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The toolchain embeds the assumption that `clang` and `llvm-ar` are adjacent, which may not be true on all host platforms. Moreover, in #1842 and #1843, we test if Homebrow LLVM is in `PATH` by checking that `llvm-ar` is adjacent to `clang` and if it isn't, we `fail()` the build, even if `llvm-ar` *is* in `PATH`. Instead, actually check `PATH` with `repository_ctx.which`. This however necessitates the assumption that `llvm-ar` and other LLVM binutils are adjacent, and subsequently that `clang` and `ld.lld` are adjacent. It appears that we don't seem to always be using these tools, but we should avoid embedding wrong assumptions regardless. Update docs to reflect this change.
Docs
This directory contains current, accepted documentation underpinning Carbon. These documents cover all aspects of Carbon ranging from the project down to detailed designs for specific language features.
If you're trying to learn more about Carbon, we recommend starting at
/README.md.
Design
Carbon language's design and rationale are documented in the
design/ directory. This documentation is intended to
support the following audiences:
- People who wish to determine whether Carbon would be the right choice for a project compared to other existing languages.
- People working on the evolution of the Carbon language who wish to understand the rationale and motivation for existing design decisions.
- People working on a specification or implementation of the Carbon language who need a detailed understanding of the intended design.
- People writing Carbon code who wish to understand why the language rules are the way they are.
This is in contrast to proposals, which document the individual decisions that led to this design (along with other changes to the Carbon project), including the rationale and alternatives considered.
Project
The project/ directory contains project-related
documentation for Carbon, including:
- goals, and the principles and roadmap derived from those goals,
- how the project works, and
- how to contribute.
Guides
The guides/ directory contains to-be-written end-user
documentation for developers writing programs in Carbon.
Spec
The spec/ directory contains the to-be-written formal
specification of the Carbon language. This is for implementers of compilers or
other tooling. This is intended to complement the interactive
language explorer tool.