mach_o: JavaScript parsing library

KS implementation details

License: MIT

References

This page hosts a formal specification of mach_o using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.

Usage

Runtime library

All parsing code for JavaScript generated by Kaitai Struct depends on the JavaScript runtime library. You have to install it before you can parse data.

The JavaScript runtime library is available at npm:

npm install kaitai-struct

Code

See the usage examples in the JavaScript notes.

Parse structure from an ArrayBuffer:

var arrayBuffer = ...;
var data = new MachO(new KaitaiStream(arrayBuffer));

After that, one can get various attributes from the structure by accessing fields or properties like:

data.magic // => get magic

JavaScript source code to parse mach_o

MachO.js

// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    define(['kaitai-struct/KaitaiStream', './Asn1Der'], factory);
  } else if (typeof module === 'object' && module.exports) {
    module.exports = factory(require('kaitai-struct/KaitaiStream'), require('./Asn1Der'));
  } else {
    root.MachO = factory(root.KaitaiStream, root.Asn1Der);
  }
}(typeof self !== 'undefined' ? self : this, function (KaitaiStream, Asn1Der) {
var MachO = (function() {
  MachO.MagicType = Object.freeze({
    FAT_LE: 3199925962,
    FAT_BE: 3405691582,
    MACHO_LE_X86: 3472551422,
    MACHO_LE_X64: 3489328638,
    MACHO_BE_X86: 4277009102,
    MACHO_BE_X64: 4277009103,

    3199925962: "FAT_LE",
    3405691582: "FAT_BE",
    3472551422: "MACHO_LE_X86",
    3489328638: "MACHO_LE_X64",
    4277009102: "MACHO_BE_X86",
    4277009103: "MACHO_BE_X64",
  });

  MachO.CpuType = Object.freeze({
    VAX: 1,
    ROMP: 2,
    NS32032: 4,
    NS32332: 5,
    I386: 7,
    MIPS: 8,
    NS32532: 9,
    HPPA: 11,
    ARM: 12,
    MC88000: 13,
    SPARC: 14,
    I860: 15,
    I860_LITTLE: 16,
    RS6000: 17,
    POWERPC: 18,
    ABI64: 16777216,
    X86_64: 16777223,
    ARM64: 16777228,
    POWERPC64: 16777234,
    ANY: 4294967295,

    1: "VAX",
    2: "ROMP",
    4: "NS32032",
    5: "NS32332",
    7: "I386",
    8: "MIPS",
    9: "NS32532",
    11: "HPPA",
    12: "ARM",
    13: "MC88000",
    14: "SPARC",
    15: "I860",
    16: "I860_LITTLE",
    17: "RS6000",
    18: "POWERPC",
    16777216: "ABI64",
    16777223: "X86_64",
    16777228: "ARM64",
    16777234: "POWERPC64",
    4294967295: "ANY",
  });

  MachO.FileType = Object.freeze({
    OBJECT: 1,
    EXECUTE: 2,
    FVMLIB: 3,
    CORE: 4,
    PRELOAD: 5,
    DYLIB: 6,
    DYLINKER: 7,
    BUNDLE: 8,
    DYLIB_STUB: 9,
    DSYM: 10,
    KEXT_BUNDLE: 11,

    1: "OBJECT",
    2: "EXECUTE",
    3: "FVMLIB",
    4: "CORE",
    5: "PRELOAD",
    6: "DYLIB",
    7: "DYLINKER",
    8: "BUNDLE",
    9: "DYLIB_STUB",
    10: "DSYM",
    11: "KEXT_BUNDLE",
  });

  MachO.LoadCommandType = Object.freeze({
    SEGMENT: 1,
    SYMTAB: 2,
    SYMSEG: 3,
    THREAD: 4,
    UNIX_THREAD: 5,
    LOAD_FVM_LIB: 6,
    ID_FVM_LIB: 7,
    IDENT: 8,
    FVM_FILE: 9,
    PREPAGE: 10,
    DYSYMTAB: 11,
    LOAD_DYLIB: 12,
    ID_DYLIB: 13,
    LOAD_DYLINKER: 14,
    ID_DYLINKER: 15,
    PREBOUND_DYLIB: 16,
    ROUTINES: 17,
    SUB_FRAMEWORK: 18,
    SUB_UMBRELLA: 19,
    SUB_CLIENT: 20,
    SUB_LIBRARY: 21,
    TWOLEVEL_HINTS: 22,
    PREBIND_CKSUM: 23,
    SEGMENT_64: 25,
    ROUTINES_64: 26,
    UUID: 27,
    CODE_SIGNATURE: 29,
    SEGMENT_SPLIT_INFO: 30,
    LAZY_LOAD_DYLIB: 32,
    ENCRYPTION_INFO: 33,
    DYLD_INFO: 34,
    VERSION_MIN_MACOSX: 36,
    VERSION_MIN_IPHONEOS: 37,
    FUNCTION_STARTS: 38,
    DYLD_ENVIRONMENT: 39,
    DATA_IN_CODE: 41,
    SOURCE_VERSION: 42,
    DYLIB_CODE_SIGN_DRS: 43,
    ENCRYPTION_INFO_64: 44,
    LINKER_OPTION: 45,
    LINKER_OPTIMIZATION_HINT: 46,
    VERSION_MIN_TVOS: 47,
    VERSION_MIN_WATCHOS: 48,
    BUILD_VERSION: 50,
    REQ_DYLD: 2147483648,
    LOAD_WEAK_DYLIB: 2147483672,
    RPATH: 2147483676,
    REEXPORT_DYLIB: 2147483679,
    DYLD_INFO_ONLY: 2147483682,
    LOAD_UPWARD_DYLIB: 2147483683,
    MAIN: 2147483688,

    1: "SEGMENT",
    2: "SYMTAB",
    3: "SYMSEG",
    4: "THREAD",
    5: "UNIX_THREAD",
    6: "LOAD_FVM_LIB",
    7: "ID_FVM_LIB",
    8: "IDENT",
    9: "FVM_FILE",
    10: "PREPAGE",
    11: "DYSYMTAB",
    12: "LOAD_DYLIB",
    13: "ID_DYLIB",
    14: "LOAD_DYLINKER",
    15: "ID_DYLINKER",
    16: "PREBOUND_DYLIB",
    17: "ROUTINES",
    18: "SUB_FRAMEWORK",
    19: "SUB_UMBRELLA",
    20: "SUB_CLIENT",
    21: "SUB_LIBRARY",
    22: "TWOLEVEL_HINTS",
    23: "PREBIND_CKSUM",
    25: "SEGMENT_64",
    26: "ROUTINES_64",
    27: "UUID",
    29: "CODE_SIGNATURE",
    30: "SEGMENT_SPLIT_INFO",
    32: "LAZY_LOAD_DYLIB",
    33: "ENCRYPTION_INFO",
    34: "DYLD_INFO",
    36: "VERSION_MIN_MACOSX",
    37: "VERSION_MIN_IPHONEOS",
    38: "FUNCTION_STARTS",
    39: "DYLD_ENVIRONMENT",
    41: "DATA_IN_CODE",
    42: "SOURCE_VERSION",
    43: "DYLIB_CODE_SIGN_DRS",
    44: "ENCRYPTION_INFO_64",
    45: "LINKER_OPTION",
    46: "LINKER_OPTIMIZATION_HINT",
    47: "VERSION_MIN_TVOS",
    48: "VERSION_MIN_WATCHOS",
    50: "BUILD_VERSION",
    2147483648: "REQ_DYLD",
    2147483672: "LOAD_WEAK_DYLIB",
    2147483676: "RPATH",
    2147483679: "REEXPORT_DYLIB",
    2147483682: "DYLD_INFO_ONLY",
    2147483683: "LOAD_UPWARD_DYLIB",
    2147483688: "MAIN",
  });

  function MachO(_io, _parent, _root) {
    this._io = _io;
    this._parent = _parent;
    this._root = _root || this;

    this._read();
  }
  MachO.prototype._read = function() {
    this.magic = this._io.readU4be();
    this.header = new MachHeader(this._io, this, this._root);
    this.loadCommands = [];
    for (var i = 0; i < this.header.ncmds; i++) {
      this.loadCommands.push(new LoadCommand(this._io, this, this._root));
    }
  }

  var RpathCommand = MachO.RpathCommand = (function() {
    function RpathCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    RpathCommand.prototype._read = function() {
      this.pathOffset = this._io.readU4le();
      this.path = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "utf-8");
    }

    return RpathCommand;
  })();

  var Uleb128 = MachO.Uleb128 = (function() {
    function Uleb128(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    Uleb128.prototype._read = function() {
      this.b1 = this._io.readU1();
      if ((this.b1 & 128) != 0) {
        this.b2 = this._io.readU1();
      }
      if ((this.b2 & 128) != 0) {
        this.b3 = this._io.readU1();
      }
      if ((this.b3 & 128) != 0) {
        this.b4 = this._io.readU1();
      }
      if ((this.b4 & 128) != 0) {
        this.b5 = this._io.readU1();
      }
      if ((this.b5 & 128) != 0) {
        this.b6 = this._io.readU1();
      }
      if ((this.b6 & 128) != 0) {
        this.b7 = this._io.readU1();
      }
      if ((this.b7 & 128) != 0) {
        this.b8 = this._io.readU1();
      }
      if ((this.b8 & 128) != 0) {
        this.b9 = this._io.readU1();
      }
      if ((this.b9 & 128) != 0) {
        this.b10 = this._io.readU1();
      }
    }
    Object.defineProperty(Uleb128.prototype, 'value', {
      get: function() {
        if (this._m_value !== undefined)
          return this._m_value;
        this._m_value = ((KaitaiStream.mod(this.b1, 128) << 0) + ((this.b1 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b2, 128) << 7) + ((this.b2 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b3, 128) << 14) + ((this.b3 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b4, 128) << 21) + ((this.b4 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b5, 128) << 28) + ((this.b5 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b6, 128) << 35) + ((this.b6 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b7, 128) << 42) + ((this.b7 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b8, 128) << 49) + ((this.b8 & 128) == 0 ? 0 : ((KaitaiStream.mod(this.b9, 128) << 56) + ((this.b8 & 128) == 0 ? 0 : (KaitaiStream.mod(this.b10, 128) << 63)))))))))))))))))));
        return this._m_value;
      }
    });

    return Uleb128;
  })();

  var SourceVersionCommand = MachO.SourceVersionCommand = (function() {
    function SourceVersionCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    SourceVersionCommand.prototype._read = function() {
      this.version = this._io.readU8le();
    }

    return SourceVersionCommand;
  })();

  var CsBlob = MachO.CsBlob = (function() {
    CsBlob.CsMagic = Object.freeze({
      BLOB_WRAPPER: 4208855809,
      REQUIREMENT: 4208856064,
      REQUIREMENTS: 4208856065,
      CODE_DIRECTORY: 4208856066,
      EMBEDDED_SIGNATURE: 4208856256,
      DETACHED_SIGNATURE: 4208856257,
      ENTITLEMENTS: 4208882033,
      DER_ENTITLEMENTS: 4208882034,

      4208855809: "BLOB_WRAPPER",
      4208856064: "REQUIREMENT",
      4208856065: "REQUIREMENTS",
      4208856066: "CODE_DIRECTORY",
      4208856256: "EMBEDDED_SIGNATURE",
      4208856257: "DETACHED_SIGNATURE",
      4208882033: "ENTITLEMENTS",
      4208882034: "DER_ENTITLEMENTS",
    });

    function CsBlob(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    CsBlob.prototype._read = function() {
      this.magic = this._io.readU4be();
      this.length = this._io.readU4be();
      switch (this.magic) {
      case MachO.CsBlob.CsMagic.REQUIREMENT:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new Requirement(_io__raw_body, this, this._root);
        break;
      case MachO.CsBlob.CsMagic.CODE_DIRECTORY:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new CodeDirectory(_io__raw_body, this, this._root);
        break;
      case MachO.CsBlob.CsMagic.REQUIREMENTS:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new Requirements(_io__raw_body, this, this._root);
        break;
      case MachO.CsBlob.CsMagic.BLOB_WRAPPER:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new BlobWrapper(_io__raw_body, this, this._root);
        break;
      case MachO.CsBlob.CsMagic.EMBEDDED_SIGNATURE:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SuperBlob(_io__raw_body, this, this._root);
        break;
      case MachO.CsBlob.CsMagic.ENTITLEMENTS:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new Entitlements(_io__raw_body, this, this._root);
        break;
      case MachO.CsBlob.CsMagic.DETACHED_SIGNATURE:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SuperBlob(_io__raw_body, this, this._root);
        break;
      case MachO.CsBlob.CsMagic.DER_ENTITLEMENTS:
        this._raw_body = this._io.readBytes((this.length - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new Asn1Der(_io__raw_body, this, null);
        break;
      default:
        this.body = this._io.readBytes((this.length - 8));
        break;
      }
    }

    var CodeDirectory = CsBlob.CodeDirectory = (function() {
      function CodeDirectory(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      CodeDirectory.prototype._read = function() {
        this.version = this._io.readU4be();
        this.flags = this._io.readU4be();
        this.hashOffset = this._io.readU4be();
        this.identOffset = this._io.readU4be();
        this.nSpecialSlots = this._io.readU4be();
        this.nCodeSlots = this._io.readU4be();
        this.codeLimit = this._io.readU4be();
        this.hashSize = this._io.readU1();
        this.hashType = this._io.readU1();
        this.spare1 = this._io.readU1();
        this.pageSize = this._io.readU1();
        this.spare2 = this._io.readU4be();
        if (this.version >= 131328) {
          this.scatterOffset = this._io.readU4be();
        }
        if (this.version >= 131584) {
          this.teamIdOffset = this._io.readU4be();
        }
      }
      Object.defineProperty(CodeDirectory.prototype, 'ident', {
        get: function() {
          if (this._m_ident !== undefined)
            return this._m_ident;
          var _pos = this._io.pos;
          this._io.seek((this.identOffset - 8));
          this._m_ident = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "utf-8");
          this._io.seek(_pos);
          return this._m_ident;
        }
      });
      Object.defineProperty(CodeDirectory.prototype, 'teamId', {
        get: function() {
          if (this._m_teamId !== undefined)
            return this._m_teamId;
          var _pos = this._io.pos;
          this._io.seek((this.teamIdOffset - 8));
          this._m_teamId = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "utf-8");
          this._io.seek(_pos);
          return this._m_teamId;
        }
      });
      Object.defineProperty(CodeDirectory.prototype, 'hashes', {
        get: function() {
          if (this._m_hashes !== undefined)
            return this._m_hashes;
          var _pos = this._io.pos;
          this._io.seek(((this.hashOffset - 8) - (this.hashSize * this.nSpecialSlots)));
          this._m_hashes = [];
          for (var i = 0; i < (this.nSpecialSlots + this.nCodeSlots); i++) {
            this._m_hashes.push(this._io.readBytes(this.hashSize));
          }
          this._io.seek(_pos);
          return this._m_hashes;
        }
      });

      return CodeDirectory;
    })();

    var Data = CsBlob.Data = (function() {
      function Data(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Data.prototype._read = function() {
        this.length = this._io.readU4be();
        this.value = this._io.readBytes(this.length);
        this.padding = this._io.readBytes((4 - (this.length & 3)));
      }

      return Data;
    })();

    var SuperBlob = CsBlob.SuperBlob = (function() {
      function SuperBlob(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      SuperBlob.prototype._read = function() {
        this.count = this._io.readU4be();
        this.blobs = [];
        for (var i = 0; i < this.count; i++) {
          this.blobs.push(new BlobIndex(this._io, this, this._root));
        }
      }

      return SuperBlob;
    })();

    var Expr = CsBlob.Expr = (function() {
      Expr.OpEnum = Object.freeze({
        FALSE: 0,
        TRUE: 1,
        IDENT: 2,
        APPLE_ANCHOR: 3,
        ANCHOR_HASH: 4,
        INFO_KEY_VALUE: 5,
        AND_OP: 6,
        OR_OP: 7,
        CD_HASH: 8,
        NOT_OP: 9,
        INFO_KEY_FIELD: 10,
        CERT_FIELD: 11,
        TRUSTED_CERT: 12,
        TRUSTED_CERTS: 13,
        CERT_GENERIC: 14,
        APPLE_GENERIC_ANCHOR: 15,
        ENTITLEMENT_FIELD: 16,

        0: "FALSE",
        1: "TRUE",
        2: "IDENT",
        3: "APPLE_ANCHOR",
        4: "ANCHOR_HASH",
        5: "INFO_KEY_VALUE",
        6: "AND_OP",
        7: "OR_OP",
        8: "CD_HASH",
        9: "NOT_OP",
        10: "INFO_KEY_FIELD",
        11: "CERT_FIELD",
        12: "TRUSTED_CERT",
        13: "TRUSTED_CERTS",
        14: "CERT_GENERIC",
        15: "APPLE_GENERIC_ANCHOR",
        16: "ENTITLEMENT_FIELD",
      });

      Expr.CertSlot = Object.freeze({
        LEFT_CERT: 0,
        ANCHOR_CERT: 4294967295,

        0: "LEFT_CERT",
        4294967295: "ANCHOR_CERT",
      });

      function Expr(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Expr.prototype._read = function() {
        this.op = this._io.readU4be();
        switch (this.op) {
        case MachO.CsBlob.Expr.OpEnum.IDENT:
          this.data = new IdentExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.OR_OP:
          this.data = new OrExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.INFO_KEY_VALUE:
          this.data = new Data(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.ANCHOR_HASH:
          this.data = new AnchorHashExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.INFO_KEY_FIELD:
          this.data = new InfoKeyFieldExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.NOT_OP:
          this.data = new Expr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.ENTITLEMENT_FIELD:
          this.data = new EntitlementFieldExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.TRUSTED_CERT:
          this.data = new CertSlotExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.AND_OP:
          this.data = new AndExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.CERT_GENERIC:
          this.data = new CertGenericExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.CERT_FIELD:
          this.data = new CertFieldExpr(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.CD_HASH:
          this.data = new Data(this._io, this, this._root);
          break;
        case MachO.CsBlob.Expr.OpEnum.APPLE_GENERIC_ANCHOR:
          this.data = new AppleGenericAnchorExpr(this._io, this, this._root);
          break;
        }
      }

      var InfoKeyFieldExpr = Expr.InfoKeyFieldExpr = (function() {
        function InfoKeyFieldExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        InfoKeyFieldExpr.prototype._read = function() {
          this.data = new Data(this._io, this, this._root);
          this.match = new Match(this._io, this, this._root);
        }

        return InfoKeyFieldExpr;
      })();

      var CertSlotExpr = Expr.CertSlotExpr = (function() {
        function CertSlotExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        CertSlotExpr.prototype._read = function() {
          this.value = this._io.readU4be();
        }

        return CertSlotExpr;
      })();

      var CertGenericExpr = Expr.CertGenericExpr = (function() {
        function CertGenericExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        CertGenericExpr.prototype._read = function() {
          this.certSlot = this._io.readU4be();
          this.data = new Data(this._io, this, this._root);
          this.match = new Match(this._io, this, this._root);
        }

        return CertGenericExpr;
      })();

      var IdentExpr = Expr.IdentExpr = (function() {
        function IdentExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        IdentExpr.prototype._read = function() {
          this.identifier = new Data(this._io, this, this._root);
        }

        return IdentExpr;
      })();

      var CertFieldExpr = Expr.CertFieldExpr = (function() {
        function CertFieldExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        CertFieldExpr.prototype._read = function() {
          this.certSlot = this._io.readU4be();
          this.data = new Data(this._io, this, this._root);
          this.match = new Match(this._io, this, this._root);
        }

        return CertFieldExpr;
      })();

      var AnchorHashExpr = Expr.AnchorHashExpr = (function() {
        function AnchorHashExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        AnchorHashExpr.prototype._read = function() {
          this.certSlot = this._io.readU4be();
          this.data = new Data(this._io, this, this._root);
        }

        return AnchorHashExpr;
      })();

      var AppleGenericAnchorExpr = Expr.AppleGenericAnchorExpr = (function() {
        function AppleGenericAnchorExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        AppleGenericAnchorExpr.prototype._read = function() {
        }
        Object.defineProperty(AppleGenericAnchorExpr.prototype, 'value', {
          get: function() {
            if (this._m_value !== undefined)
              return this._m_value;
            this._m_value = "anchor apple generic";
            return this._m_value;
          }
        });

        return AppleGenericAnchorExpr;
      })();

      var EntitlementFieldExpr = Expr.EntitlementFieldExpr = (function() {
        function EntitlementFieldExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        EntitlementFieldExpr.prototype._read = function() {
          this.data = new Data(this._io, this, this._root);
          this.match = new Match(this._io, this, this._root);
        }

        return EntitlementFieldExpr;
      })();

      var AndExpr = Expr.AndExpr = (function() {
        function AndExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        AndExpr.prototype._read = function() {
          this.left = new Expr(this._io, this, this._root);
          this.right = new Expr(this._io, this, this._root);
        }

        return AndExpr;
      })();

      var OrExpr = Expr.OrExpr = (function() {
        function OrExpr(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        OrExpr.prototype._read = function() {
          this.left = new Expr(this._io, this, this._root);
          this.right = new Expr(this._io, this, this._root);
        }

        return OrExpr;
      })();

      return Expr;
    })();

    var BlobIndex = CsBlob.BlobIndex = (function() {
      BlobIndex.CsslotType = Object.freeze({
        CODE_DIRECTORY: 0,
        INFO_SLOT: 1,
        REQUIREMENTS: 2,
        RESOURCE_DIR: 3,
        APPLICATION: 4,
        ENTITLEMENTS: 5,
        DER_ENTITLEMENTS: 7,
        ALTERNATE_CODE_DIRECTORIES: 4096,
        SIGNATURE_SLOT: 65536,

        0: "CODE_DIRECTORY",
        1: "INFO_SLOT",
        2: "REQUIREMENTS",
        3: "RESOURCE_DIR",
        4: "APPLICATION",
        5: "ENTITLEMENTS",
        7: "DER_ENTITLEMENTS",
        4096: "ALTERNATE_CODE_DIRECTORIES",
        65536: "SIGNATURE_SLOT",
      });

      function BlobIndex(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      BlobIndex.prototype._read = function() {
        this.type = this._io.readU4be();
        this.offset = this._io.readU4be();
      }
      Object.defineProperty(BlobIndex.prototype, 'blob', {
        get: function() {
          if (this._m_blob !== undefined)
            return this._m_blob;
          var io = this._parent._io;
          var _pos = io.pos;
          io.seek((this.offset - 8));
          this._raw__m_blob = io.readBytesFull();
          var _io__raw__m_blob = new KaitaiStream(this._raw__m_blob);
          this._m_blob = new CsBlob(_io__raw__m_blob, this, this._root);
          io.seek(_pos);
          return this._m_blob;
        }
      });

      return BlobIndex;
    })();

    var Match = CsBlob.Match = (function() {
      Match.Op = Object.freeze({
        EXISTS: 0,
        EQUAL: 1,
        CONTAINS: 2,
        BEGINS_WITH: 3,
        ENDS_WITH: 4,
        LESS_THAN: 5,
        GREATER_THAN: 6,
        LESS_EQUAL: 7,
        GREATER_EQUAL: 8,

        0: "EXISTS",
        1: "EQUAL",
        2: "CONTAINS",
        3: "BEGINS_WITH",
        4: "ENDS_WITH",
        5: "LESS_THAN",
        6: "GREATER_THAN",
        7: "LESS_EQUAL",
        8: "GREATER_EQUAL",
      });

      function Match(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Match.prototype._read = function() {
        this.matchOp = this._io.readU4be();
        if (this.matchOp != MachO.CsBlob.Match.Op.EXISTS) {
          this.data = new Data(this._io, this, this._root);
        }
      }

      return Match;
    })();

    var Requirement = CsBlob.Requirement = (function() {
      function Requirement(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Requirement.prototype._read = function() {
        this.kind = this._io.readU4be();
        this.expr = new Expr(this._io, this, this._root);
      }

      return Requirement;
    })();

    var Requirements = CsBlob.Requirements = (function() {
      function Requirements(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Requirements.prototype._read = function() {
        this.count = this._io.readU4be();
        this.items = [];
        for (var i = 0; i < this.count; i++) {
          this.items.push(new RequirementsBlobIndex(this._io, this, this._root));
        }
      }

      return Requirements;
    })();

    var BlobWrapper = CsBlob.BlobWrapper = (function() {
      function BlobWrapper(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      BlobWrapper.prototype._read = function() {
        this.data = this._io.readBytesFull();
      }

      return BlobWrapper;
    })();

    var Entitlements = CsBlob.Entitlements = (function() {
      function Entitlements(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Entitlements.prototype._read = function() {
        this.data = this._io.readBytesFull();
      }

      return Entitlements;
    })();

    var RequirementsBlobIndex = CsBlob.RequirementsBlobIndex = (function() {
      RequirementsBlobIndex.RequirementType = Object.freeze({
        HOST: 1,
        GUEST: 2,
        DESIGNATED: 3,
        LIBRARY: 4,

        1: "HOST",
        2: "GUEST",
        3: "DESIGNATED",
        4: "LIBRARY",
      });

      function RequirementsBlobIndex(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      RequirementsBlobIndex.prototype._read = function() {
        this.type = this._io.readU4be();
        this.offset = this._io.readU4be();
      }
      Object.defineProperty(RequirementsBlobIndex.prototype, 'value', {
        get: function() {
          if (this._m_value !== undefined)
            return this._m_value;
          var _pos = this._io.pos;
          this._io.seek((this.offset - 8));
          this._m_value = new CsBlob(this._io, this, this._root);
          this._io.seek(_pos);
          return this._m_value;
        }
      });

      return RequirementsBlobIndex;
    })();

    return CsBlob;
  })();

  var BuildVersionCommand = MachO.BuildVersionCommand = (function() {
    function BuildVersionCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    BuildVersionCommand.prototype._read = function() {
      this.platform = this._io.readU4le();
      this.minos = this._io.readU4le();
      this.sdk = this._io.readU4le();
      this.ntools = this._io.readU4le();
      this.tools = [];
      for (var i = 0; i < this.ntools; i++) {
        this.tools.push(new BuildToolVersion(this._io, this, this._root));
      }
    }

    var BuildToolVersion = BuildVersionCommand.BuildToolVersion = (function() {
      function BuildToolVersion(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      BuildToolVersion.prototype._read = function() {
        this.tool = this._io.readU4le();
        this.version = this._io.readU4le();
      }

      return BuildToolVersion;
    })();

    return BuildVersionCommand;
  })();

  var RoutinesCommand = MachO.RoutinesCommand = (function() {
    function RoutinesCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    RoutinesCommand.prototype._read = function() {
      this.initAddress = this._io.readU4le();
      this.initModule = this._io.readU4le();
      this.reserved = this._io.readBytes(24);
    }

    return RoutinesCommand;
  })();

  var MachoFlags = MachO.MachoFlags = (function() {
    function MachoFlags(_io, _parent, _root, value) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;
      this.value = value;

      this._read();
    }
    MachoFlags.prototype._read = function() {
    }

    /**
     * safe to divide up the sections into sub-sections via symbols for dead code stripping
     */
    Object.defineProperty(MachoFlags.prototype, 'subsectionsViaSymbols', {
      get: function() {
        if (this._m_subsectionsViaSymbols !== undefined)
          return this._m_subsectionsViaSymbols;
        this._m_subsectionsViaSymbols = (this.value & 8192) != 0;
        return this._m_subsectionsViaSymbols;
      }
    });
    Object.defineProperty(MachoFlags.prototype, 'deadStrippableDylib', {
      get: function() {
        if (this._m_deadStrippableDylib !== undefined)
          return this._m_deadStrippableDylib;
        this._m_deadStrippableDylib = (this.value & 4194304) != 0;
        return this._m_deadStrippableDylib;
      }
    });

    /**
     * the final linked image contains external weak symbols
     */
    Object.defineProperty(MachoFlags.prototype, 'weakDefines', {
      get: function() {
        if (this._m_weakDefines !== undefined)
          return this._m_weakDefines;
        this._m_weakDefines = (this.value & 32768) != 0;
        return this._m_weakDefines;
      }
    });

    /**
     * the file has its dynamic undefined references prebound.
     */
    Object.defineProperty(MachoFlags.prototype, 'prebound', {
      get: function() {
        if (this._m_prebound !== undefined)
          return this._m_prebound;
        this._m_prebound = (this.value & 16) != 0;
        return this._m_prebound;
      }
    });

    /**
     * indicates that this binary binds to all two-level namespace modules of its dependent libraries. only used when MH_PREBINDABLE and MH_TWOLEVEL are both set.
     */
    Object.defineProperty(MachoFlags.prototype, 'allModsBound', {
      get: function() {
        if (this._m_allModsBound !== undefined)
          return this._m_allModsBound;
        this._m_allModsBound = (this.value & 4096) != 0;
        return this._m_allModsBound;
      }
    });
    Object.defineProperty(MachoFlags.prototype, 'hasTlvDescriptors', {
      get: function() {
        if (this._m_hasTlvDescriptors !== undefined)
          return this._m_hasTlvDescriptors;
        this._m_hasTlvDescriptors = (this.value & 8388608) != 0;
        return this._m_hasTlvDescriptors;
      }
    });

    /**
     * the executable is forcing all images to use flat name space bindings
     */
    Object.defineProperty(MachoFlags.prototype, 'forceFlat', {
      get: function() {
        if (this._m_forceFlat !== undefined)
          return this._m_forceFlat;
        this._m_forceFlat = (this.value & 256) != 0;
        return this._m_forceFlat;
      }
    });

    /**
     * When this bit is set, the binary declares it is safe for use in processes with uid zero
     */
    Object.defineProperty(MachoFlags.prototype, 'rootSafe', {
      get: function() {
        if (this._m_rootSafe !== undefined)
          return this._m_rootSafe;
        this._m_rootSafe = (this.value & 262144) != 0;
        return this._m_rootSafe;
      }
    });

    /**
     * the object file has no undefined references
     */
    Object.defineProperty(MachoFlags.prototype, 'noUndefs', {
      get: function() {
        if (this._m_noUndefs !== undefined)
          return this._m_noUndefs;
        this._m_noUndefs = (this.value & 1) != 0;
        return this._m_noUndefs;
      }
    });

    /**
     * When this bit is set, the binary declares it is safe for use in processes when issetugid() is true
     */
    Object.defineProperty(MachoFlags.prototype, 'setuidSafe', {
      get: function() {
        if (this._m_setuidSafe !== undefined)
          return this._m_setuidSafe;
        this._m_setuidSafe = (this.value & 524288) != 0;
        return this._m_setuidSafe;
      }
    });
    Object.defineProperty(MachoFlags.prototype, 'noHeapExecution', {
      get: function() {
        if (this._m_noHeapExecution !== undefined)
          return this._m_noHeapExecution;
        this._m_noHeapExecution = (this.value & 16777216) != 0;
        return this._m_noHeapExecution;
      }
    });

    /**
     * When this bit is set on a dylib, the static linker does not need to examine dependent dylibs to see if any are re-exported
     */
    Object.defineProperty(MachoFlags.prototype, 'noReexportedDylibs', {
      get: function() {
        if (this._m_noReexportedDylibs !== undefined)
          return this._m_noReexportedDylibs;
        this._m_noReexportedDylibs = (this.value & 1048576) != 0;
        return this._m_noReexportedDylibs;
      }
    });

    /**
     * this umbrella guarantees no multiple defintions of symbols in its sub-images so the two-level namespace hints can always be used.
     */
    Object.defineProperty(MachoFlags.prototype, 'noMultiDefs', {
      get: function() {
        if (this._m_noMultiDefs !== undefined)
          return this._m_noMultiDefs;
        this._m_noMultiDefs = (this.value & 512) != 0;
        return this._m_noMultiDefs;
      }
    });
    Object.defineProperty(MachoFlags.prototype, 'appExtensionSafe', {
      get: function() {
        if (this._m_appExtensionSafe !== undefined)
          return this._m_appExtensionSafe;
        this._m_appExtensionSafe = (this.value & 33554432) != 0;
        return this._m_appExtensionSafe;
      }
    });

    /**
     * the binary is not prebound but can have its prebinding redone. only used when MH_PREBOUND is not set.
     */
    Object.defineProperty(MachoFlags.prototype, 'prebindable', {
      get: function() {
        if (this._m_prebindable !== undefined)
          return this._m_prebindable;
        this._m_prebindable = (this.value & 2048) != 0;
        return this._m_prebindable;
      }
    });

    /**
     * the object file is the output of an incremental link against a base file and can't be link edited again
     */
    Object.defineProperty(MachoFlags.prototype, 'incrLink', {
      get: function() {
        if (this._m_incrLink !== undefined)
          return this._m_incrLink;
        this._m_incrLink = (this.value & 2) != 0;
        return this._m_incrLink;
      }
    });

    /**
     * the object file's undefined references are bound by the dynamic linker when loaded.
     */
    Object.defineProperty(MachoFlags.prototype, 'bindAtLoad', {
      get: function() {
        if (this._m_bindAtLoad !== undefined)
          return this._m_bindAtLoad;
        this._m_bindAtLoad = (this.value & 8) != 0;
        return this._m_bindAtLoad;
      }
    });

    /**
     * the binary has been canonicalized via the unprebind operation
     */
    Object.defineProperty(MachoFlags.prototype, 'canonical', {
      get: function() {
        if (this._m_canonical !== undefined)
          return this._m_canonical;
        this._m_canonical = (this.value & 16384) != 0;
        return this._m_canonical;
      }
    });

    /**
     * the image is using two-level name space bindings
     */
    Object.defineProperty(MachoFlags.prototype, 'twoLevel', {
      get: function() {
        if (this._m_twoLevel !== undefined)
          return this._m_twoLevel;
        this._m_twoLevel = (this.value & 128) != 0;
        return this._m_twoLevel;
      }
    });

    /**
     * the file has its read-only and read-write segments split
     */
    Object.defineProperty(MachoFlags.prototype, 'splitSegs', {
      get: function() {
        if (this._m_splitSegs !== undefined)
          return this._m_splitSegs;
        this._m_splitSegs = (this.value & 32) != 0;
        return this._m_splitSegs;
      }
    });

    /**
     * the shared library init routine is to be run lazily via catching memory faults to its writeable segments (obsolete)
     */
    Object.defineProperty(MachoFlags.prototype, 'lazyInit', {
      get: function() {
        if (this._m_lazyInit !== undefined)
          return this._m_lazyInit;
        this._m_lazyInit = (this.value & 64) != 0;
        return this._m_lazyInit;
      }
    });

    /**
     * When this bit is set, all stacks in the task will be given stack execution privilege.  Only used in MH_EXECUTE filetypes.
     */
    Object.defineProperty(MachoFlags.prototype, 'allowStackExecution', {
      get: function() {
        if (this._m_allowStackExecution !== undefined)
          return this._m_allowStackExecution;
        this._m_allowStackExecution = (this.value & 131072) != 0;
        return this._m_allowStackExecution;
      }
    });

    /**
     * the final linked image uses weak symbols
     */
    Object.defineProperty(MachoFlags.prototype, 'bindsToWeak', {
      get: function() {
        if (this._m_bindsToWeak !== undefined)
          return this._m_bindsToWeak;
        this._m_bindsToWeak = (this.value & 65536) != 0;
        return this._m_bindsToWeak;
      }
    });

    /**
     * do not have dyld notify the prebinding agent about this executable
     */
    Object.defineProperty(MachoFlags.prototype, 'noFixPrebinding', {
      get: function() {
        if (this._m_noFixPrebinding !== undefined)
          return this._m_noFixPrebinding;
        this._m_noFixPrebinding = (this.value & 1024) != 0;
        return this._m_noFixPrebinding;
      }
    });

    /**
     * the object file is input for the dynamic linker and can't be staticly link edited again
     */
    Object.defineProperty(MachoFlags.prototype, 'dyldLink', {
      get: function() {
        if (this._m_dyldLink !== undefined)
          return this._m_dyldLink;
        this._m_dyldLink = (this.value & 4) != 0;
        return this._m_dyldLink;
      }
    });

    /**
     * When this bit is set, the OS will load the main executable at a random address. Only used in MH_EXECUTE filetypes.
     */
    Object.defineProperty(MachoFlags.prototype, 'pie', {
      get: function() {
        if (this._m_pie !== undefined)
          return this._m_pie;
        this._m_pie = (this.value & 2097152) != 0;
        return this._m_pie;
      }
    });

    return MachoFlags;
  })();

  var RoutinesCommand64 = MachO.RoutinesCommand64 = (function() {
    function RoutinesCommand64(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    RoutinesCommand64.prototype._read = function() {
      this.initAddress = this._io.readU8le();
      this.initModule = this._io.readU8le();
      this.reserved = this._io.readBytes(48);
    }

    return RoutinesCommand64;
  })();

  var LinkerOptionCommand = MachO.LinkerOptionCommand = (function() {
    function LinkerOptionCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    LinkerOptionCommand.prototype._read = function() {
      this.numStrings = this._io.readU4le();
      this.strings = [];
      for (var i = 0; i < this.numStrings; i++) {
        this.strings.push(KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "utf-8"));
      }
    }

    return LinkerOptionCommand;
  })();

  var SegmentCommand64 = MachO.SegmentCommand64 = (function() {
    function SegmentCommand64(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    SegmentCommand64.prototype._read = function() {
      this.segname = KaitaiStream.bytesToStr(KaitaiStream.bytesStripRight(this._io.readBytes(16), 0), "ascii");
      this.vmaddr = this._io.readU8le();
      this.vmsize = this._io.readU8le();
      this.fileoff = this._io.readU8le();
      this.filesize = this._io.readU8le();
      this.maxprot = new VmProt(this._io, this, this._root);
      this.initprot = new VmProt(this._io, this, this._root);
      this.nsects = this._io.readU4le();
      this.flags = this._io.readU4le();
      this.sections = [];
      for (var i = 0; i < this.nsects; i++) {
        this.sections.push(new Section64(this._io, this, this._root));
      }
    }

    var Section64 = SegmentCommand64.Section64 = (function() {
      function Section64(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Section64.prototype._read = function() {
        this.sectName = KaitaiStream.bytesToStr(KaitaiStream.bytesStripRight(this._io.readBytes(16), 0), "ascii");
        this.segName = KaitaiStream.bytesToStr(KaitaiStream.bytesStripRight(this._io.readBytes(16), 0), "ascii");
        this.addr = this._io.readU8le();
        this.size = this._io.readU8le();
        this.offset = this._io.readU4le();
        this.align = this._io.readU4le();
        this.reloff = this._io.readU4le();
        this.nreloc = this._io.readU4le();
        this.flags = this._io.readU4le();
        this.reserved1 = this._io.readU4le();
        this.reserved2 = this._io.readU4le();
        this.reserved3 = this._io.readU4le();
      }

      var CfStringList = Section64.CfStringList = (function() {
        function CfStringList(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        CfStringList.prototype._read = function() {
          this.items = [];
          var i = 0;
          while (!this._io.isEof()) {
            this.items.push(new CfString(this._io, this, this._root));
            i++;
          }
        }

        return CfStringList;
      })();

      var CfString = Section64.CfString = (function() {
        function CfString(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        CfString.prototype._read = function() {
          this.isa = this._io.readU8le();
          this.info = this._io.readU8le();
          this.data = this._io.readU8le();
          this.length = this._io.readU8le();
        }

        return CfString;
      })();

      var EhFrameItem = Section64.EhFrameItem = (function() {
        function EhFrameItem(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        EhFrameItem.prototype._read = function() {
          this.length = this._io.readU4le();
          if (this.length == 4294967295) {
            this.length64 = this._io.readU8le();
          }
          this.id = this._io.readU4le();
          if (this.length > 0) {
            switch (this.id) {
            case 0:
              this._raw_body = this._io.readBytes((this.length - 4));
              var _io__raw_body = new KaitaiStream(this._raw_body);
              this.body = new Cie(_io__raw_body, this, this._root);
              break;
            default:
              this.body = this._io.readBytes((this.length - 4));
              break;
            }
          }
        }

        var CharChain = EhFrameItem.CharChain = (function() {
          function CharChain(_io, _parent, _root) {
            this._io = _io;
            this._parent = _parent;
            this._root = _root || this;

            this._read();
          }
          CharChain.prototype._read = function() {
            this.chr = this._io.readU1();
            if (this.chr != 0) {
              this.next = new CharChain(this._io, this, this._root);
            }
          }

          return CharChain;
        })();

        var Cie = EhFrameItem.Cie = (function() {
          function Cie(_io, _parent, _root) {
            this._io = _io;
            this._parent = _parent;
            this._root = _root || this;

            this._read();
          }
          Cie.prototype._read = function() {
            this.version = this._io.readU1();
            this.augStr = new CharChain(this._io, this, this._root);
            this.codeAlignmentFactor = new Uleb128(this._io, this, this._root);
            this.dataAlignmentFactor = new Uleb128(this._io, this, this._root);
            this.returnAddressRegister = this._io.readU1();
            if (this.augStr.chr == 122) {
              this.augmentation = new AugmentationEntry(this._io, this, this._root);
            }
          }

          return Cie;
        })();

        var AugmentationEntry = EhFrameItem.AugmentationEntry = (function() {
          function AugmentationEntry(_io, _parent, _root) {
            this._io = _io;
            this._parent = _parent;
            this._root = _root || this;

            this._read();
          }
          AugmentationEntry.prototype._read = function() {
            this.length = new Uleb128(this._io, this, this._root);
            if (this._parent.augStr.next.chr == 82) {
              this.fdePointerEncoding = this._io.readU1();
            }
          }

          return AugmentationEntry;
        })();

        return EhFrameItem;
      })();

      var EhFrame = Section64.EhFrame = (function() {
        function EhFrame(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        EhFrame.prototype._read = function() {
          this.items = [];
          var i = 0;
          while (!this._io.isEof()) {
            this.items.push(new EhFrameItem(this._io, this, this._root));
            i++;
          }
        }

        return EhFrame;
      })();

      var PointerList = Section64.PointerList = (function() {
        function PointerList(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        PointerList.prototype._read = function() {
          this.items = [];
          var i = 0;
          while (!this._io.isEof()) {
            this.items.push(this._io.readU8le());
            i++;
          }
        }

        return PointerList;
      })();

      var StringList = Section64.StringList = (function() {
        function StringList(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        StringList.prototype._read = function() {
          this.strings = [];
          var i = 0;
          while (!this._io.isEof()) {
            this.strings.push(KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "ascii"));
            i++;
          }
        }

        return StringList;
      })();
      Object.defineProperty(Section64.prototype, 'data', {
        get: function() {
          if (this._m_data !== undefined)
            return this._m_data;
          var io = this._root._io;
          var _pos = io.pos;
          io.seek(this.offset);
          switch (this.sectName) {
          case "__objc_nlclslist":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_methname":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new StringList(_io__raw__m_data, this, this._root);
            break;
          case "__nl_symbol_ptr":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__la_symbol_ptr":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_selrefs":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__cstring":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new StringList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_classlist":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_protolist":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_imageinfo":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_methtype":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new StringList(_io__raw__m_data, this, this._root);
            break;
          case "__cfstring":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new CfStringList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_classrefs":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_protorefs":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__objc_classname":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new StringList(_io__raw__m_data, this, this._root);
            break;
          case "__got":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          case "__eh_frame":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new EhFrame(_io__raw__m_data, this, this._root);
            break;
          case "__objc_superrefs":
            this._raw__m_data = io.readBytes(this.size);
            var _io__raw__m_data = new KaitaiStream(this._raw__m_data);
            this._m_data = new PointerList(_io__raw__m_data, this, this._root);
            break;
          default:
            this._m_data = io.readBytes(this.size);
            break;
          }
          io.seek(_pos);
          return this._m_data;
        }
      });

      return Section64;
    })();

    return SegmentCommand64;
  })();

  var VmProt = MachO.VmProt = (function() {
    function VmProt(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    VmProt.prototype._read = function() {
      this.stripRead = this._io.readBitsIntBe(1) != 0;
      this.isMask = this._io.readBitsIntBe(1) != 0;
      this.reserved0 = this._io.readBitsIntBe(1) != 0;
      this.copy = this._io.readBitsIntBe(1) != 0;
      this.noChange = this._io.readBitsIntBe(1) != 0;
      this.execute = this._io.readBitsIntBe(1) != 0;
      this.write = this._io.readBitsIntBe(1) != 0;
      this.read = this._io.readBitsIntBe(1) != 0;
      this.reserved1 = this._io.readBitsIntBe(24);
    }

    /**
     * Special marker to support execute-only protection.
     */

    /**
     * Indicates to use value as a mask against the actual protection bits.
     */

    /**
     * Reserved (unused) bit.
     */

    /**
     * Used when write permission can not be obtained, to mark the entry as COW.
     */

    /**
     * Used only by memory_object_lock_request to indicate no change to page locks.
     */

    /**
     * Execute permission.
     */

    /**
     * Write permission.
     */

    /**
     * Read permission.
     */

    /**
     * Reserved (unused) bits.
     */

    return VmProt;
  })();

  var DysymtabCommand = MachO.DysymtabCommand = (function() {
    function DysymtabCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    DysymtabCommand.prototype._read = function() {
      this.iLocalSym = this._io.readU4le();
      this.nLocalSym = this._io.readU4le();
      this.iExtDefSym = this._io.readU4le();
      this.nExtDefSym = this._io.readU4le();
      this.iUndefSym = this._io.readU4le();
      this.nUndefSym = this._io.readU4le();
      this.tocOff = this._io.readU4le();
      this.nToc = this._io.readU4le();
      this.modTabOff = this._io.readU4le();
      this.nModTab = this._io.readU4le();
      this.extRefSymOff = this._io.readU4le();
      this.nExtRefSyms = this._io.readU4le();
      this.indirectSymOff = this._io.readU4le();
      this.nIndirectSyms = this._io.readU4le();
      this.extRelOff = this._io.readU4le();
      this.nExtRel = this._io.readU4le();
      this.locRelOff = this._io.readU4le();
      this.nLocRel = this._io.readU4le();
    }
    Object.defineProperty(DysymtabCommand.prototype, 'indirectSymbols', {
      get: function() {
        if (this._m_indirectSymbols !== undefined)
          return this._m_indirectSymbols;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.indirectSymOff);
        this._m_indirectSymbols = [];
        for (var i = 0; i < this.nIndirectSyms; i++) {
          this._m_indirectSymbols.push(io.readU4le());
        }
        io.seek(_pos);
        return this._m_indirectSymbols;
      }
    });

    return DysymtabCommand;
  })();

  var MachHeader = MachO.MachHeader = (function() {
    function MachHeader(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    MachHeader.prototype._read = function() {
      this.cputype = this._io.readU4le();
      this.cpusubtype = this._io.readU4le();
      this.filetype = this._io.readU4le();
      this.ncmds = this._io.readU4le();
      this.sizeofcmds = this._io.readU4le();
      this.flags = this._io.readU4le();
      if ( ((this._root.magic == MachO.MagicType.MACHO_BE_X64) || (this._root.magic == MachO.MagicType.MACHO_LE_X64)) ) {
        this.reserved = this._io.readU4le();
      }
    }
    Object.defineProperty(MachHeader.prototype, 'flagsObj', {
      get: function() {
        if (this._m_flagsObj !== undefined)
          return this._m_flagsObj;
        this._m_flagsObj = new MachoFlags(this._io, this, this._root, this.flags);
        return this._m_flagsObj;
      }
    });

    return MachHeader;
  })();

  var LinkeditDataCommand = MachO.LinkeditDataCommand = (function() {
    function LinkeditDataCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    LinkeditDataCommand.prototype._read = function() {
      this.dataOff = this._io.readU4le();
      this.dataSize = this._io.readU4le();
    }

    return LinkeditDataCommand;
  })();

  var SubCommand = MachO.SubCommand = (function() {
    function SubCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    SubCommand.prototype._read = function() {
      this.name = new LcStr(this._io, this, this._root);
    }

    return SubCommand;
  })();

  var TwolevelHintsCommand = MachO.TwolevelHintsCommand = (function() {
    function TwolevelHintsCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    TwolevelHintsCommand.prototype._read = function() {
      this.offset = this._io.readU4le();
      this.numHints = this._io.readU4le();
    }

    return TwolevelHintsCommand;
  })();

  var Version = MachO.Version = (function() {
    function Version(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    Version.prototype._read = function() {
      this.p1 = this._io.readU1();
      this.minor = this._io.readU1();
      this.major = this._io.readU1();
      this.release = this._io.readU1();
    }

    return Version;
  })();

  var EncryptionInfoCommand = MachO.EncryptionInfoCommand = (function() {
    function EncryptionInfoCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    EncryptionInfoCommand.prototype._read = function() {
      this.cryptoff = this._io.readU4le();
      this.cryptsize = this._io.readU4le();
      this.cryptid = this._io.readU4le();
      if ( ((this._root.magic == MachO.MagicType.MACHO_BE_X64) || (this._root.magic == MachO.MagicType.MACHO_LE_X64)) ) {
        this.pad = this._io.readU4le();
      }
    }

    return EncryptionInfoCommand;
  })();

  var CodeSignatureCommand = MachO.CodeSignatureCommand = (function() {
    function CodeSignatureCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    CodeSignatureCommand.prototype._read = function() {
      this.dataOff = this._io.readU4le();
      this.dataSize = this._io.readU4le();
    }
    Object.defineProperty(CodeSignatureCommand.prototype, 'codeSignature', {
      get: function() {
        if (this._m_codeSignature !== undefined)
          return this._m_codeSignature;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.dataOff);
        this._raw__m_codeSignature = io.readBytes(this.dataSize);
        var _io__raw__m_codeSignature = new KaitaiStream(this._raw__m_codeSignature);
        this._m_codeSignature = new CsBlob(_io__raw__m_codeSignature, this, this._root);
        io.seek(_pos);
        return this._m_codeSignature;
      }
    });

    return CodeSignatureCommand;
  })();

  var DyldInfoCommand = MachO.DyldInfoCommand = (function() {
    DyldInfoCommand.BindOpcode = Object.freeze({
      DONE: 0,
      SET_DYLIB_ORDINAL_IMMEDIATE: 16,
      SET_DYLIB_ORDINAL_ULEB: 32,
      SET_DYLIB_SPECIAL_IMMEDIATE: 48,
      SET_SYMBOL_TRAILING_FLAGS_IMMEDIATE: 64,
      SET_TYPE_IMMEDIATE: 80,
      SET_APPEND_SLEB: 96,
      SET_SEGMENT_AND_OFFSET_ULEB: 112,
      ADD_ADDRESS_ULEB: 128,
      DO_BIND: 144,
      DO_BIND_ADD_ADDRESS_ULEB: 160,
      DO_BIND_ADD_ADDRESS_IMMEDIATE_SCALED: 176,
      DO_BIND_ULEB_TIMES_SKIPPING_ULEB: 192,

      0: "DONE",
      16: "SET_DYLIB_ORDINAL_IMMEDIATE",
      32: "SET_DYLIB_ORDINAL_ULEB",
      48: "SET_DYLIB_SPECIAL_IMMEDIATE",
      64: "SET_SYMBOL_TRAILING_FLAGS_IMMEDIATE",
      80: "SET_TYPE_IMMEDIATE",
      96: "SET_APPEND_SLEB",
      112: "SET_SEGMENT_AND_OFFSET_ULEB",
      128: "ADD_ADDRESS_ULEB",
      144: "DO_BIND",
      160: "DO_BIND_ADD_ADDRESS_ULEB",
      176: "DO_BIND_ADD_ADDRESS_IMMEDIATE_SCALED",
      192: "DO_BIND_ULEB_TIMES_SKIPPING_ULEB",
    });

    function DyldInfoCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    DyldInfoCommand.prototype._read = function() {
      this.rebaseOff = this._io.readU4le();
      this.rebaseSize = this._io.readU4le();
      this.bindOff = this._io.readU4le();
      this.bindSize = this._io.readU4le();
      this.weakBindOff = this._io.readU4le();
      this.weakBindSize = this._io.readU4le();
      this.lazyBindOff = this._io.readU4le();
      this.lazyBindSize = this._io.readU4le();
      this.exportOff = this._io.readU4le();
      this.exportSize = this._io.readU4le();
    }

    var BindItem = DyldInfoCommand.BindItem = (function() {
      function BindItem(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      BindItem.prototype._read = function() {
        this.opcodeAndImmediate = this._io.readU1();
        if ( ((this.opcode == MachO.DyldInfoCommand.BindOpcode.SET_DYLIB_ORDINAL_ULEB) || (this.opcode == MachO.DyldInfoCommand.BindOpcode.SET_APPEND_SLEB) || (this.opcode == MachO.DyldInfoCommand.BindOpcode.SET_SEGMENT_AND_OFFSET_ULEB) || (this.opcode == MachO.DyldInfoCommand.BindOpcode.ADD_ADDRESS_ULEB) || (this.opcode == MachO.DyldInfoCommand.BindOpcode.DO_BIND_ADD_ADDRESS_ULEB) || (this.opcode == MachO.DyldInfoCommand.BindOpcode.DO_BIND_ULEB_TIMES_SKIPPING_ULEB)) ) {
          this.uleb = new Uleb128(this._io, this, this._root);
        }
        if (this.opcode == MachO.DyldInfoCommand.BindOpcode.DO_BIND_ULEB_TIMES_SKIPPING_ULEB) {
          this.skip = new Uleb128(this._io, this, this._root);
        }
        if (this.opcode == MachO.DyldInfoCommand.BindOpcode.SET_SYMBOL_TRAILING_FLAGS_IMMEDIATE) {
          this.symbol = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "ascii");
        }
      }
      Object.defineProperty(BindItem.prototype, 'opcode', {
        get: function() {
          if (this._m_opcode !== undefined)
            return this._m_opcode;
          this._m_opcode = (this.opcodeAndImmediate & 240);
          return this._m_opcode;
        }
      });
      Object.defineProperty(BindItem.prototype, 'immediate', {
        get: function() {
          if (this._m_immediate !== undefined)
            return this._m_immediate;
          this._m_immediate = (this.opcodeAndImmediate & 15);
          return this._m_immediate;
        }
      });

      return BindItem;
    })();

    var RebaseData = DyldInfoCommand.RebaseData = (function() {
      RebaseData.Opcode = Object.freeze({
        DONE: 0,
        SET_TYPE_IMMEDIATE: 16,
        SET_SEGMENT_AND_OFFSET_ULEB: 32,
        ADD_ADDRESS_ULEB: 48,
        ADD_ADDRESS_IMMEDIATE_SCALED: 64,
        DO_REBASE_IMMEDIATE_TIMES: 80,
        DO_REBASE_ULEB_TIMES: 96,
        DO_REBASE_ADD_ADDRESS_ULEB: 112,
        DO_REBASE_ULEB_TIMES_SKIPPING_ULEB: 128,

        0: "DONE",
        16: "SET_TYPE_IMMEDIATE",
        32: "SET_SEGMENT_AND_OFFSET_ULEB",
        48: "ADD_ADDRESS_ULEB",
        64: "ADD_ADDRESS_IMMEDIATE_SCALED",
        80: "DO_REBASE_IMMEDIATE_TIMES",
        96: "DO_REBASE_ULEB_TIMES",
        112: "DO_REBASE_ADD_ADDRESS_ULEB",
        128: "DO_REBASE_ULEB_TIMES_SKIPPING_ULEB",
      });

      function RebaseData(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      RebaseData.prototype._read = function() {
        this.items = [];
        var i = 0;
        do {
          var _ = new RebaseItem(this._io, this, this._root);
          this.items.push(_);
          i++;
        } while (!(_.opcode == MachO.DyldInfoCommand.RebaseData.Opcode.DONE));
      }

      var RebaseItem = RebaseData.RebaseItem = (function() {
        function RebaseItem(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        RebaseItem.prototype._read = function() {
          this.opcodeAndImmediate = this._io.readU1();
          if ( ((this.opcode == MachO.DyldInfoCommand.RebaseData.Opcode.SET_SEGMENT_AND_OFFSET_ULEB) || (this.opcode == MachO.DyldInfoCommand.RebaseData.Opcode.ADD_ADDRESS_ULEB) || (this.opcode == MachO.DyldInfoCommand.RebaseData.Opcode.DO_REBASE_ULEB_TIMES) || (this.opcode == MachO.DyldInfoCommand.RebaseData.Opcode.DO_REBASE_ADD_ADDRESS_ULEB) || (this.opcode == MachO.DyldInfoCommand.RebaseData.Opcode.DO_REBASE_ULEB_TIMES_SKIPPING_ULEB)) ) {
            this.uleb = new Uleb128(this._io, this, this._root);
          }
          if (this.opcode == MachO.DyldInfoCommand.RebaseData.Opcode.DO_REBASE_ULEB_TIMES_SKIPPING_ULEB) {
            this.skip = new Uleb128(this._io, this, this._root);
          }
        }
        Object.defineProperty(RebaseItem.prototype, 'opcode', {
          get: function() {
            if (this._m_opcode !== undefined)
              return this._m_opcode;
            this._m_opcode = (this.opcodeAndImmediate & 240);
            return this._m_opcode;
          }
        });
        Object.defineProperty(RebaseItem.prototype, 'immediate', {
          get: function() {
            if (this._m_immediate !== undefined)
              return this._m_immediate;
            this._m_immediate = (this.opcodeAndImmediate & 15);
            return this._m_immediate;
          }
        });

        return RebaseItem;
      })();

      return RebaseData;
    })();

    var ExportNode = DyldInfoCommand.ExportNode = (function() {
      function ExportNode(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      ExportNode.prototype._read = function() {
        this.terminalSize = new Uleb128(this._io, this, this._root);
        this.childrenCount = this._io.readU1();
        this.children = [];
        for (var i = 0; i < this.childrenCount; i++) {
          this.children.push(new Child(this._io, this, this._root));
        }
        this.terminal = this._io.readBytes(this.terminalSize.value);
      }

      var Child = ExportNode.Child = (function() {
        function Child(_io, _parent, _root) {
          this._io = _io;
          this._parent = _parent;
          this._root = _root || this;

          this._read();
        }
        Child.prototype._read = function() {
          this.name = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "ascii");
          this.nodeOffset = new Uleb128(this._io, this, this._root);
        }
        Object.defineProperty(Child.prototype, 'value', {
          get: function() {
            if (this._m_value !== undefined)
              return this._m_value;
            var _pos = this._io.pos;
            this._io.seek(this.nodeOffset.value);
            this._m_value = new ExportNode(this._io, this, this._root);
            this._io.seek(_pos);
            return this._m_value;
          }
        });

        return Child;
      })();

      return ExportNode;
    })();

    var BindData = DyldInfoCommand.BindData = (function() {
      function BindData(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      BindData.prototype._read = function() {
        this.items = [];
        var i = 0;
        do {
          var _ = new BindItem(this._io, this, this._root);
          this.items.push(_);
          i++;
        } while (!(_.opcode == MachO.DyldInfoCommand.BindOpcode.DONE));
      }

      return BindData;
    })();

    var LazyBindData = DyldInfoCommand.LazyBindData = (function() {
      function LazyBindData(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      LazyBindData.prototype._read = function() {
        this.items = [];
        var i = 0;
        while (!this._io.isEof()) {
          this.items.push(new BindItem(this._io, this, this._root));
          i++;
        }
      }

      return LazyBindData;
    })();
    Object.defineProperty(DyldInfoCommand.prototype, 'rebase', {
      get: function() {
        if (this._m_rebase !== undefined)
          return this._m_rebase;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.rebaseOff);
        this._raw__m_rebase = io.readBytes(this.rebaseSize);
        var _io__raw__m_rebase = new KaitaiStream(this._raw__m_rebase);
        this._m_rebase = new RebaseData(_io__raw__m_rebase, this, this._root);
        io.seek(_pos);
        return this._m_rebase;
      }
    });
    Object.defineProperty(DyldInfoCommand.prototype, 'bind', {
      get: function() {
        if (this._m_bind !== undefined)
          return this._m_bind;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.bindOff);
        this._raw__m_bind = io.readBytes(this.bindSize);
        var _io__raw__m_bind = new KaitaiStream(this._raw__m_bind);
        this._m_bind = new BindData(_io__raw__m_bind, this, this._root);
        io.seek(_pos);
        return this._m_bind;
      }
    });
    Object.defineProperty(DyldInfoCommand.prototype, 'lazyBind', {
      get: function() {
        if (this._m_lazyBind !== undefined)
          return this._m_lazyBind;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.lazyBindOff);
        this._raw__m_lazyBind = io.readBytes(this.lazyBindSize);
        var _io__raw__m_lazyBind = new KaitaiStream(this._raw__m_lazyBind);
        this._m_lazyBind = new LazyBindData(_io__raw__m_lazyBind, this, this._root);
        io.seek(_pos);
        return this._m_lazyBind;
      }
    });
    Object.defineProperty(DyldInfoCommand.prototype, 'exports', {
      get: function() {
        if (this._m_exports !== undefined)
          return this._m_exports;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.exportOff);
        this._raw__m_exports = io.readBytes(this.exportSize);
        var _io__raw__m_exports = new KaitaiStream(this._raw__m_exports);
        this._m_exports = new ExportNode(_io__raw__m_exports, this, this._root);
        io.seek(_pos);
        return this._m_exports;
      }
    });

    return DyldInfoCommand;
  })();

  var DylinkerCommand = MachO.DylinkerCommand = (function() {
    function DylinkerCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    DylinkerCommand.prototype._read = function() {
      this.name = new LcStr(this._io, this, this._root);
    }

    return DylinkerCommand;
  })();

  var DylibCommand = MachO.DylibCommand = (function() {
    function DylibCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    DylibCommand.prototype._read = function() {
      this.nameOffset = this._io.readU4le();
      this.timestamp = this._io.readU4le();
      this.currentVersion = this._io.readU4le();
      this.compatibilityVersion = this._io.readU4le();
      this.name = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "utf-8");
    }

    return DylibCommand;
  })();

  var SegmentCommand = MachO.SegmentCommand = (function() {
    function SegmentCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    SegmentCommand.prototype._read = function() {
      this.segname = KaitaiStream.bytesToStr(KaitaiStream.bytesStripRight(this._io.readBytes(16), 0), "ascii");
      this.vmaddr = this._io.readU4le();
      this.vmsize = this._io.readU4le();
      this.fileoff = this._io.readU4le();
      this.filesize = this._io.readU4le();
      this.maxprot = new VmProt(this._io, this, this._root);
      this.initprot = new VmProt(this._io, this, this._root);
      this.nsects = this._io.readU4le();
      this.flags = this._io.readU4le();
      this.sections = [];
      for (var i = 0; i < this.nsects; i++) {
        this.sections.push(new Section(this._io, this, this._root));
      }
    }

    var Section = SegmentCommand.Section = (function() {
      function Section(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Section.prototype._read = function() {
        this.sectName = KaitaiStream.bytesToStr(KaitaiStream.bytesStripRight(this._io.readBytes(16), 0), "ascii");
        this.segName = KaitaiStream.bytesToStr(KaitaiStream.bytesStripRight(this._io.readBytes(16), 0), "ascii");
        this.addr = this._io.readU4le();
        this.size = this._io.readU4le();
        this.offset = this._io.readU4le();
        this.align = this._io.readU4le();
        this.reloff = this._io.readU4le();
        this.nreloc = this._io.readU4le();
        this.flags = this._io.readU4le();
        this.reserved1 = this._io.readU4le();
        this.reserved2 = this._io.readU4le();
      }
      Object.defineProperty(Section.prototype, 'data', {
        get: function() {
          if (this._m_data !== undefined)
            return this._m_data;
          var io = this._root._io;
          var _pos = io.pos;
          io.seek(this.offset);
          this._m_data = io.readBytes(this.size);
          io.seek(_pos);
          return this._m_data;
        }
      });

      return Section;
    })();

    return SegmentCommand;
  })();

  var LcStr = MachO.LcStr = (function() {
    function LcStr(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    LcStr.prototype._read = function() {
      this.length = this._io.readU4le();
      this.value = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "UTF-8");
    }

    return LcStr;
  })();

  var LoadCommand = MachO.LoadCommand = (function() {
    function LoadCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    LoadCommand.prototype._read = function() {
      this.type = this._io.readU4le();
      this.size = this._io.readU4le();
      switch (this.type) {
      case MachO.LoadCommandType.ID_DYLINKER:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylinkerCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.REEXPORT_DYLIB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylibCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.BUILD_VERSION:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new BuildVersionCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SOURCE_VERSION:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SourceVersionCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.FUNCTION_STARTS:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new LinkeditDataCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.RPATH:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new RpathCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SUB_FRAMEWORK:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SubCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.ROUTINES:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new RoutinesCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SUB_LIBRARY:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SubCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.DYLD_INFO_ONLY:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DyldInfoCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.DYLD_ENVIRONMENT:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylinkerCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.LOAD_DYLINKER:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylinkerCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SEGMENT_SPLIT_INFO:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new LinkeditDataCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.MAIN:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new EntryPointCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.LOAD_DYLIB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylibCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.ENCRYPTION_INFO:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new EncryptionInfoCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.DYSYMTAB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DysymtabCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.TWOLEVEL_HINTS:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new TwolevelHintsCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.ENCRYPTION_INFO_64:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new EncryptionInfoCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.LINKER_OPTION:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new LinkerOptionCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.DYLD_INFO:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DyldInfoCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.VERSION_MIN_TVOS:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new VersionMinCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.LOAD_UPWARD_DYLIB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylibCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SEGMENT_64:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SegmentCommand64(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SEGMENT:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SegmentCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SUB_UMBRELLA:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SubCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.VERSION_MIN_WATCHOS:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new VersionMinCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.ROUTINES_64:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new RoutinesCommand64(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.ID_DYLIB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylibCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SUB_CLIENT:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SubCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.DYLIB_CODE_SIGN_DRS:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new LinkeditDataCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.SYMTAB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new SymtabCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.LINKER_OPTIMIZATION_HINT:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new LinkeditDataCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.DATA_IN_CODE:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new LinkeditDataCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.CODE_SIGNATURE:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new CodeSignatureCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.VERSION_MIN_IPHONEOS:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new VersionMinCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.LOAD_WEAK_DYLIB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylibCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.LAZY_LOAD_DYLIB:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new DylibCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.UUID:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new UuidCommand(_io__raw_body, this, this._root);
        break;
      case MachO.LoadCommandType.VERSION_MIN_MACOSX:
        this._raw_body = this._io.readBytes((this.size - 8));
        var _io__raw_body = new KaitaiStream(this._raw_body);
        this.body = new VersionMinCommand(_io__raw_body, this, this._root);
        break;
      default:
        this.body = this._io.readBytes((this.size - 8));
        break;
      }
    }

    return LoadCommand;
  })();

  var UuidCommand = MachO.UuidCommand = (function() {
    function UuidCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    UuidCommand.prototype._read = function() {
      this.uuid = this._io.readBytes(16);
    }

    return UuidCommand;
  })();

  var SymtabCommand = MachO.SymtabCommand = (function() {
    function SymtabCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    SymtabCommand.prototype._read = function() {
      this.symOff = this._io.readU4le();
      this.nSyms = this._io.readU4le();
      this.strOff = this._io.readU4le();
      this.strSize = this._io.readU4le();
    }

    var StrTable = SymtabCommand.StrTable = (function() {
      function StrTable(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      StrTable.prototype._read = function() {
        this.unknown = this._io.readU4le();
        this.items = [];
        var i = 0;
        do {
          var _ = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, false), "utf-8");
          this.items.push(_);
          i++;
        } while (!(_ == ""));
      }

      return StrTable;
    })();

    var Nlist64 = SymtabCommand.Nlist64 = (function() {
      function Nlist64(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Nlist64.prototype._read = function() {
        this.un = this._io.readU4le();
        this.type = this._io.readU1();
        this.sect = this._io.readU1();
        this.desc = this._io.readU2le();
        this.value = this._io.readU8le();
      }
      Object.defineProperty(Nlist64.prototype, 'name', {
        get: function() {
          if (this._m_name !== undefined)
            return this._m_name;
          if (this.un != 0) {
            var _pos = this._io.pos;
            this._io.seek((this._parent.strOff + this.un));
            this._m_name = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "utf-8");
            this._io.seek(_pos);
          }
          return this._m_name;
        }
      });

      return Nlist64;
    })();

    var Nlist = SymtabCommand.Nlist = (function() {
      function Nlist(_io, _parent, _root) {
        this._io = _io;
        this._parent = _parent;
        this._root = _root || this;

        this._read();
      }
      Nlist.prototype._read = function() {
        this.un = this._io.readU4le();
        this.type = this._io.readU1();
        this.sect = this._io.readU1();
        this.desc = this._io.readU2le();
        this.value = this._io.readU4le();
      }
      Object.defineProperty(Nlist.prototype, 'name', {
        get: function() {
          if (this._m_name !== undefined)
            return this._m_name;
          if (this.un != 0) {
            var _pos = this._io.pos;
            this._io.seek((this._parent.strOff + this.un));
            this._m_name = KaitaiStream.bytesToStr(this._io.readBytesTerm(0, false, true, true), "utf-8");
            this._io.seek(_pos);
          }
          return this._m_name;
        }
      });

      return Nlist;
    })();
    Object.defineProperty(SymtabCommand.prototype, 'symbols', {
      get: function() {
        if (this._m_symbols !== undefined)
          return this._m_symbols;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.symOff);
        this._m_symbols = [];
        for (var i = 0; i < this.nSyms; i++) {
          switch (this._root.magic) {
          case MachO.MagicType.MACHO_LE_X64:
            this._m_symbols.push(new Nlist64(io, this, this._root));
            break;
          case MachO.MagicType.MACHO_BE_X64:
            this._m_symbols.push(new Nlist64(io, this, this._root));
            break;
          case MachO.MagicType.MACHO_LE_X86:
            this._m_symbols.push(new Nlist(io, this, this._root));
            break;
          case MachO.MagicType.MACHO_BE_X86:
            this._m_symbols.push(new Nlist(io, this, this._root));
            break;
          }
        }
        io.seek(_pos);
        return this._m_symbols;
      }
    });
    Object.defineProperty(SymtabCommand.prototype, 'strs', {
      get: function() {
        if (this._m_strs !== undefined)
          return this._m_strs;
        var io = this._root._io;
        var _pos = io.pos;
        io.seek(this.strOff);
        this._raw__m_strs = io.readBytes(this.strSize);
        var _io__raw__m_strs = new KaitaiStream(this._raw__m_strs);
        this._m_strs = new StrTable(_io__raw__m_strs, this, this._root);
        io.seek(_pos);
        return this._m_strs;
      }
    });

    return SymtabCommand;
  })();

  var VersionMinCommand = MachO.VersionMinCommand = (function() {
    function VersionMinCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    VersionMinCommand.prototype._read = function() {
      this.version = new Version(this._io, this, this._root);
      this.sdk = new Version(this._io, this, this._root);
    }

    return VersionMinCommand;
  })();

  var EntryPointCommand = MachO.EntryPointCommand = (function() {
    function EntryPointCommand(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    EntryPointCommand.prototype._read = function() {
      this.entryOff = this._io.readU8le();
      this.stackSize = this._io.readU8le();
    }

    return EntryPointCommand;
  })();

  return MachO;
})();
return MachO;
}));