c8fb36b36c
Introduced a new AIR instruction: `tag_name`. Reasons to do this instead of lowering it in Sema to a switch, function call, array lookup, or if-else tower: * Sema is a bottleneck; do less work in Sema whenever possible. * If any optimization passes run, and the operand to becomes comptime-known, then it could change to have a comptime result value instead of lowering to a function or array or something which would then have to be garbage-collected. * Backends may want to choose to use a function and a switch branch, or they may want to use a different strategy. Codegen for `@tagName` is implemented for the LLVM backend but not any others yet. Introduced some new `Type` tags: * `const_slice_u8_sentinel_0` * `manyptr_const_u8_sentinel_0` The motivation for this was to make typeof() on the tag_name AIR instruction non-allocating. A bunch more enum tests are passing now.
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.