RetVal/objc-runtime

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1831 stars · 513 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A debuggable build of the Objective-C runtime (version 906.2), the low-level library that powers Objective-C message dispatch, classes, and method resolution. It lets developers step through and study the runtime source instead of treating it as a black box.

Use cases

• debug Objective-C runtime internals like method dispatch and message sending
• study how the objc runtime implements classes, categories, and swizzling
• build a modified or instrumented Objective-C runtime for research
• step through objc_msgSend and runtime initialization in a debugger
• learn low-level Objective-C internals on Apple platforms

When to choose

• you need to debug or instrument the Objective-C runtime itself
• you're researching runtime internals, swizzling, or method resolution
• you want a readable, buildable copy of the objc runtime source

When to avoid

• you just need the stock runtime that ships with Apple's SDKs
• you're building a Swift-only project with no Objective-C runtime interaction
• you need a production-supported runtime with vendor support

Facets

library · maturity maintenance

interpreter developer-tools developer-tools programming-languages cpp objective-c objc-runtime debuggable apple-platforms low-level macos ios

Member repositories

For agents

markdown · JSON · MCP: product_card(name="RetVal/objc-runtime")