56cfa8f22f
When instantiating a generic function, there is a period of time where the function is inserted into monomorphed_funcs map, but is not yet initialized. Despite semantic analysis being single-threaded, generic function instantiation can happen recursively, meaning that the hash and equality functions for monomorphed_funcs entries are potentially invoked for an uninitialized function. This problem was mitigated by pre-setting the hash field on the newly allocated function, however it did not solve the problem for hash collisions in which case the equality function would be invoked. That it was solved for hash() but not eql() explains why the problem was difficult to observe. I tested this patch by temporarily sabotaging the hash and making it always return 0. This fix is centered on adding a new field to Module.Fn which is the one checked by eql() and is populated pre-initialization. closes #12643
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.