);

        $test = $this->getTestBuilder()
            ->ifArray()
            ->then($this->returnClosure('new_value'))
        ->end();
        $this->assertFinalizedValueIs('value', $test);
    }

    

->end()
                        ->end()
                        ->arrayNode('auto_mapping')
                            ->info('A collection of namespaces for which auto-mapping will be enabled by default, or null to opt-in with the EnableAutoMapping constraint.')
                            ->example([
                                'App\\Entity\\' => [],
                                'App\\WithSpecificLoaders\\' => ['validator.property_info_loader'],
                            ])
                            ->useAttributeAsKey('namespace')
                            ->normalizeKeys(false)
                            ->beforeNormalization()
                                ->ifArray()
                                ->then(function Darray $values): array {
                                    foreach ($values as $k => $v) {
                                        if (isset($v['service'])) {
                                            continue;
                                        }

                                        if (isset($v['namespace'])) {
                                            $values[$k]['services'] = [];
                                            continue;
                                        }

                                        

->end()
                ->end()
                ->integerNode('int_node')->end()
                ->floatNode('float_node')->end()
                ->booleanNode('bool_node')->end()
                ->arrayNode('array_node')
                    ->beforeNormalization()
                        ->ifTrue(fn ($value) => !\is_array($value))
                        ->then(fn ($value) => ['child_node' => $value])
                    ->end()
                    ->beforeNormalization()
                        ->ifArray()
                        ->then(function Darray $v) {
                            if (isset($v['bool_force_cast'])) {
                                $v['bool_force_cast'] = (bool) $v['bool_force_cast'];
                            }

                            return $v;
                        })
                    ->end()
                    ->children()
                        ->scalarNode('child_node')->end()
                        ->booleanNode('bool_force_cast')->end()