sop / asn1

lib/ASN1/Type/Tagged/ImplicitTagging.php

Indentation +11 added lines, -11 removed lines

@@ -13,15 +13,15 @@
  */
 interface ImplicitTagging extends ElementBase
 {
-    /**
-     * Get implicitly tagged wrapped element.
-     *
-     * @param int $tag   Tag of the element
-     * @param int $class Expected type class of the element
-     *
-     * @throws \UnexpectedValueException If expectation fails
-     *
-     * @return \Sop\ASN1\Type\UnspecifiedType
-     */
-    public function implicit(int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType;
+	/**
+	 * Get implicitly tagged wrapped element.
+	 *
+	 * @param int $tag   Tag of the element
+	 * @param int $class Expected type class of the element
+	 *
+	 * @throws \UnexpectedValueException If expectation fails
+	 *
+	 * @return \Sop\ASN1\Type\UnspecifiedType
+	 */
+	public function implicit(int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType;
 }

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Tagged;
 

lib/ASN1/Type/Tagged/ImplicitlyTaggedType.php

Indentation +45 added lines, -45 removed lines

@@ -17,52 +17,52 @@
  */
 class ImplicitlyTaggedType extends TaggedTypeWrap implements ImplicitTagging
 {
-    /**
-     * Constructor.
-     *
-     * @param int     $tag     Tag number
-     * @param Element $element Wrapped element
-     * @param int     $class   Type class
-     */
-    public function __construct(int $tag, Element $element,
-        int $class = Identifier::CLASS_CONTEXT_SPECIFIC)
-    {
-        $this->_typeTag = $tag;
-        $this->_element = $element;
-        $this->_class = $class;
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param int     $tag     Tag number
+	 * @param Element $element Wrapped element
+	 * @param int     $class   Type class
+	 */
+	public function __construct(int $tag, Element $element,
+		int $class = Identifier::CLASS_CONTEXT_SPECIFIC)
+	{
+		$this->_typeTag = $tag;
+		$this->_element = $element;
+		$this->_class = $class;
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function isConstructed(): bool
-    {
-        // depends on the underlying type
-        return $this->_element->isConstructed();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isConstructed(): bool
+	{
+		// depends on the underlying type
+		return $this->_element->isConstructed();
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function implicit(
-        int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType
-    {
-        $this->_element->expectType($tag);
-        if ($this->_element->typeClass() != $class) {
-            throw new \UnexpectedValueException(
-                sprintf('Type class %s expected, got %s.',
-                    Identifier::classToName($class),
-                    Identifier::classToName($this->_element->typeClass())));
-        }
-        return $this->_element->asUnspecified();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function implicit(
+		int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType
+	{
+		$this->_element->expectType($tag);
+		if ($this->_element->typeClass() != $class) {
+			throw new \UnexpectedValueException(
+				sprintf('Type class %s expected, got %s.',
+					Identifier::classToName($class),
+					Identifier::classToName($this->_element->typeClass())));
+		}
+		return $this->_element->asUnspecified();
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        // get only the content of the wrapped element.
-        return $this->_element->_encodedContentDER();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		// get only the content of the wrapped element.
+		return $this->_element->_encodedContentDER();
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Tagged;
 

lib/ASN1/Type/Tagged/DERTaggedType.php

Indentation +124 added lines, -124 removed lines

@@ -23,139 +23,139 @@
  */
 class DERTaggedType extends TaggedType implements ExplicitTagging, ImplicitTagging
 {
-    /**
-     * Identifier.
-     *
-     * @var Identifier
-     */
-    private $_identifier;
+	/**
+	 * Identifier.
+	 *
+	 * @var Identifier
+	 */
+	private $_identifier;
 
-    /**
-     * DER data.
-     *
-     * @var string
-     */
-    private $_data;
+	/**
+	 * DER data.
+	 *
+	 * @var string
+	 */
+	private $_data;
 
-    /**
-     * Offset to next byte after identifier.
-     *
-     * @var int
-     */
-    private $_offset;
+	/**
+	 * Offset to next byte after identifier.
+	 *
+	 * @var int
+	 */
+	private $_offset;
 
-    /**
-     * Offset to content.
-     *
-     * @var int
-     */
-    private $_valueOffset;
+	/**
+	 * Offset to content.
+	 *
+	 * @var int
+	 */
+	private $_valueOffset;
 
-    /**
-     * Length of the content.
-     *
-     * @var int
-     */
-    private $_valueLength;
+	/**
+	 * Length of the content.
+	 *
+	 * @var int
+	 */
+	private $_valueLength;
 
-    /**
-     * Constructor.
-     *
-     * @param Identifier $identifier   Pre-parsed identifier
-     * @param string     $data         DER data
-     * @param int        $offset       Offset to next byte after identifier
-     * @param int        $value_offset Offset to content
-     * @param int        $value_length Content length
-     */
-    public function __construct(Identifier $identifier, string $data,
-        int $offset, int $value_offset, int $value_length,
-        bool $indefinite_length)
-    {
-        $this->_identifier = $identifier;
-        $this->_data = $data;
-        $this->_offset = $offset;
-        $this->_valueOffset = $value_offset;
-        $this->_valueLength = $value_length;
-        $this->_indefiniteLength = $indefinite_length;
-        $this->_typeTag = $identifier->intTag();
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param Identifier $identifier   Pre-parsed identifier
+	 * @param string     $data         DER data
+	 * @param int        $offset       Offset to next byte after identifier
+	 * @param int        $value_offset Offset to content
+	 * @param int        $value_length Content length
+	 */
+	public function __construct(Identifier $identifier, string $data,
+		int $offset, int $value_offset, int $value_length,
+		bool $indefinite_length)
+	{
+		$this->_identifier = $identifier;
+		$this->_data = $data;
+		$this->_offset = $offset;
+		$this->_valueOffset = $value_offset;
+		$this->_valueLength = $value_length;
+		$this->_indefiniteLength = $indefinite_length;
+		$this->_typeTag = $identifier->intTag();
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function typeClass(): int
-    {
-        return $this->_identifier->typeClass();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function typeClass(): int
+	{
+		return $this->_identifier->typeClass();
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function isConstructed(): bool
-    {
-        return $this->_identifier->isConstructed();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isConstructed(): bool
+	{
+		return $this->_identifier->isConstructed();
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function implicit(int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType
-    {
-        $identifier = $this->_identifier->withClass($class)->withTag($tag);
-        $cls = self::_determineImplClass($identifier);
-        $idx = $this->_offset;
-        /** @var \Sop\ASN1\Feature\ElementBase $element */
-        $element = $cls::_decodeFromDER($identifier, $this->_data, $idx);
-        return $element->asUnspecified();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function implicit(int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType
+	{
+		$identifier = $this->_identifier->withClass($class)->withTag($tag);
+		$cls = self::_determineImplClass($identifier);
+		$idx = $this->_offset;
+		/** @var \Sop\ASN1\Feature\ElementBase $element */
+		$element = $cls::_decodeFromDER($identifier, $this->_data, $idx);
+		return $element->asUnspecified();
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function explicit(?int $expectedTag = null): UnspecifiedType
-    {
-        $idx = $this->_valueOffset;
-        $element = Element::fromDER($this->_data, $idx);
-        if (isset($expectedTag)) {
-            $element->expectType($expectedTag);
-        }
-        return $element->asUnspecified();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function explicit(?int $expectedTag = null): UnspecifiedType
+	{
+		$idx = $this->_valueOffset;
+		$element = Element::fromDER($this->_data, $idx);
+		if (isset($expectedTag)) {
+			$element->expectType($expectedTag);
+		}
+		return $element->asUnspecified();
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected static function _decodeFromDER(Identifier $identifier,
-        string $data, int &$offset): ElementBase
-    {
-        $idx = $offset;
-        $length = Length::expectFromDER($data, $idx);
-        // offset to inner value
-        $value_offset = $idx;
-        if ($length->isIndefinite()) {
-            if ($identifier->isPrimitive()) {
-                throw new DecodeException(
-                    'Primitive type with indefinite length is not supported.');
-            }
-            while (!Element::fromDER($data, $idx)->isType(self::TYPE_EOC));
-            // EOC consists of two octets.
-            $value_length = $idx - $value_offset - 2;
-        } else {
-            $value_length = $length->intLength();
-            $idx += $value_length;
-        }
-        // late static binding since ApplicationType and PrivateType extend this class
-        $type = new static($identifier, $data, $offset, $value_offset,
-            $value_length, $length->isIndefinite());
-        $offset = $idx;
-        return $type;
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected static function _decodeFromDER(Identifier $identifier,
+		string $data, int &$offset): ElementBase
+	{
+		$idx = $offset;
+		$length = Length::expectFromDER($data, $idx);
+		// offset to inner value
+		$value_offset = $idx;
+		if ($length->isIndefinite()) {
+			if ($identifier->isPrimitive()) {
+				throw new DecodeException(
+					'Primitive type with indefinite length is not supported.');
+			}
+			while (!Element::fromDER($data, $idx)->isType(self::TYPE_EOC));
+			// EOC consists of two octets.
+			$value_length = $idx - $value_offset - 2;
+		} else {
+			$value_length = $length->intLength();
+			$idx += $value_length;
+		}
+		// late static binding since ApplicationType and PrivateType extend this class
+		$type = new static($identifier, $data, $offset, $value_offset,
+			$value_length, $length->isIndefinite());
+		$offset = $idx;
+		return $type;
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        return substr($this->_data, $this->_valueOffset, $this->_valueLength);
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		return substr($this->_data, $this->_valueOffset, $this->_valueLength);
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Tagged;
 

lib/ASN1/Type/Tagged/ContextSpecificType.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Tagged;
 

lib/ASN1/Type/Tagged/ExplicitTagging.php

Indentation +15 added lines, -15 removed lines

@@ -12,19 +12,19 @@
  */
 interface ExplicitTagging extends ElementBase
 {
-    /**
-     * Get explicitly tagged wrapped element.
-     *
-     * <strong>NOTE!</strong> Expectation checking is deprecated and shall be
-     * done with <code>UnspecifiedType</code>.
-     *
-     * @todo Remove expectation checking
-     *
-     * @param null|int $expectedTag Expected tag of the underlying type
-     *
-     * @throws \UnexpectedValueException If expectation fails
-     *
-     * @return \Sop\ASN1\Type\UnspecifiedType
-     */
-    public function explicit(?int $expectedTag = null): UnspecifiedType;
+	/**
+	 * Get explicitly tagged wrapped element.
+	 *
+	 * <strong>NOTE!</strong> Expectation checking is deprecated and shall be
+	 * done with <code>UnspecifiedType</code>.
+	 *
+	 * @todo Remove expectation checking
+	 *
+	 * @param null|int $expectedTag Expected tag of the underlying type
+	 *
+	 * @throws \UnexpectedValueException If expectation fails
+	 *
+	 * @return \Sop\ASN1\Type\UnspecifiedType
+	 */
+	public function explicit(?int $expectedTag = null): UnspecifiedType;
 }

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Tagged;
 

lib/ASN1/Type/Tagged/TaggedTypeWrap.php

Indentation +21 added lines, -21 removed lines

@@ -11,27 +11,27 @@
  */
 abstract class TaggedTypeWrap extends TaggedType
 {
-    /**
-     * Wrapped element.
-     *
-     * @var \Sop\ASN1\Element
-     */
-    protected $_element;
+	/**
+	 * Wrapped element.
+	 *
+	 * @var \Sop\ASN1\Element
+	 */
+	protected $_element;
 
-    /**
-     * Type class.
-     *
-     * @var int
-     */
-    protected $_class;
+	/**
+	 * Type class.
+	 *
+	 * @var int
+	 */
+	protected $_class;
 
-    /**
-     * @see \Sop\ASN1\Element::typeClass()
-     *
-     * @return int
-     */
-    public function typeClass(): int
-    {
-        return $this->_class;
-    }
+	/**
+	 * @see \Sop\ASN1\Element::typeClass()
+	 *
+	 * @return int
+	 */
+	public function typeClass(): int
+	{
+		return $this->_class;
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Tagged;
 

lib/ASN1/Type/UnspecifiedType.php

Indentation +688 added lines, -688 removed lines

@@ -17,692 +17,692 @@
  */
 class UnspecifiedType implements ElementBase
 {
-    /**
-     * The wrapped element.
-     *
-     * @var Element
-     */
-    private $_element;
-
-    /**
-     * Constructor.
-     *
-     * @param Element $el
-     */
-    public function __construct(Element $el)
-    {
-        $this->_element = $el;
-    }
-
-    /**
-     * Compatibility method to dispatch calls to the wrapped element.
-     *
-     * @todo Remove
-     *
-     * @deprecated Use <code>as*</code> accessor methods to ensure strict type
-     *
-     * @param string $mtd  Method name
-     * @param array  $args Arguments
-     *
-     * @return mixed
-     */
-    public function __call($mtd, array $args)
-    {
-        return call_user_func_array([$this->_element, $mtd], $args);
-    }
-
-    /**
-     * Initialize from DER data.
-     *
-     * @param string $data DER encoded data
-     *
-     * @return self
-     */
-    public static function fromDER(string $data): self
-    {
-        return Element::fromDER($data)->asUnspecified();
-    }
-
-    /**
-     * Initialize from ElementBase interface.
-     *
-     * @param ElementBase $el
-     *
-     * @return self
-     */
-    public static function fromElementBase(ElementBase $el): self
-    {
-        // if element is already wrapped
-        if ($el instanceof self) {
-            return $el;
-        }
-        return new self($el->asElement());
-    }
-
-    /**
-     * Get the wrapped element as a context specific tagged type.
-     *
-     * @throws \UnexpectedValueException If the element is not tagged
-     *
-     * @return TaggedType
-     */
-    public function asTagged(): TaggedType
-    {
-        if (!$this->_element instanceof TaggedType) {
-            throw new \UnexpectedValueException(
-                'Tagged element expected, got ' . $this->_typeDescriptorString());
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an application specific type.
-     *
-     * @throws \UnexpectedValueException If element is not application specific
-     *
-     * @return \Sop\ASN1\Type\Tagged\ApplicationType
-     */
-    public function asApplication(): Tagged\ApplicationType
-    {
-        if (!$this->_element instanceof Tagged\ApplicationType) {
-            throw new \UnexpectedValueException(
-                'Application type expected, got ' .
-                $this->_typeDescriptorString());
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a private tagged type.
-     *
-     * @throws \UnexpectedValueException If element is not using private tagging
-     *
-     * @return \Sop\ASN1\Type\Tagged\PrivateType
-     */
-    public function asPrivate(): Tagged\PrivateType
-    {
-        if (!$this->_element instanceof Tagged\PrivateType) {
-            throw new \UnexpectedValueException(
-                'Private type expected, got ' . $this->_typeDescriptorString());
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a boolean type.
-     *
-     * @throws \UnexpectedValueException If the element is not a boolean
-     *
-     * @return \Sop\ASN1\Type\Primitive\Boolean
-     */
-    public function asBoolean(): Primitive\Boolean
-    {
-        if (!$this->_element instanceof Primitive\Boolean) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_BOOLEAN));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an integer type.
-     *
-     * @throws \UnexpectedValueException If the element is not an integer
-     *
-     * @return \Sop\ASN1\Type\Primitive\Integer
-     */
-    public function asInteger(): Primitive\Integer
-    {
-        if (!$this->_element instanceof Primitive\Integer) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_INTEGER));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a bit string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a bit string
-     *
-     * @return \Sop\ASN1\Type\Primitive\BitString
-     */
-    public function asBitString(): Primitive\BitString
-    {
-        if (!$this->_element instanceof Primitive\BitString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_BIT_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an octet string type.
-     *
-     * @throws \UnexpectedValueException If the element is not an octet string
-     *
-     * @return \Sop\ASN1\Type\Primitive\OctetString
-     */
-    public function asOctetString(): Primitive\OctetString
-    {
-        if (!$this->_element instanceof Primitive\OctetString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_OCTET_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a null type.
-     *
-     * @throws \UnexpectedValueException If the element is not a null
-     *
-     * @return \Sop\ASN1\Type\Primitive\NullType
-     */
-    public function asNull(): Primitive\NullType
-    {
-        if (!$this->_element instanceof Primitive\NullType) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_NULL));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an object identifier type.
-     *
-     * @throws \UnexpectedValueException If the element is not an object
-     *                                   identifier
-     *
-     * @return \Sop\ASN1\Type\Primitive\ObjectIdentifier
-     */
-    public function asObjectIdentifier(): Primitive\ObjectIdentifier
-    {
-        if (!$this->_element instanceof Primitive\ObjectIdentifier) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(
-                    Element::TYPE_OBJECT_IDENTIFIER));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an object descriptor type.
-     *
-     * @throws \UnexpectedValueException If the element is not an object
-     *                                   descriptor
-     *
-     * @return \Sop\ASN1\Type\Primitive\ObjectDescriptor
-     */
-    public function asObjectDescriptor(): Primitive\ObjectDescriptor
-    {
-        if (!$this->_element instanceof Primitive\ObjectDescriptor) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(
-                    Element::TYPE_OBJECT_DESCRIPTOR));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a real type.
-     *
-     * @throws \UnexpectedValueException If the element is not a real
-     *
-     * @return \Sop\ASN1\Type\Primitive\Real
-     */
-    public function asReal(): Primitive\Real
-    {
-        if (!$this->_element instanceof Primitive\Real) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_REAL));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an enumerated type.
-     *
-     * @throws \UnexpectedValueException If the element is not an enumerated
-     *
-     * @return \Sop\ASN1\Type\Primitive\Enumerated
-     */
-    public function asEnumerated(): Primitive\Enumerated
-    {
-        if (!$this->_element instanceof Primitive\Enumerated) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_ENUMERATED));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a UTF8 string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a UTF8 string
-     *
-     * @return \Sop\ASN1\Type\Primitive\UTF8String
-     */
-    public function asUTF8String(): Primitive\UTF8String
-    {
-        if (!$this->_element instanceof Primitive\UTF8String) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_UTF8_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a relative OID type.
-     *
-     * @throws \UnexpectedValueException If the element is not a relative OID
-     *
-     * @return \Sop\ASN1\Type\Primitive\RelativeOID
-     */
-    public function asRelativeOID(): Primitive\RelativeOID
-    {
-        if (!$this->_element instanceof Primitive\RelativeOID) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_RELATIVE_OID));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a sequence type.
-     *
-     * @throws \UnexpectedValueException If the element is not a sequence
-     *
-     * @return \Sop\ASN1\Type\Constructed\Sequence
-     */
-    public function asSequence(): Constructed\Sequence
-    {
-        if (!$this->_element instanceof Constructed\Sequence) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_SEQUENCE));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a set type.
-     *
-     * @throws \UnexpectedValueException If the element is not a set
-     *
-     * @return \Sop\ASN1\Type\Constructed\Set
-     */
-    public function asSet(): Constructed\Set
-    {
-        if (!$this->_element instanceof Constructed\Set) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_SET));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a numeric string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a numeric string
-     *
-     * @return \Sop\ASN1\Type\Primitive\NumericString
-     */
-    public function asNumericString(): Primitive\NumericString
-    {
-        if (!$this->_element instanceof Primitive\NumericString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_NUMERIC_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a printable string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a printable
-     *                                   string
-     *
-     * @return \Sop\ASN1\Type\Primitive\PrintableString
-     */
-    public function asPrintableString(): Primitive\PrintableString
-    {
-        if (!$this->_element instanceof Primitive\PrintableString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_PRINTABLE_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a T61 string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a T61 string
-     *
-     * @return \Sop\ASN1\Type\Primitive\T61String
-     */
-    public function asT61String(): Primitive\T61String
-    {
-        if (!$this->_element instanceof Primitive\T61String) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_T61_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a videotex string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a videotex string
-     *
-     * @return \Sop\ASN1\Type\Primitive\VideotexString
-     */
-    public function asVideotexString(): Primitive\VideotexString
-    {
-        if (!$this->_element instanceof Primitive\VideotexString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_VIDEOTEX_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a IA5 string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a IA5 string
-     *
-     * @return \Sop\ASN1\Type\Primitive\IA5String
-     */
-    public function asIA5String(): Primitive\IA5String
-    {
-        if (!$this->_element instanceof Primitive\IA5String) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_IA5_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an UTC time type.
-     *
-     * @throws \UnexpectedValueException If the element is not a UTC time
-     *
-     * @return \Sop\ASN1\Type\Primitive\UTCTime
-     */
-    public function asUTCTime(): Primitive\UTCTime
-    {
-        if (!$this->_element instanceof Primitive\UTCTime) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_UTC_TIME));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a generalized time type.
-     *
-     * @throws \UnexpectedValueException If the element is not a generalized
-     *                                   time
-     *
-     * @return \Sop\ASN1\Type\Primitive\GeneralizedTime
-     */
-    public function asGeneralizedTime(): Primitive\GeneralizedTime
-    {
-        if (!$this->_element instanceof Primitive\GeneralizedTime) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_GENERALIZED_TIME));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a graphic string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a graphic string
-     *
-     * @return \Sop\ASN1\Type\Primitive\GraphicString
-     */
-    public function asGraphicString(): Primitive\GraphicString
-    {
-        if (!$this->_element instanceof Primitive\GraphicString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_GRAPHIC_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a visible string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a visible string
-     *
-     * @return \Sop\ASN1\Type\Primitive\VisibleString
-     */
-    public function asVisibleString(): Primitive\VisibleString
-    {
-        if (!$this->_element instanceof Primitive\VisibleString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_VISIBLE_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a general string type.
-     *
-     * @throws \UnexpectedValueException If the element is not general string
-     *
-     * @return \Sop\ASN1\Type\Primitive\GeneralString
-     */
-    public function asGeneralString(): Primitive\GeneralString
-    {
-        if (!$this->_element instanceof Primitive\GeneralString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_GENERAL_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a universal string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a universal
-     *                                   string
-     *
-     * @return \Sop\ASN1\Type\Primitive\UniversalString
-     */
-    public function asUniversalString(): Primitive\UniversalString
-    {
-        if (!$this->_element instanceof Primitive\UniversalString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_UNIVERSAL_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a character string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a character
-     *                                   string
-     *
-     * @return \Sop\ASN1\Type\Primitive\CharacterString
-     */
-    public function asCharacterString(): Primitive\CharacterString
-    {
-        if (!$this->_element instanceof Primitive\CharacterString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_CHARACTER_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a BMP string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a bmp string
-     *
-     * @return \Sop\ASN1\Type\Primitive\BMPString
-     */
-    public function asBMPString(): Primitive\BMPString
-    {
-        if (!$this->_element instanceof Primitive\BMPString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_BMP_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as any string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a string
-     *
-     * @return StringType
-     */
-    public function asString(): StringType
-    {
-        if (!$this->_element instanceof StringType) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as any time type.
-     *
-     * @throws \UnexpectedValueException If the element is not a time
-     *
-     * @return TimeType
-     */
-    public function asTime(): TimeType
-    {
-        if (!$this->_element instanceof TimeType) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_TIME));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function toDER(): string
-    {
-        return $this->_element->toDER();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function typeClass(): int
-    {
-        return $this->_element->typeClass();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function isConstructed(): bool
-    {
-        return $this->_element->isConstructed();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function tag(): int
-    {
-        return $this->_element->tag();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function isType(int $tag): bool
-    {
-        return $this->_element->isType($tag);
-    }
-
-    /**
-     * @todo Remove
-     *
-     * @deprecated use any <code>as*</code> accessor method first to ensure
-     *             type strictness
-     * @see \Sop\ASN1\Feature\ElementBase::expectType()
-     *
-     * @return ElementBase
-     */
-    public function expectType(int $tag): ElementBase
-    {
-        return $this->_element->expectType($tag);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function isTagged(): bool
-    {
-        return $this->_element->isTagged();
-    }
-
-    /**
-     * @todo Remove
-     *
-     * @deprecated use any <code>as*</code> accessor method first to ensure
-     *             type strictness
-     * @see \Sop\ASN1\Feature\ElementBase::expectTagged()
-     *
-     * @param null|mixed $tag
-     *
-     * @return TaggedType
-     */
-    public function expectTagged(?int $tag = null): TaggedType
-    {
-        return $this->_element->expectTagged($tag);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function asElement(): Element
-    {
-        return $this->_element;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function asUnspecified(): UnspecifiedType
-    {
-        return $this;
-    }
-
-    /**
-     * Generate message for exceptions thrown by <code>as*</code> methods.
-     *
-     * @param int $tag Type tag of the expected element
-     *
-     * @return string
-     */
-    private function _generateExceptionMessage(int $tag): string
-    {
-        return sprintf('%s expected, got %s.', Element::tagToName($tag),
-            $this->_typeDescriptorString());
-    }
-
-    /**
-     * Get textual description of the wrapped element for debugging purposes.
-     *
-     * @return string
-     */
-    private function _typeDescriptorString(): string
-    {
-        $type_cls = $this->_element->typeClass();
-        $tag = $this->_element->tag();
-        if (Identifier::CLASS_UNIVERSAL == $type_cls) {
-            return Element::tagToName($tag);
-        }
-        return Identifier::classToName($type_cls) . " TAG ${tag}";
-    }
+	/**
+	 * The wrapped element.
+	 *
+	 * @var Element
+	 */
+	private $_element;
+
+	/**
+	 * Constructor.
+	 *
+	 * @param Element $el
+	 */
+	public function __construct(Element $el)
+	{
+		$this->_element = $el;
+	}
+
+	/**
+	 * Compatibility method to dispatch calls to the wrapped element.
+	 *
+	 * @todo Remove
+	 *
+	 * @deprecated Use <code>as*</code> accessor methods to ensure strict type
+	 *
+	 * @param string $mtd  Method name
+	 * @param array  $args Arguments
+	 *
+	 * @return mixed
+	 */
+	public function __call($mtd, array $args)
+	{
+		return call_user_func_array([$this->_element, $mtd], $args);
+	}
+
+	/**
+	 * Initialize from DER data.
+	 *
+	 * @param string $data DER encoded data
+	 *
+	 * @return self
+	 */
+	public static function fromDER(string $data): self
+	{
+		return Element::fromDER($data)->asUnspecified();
+	}
+
+	/**
+	 * Initialize from ElementBase interface.
+	 *
+	 * @param ElementBase $el
+	 *
+	 * @return self
+	 */
+	public static function fromElementBase(ElementBase $el): self
+	{
+		// if element is already wrapped
+		if ($el instanceof self) {
+			return $el;
+		}
+		return new self($el->asElement());
+	}
+
+	/**
+	 * Get the wrapped element as a context specific tagged type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not tagged
+	 *
+	 * @return TaggedType
+	 */
+	public function asTagged(): TaggedType
+	{
+		if (!$this->_element instanceof TaggedType) {
+			throw new \UnexpectedValueException(
+				'Tagged element expected, got ' . $this->_typeDescriptorString());
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an application specific type.
+	 *
+	 * @throws \UnexpectedValueException If element is not application specific
+	 *
+	 * @return \Sop\ASN1\Type\Tagged\ApplicationType
+	 */
+	public function asApplication(): Tagged\ApplicationType
+	{
+		if (!$this->_element instanceof Tagged\ApplicationType) {
+			throw new \UnexpectedValueException(
+				'Application type expected, got ' .
+				$this->_typeDescriptorString());
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a private tagged type.
+	 *
+	 * @throws \UnexpectedValueException If element is not using private tagging
+	 *
+	 * @return \Sop\ASN1\Type\Tagged\PrivateType
+	 */
+	public function asPrivate(): Tagged\PrivateType
+	{
+		if (!$this->_element instanceof Tagged\PrivateType) {
+			throw new \UnexpectedValueException(
+				'Private type expected, got ' . $this->_typeDescriptorString());
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a boolean type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a boolean
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Boolean
+	 */
+	public function asBoolean(): Primitive\Boolean
+	{
+		if (!$this->_element instanceof Primitive\Boolean) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_BOOLEAN));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an integer type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an integer
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Integer
+	 */
+	public function asInteger(): Primitive\Integer
+	{
+		if (!$this->_element instanceof Primitive\Integer) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_INTEGER));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a bit string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a bit string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\BitString
+	 */
+	public function asBitString(): Primitive\BitString
+	{
+		if (!$this->_element instanceof Primitive\BitString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_BIT_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an octet string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an octet string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\OctetString
+	 */
+	public function asOctetString(): Primitive\OctetString
+	{
+		if (!$this->_element instanceof Primitive\OctetString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_OCTET_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a null type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a null
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\NullType
+	 */
+	public function asNull(): Primitive\NullType
+	{
+		if (!$this->_element instanceof Primitive\NullType) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_NULL));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an object identifier type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an object
+	 *                                   identifier
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\ObjectIdentifier
+	 */
+	public function asObjectIdentifier(): Primitive\ObjectIdentifier
+	{
+		if (!$this->_element instanceof Primitive\ObjectIdentifier) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(
+					Element::TYPE_OBJECT_IDENTIFIER));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an object descriptor type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an object
+	 *                                   descriptor
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\ObjectDescriptor
+	 */
+	public function asObjectDescriptor(): Primitive\ObjectDescriptor
+	{
+		if (!$this->_element instanceof Primitive\ObjectDescriptor) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(
+					Element::TYPE_OBJECT_DESCRIPTOR));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a real type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a real
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Real
+	 */
+	public function asReal(): Primitive\Real
+	{
+		if (!$this->_element instanceof Primitive\Real) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_REAL));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an enumerated type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an enumerated
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Enumerated
+	 */
+	public function asEnumerated(): Primitive\Enumerated
+	{
+		if (!$this->_element instanceof Primitive\Enumerated) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_ENUMERATED));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a UTF8 string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a UTF8 string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\UTF8String
+	 */
+	public function asUTF8String(): Primitive\UTF8String
+	{
+		if (!$this->_element instanceof Primitive\UTF8String) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_UTF8_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a relative OID type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a relative OID
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\RelativeOID
+	 */
+	public function asRelativeOID(): Primitive\RelativeOID
+	{
+		if (!$this->_element instanceof Primitive\RelativeOID) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_RELATIVE_OID));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a sequence type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a sequence
+	 *
+	 * @return \Sop\ASN1\Type\Constructed\Sequence
+	 */
+	public function asSequence(): Constructed\Sequence
+	{
+		if (!$this->_element instanceof Constructed\Sequence) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_SEQUENCE));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a set type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a set
+	 *
+	 * @return \Sop\ASN1\Type\Constructed\Set
+	 */
+	public function asSet(): Constructed\Set
+	{
+		if (!$this->_element instanceof Constructed\Set) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_SET));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a numeric string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a numeric string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\NumericString
+	 */
+	public function asNumericString(): Primitive\NumericString
+	{
+		if (!$this->_element instanceof Primitive\NumericString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_NUMERIC_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a printable string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a printable
+	 *                                   string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\PrintableString
+	 */
+	public function asPrintableString(): Primitive\PrintableString
+	{
+		if (!$this->_element instanceof Primitive\PrintableString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_PRINTABLE_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a T61 string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a T61 string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\T61String
+	 */
+	public function asT61String(): Primitive\T61String
+	{
+		if (!$this->_element instanceof Primitive\T61String) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_T61_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a videotex string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a videotex string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\VideotexString
+	 */
+	public function asVideotexString(): Primitive\VideotexString
+	{
+		if (!$this->_element instanceof Primitive\VideotexString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_VIDEOTEX_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a IA5 string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a IA5 string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\IA5String
+	 */
+	public function asIA5String(): Primitive\IA5String
+	{
+		if (!$this->_element instanceof Primitive\IA5String) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_IA5_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an UTC time type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a UTC time
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\UTCTime
+	 */
+	public function asUTCTime(): Primitive\UTCTime
+	{
+		if (!$this->_element instanceof Primitive\UTCTime) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_UTC_TIME));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a generalized time type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a generalized
+	 *                                   time
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\GeneralizedTime
+	 */
+	public function asGeneralizedTime(): Primitive\GeneralizedTime
+	{
+		if (!$this->_element instanceof Primitive\GeneralizedTime) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_GENERALIZED_TIME));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a graphic string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a graphic string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\GraphicString
+	 */
+	public function asGraphicString(): Primitive\GraphicString
+	{
+		if (!$this->_element instanceof Primitive\GraphicString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_GRAPHIC_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a visible string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a visible string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\VisibleString
+	 */
+	public function asVisibleString(): Primitive\VisibleString
+	{
+		if (!$this->_element instanceof Primitive\VisibleString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_VISIBLE_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a general string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not general string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\GeneralString
+	 */
+	public function asGeneralString(): Primitive\GeneralString
+	{
+		if (!$this->_element instanceof Primitive\GeneralString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_GENERAL_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a universal string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a universal
+	 *                                   string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\UniversalString
+	 */
+	public function asUniversalString(): Primitive\UniversalString
+	{
+		if (!$this->_element instanceof Primitive\UniversalString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_UNIVERSAL_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a character string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a character
+	 *                                   string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\CharacterString
+	 */
+	public function asCharacterString(): Primitive\CharacterString
+	{
+		if (!$this->_element instanceof Primitive\CharacterString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_CHARACTER_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a BMP string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a bmp string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\BMPString
+	 */
+	public function asBMPString(): Primitive\BMPString
+	{
+		if (!$this->_element instanceof Primitive\BMPString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_BMP_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as any string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a string
+	 *
+	 * @return StringType
+	 */
+	public function asString(): StringType
+	{
+		if (!$this->_element instanceof StringType) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as any time type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a time
+	 *
+	 * @return TimeType
+	 */
+	public function asTime(): TimeType
+	{
+		if (!$this->_element instanceof TimeType) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_TIME));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function toDER(): string
+	{
+		return $this->_element->toDER();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function typeClass(): int
+	{
+		return $this->_element->typeClass();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isConstructed(): bool
+	{
+		return $this->_element->isConstructed();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function tag(): int
+	{
+		return $this->_element->tag();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isType(int $tag): bool
+	{
+		return $this->_element->isType($tag);
+	}
+
+	/**
+	 * @todo Remove
+	 *
+	 * @deprecated use any <code>as*</code> accessor method first to ensure
+	 *             type strictness
+	 * @see \Sop\ASN1\Feature\ElementBase::expectType()
+	 *
+	 * @return ElementBase
+	 */
+	public function expectType(int $tag): ElementBase
+	{
+		return $this->_element->expectType($tag);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isTagged(): bool
+	{
+		return $this->_element->isTagged();
+	}
+
+	/**
+	 * @todo Remove
+	 *
+	 * @deprecated use any <code>as*</code> accessor method first to ensure
+	 *             type strictness
+	 * @see \Sop\ASN1\Feature\ElementBase::expectTagged()
+	 *
+	 * @param null|mixed $tag
+	 *
+	 * @return TaggedType
+	 */
+	public function expectTagged(?int $tag = null): TaggedType
+	{
+		return $this->_element->expectTagged($tag);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function asElement(): Element
+	{
+		return $this->_element;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function asUnspecified(): UnspecifiedType
+	{
+		return $this;
+	}
+
+	/**
+	 * Generate message for exceptions thrown by <code>as*</code> methods.
+	 *
+	 * @param int $tag Type tag of the expected element
+	 *
+	 * @return string
+	 */
+	private function _generateExceptionMessage(int $tag): string
+	{
+		return sprintf('%s expected, got %s.', Element::tagToName($tag),
+			$this->_typeDescriptorString());
+	}
+
+	/**
+	 * Get textual description of the wrapped element for debugging purposes.
+	 *
+	 * @return string
+	 */
+	private function _typeDescriptorString(): string
+	{
+		$type_cls = $this->_element->typeClass();
+		$tag = $this->_element->tag();
+		if (Identifier::CLASS_UNIVERSAL == $type_cls) {
+			return Element::tagToName($tag);
+		}
+		return Identifier::classToName($type_cls) . " TAG ${tag}";
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type;
 

lib/ASN1/Type/Primitive/Real.php

Indentation +255 added lines, -255 removed lines

@@ -17,276 +17,276 @@
  */
 class Real extends Element
 {
-    use UniversalClass;
-    use PrimitiveType;
+	use UniversalClass;
+	use PrimitiveType;
 
-    /**
-     * Regex pattern to parse NR3 form number conforming to DER.
-     *
-     * @var string
-     */
-    const NR3_REGEX = '/^(-?)(\d+)?\.E([+\-]?\d+)$/';
+	/**
+	 * Regex pattern to parse NR3 form number conforming to DER.
+	 *
+	 * @var string
+	 */
+	const NR3_REGEX = '/^(-?)(\d+)?\.E([+\-]?\d+)$/';
 
-    /**
-     * Regex pattern to parse PHP exponent number format.
-     *
-     * @see http://php.net/manual/en/language.types.float.php
-     *
-     * @var string
-     */
-    const PHP_EXPONENT_DNUM = '/^' .
-        '([+\-]?' . // sign
-        '(?:' .
-            '\d+' . // LNUM
-            '|' .
-            '(?:\d*\.\d+|\d+\.\d*)' . // DNUM
-        '))[eE]' .
-        '([+\-]?\d+)' . // exponent
-    '$/';
+	/**
+	 * Regex pattern to parse PHP exponent number format.
+	 *
+	 * @see http://php.net/manual/en/language.types.float.php
+	 *
+	 * @var string
+	 */
+	const PHP_EXPONENT_DNUM = '/^' .
+		'([+\-]?' . // sign
+		'(?:' .
+			'\d+' . // LNUM
+			'|' .
+			'(?:\d*\.\d+|\d+\.\d*)' . // DNUM
+		'))[eE]' .
+		'([+\-]?\d+)' . // exponent
+	'$/';
 
-    /**
-     * Number zero represented in NR3 form.
-     *
-     * @var string
-     */
-    const NR3_ZERO = '.E+0';
+	/**
+	 * Number zero represented in NR3 form.
+	 *
+	 * @var string
+	 */
+	const NR3_ZERO = '.E+0';
 
-    /**
-     * Number in NR3 form.
-     *
-     * @var string
-     */
-    private $_number;
+	/**
+	 * Number in NR3 form.
+	 *
+	 * @var string
+	 */
+	private $_number;
 
-    /**
-     * Constructor.
-     *
-     * @param string $number number in NR3 form
-     */
-    public function __construct(string $number)
-    {
-        $this->_typeTag = self::TYPE_REAL;
-        if (!self::_validateNumber($number)) {
-            throw new \InvalidArgumentException(
-                "'${number}' is not a valid NR3 form real.");
-        }
-        $this->_number = $number;
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $number number in NR3 form
+	 */
+	public function __construct(string $number)
+	{
+		$this->_typeTag = self::TYPE_REAL;
+		if (!self::_validateNumber($number)) {
+			throw new \InvalidArgumentException(
+				"'${number}' is not a valid NR3 form real.");
+		}
+		$this->_number = $number;
+	}
 
-    /**
-     * Initialize from float.
-     *
-     * @param float $number
-     *
-     * @return self
-     */
-    public static function fromFloat(float $number): self
-    {
-        return new self(self::_decimalToNR3(strval($number)));
-    }
+	/**
+	 * Initialize from float.
+	 *
+	 * @param float $number
+	 *
+	 * @return self
+	 */
+	public static function fromFloat(float $number): self
+	{
+		return new self(self::_decimalToNR3(strval($number)));
+	}
 
-    /**
-     * Get number as a float.
-     *
-     * @return float
-     */
-    public function float(): float
-    {
-        return self::_nr3ToDecimal($this->_number);
-    }
+	/**
+	 * Get number as a float.
+	 *
+	 * @return float
+	 */
+	public function float(): float
+	{
+		return self::_nr3ToDecimal($this->_number);
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        /* if the real value is the value zero, there shall be no contents
+	/**
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		/* if the real value is the value zero, there shall be no contents
          octets in the encoding. (X.690 07-2002, section 8.5.2) */
-        if (self::NR3_ZERO == $this->_number) {
-            return '';
-        }
-        // encode in NR3 decimal encoding
-        return chr(0x03) . $this->_number;
-    }
+		if (self::NR3_ZERO == $this->_number) {
+			return '';
+		}
+		// encode in NR3 decimal encoding
+		return chr(0x03) . $this->_number;
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected static function _decodeFromDER(Identifier $identifier,
-        string $data, int &$offset): ElementBase
-    {
-        $idx = $offset;
-        $length = Length::expectFromDER($data, $idx)->intLength();
-        // if length is zero, value is zero (spec 8.5.2)
-        if (!$length) {
-            $obj = new self(self::NR3_ZERO);
-        } else {
-            $bytes = substr($data, $idx, $length);
-            $byte = ord($bytes[0]);
-            if (0x80 & $byte) { // bit 8 = 1
-                $obj = self::_decodeBinaryEncoding($bytes);
-            } elseif (0x00 == $byte >> 6) { // bit 8 = 0, bit 7 = 0
-                $obj = self::_decodeDecimalEncoding($bytes);
-            } else { // bit 8 = 0, bit 7 = 1
-                $obj = self::_decodeSpecialRealValue($bytes);
-            }
-        }
-        $offset = $idx + $length;
-        return $obj;
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected static function _decodeFromDER(Identifier $identifier,
+		string $data, int &$offset): ElementBase
+	{
+		$idx = $offset;
+		$length = Length::expectFromDER($data, $idx)->intLength();
+		// if length is zero, value is zero (spec 8.5.2)
+		if (!$length) {
+			$obj = new self(self::NR3_ZERO);
+		} else {
+			$bytes = substr($data, $idx, $length);
+			$byte = ord($bytes[0]);
+			if (0x80 & $byte) { // bit 8 = 1
+				$obj = self::_decodeBinaryEncoding($bytes);
+			} elseif (0x00 == $byte >> 6) { // bit 8 = 0, bit 7 = 0
+				$obj = self::_decodeDecimalEncoding($bytes);
+			} else { // bit 8 = 0, bit 7 = 1
+				$obj = self::_decodeSpecialRealValue($bytes);
+			}
+		}
+		$offset = $idx + $length;
+		return $obj;
+	}
 
-    /**
-     * @todo Implement
-     *
-     * @param string $data
-     */
-    protected static function _decodeBinaryEncoding(string $data)
-    {
-        throw new \RuntimeException(
-            'Binary encoding of REAL is not implemented.');
-    }
+	/**
+	 * @todo Implement
+	 *
+	 * @param string $data
+	 */
+	protected static function _decodeBinaryEncoding(string $data)
+	{
+		throw new \RuntimeException(
+			'Binary encoding of REAL is not implemented.');
+	}
 
-    /**
-     * @param string $data
-     *
-     * @throws \RuntimeException
-     *
-     * @return self
-     */
-    protected static function _decodeDecimalEncoding(string $data): self
-    {
-        $nr = ord($data[0]) & 0x03;
-        if (0x03 != $nr) {
-            throw new \RuntimeException('Only NR3 form supported.');
-        }
-        $str = substr($data, 1);
-        return new self($str);
-    }
+	/**
+	 * @param string $data
+	 *
+	 * @throws \RuntimeException
+	 *
+	 * @return self
+	 */
+	protected static function _decodeDecimalEncoding(string $data): self
+	{
+		$nr = ord($data[0]) & 0x03;
+		if (0x03 != $nr) {
+			throw new \RuntimeException('Only NR3 form supported.');
+		}
+		$str = substr($data, 1);
+		return new self($str);
+	}
 
-    /**
-     * @todo Implement
-     *
-     * @param string $data
-     */
-    protected static function _decodeSpecialRealValue(string $data)
-    {
-        if (1 != strlen($data)) {
-            throw new DecodeException(
-                'SpecialRealValue must have one content octet.');
-        }
-        $byte = ord($data[0]);
-        if (0x40 == $byte) { // positive infinity
-            throw new \RuntimeException('PLUS-INFINITY not supported.');
-        }
-        if (0x41 == $byte) { // negative infinity
-            throw new \RuntimeException('MINUS-INFINITY not supported.');
-        }
-        throw new DecodeException('Invalid SpecialRealValue encoding.');
-    }
+	/**
+	 * @todo Implement
+	 *
+	 * @param string $data
+	 */
+	protected static function _decodeSpecialRealValue(string $data)
+	{
+		if (1 != strlen($data)) {
+			throw new DecodeException(
+				'SpecialRealValue must have one content octet.');
+		}
+		$byte = ord($data[0]);
+		if (0x40 == $byte) { // positive infinity
+			throw new \RuntimeException('PLUS-INFINITY not supported.');
+		}
+		if (0x41 == $byte) { // negative infinity
+			throw new \RuntimeException('MINUS-INFINITY not supported.');
+		}
+		throw new DecodeException('Invalid SpecialRealValue encoding.');
+	}
 
-    /**
-     * Convert decimal number string to NR3 form.
-     *
-     * @param string $str
-     *
-     * @return string
-     */
-    private static function _decimalToNR3(string $str): string
-    {
-        // if number is in exponent form
-        /** @var string[] $match */
-        if (preg_match(self::PHP_EXPONENT_DNUM, $str, $match)) {
-            $parts = explode('.', $match[1]);
-            $m = ltrim($parts[0], '0');
-            $e = intval($match[2]);
-            // if mantissa had decimals
-            if (2 == count($parts)) {
-                $d = rtrim($parts[1], '0');
-                $e -= strlen($d);
-                $m .= $d;
-            }
-        } else {
-            // explode from decimal
-            $parts = explode('.', $str);
-            $m = ltrim($parts[0], '0');
-            // if number had decimals
-            if (2 == count($parts)) {
-                // exponent is negative number of the decimals
-                $e = -strlen($parts[1]);
-                // append decimals to the mantissa
-                $m .= $parts[1];
-            } else {
-                $e = 0;
-            }
-            // shift trailing zeroes from the mantissa to the exponent
-            while ('0' === substr($m, -1)) {
-                ++$e;
-                $m = substr($m, 0, -1);
-            }
-        }
-        /* if exponent is zero, it must be prefixed with a "+" sign
+	/**
+	 * Convert decimal number string to NR3 form.
+	 *
+	 * @param string $str
+	 *
+	 * @return string
+	 */
+	private static function _decimalToNR3(string $str): string
+	{
+		// if number is in exponent form
+		/** @var string[] $match */
+		if (preg_match(self::PHP_EXPONENT_DNUM, $str, $match)) {
+			$parts = explode('.', $match[1]);
+			$m = ltrim($parts[0], '0');
+			$e = intval($match[2]);
+			// if mantissa had decimals
+			if (2 == count($parts)) {
+				$d = rtrim($parts[1], '0');
+				$e -= strlen($d);
+				$m .= $d;
+			}
+		} else {
+			// explode from decimal
+			$parts = explode('.', $str);
+			$m = ltrim($parts[0], '0');
+			// if number had decimals
+			if (2 == count($parts)) {
+				// exponent is negative number of the decimals
+				$e = -strlen($parts[1]);
+				// append decimals to the mantissa
+				$m .= $parts[1];
+			} else {
+				$e = 0;
+			}
+			// shift trailing zeroes from the mantissa to the exponent
+			while ('0' === substr($m, -1)) {
+				++$e;
+				$m = substr($m, 0, -1);
+			}
+		}
+		/* if exponent is zero, it must be prefixed with a "+" sign
          (X.690 07-2002, section 11.3.2.6) */
-        if (0 == $e) {
-            $es = '+';
-        } else {
-            $es = $e < 0 ? '-' : '';
-        }
-        return sprintf('%s.E%s%d', $m, $es, abs($e));
-    }
+		if (0 == $e) {
+			$es = '+';
+		} else {
+			$es = $e < 0 ? '-' : '';
+		}
+		return sprintf('%s.E%s%d', $m, $es, abs($e));
+	}
 
-    /**
-     * Convert NR3 form number to decimal.
-     *
-     * @param string $str
-     *
-     * @throws \UnexpectedValueException
-     *
-     * @return float
-     */
-    private static function _nr3ToDecimal(string $str): float
-    {
-        /** @var string[] $match */
-        if (!preg_match(self::NR3_REGEX, $str, $match)) {
-            throw new \UnexpectedValueException(
-                "'${str}' is not a valid NR3 form real.");
-        }
-        $m = $match[2];
-        // if number started with minus sign
-        $inv = '-' == $match[1];
-        $e = intval($match[3]);
-        // positive exponent
-        if ($e > 0) {
-            // pad with trailing zeroes
-            $num = $m . str_repeat('0', $e);
-        } elseif ($e < 0) {
-            // pad with leading zeroes
-            if (strlen($m) < abs($e)) {
-                $m = str_repeat('0', abs($e) - strlen($m)) . $m;
-            }
-            // insert decimal point
-            $num = substr($m, 0, $e) . '.' . substr($m, $e);
-        } else {
-            $num = empty($m) ? '0' : $m;
-        }
-        // if number is negative
-        if ($inv) {
-            $num = "-${num}";
-        }
-        return floatval($num);
-    }
+	/**
+	 * Convert NR3 form number to decimal.
+	 *
+	 * @param string $str
+	 *
+	 * @throws \UnexpectedValueException
+	 *
+	 * @return float
+	 */
+	private static function _nr3ToDecimal(string $str): float
+	{
+		/** @var string[] $match */
+		if (!preg_match(self::NR3_REGEX, $str, $match)) {
+			throw new \UnexpectedValueException(
+				"'${str}' is not a valid NR3 form real.");
+		}
+		$m = $match[2];
+		// if number started with minus sign
+		$inv = '-' == $match[1];
+		$e = intval($match[3]);
+		// positive exponent
+		if ($e > 0) {
+			// pad with trailing zeroes
+			$num = $m . str_repeat('0', $e);
+		} elseif ($e < 0) {
+			// pad with leading zeroes
+			if (strlen($m) < abs($e)) {
+				$m = str_repeat('0', abs($e) - strlen($m)) . $m;
+			}
+			// insert decimal point
+			$num = substr($m, 0, $e) . '.' . substr($m, $e);
+		} else {
+			$num = empty($m) ? '0' : $m;
+		}
+		// if number is negative
+		if ($inv) {
+			$num = "-${num}";
+		}
+		return floatval($num);
+	}
 
-    /**
-     * Test that number is valid for this context.
-     *
-     * @param mixed $num
-     *
-     * @return bool
-     */
-    private static function _validateNumber($num): bool
-    {
-        if (!preg_match(self::NR3_REGEX, $num)) {
-            return false;
-        }
-        return true;
-    }
+	/**
+	 * Test that number is valid for this context.
+	 *
+	 * @param mixed $num
+	 *
+	 * @return bool
+	 */
+	private static function _validateNumber($num): bool
+	{
+		if (!preg_match(self::NR3_REGEX, $num)) {
+			return false;
+		}
+		return true;
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Primitive;
 

lib/ASN1/Type/Primitive/Enumerated.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace Sop\ASN1\Type\Primitive;