mirror
/
rustc-dev-guide
mirror of https://github.com/rust-lang/rustc-dev-guide.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Use `provide_both` link instead of `provide(_extern)`

This commit is contained in:
Yuki Okushi 2020-11-02 22:52:28 +09:00 committed by Who? Me?!
parent 17c77b296e
commit 3de0132a0d
1 changed files with 3 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/query.md
View File

@ -155,13 +155,11 @@ providers**. Almost all **extern providers** wind up going through the
[`rustc_metadata` crate][rustc_metadata], which loads the information [`rustc_metadata` crate][rustc_metadata], which loads the information
from the crate metadata. But in some cases there are crates that from the crate metadata. But in some cases there are crates that
provide queries for *both* local and external crates, in which case provide queries for *both* local and external crates, in which case
they define both a [`provide`][ext_provide] and a they define both a `provide` and a `provide_extern` function, through
[`provide_extern`][ext_provide_extern] function that `rustc_driver` [`provide_both`][ext_provide_both], that `rustc_driver` can invoke.
can invoke.
[rustc_metadata]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_metadata/index.html [rustc_metadata]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_metadata/index.html
[ext_provide]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_codegen_llvm/attributes/fn.provide.html [ext_provide_both]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_codegen_llvm/attributes/fn.provide_both.html
[ext_provide_extern]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_codegen_llvm/attributes/fn.provide_extern.html
### Adding a new kind of query ### Adding a new kind of query