b33f3b23c9
`Module.Union.getLayout` now additionally returns a `padding` field which tells how many bytes are between the final field end offset and the ending offset of the union. This is used by the LLVM backend to explicitly insert padding. LLVM backend: lowering of unions now inserts additional padding so that LLVM's internals will agree on the ABI size to match what ABI size zig wants unions to be. This is an alternative to calling LLVMABISizeOfType and LLVMABIAlignmentOfType which end up crashing when recursive struct definitions come into play. We no longer ever call these two functions and the bindings are deleted to avoid future footgun firings. LLVM backend: lowering of unions now represents untagged unions consistently. Before it was tripping an assertion. LLVM backend: switch cases call inttoptr on the case items and condition if necessary. Prevents tripping an LLVM assertion. After this commit, we are no longer tripping over any LLVM assertions.
A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
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- Chapter 0 - Getting Started | ZigLearn.org
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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.