diff options
| -rw-r--r-- | compiler/rustc_middle/src/hooks/mod.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/hooks/mod.rs b/compiler/rustc_middle/src/hooks/mod.rs index 12aeae17725..572751d9511 100644 --- a/compiler/rustc_middle/src/hooks/mod.rs +++ b/compiler/rustc_middle/src/hooks/mod.rs @@ -1,3 +1,8 @@ +//! "Hooks" provide a way for `tcx` functionality to be provided by some downstream crate without +//! everything in rustc having to depend on that crate. This is somewhat similar to queries, but +//! queries come with a lot of machinery for caching and incremental compilation, whereas hooks are +//! just plain function pointers without any of the query magic. + use crate::mir; use crate::query::TyCtxtAt; use crate::ty::{Ty, TyCtxt}; |