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[TypeInfo] Add TypeFactoryTrait::fromValue method #59368

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Merged
merged 1 commit into from
Jan 17, 2025
Merged

[TypeInfo] Add TypeFactoryTrait::fromValue method #59368

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1 change: 1 addition & 0 deletions src/Symfony/Component/TypeInfo/CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ CHANGELOG
---

* Add `Type::accepts()` method
* Add `TypeFactoryTrait::fromValue()` method

7.2
---
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57 changes: 57 additions & 0 deletions src/Symfony/Component/TypeInfo/Tests/TypeFactoryTest.php
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Expand Up @@ -206,4 +206,61 @@ public function testCreateNullable()
Type::nullable(Type::union(Type::int(), Type::string(), Type::null())),
);
}

/**
* @dataProvider createFromValueProvider
*/
public function testCreateFromValue(Type $expected, mixed $value)
{
$this->assertEquals($expected, Type::fromValue($value));
}

/**
* @return iterable<array{0: Type, 1: mixed}>
*/
public static function createFromValueProvider(): iterable
{
// builtin
yield [Type::null(), null];
yield [Type::true(), true];
yield [Type::false(), false];
yield [Type::int(), 1];
yield [Type::float(), 1.1];
yield [Type::string(), 'string'];
yield [Type::callable(), strtoupper(...)];
yield [Type::resource(), fopen('php://temp', 'r')];

// object
yield [Type::object(\DateTimeImmutable::class), new \DateTimeImmutable()];
yield [Type::object(), new \stdClass()];

// collection
$arrayAccess = new class implements \ArrayAccess {
public function offsetExists(mixed $offset): bool
{
return true;
}

public function offsetGet(mixed $offset): mixed
{
return null;
}

public function offsetSet(mixed $offset, mixed $value): void
{
}

public function offsetUnset(mixed $offset): void
{
}
};

yield [Type::list(Type::int()), [1, 2, 3]];
yield [Type::dict(Type::bool()), ['a' => true, 'b' => false]];
yield [Type::array(Type::string()), [1 => 'foo', 'bar' => 'baz']];
yield [Type::array(Type::nullable(Type::bool()), Type::int()), [1 => true, 2 => null, 3 => false]];
yield [Type::collection(Type::object(\ArrayIterator::class), Type::mixed(), Type::union(Type::int(), Type::string())), new \ArrayIterator()];
yield [Type::collection(Type::object(\Generator::class), Type::string(), Type::int()), (fn (): iterable => yield 'string')()];
yield [Type::collection(Type::object($arrayAccess::class)), $arrayAccess];
}
}
95 changes: 95 additions & 0 deletions src/Symfony/Component/TypeInfo/TypeFactoryTrait.php
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Expand Up @@ -340,4 +340,99 @@ public static function nullable(Type $type): Type

return new NullableType($type);
}

public static function fromValue(mixed $value): Type
{
$type = match ($value) {
null => self::null(),
true => self::true(),
false => self::false(),
default => null,
};

if (null !== $type) {
return $type;
}

if (\is_callable($value)) {
return Type::callable();
}

if (\is_resource($value)) {
return Type::resource();
}

$type = match (get_debug_type($value)) {
TypeIdentifier::INT->value => self::int(),
TypeIdentifier::FLOAT->value => self::float(),
TypeIdentifier::STRING->value => self::string(),
default => null,
};

if (null !== $type) {
return $type;
}

$type = match (true) {
\is_object($value) => \stdClass::class === $value::class ? self::object() : self::object($value::class),
\is_array($value) => self::builtin(TypeIdentifier::ARRAY),
default => null,
};

if (null === $type) {
return Type::mixed();
}

if (is_iterable($value)) {
/** @var list<BuiltinType<TypeIdentifier::INT>|BuiltinType<TypeIdentifier::STRING>> $keyTypes */
$keyTypes = [];

/** @var list<Type|null> $valueTypes */
$valueTypes = [];

$i = 0;

foreach ($value as $k => $v) {
$keyTypes[] = self::fromValue($k);
$keyTypes = array_unique($keyTypes);

$valueTypes[] = self::fromValue($v);
$valueTypes = array_unique($valueTypes);
}

if ([] !== $keyTypes) {
$keyTypes = array_values($keyTypes);
$keyType = \count($keyTypes) > 1 ? self::union(...$keyTypes) : $keyTypes[0];

$valueType = null;
foreach ($valueTypes as &$v) {
if ($v->isIdentifiedBy(TypeIdentifier::MIXED)) {
$valueType = Type::mixed();

break;
}

if ($v->isIdentifiedBy(TypeIdentifier::TRUE, TypeIdentifier::FALSE)) {
$v = Type::bool();
}
}

if (!$valueType) {
$valueTypes = array_values(array_unique($valueTypes));
$valueType = \count($valueTypes) > 1 ? self::union(...$valueTypes) : $valueTypes[0];
}
} else {
$keyType = Type::union(Type::int(), Type::string());
$valueType = Type::mixed();
}

return self::collection($type, $valueType, $keyType, \is_array($value) && array_is_list($value));
}

if ($value instanceof \ArrayAccess) {
return self::collection($type);
}

return $type;
}
}