d9a429a1eb
Suggest 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 ``` Fixes https://github.com/rust-lang/rust/issues/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 |
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| assembly | ||
| auxiliary | ||
| codegen | ||
| codegen-units | ||
| compile-fail | ||
| debuginfo | ||
| incremental | ||
| mir-opt | ||
| pretty | ||
| run-fail | ||
| run-make | ||
| run-make-fulldeps | ||
| run-pass-valgrind | ||
| rustdoc | ||
| rustdoc-js | ||
| rustdoc-js-std | ||
| rustdoc-ui | ||
| rustfix | ||
| ui | ||
| ui-fulldeps | ||
| COMPILER_TESTS.md | ||