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   1  <?php
   2  
   3  if (class_exists('ParagonIE_Sodium_Core_Curve25519_Ge_Precomp', false)) {
   4      return;
   5  }
   6  
   7  /**
   8   * Class ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
   9   */
  10  class ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
  11  {
  12      /**
  13       * @var ParagonIE_Sodium_Core_Curve25519_Fe
  14       */
  15      public $yplusx;
  16  
  17      /**
  18       * @var ParagonIE_Sodium_Core_Curve25519_Fe
  19       */
  20      public $yminusx;
  21  
  22      /**
  23       * @var ParagonIE_Sodium_Core_Curve25519_Fe
  24       */
  25      public $xy2d;
  26  
  27      /**
  28       * ParagonIE_Sodium_Core_Curve25519_Ge_Precomp constructor.
  29       *
  30       * @internal You should not use this directly from another application
  31       *
  32       * @param ParagonIE_Sodium_Core_Curve25519_Fe $yplusx
  33       * @param ParagonIE_Sodium_Core_Curve25519_Fe $yminusx
  34       * @param ParagonIE_Sodium_Core_Curve25519_Fe $xy2d
  35       */
  36      public function __construct(
  37          $yplusx = null,
  38          $yminusx = null,
  39          $xy2d = null
  40      ) {
  41          if ($yplusx === null) {
  42              $yplusx = new ParagonIE_Sodium_Core_Curve25519_Fe();
  43          }
  44          if (!($yplusx instanceof ParagonIE_Sodium_Core_Curve25519_Fe)) {
  45              throw new TypeError('Argument 1 must be an instance of ParagonIE_Sodium_Core_Curve25519_Fe');
  46          }
  47          $this->yplusx = $yplusx;
  48          if ($yminusx === null) {
  49              $yminusx = new ParagonIE_Sodium_Core_Curve25519_Fe();
  50          }
  51          if (!($yminusx instanceof ParagonIE_Sodium_Core_Curve25519_Fe)) {
  52              throw new TypeError('Argument 2 must be an instance of ParagonIE_Sodium_Core_Curve25519_Fe');
  53          }
  54          $this->yminusx = $yminusx;
  55          if ($xy2d === null) {
  56              $xy2d = new ParagonIE_Sodium_Core_Curve25519_Fe();
  57          }
  58          if (!($xy2d instanceof ParagonIE_Sodium_Core_Curve25519_Fe)) {
  59              throw new TypeError('Argument 3 must be an instance of ParagonIE_Sodium_Core_Curve25519_Fe');
  60          }
  61          $this->xy2d = $xy2d;
  62      }
  63  }