<?php
declare(strict_types=1);
namespace DI\Definition\Source;
use DI\Definition\ArrayDefinition;
use DI\Definition\AutowireDefinition;
use DI\Definition\DecoratorDefinition;
use DI\Definition\Definition;
use DI\Definition\Exception\InvalidDefinition;
use DI\Definition\FactoryDefinition;
use DI\Definition\Helper\DefinitionHelper;
use DI\Definition\ObjectDefinition;
use DI\Definition\ValueDefinition;
/**
* Turns raw definitions/definition helpers into definitions ready
* to be resolved or compiled.
*
* @author Matthieu Napoli <[email protected]>
*/
class DefinitionNormalizer
{
/**
* @var Autowiring
*/
private $autowiring;
public function __construct(Autowiring $autowiring)
{
$this->autowiring = $autowiring;
}
/**
* Normalize a definition that is *not* nested in another one.
*
* This is usually a definition declared at the root of a definition array.
*
* @param mixed $definition
* @param string $name The definition name.
* @param string[] $wildcardsReplacements Replacements for wildcard definitions.
*
* @throws InvalidDefinition
*/
public function normalizeRootDefinition($definition, string $name, array $wildcardsReplacements = null) : Definition
{
if ($definition instanceof DefinitionHelper) {
$definition = $definition->getDefinition($name);
} elseif (is_array($definition)) {
$definition = new ArrayDefinition($definition);
} elseif ($definition instanceof \Closure) {
$definition = new FactoryDefinition($name, $definition);
} elseif (! $definition instanceof Definition) {
$definition = new ValueDefinition($definition);
}
// For a class definition, we replace * in the class name with the matches
// *Interface -> *Impl => FooInterface -> FooImpl
if ($wildcardsReplacements && $definition instanceof ObjectDefinition) {
$definition->replaceWildcards($wildcardsReplacements);
}
if ($definition instanceof AutowireDefinition) {
$definition = $this->autowiring->autowire($name, $definition);
}
$definition->setName($name);
try {
$definition->replaceNestedDefinitions([$this, 'normalizeNestedDefinition']);
} catch (InvalidDefinition $e) {
throw InvalidDefinition::create($definition, sprintf(
'Definition "%s" contains an error: %s',
$definition->getName(),
$e->getMessage()
), $e);
}
return $definition;
}
/**
* Normalize a definition that is nested in another one.
*
* @param mixed $definition
* @return mixed
*
* @throws InvalidDefinition
*/
public function normalizeNestedDefinition($definition)
{
$name = '<nested definition>';
if ($definition instanceof DefinitionHelper) {
$definition = $definition->getDefinition($name);
} elseif (is_array($definition)) {
$definition = new ArrayDefinition($definition);
} elseif ($definition instanceof \Closure) {
$definition = new FactoryDefinition($name, $definition);
}
if ($definition instanceof DecoratorDefinition) {
throw new InvalidDefinition('Decorators cannot be nested in another definition');
}
if ($definition instanceof AutowireDefinition) {
$definition = $this->autowiring->autowire($name, $definition);
}
if ($definition instanceof Definition) {
$definition->setName($name);
// Recursively traverse nested definitions
$definition->replaceNestedDefinitions([$this, 'normalizeNestedDefinition']);
}
return $definition;
}
}