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| author | bors <bors@rust-lang.org> | 2020-09-26 20:57:31 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2020-09-26 20:57:31 +0000 |
| commit | 623fb90b5a1f324e0ec44085116bf858cef19a00 (patch) | |
| tree | 0c05ab1775fed4ee4dc141fd443a6d0d1c952bed /library/std/src/sys/unix/process/process_fuchsia.rs | |
| parent | e37c99fa1ca2341d652a1b1859ea9aa2ae993e1e (diff) | |
| parent | b9653568a78ff3936ce78a1c65b6c83ff53702a4 (diff) | |
| download | rust-623fb90b5a1f324e0ec44085116bf858cef19a00.tar.gz rust-623fb90b5a1f324e0ec44085116bf858cef19a00.zip | |
Auto merge of #76897 - Aaron1011:feature/min-proc-macro-metadata, r=petrochenkov
Encode less metadata for proc-macro crates Currently, we serialize the same crate metadata for proc-macro crates as we do for normal crates. This is quite wasteful - almost none of this metadata is ever used, and much of it can't even be deserialized (if it contains a foreign `CrateNum`). This PR changes metadata encoding to skip encoding the majority of crate metadata for proc-macro crates. Most of the `Lazy<[T]>` fields are left completetly empty, while the non-lazy fields are left as-is. Additionally, proc-macros now have a def span that does not include their body. This was done for normal functions in #75465, but was missed for proc-macros. As a result of this PR, we should only ever encode local `CrateNum`s when encoding proc-macro crates. I've added a specialized serialization impl for `CrateNum` to assert this.
Diffstat (limited to 'library/std/src/sys/unix/process/process_fuchsia.rs')
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