PHP-DI object definitions

README.md

interface MoneyStorage {
}
class BankAccount implements MoneyStorage {
    public function __construct(Logger $logger, $account) ...
}

return [
    // Binding
    MoneyStorage::class => object(BankAccount::class),
    // is actually
    MoneyStorage::class => get(BankAccount::class),
    // or
    MoneyStorage::class => object(BankAccount::class)
        ->inherit(true),

    // Binding + override autowiring
    MoneyStorage::class => object(BankAccount::class)
        ->constructorParameter('account', 123),
    // is actually
    MoneyStorage::class => get(BankAccount::class),
    BankAccount::class => object()
        ->constructorParameter('account', 123),
    // or
    MoneyStorage::class => object(BankAccount::class)
        ->inherit(true)
        ->constructorParameter('account', 123),
        
    // Binding (but actually inherit + overrides autowiring)
    'money' => object(BankAccount::class)
        ->constructorParameter('account', 123),
    // is actually
    'money' => object(BankAccount::class)
        ->autowiring()
        ->constructorParameter('account', 123),
    // or
    'money' => object(BankAccount::class)
        ->inherit(true)
        ->constructorParameter('account', 123),
        
    // Inherit + override
    'foo' => object('money')
        ->constructorParameter('account', 123),
    // is actually
    'foo' => inherit('money')
        ->constructorParameter('account', 123),
    // or
    'foo' => object('money')
        ->inherit(true)
        ->constructorParameter('account', 123),
        
    // Complete override
    'foo' => object(BankAccount::class)
        ->constructor(Logger::class, 123),
    // can be
    'foo' => object('money')
        ->inherit(false)
        ->constructor(Logger::class, 123),
];

keeping current behavior

Cons:

• can't redeclare something from scratch
• non-obvious inheritance
• nested definitions are not declared from scratch -> weird

changing current behavior

return [
    MoneyStorage::class => get(BankAccount::class),

    MoneyStorage::class => object(BankAccount::class)
        ->inherit()
        ->constructorParameter('account', 123),
        
    'money' => object(BankAccount::class)
        ->inherit()
        ->constructorParameter('account', 123),
        
    'foo' => object()
        ->inherit('money')
        ->constructorParameter('account', 123),
        
    'foo' => object(Foo::class)
        ->inherit('money')
        ->constructorParameter('account', 123),
        
    'foo' => object(BankAccount::class)
        ->constructor(Logger::class, 123),
];