Why executable files is separated in a bundle of an app from Xcode 16 ?
Generated on 8/7/2024
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In Xcode 16, executable files are separated in a bundle of an app due to the introduction of explicitly built modules. This change brings several benefits:
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Improved Parallelism: Explicitly built modules allow for more parallelism during the build process. This means that different parts of the build can proceed simultaneously without waiting for modules to be implicitly built, leading to faster builds.
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Better Diagnostics: With explicitly built modules, the build system is fully aware of the module graph. This awareness allows for more informed scheduling choices and better diagnostics, making it easier to identify and resolve build issues.
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Faster Debugging: The debugger can now share binary modules with the build, which results in faster debugging. This avoids the need for the debugger to build its own version of the modules, reducing long pauses when first printing variables.
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Predictable and Reliable Builds: Explicitly built modules turn implicit steps into explicit build steps, making the build process more predictable and reliable. This also helps in optimizing the build process by clearly showing where time is being spent.
For more details, you can refer to the session Demystify explicitly built modules (04:58).
Relevant Sessions
- What’s new in Xcode 16 (06:26)
- Demystify explicitly built modules (03:57)
- What’s new in Swift (14:34)
Platforms State of the Union 5-Minute Recap
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What’s new in Xcode 16
Discover the latest productivity and performance improvements in Xcode 16. Learn about enhancements to code completion, diagnostics, and Xcode Previews. Find out more about updates in builds and explore improvements in debugging and Instruments.
What’s new in Swift
Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.
Demystify explicitly built modules
Explore how builds are changing in Xcode 16 with explicitly built modules. Discover how modules are used to build your code, how explicitly built modules improve transparency in compilation tasks, and how you can optimize your build by sharing modules across targets.
What’s new in App Intents
Learn about improvements and all-new features with App Intents, and discover how this framework can help you expose your app’s functionality to Siri, Spotlight, Shortcuts, and more. We’ll show you how to make your entities more meaningful to the platform with the Transferable API, File Representations, new IntentFile APIs, and Spotlight Indexing, opening up powerful functionality in Siri and the Shortcuts app. Empower your intents to take people deep into your app with URL Representable Entities. Explore new techniques to model your entities and intents with new APIs for error handling and union values.