anchor.diff:      sha256 = "0y1d6yi09ac0xlf63qrzxsi7dqf10wha3na633qzqjnpjcga97ck";
     };
   
  +  jsonpointer = buildFromGitHub {
  +    version = 2;
  +    owner = "go-openapi";
  +    repo = "jsonpointer";
  +    rev = "779f45308c19820f1a69e9a4cd965f496e0da10f";
  +    date = "2017-01-02";
  +    sha256 = "1kdgq87bns9xzvyyybcdk3hj09l8ic8s758dxldj91jjlbd2cc2x";
  +    propagatedBuildInputs = [
  +      swag
  +    ];
  +  };
  +
  +  jsonreference = buildFromGitHub {
  +    version = 2;
  +    owner = "go-openapi";
  +    repo = "jsonreference";
  +    rev = "36d33bfe519efae5632669801b180bf1a245da3b";
  +    date = "2016-11-05";
  +    sha256 = "0xqaz9kwlwj205ma9z7dm3j5ad2cl2cs0mvs3xqw3mvd6p0dmg7h";
  +    propagatedBuildInputs = [
  +      jsonpointer
  +      purell
  +    ];
  +  };
  +
     jsonx = buildFromGitHub {
       version = 2;
       owner = "jefferai";
  
positive.code:     date = "2017-04-19";
    };
  
    gojsonpointer = buildFromGitHub {
      version = 2;
      rev = "6fe8760cad3569743d51ddbb243b26f8456742dc";
  
negative.code:     sha256 = "0f3lc7yszyl3yv9rq7bsyda2yfp56xydvh834qrpplf998973yii";
    };
  
    easyjson = buildFromGitHub {
      version = 2;
      owner = "mailru";
      repo = "easyjson";
      rev = "9e74fe5423dca819cf8fd940d9a5d5307ac7aa10";
      date = "2017-04-24";
      sha256 = "198qkxr8m9g82bd7bg2f1pjarn8d0s50fm55505kb2r7a7dbwyzd";
      excludedPackages = "benchmark";
    };
  
    ed25519 = buildFromGitHub {
      version = 2;
      owner = "agl";
  