OCRunner

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OCRunner is a Coding & Development tool that executes Objective-C code as a script. It features an abstract syntax tree (AST) interpreter and functions as an iOS hotfix SDK.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Skill level

Technical

About

What is OCRunner?

OCRunner is an open-source tool designed for executing Objective-C code as a script, leveraging an Abstract Syntax Tree (AST) interpreter. It serves as an iOS hotfix SDK, enabling dynamic code patching and execution for applications. Key capabilities include generating binary patch files to increase security, reduce patch size, and optimize startup time. OCRunner supports complete Objective-C syntax, with some limitations regarding pre-compilation and certain C language features. It offers various interaction modes, including interactive, file monitoring, and folder monitoring, allowing real-time code execution and updates on iOS devices. The tool also provides performance testing comparisons against other hotfix libraries like JSPatch and Mango, highlighting its efficiency in patch loading speed.

Best used for

Ideal for iOS developers who need to apply hotfixes to their applications, dynamically update code without app store submissions, and debug Objective-C code in real-time on devices. Especially valuable for maintaining app stability and quickly addressing issues post-release.

Common actions

execute code

patch applications

debug code

update applications

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Capabilities

Key features

Execute Objective-C code
AST interpreter
iOS hotfix SDK
Generate binary patch files
Dynamic code patching
Real-time code execution

Target Audience

developer

Integrations

Not yet documented

Pricing & Plans

Open Source

Free

FAQs

What are the main differences between OCRunner and other hotfix libraries like JSPatch?

OCRunner uses binary patch files, which enhances security, reduces patch size, and optimizes startup time. While its recursive function performance might be lower than JSPatch's, OCRunner boasts significantly faster patch loading speeds, especially with larger patch sizes, and offers complete Objective-C syntax support.

What Objective-C syntax features are not supported by OCRunner?

OCRunner does not support pre-compilation, partial syntax, static or inline function declarations, C array declarations (e.g., type a[], type a[2]), or the '->' operation symbol. It also has known issues with pointer and multiplication sign identification conflicts.

How can I use OCRunner to fix an Objective-C method?

To fix a method, you can reimplement it within your patch. OCRunner allows you to call the original method by adding 'ORG' before its name (e.g., [self ORGtestObjectPropertyTest]). This enables you to modify specific behaviors without rewriting the entire class.

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