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Rollup of 5 pull requests - #63607
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Most `Ident`s are serialized as `InternedString`s the exceptions are: * Reexports * Attributes * Idents in macro definitions Using gensyms helped reexports emulate hygiene. However, the actual item wouldn't have a gensymmed name so would be usable cross-crate. So removing this case until we have proper cross-crate hygiene seems sensible. Codegen attributes (`inline`, `export_name`) are resolved by their `Symbol`. This meant that opaque macro-expanded codegen attributes could cause linker errors. This prevented making built-in derives hygienic.
Also make them generally more hygienic with name resolution.
For some reason type checking did this. Further it didn't consider hygiene.
We now store it in the `Span` of the expression or item.
The implementations were wrong and unused.
…hton Use libunwind from llvm-project submodule for musl targets This avoid downloading libunwind by using the scheme introduced in rust-lang#61544
…ves, r=petrochenkov
Opaque builtin derive macros
* Buiilt-in derives are now opaque macros
* This required limiting the visibility of some previously unexposed functions in `core`.
* This also required the change to `Ident` serialization.
* All gensyms are replaced with hygienic identifiers
* Use hygiene to avoid most other name-resolution issues with buiilt-in derives.
* As far as I know the only remaining case that breaks is an ADT that has the same name as one of its parameters. Fixing this completely seemed to be more effort than it's worth.
* Remove gensym in `Ident::decode`, which lead to linker errors due to `inline` being gensymmed.
* `Ident`now panics if incremental compilation tries to serialize it (it currently doesn't).
* `Ident` no longer uses `gensym` to emulate cross-crate hygiene. It only applied to reexports.
* `SyntaxContext` is no longer serializable.
* The long-term fix for this is to properly implement cross-crate hygiene, but this seemed to be acceptable for now.
* Move type/const parameter shadowing checks to `resolve`
* This was previously split between resolve and type checking. The type checking pass compared `InternedString`s, not Identifiers.
* Removed the `SyntaxContext` from `{ast, hir}::{InlineAsm, GlobalAsm}`
cc rust-lang#60869
r? @petrochenkovSuggest Rust 2018 on `<expr>.await` with no such field When type checking a field projection (`fn check_field`) to `<expr>.await` where `<expr>: τ` and `τ` is not a primitive type, suggest switching to Rust 2018. E.g. ``` error[E0609]: no field `await` on type `std::pin::Pin<&mut dyn std::future::Future<Output = ()>>` --> $DIR/suggest-switching-edition-on-await.rs:31:7 | LL | x.await; | ^^^^^ unknown field | = note: to `.await` a `Future`, switch to Rust 2018 = help: set `edition = "2018"` in `Cargo.toml` = note: for more on editions, read https://doc.rust-lang.org/edition-guide ``` Fixesrust-lang#63533 This PR also performs some preparatory cleanups in `fn check_field`; the last 2 commits are where the suggestion is introduced and tested respectively. r? @varkor
Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
… r=alexreg libcore: more cleanups using `#![feature(associated_type_bounds)]` Turns out this was indeed a bootstrapping issue from a test with `./x.py check` locally after rust-lang#63534 merged. Closesrust-lang#63393 r? @alexreg cc @iluuu1994 cc rust-lang#52662
Centril
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Aug 15, 2019
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@bors r+ p=5 rollup=never |
bors
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Aug 15, 2019
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📌 Commit 8f2decb has been approved by |
bors
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Aug 15, 2019
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Aug 15, 2019
Rollup of 5 pull requests Successful merges: - #63173 (Use libunwind from llvm-project submodule for musl targets) - #63462 (Opaque builtin derive macros) - #63539 (Suggest Rust 2018 on `<expr>.await` with no such field) - #63545 (Feature gate 'yield $expr?' pre-expansion) - #63584 (libcore: more cleanups using `#![feature(associated_type_bounds)]`) Failed merges: r? @ghost
rust-highfive
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Aug 15, 2019
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The job Click to expand the log.I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact |
bors
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Aug 15, 2019
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💔 Test failed - checks-azure |
rust-highfive
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Aug 15, 2019
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The job Click to expand the log.I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact |
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Successful merges:
<expr>.awaitwith no such field #63539 (Suggest Rust 2018 on<expr>.awaitwith no such field)#![feature(associated_type_bounds)]#63584 (libcore: more cleanups using#![feature(associated_type_bounds)])Failed merges:
r? @ghost