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<?php |
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declare(strict_types=1); |
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namespace BEAR\Package; |
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use BEAR\AppMeta\AbstractAppMeta; |
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use BEAR\Package\Exception\InvalidContextException; |
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use BEAR\Package\Module\AppMetaModule; |
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use Ray\Di\AbstractModule; |
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use Ray\Di\AssistedModule; |
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use function array_reverse; |
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use function class_exists; |
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use function explode; |
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use function is_a; |
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use function is_subclass_of; |
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use function ucwords; |
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class Module |
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{ |
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/** |
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* Return module from $appMeta and $context |
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*/ |
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public function __invoke(AbstractAppMeta $appMeta, string $context): AbstractModule |
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{ |
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$contextsArray = array_reverse(explode('-', $context)); |
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$module = new AssistedModule(); |
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foreach ($contextsArray as $contextItem) { |
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$module = $this->installContextModule($appMeta, $contextItem, $module); |
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} |
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$module->override(new AppMetaModule($appMeta)); |
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return $module; |
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} |
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private function installContextModule(AbstractAppMeta $appMeta, string $contextItem, AbstractModule $module): AbstractModule |
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{ |
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$class = $appMeta->name . '\Module\\' . ucwords($contextItem) . 'Module'; |
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if (! class_exists($class)) { |
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$class = 'BEAR\Package\Context\\' . ucwords($contextItem) . 'Module'; |
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} |
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if (! is_a($class, AbstractModule::class, true)) { |
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throw new InvalidContextException($contextItem); |
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} |
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/** @psalm-suppress UnsafeInstantiation */ |
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$module = is_subclass_of($class, AbstractAppModule::class) ? new $class($appMeta, $module) : new $class($module); |
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return $module; |
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} |
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} |
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Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: