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* Add tagName to Value which behaves like @tagName. * Add hashUncoerced to Value as an alternative to hash when we want to produce the same hash for value that can coerce to each other. * Hash owner_decl instead of module_fn in Sema.instantiateGenericCall since Module.Decl.Index is not affected by ASLR like *Module.Fn was, and also because GenericCallAdapter.eql was already doing this. * Use Value.hashUncoerced in Sema.instantiateGenericCall because GenericCallAdapter.eql uses Value.eqlAdvanced to compare args, which ignores coersions. * Add revealed missing cases to Value.eqlAdvanced. Without these changes, we were breaking the hash contract for monomorphed_funcs, and were generating different hashes for values that compared equal. This resulted in a 0.2% chance when compiling self-hosted of producing a different output, which depended on fingerprint collisions of hashes that were affected by ASLR. Normally, the different hashes would have resulted in equal checks being skipped, but in the case of a fingerprint collision, the truth would be revealed and the compiler's behavior would diverge.
A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
Resources
- Introduction
- Download & Documentation
- Chapter 0 - Getting Started | ZigLearn.org
- Community
- Contributing
- Code of Conduct
- Frequently Asked Questions
- Community Projects
Installation
- download a pre-built binary
- install from a package manager
- build from source
- bootstrap zig for any target
License
The ultimate goal of the Zig project is to serve users. As a first-order effect, this means users of the compiler, helping programmers to write better software. Even more important, however, are the end-users.
Zig is intended to be used to help end-users accomplish their goals. Zig should be used to empower end-users, never to exploit them financially, or to limit their freedom to interact with hardware or software in any way.
However, such problems are best solved with social norms, not with software licenses. Any attempt to complicate the software license of Zig would risk compromising the value Zig provides.
Therefore, Zig is available under the MIT (Expat) License, and comes with a humble request: use it to make software better serve the needs of end-users.
This project redistributes code from other projects, some of which have other licenses besides MIT. Such licenses are generally similar to the MIT license for practical purposes. See the subdirectories and files inside lib/ for more details.