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add doc comment to rustc_cfg::RustcCfgConfig

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This commit is contained in:
David Barsky 2023-09-07 15:30:11 -04:00
parent fad3823a20
commit 912b22fa07
1 changed files with 8 additions and 0 deletions
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8
crates/project-model/src/rustc_cfg.rs
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@ -7,6 +7,14 @@ use rustc_hash::FxHashMap;
use crate::{cfg_flag::CfgFlag, utf8_stdout, ManifestPath, Sysroot};
/// Determines how `rustc --print cfg` is discovered and invoked.
///
/// There options are supported:
/// - [`RustcCfgConfig::Cargo`], which relies on `cargo rustc --print cfg`
/// and `RUSTC_BOOTSTRAP`.
/// - [`RustcCfgConfig::Explicit`], which uses an explicit path to the `rustc`
/// binary in the sysroot.
/// - [`RustcCfgConfig::Discover`], which uses [`toolchain::rustc`].
pub(crate) enum RustcCfgConfig<'a> {
Cargo(&'a ManifestPath),
Explicit(&'a Sysroot),