Add use-statements for builtins

Author: tvdijen

src/Alg/Signature/SignatureAlgorithmFactory.php

@@ -10,6 +10,8 @@
 use SimpleSAML\XMLSecurity\Key\AsymmetricKey;
 use SimpleSAML\XMLSecurity\Key\SymmetricKey;
 
+use function in_array;
+
 /**
  * Factory class to create and configure digital signature algorithms.
  *

src/Backend/HMAC.php

@@ -7,6 +7,8 @@
 use SimpleSAML\XMLSecurity\Key\AbstractKey;
 use SimpleSAML\XMLSecurity\Utils\Security;
 
+use function hash_hmac;
+
 /**
  * Backend for digital signatures based on hash-based message authentication codes.
  *

src/Backend/OpenSSL.php

@@ -10,6 +10,22 @@
 use SimpleSAML\XMLSecurity\Key\PrivateKey;
 use SimpleSAML\XMLSecurity\Utils\Random;
 
+use function chr;
+use function mb_strlen;
+use function openssl_cipher_iv_length;
+use function openssl_decrypt;
+use function openssl_encrypt;
+use function openssl_error_string;
+use function openssl_private_decrypt;
+use function openssl_public_decrypt;
+use function openssl_private_encrypt;
+use function openssl_public_encrypt;
+use function openssl_sign;
+use function openssl_verify;
+use function ord;
+use function str_repeat;
+use function substr;
+
 /**
  * Backend for encryption and digital signatures based on the native openssl library.
  *

src/Exception/InvalidArgumentException.php

@@ -4,6 +4,11 @@
 
 use Throwable;
 
+use function get_class;
+use function gettype;
+use function is_object;
+use function sprintf;
+
 /**
  * Class InvalidArgumentException
  *

src/Key/AsymmetricKey.php

@@ -4,6 +4,8 @@
 
 use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException;
 
+use function file_get_contents;
+
 /**
  * A class representing an asymmetric key.
  *

src/Key/PrivateKey.php

@@ -4,6 +4,8 @@
 
 use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException;
 
+use function openssl_pkey_get_private;
+
 /**
  * A class modeling private keys for their use in asymmetric algorithms.
  *

src/Key/PublicKey.php

@@ -4,6 +4,14 @@
 
 use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException;
 
+use function base64_encode;
+use function chr;
+use function chunk_split;
+use function openssl_pkey_get_public;
+use function ord;
+use function pack;
+use function sprintf;
+
 /**
  * A class modeling public keys for their use in asymmetric algorithms.
  *

src/Key/SymmetricKey.php

@@ -5,6 +5,10 @@
 use SimpleSAML\XMLSecurity\Exception\RuntimeException;
 use SimpleSAML\XMLSecurity\Utils\Random;
 
+use function chr;
+use function ord;
+use function strlen;
+
 /**
  * A class to model symmetric key secrets.
  *

src/Key/X509Certificate.php

@@ -6,6 +6,22 @@
 use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException;
 use SimpleSAML\XMLSecurity\Exception\RuntimeException;
 
+use function array_map;
+use function array_pop;
+use function array_shift;
+use function base64_encode;
+use function explode;
+use function function_exists;
+use function hash;
+use function implode;
+use function openssl_error_string;
+use function openssl_pkey_get_public;
+use function openssl_x509_export;
+use function openssl_x509_fingerprint;
+use function openssl_x509_parse;
+use function openssl_x509_read;
+use function trim;
+
 /**
  * A class modeling X509 certificates.
  *

src/Signature.php

@@ -17,6 +17,26 @@
 use SimpleSAML\XMLSecurity\Utils\Security as Sec;
 use SimpleSAML\XMLSecurity\Utils\XPath as XP;
 
+use function array_key_exists;
+use function array_pop;
+use function array_shift;
+use function array_unshift;
+use function base64_decode;
+use function base64_encode;
+use function count;
+use function explode;
+use function get_class;
+use function hash;
+use function implode;
+use function in_array;
+use function is_array;
+use function is_null;
+use function is_string;
+use function join;
+use function parse_url;
+use function rtrim;
+use function trim;
+
 /**
  * Class implementing XML digital signatures.
  *