class-dump

class-dump is a command-line utility for examining the Objective-C segment of Mach-O files. It generates declarations for the classes, categories and protocols. This is the same information provided by using 'otool -ov', but presented as normal Objective-C declarations.

This is the unstable fork from https://github.com/nygard/class-dump.

The original version and information is available at:

http://stevenygard.com/projects/class-dump

Swift support

This version includes "Swift support" for class-dump.

Now, this tool can dump Objective-C headers even the Mach-O file uses Swift and Objective-C at the same time. Notice, only Objective-C headers can be dumped!

LAST, THIS IS AN EXPERIMENTAL VERSION.

Install

You can install class-dump via Homebrew.

brew install manicmaniac/tap/class-dump

Or you can build it manually.

xcodebuild build -project class-dump.xcodeproj -target class-dump -configuration Release
mv build/Release/class-dump /usr/local/bin/class-dump

Usage

class-dump 3.5-0.1.0 (64 bit)
Usage: class-dump [options] <mach-o-file>

  where options are:
        -a             show instance variable offsets
        -A             show implementation addresses
        --arch <arch>  choose a specific architecture from a universal binary (ppc, ppc64, i386, x86_64)
        -C <regex>     only display classes matching regular expression
        -f <str>       find string in method name
        -H             generate header files in current directory, or directory specified with -o
        -I             sort classes, categories, and protocols by inheritance (overrides -s)
        -o <dir>       output directory used for -H
        -r             recursively expand frameworks and fixed VM shared libraries
        -s             sort classes and categories by name
        -S             sort methods by name
        -t             suppress header in output, for testing
        --list-arches  list the arches in the file, then exit
        --sdk-ios      specify iOS SDK version (will look in /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS<version>.sdk
        --sdk-mac      specify Mac OS X version (will look in /Developer/SDKs/MacOSX<version>.sdk
        --sdk-root     specify the full SDK root path (or use --sdk-ios/--sdk-mac for a shortcut)

• class-dump AppKit:

  class-dump /System/Library/Frameworks/AppKit.framework

• class-dump UIKit:

  class-dump /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/System/Library/Frameworks/UIKit.framework

• class-dump UIKit and all the frameworks it uses:

  class-dump /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/System/Library/Frameworks/UIKit.framework -r --sdk-ios 4.3

• class-dump UIKit (and all the frameworks it uses) from developer tools that have been installed in /Dev42 instead of /Developer:

  class-dump /Dev42/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk/System/Library/Frameworks/UIKit.framework -r --sdk-root /Dev42/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk

Versioning rule

To distinguish this forked version from original one, I added version suffix after the original version string. This suffix itself follows semantic versioning.

For example, 3.5-0.1.0 means the original version is 3.5 and I added minor changes to it (0.1.0).

License

This file is part of class-dump, a utility for examining the Objective-C segment of Mach-O files. Copyright (C) 1997-2019 Steve Nygard.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.