Specification

The rules of the language: what a program means, what the toolchain must refuse, and what it reports. A second implementation can be built from them.

1. Lexical structure
2. Grammar
3. Types and values
4. Modules and packages
5. 5. Interfaces and conformance
6. 6. Errors
7. Statements
8. Expressions
9. Patterns
10. Concurrency
11. Metaprogramming
12. The standard library contract
13. ABI and embedding
14. The command line
15. Projects
16. Diagnostics
17. Appendix A — Diagnostic catalogue