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* AstGen: Move `refToIndex` and `indexToRef` to Zir * ZIR: the switch_block_*_* instruction tags are collapsed into one switch_block tag which uses 4 bits for flags, and reduces the scalar_cases_len field from 32 to 28 bits. This freed up more ZIR tags, 2 of which are now used for `switch_cond` and `switch_cond_ref` for producing the switch condition value. For example, for union values it returns the corresponding enum value. * switching with multiple cases and ranges is not yet supported because I want to change the ZIR encoding to store index pointers into the extra array rather than storing prong indexes. This will avoid O(N^2) iteration over prongs. * AstGen now adds a `switch_cond` on the operand and then passes the result of that to the `switch_block` instruction. * Sema: partially implement `switch_capture_*` instructions. * Sema: `unionToTag` notices if the enum type has only one possible value.
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.