/**
* 与えられた値を、指定された型のいずれか一つに変換して返します。
* @link https://heycam.github.io/webidl/#idl-union Web IDL (Second Edition)
* @link http://www.w3.org/TR/WebIDL/#idl-union Web IDL
* @link https://heycam.github.io/webidl/#es-union Web IDL (Second Edition)
* @param mixed $value
* @param string $unitTypeString 共用体型。先頭、末尾の丸括弧も含む文字列。
* @param array $pseudoTypes callback interface 型、列挙型、callback 関数型、または dictionary 型の識別子をキーとした型情報の配列。
* @throws \InvalidArgumentException 指定された型のいずれにも一致しない値が与えられた場合。
* @throws \DomainException 指定された型のいずれにも一致しない値が与えられた場合。
* @return mixed
*/
public static function toUnion($value, $unitTypeString, $pseudoTypes = [])
{
$flattenedTypesAndNullableNums = self::getFlattenedTypesAndNullableNums($unitTypeString);
if ($flattenedTypesAndNullableNums['numberOfNullableMemberTypes'] === 1 && is_null($value)) {
return null;
}
foreach ($flattenedTypesAndNullableNums['flattenedMemberTypes'] as $type) {
$genericTypes[$type] = self::getGenericType($type, $pseudoTypes);
}
if (is_object($value) || $value instanceof \__PHP_Incomplete_Class) {
foreach (array_keys($genericTypes, 'interface') as $interfaceType) {
try {
return Type::to($interfaceType, $value, $pseudoTypes);
} catch (\LogicException $exception) {
if ($exception instanceof \InvalidArgumentException) {
$lastInvalidArgumentException = $exception;
} elseif ($exception instanceof \DomainException) {
$lastDomainException = $exception;
} else {
throw $exception;
}
}
}
if (isset($genericTypes['object'])) {
return $value;
}
}
if (RegExpType::isRegExpCastable($value) && isset($genericTypes['RegExp'])) {
try {
return RegExpType::toRegExp($value);
} catch (\LogicException $exception) {
if ($exception instanceof \DomainException) {
$lastDomainException = $exception;
} else {
throw $exception;
}
}
}
if (is_callable($value) && array_search('callback function', $genericTypes)) {
return $value;
}
try {
if ((is_array($value) || is_object($value) || $value instanceof \__PHP_Incomplete_Class || is_null($value)) && ($identifier = array_search('dictionary', $genericTypes)) !== false) {
return DictionaryType::toDictionary($value, $identifier, $pseudoTypes);
}
if (is_array($value) || is_object($value) || $value instanceof \__PHP_Incomplete_Class || is_null($value)) {
$type = array_search('array', $genericTypes) ?: array_search('sequence', $genericTypes) ?: array_search('FrozenArray', $genericTypes);
if ($type) {
return Type::to($type, $value, $pseudoTypes);
}
foreach (array_keys($genericTypes, 'interface') as $interfaceType) {
if (isset($pseudoTypes[$interfaceType]) && ($pseudoTypes[$interfaceType] === 'callback interface' || $pseudoTypes[$interfaceType] === 'single operation callback interface')) {
return Type::to($interfaceType, $value, $pseudoTypes);
}
}
}
if (is_bool($value) && isset($genericTypes['boolean'])) {
return $value;
}
if ((is_int($value) || is_float($value)) && ($type = array_search('numeric', $genericTypes))) {
return Type::to($type, $value);
}
if ($type = array_search('string', $genericTypes) ?: array_search('numeric', $genericTypes)) {
return Type::to($type, $value, $pseudoTypes);
}
if (isset($genericTypes['boolean'])) {
return BooleanType::toBoolean($value);
}
} catch (\LogicException $exception) {
if ($exception instanceof \InvalidArgumentException) {
$lastInvalidArgumentException = $exception;
} elseif ($exception instanceof \DomainException) {
$lastDomainException = $exception;
} else {
throw $exception;
}
}
$errorMessage = ErrorMessageCreator::create($value, $unitTypeString);
if (isset($lastDomainException)) {
throw new \DomainException($errorMessage, 0, $lastDomainException);
} elseif (isset($lastInvalidArgumentException)) {
throw new \InvalidArgumentException($errorMessage, 0, $lastInvalidArgumentException);
} else {
throw new \InvalidArgumentException($errorMessage);
}
}
