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Chandler Carruth
437be71f1f
Four regions had `end` patterns that could fail to match, so `return var;`, a `fn` with no parameter list, and an unterminated `"` each swallowed the rest of the file; 77 of 1696 testdata files lost their highlighting partway through. Operators were wrapped in `\b`, which only holds next to a word character, so `a + b` highlighted nothing. And the keywords had drifted about two years behind the lexer. Identifiers are now classified by naming convention plus a call-site lookahead, the way the Rust grammar does it, so nothing carries between lines. Regions survive only for strings and embedded C++, where a terminator reliably turns up, and raw strings spell out hash levels 0 through 2, so `\n` is an escape in `"..."` and plain text in `#"..."#`. Trailing comments, character literals, raw identifiers, `$0`, `0o` octal, arbitrary integer widths and six missing keywords are covered now, `destructor` is gone, and `i32` reads as a type rather than as a keyword. Highlighting stays forgiving rather than diagnostic: anything after `//` is a comment and odd numeric spellings still read as numbers. Pointing out mistakes is the toolchain's job, and lenient rules hold steady while you are still typing. Every keyword and symbol in `token_kind.def` is covered, and unscoped tokens across examples and the toolchain drop from 39% to 21%. Note that I haven't tried to read and reason about every minute change here as there are just too many. But I'm working on a follow-up PR that adds testing that should be significantly easier te review. Assisted-by: Claude Code
Carbon Language
This extension provides support for the Carbon Language.
This extension is currently experimental, and being developed alongside Carbon.
Quickstart
- Download and install a
carbonrelease.- By default, the extension will look for
carbonunder./bazel-bin. This is for developers actively working on Carbon and running VS Code inside a carbon-lang clone.
- By default, the extension will look for
- Install the Carbon Language extension.
- Configure the installed path to
carbon.
Configuration
The configuration is under carbon.*. At present, the only configuration is the
path to the carbon binary. This looks like:
"carbon.carbonPath": "/path/to/carbon"
Communication
See Carbon's
collaboration systems.
We're most active on Discord and have a
#editor-integrations channel. We'll also respond to questions on
GitHub Discussions.
Documentation
Carbon currently only has project-level documentation. See the GitHub repository.