The main problem was that the loop body was treated as an expression that was one of the peer result values of a loop, when in reality the loop body is noreturn and only the `break` operands are the result values of loops. This was solved by introducing an override that prevents rvalue() from emitting a store to result location instruction for loop bodies. An orthogonal change also included in this commit is switching `elem_val` index expressions to using `coerced_ty` and doing the coercion to `usize` inside `Sema`, resulting in smaller ZIR (since the cast becomes implied). I also changed the break operand expression to use `reachableExpr`, introducing a new compile error for double break. This makes a few more behavior tests pass for `while` and `for` loops.
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.