Rollup of 6 pull requests #65869
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Rollup of 6 pull requests #65869
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Co-Authored-By: Mazdak Farrokhzad <twingoow@gmail.com>
This is leftover from a restructuring of lint registration for drivers; it should now happen via the register_lints field on Config rather than this function.
This was originally only needed for validation, which is never run on non-const `fn`s. The new promotion pass wants to use it, however.
This is a relic from earlier attempts at dataflow-based const validation that attempted to do promotion at the same time. rust-lang#63812 takes a different approach: `IsNotPromotable` is no longer a `Qualif` and is computed lazily instead of eagerly. As a result, there's no need for an eager `TempPromotionResolver`, and we can use the only implementer of `QualifResolver` directly instead of through a trait.
When detecting a possible `=` -> `:` typo in a `let` binding, suggest assigning instead of setting the type.
Co-Authored-By: varkor <github@varkor.com>
Use heuristics to suggest assignment When detecting a possible `=` -> `:` typo in a `let` binding, suggest assigning instead of setting the type. Partially address rust-lang#57828.
…low-fundamental-local, r=nikomatsakis Coherence should allow fundamental types to impl traits when they are local After rust-lang#64414, `impl<T> Remote for Box<T> { }` is disallowed, but it is also disallowed in liballoc, where `Box` is a local type! Enabling `#![feature(re_rebalance_coherence)]` in `liballoc` results in: ``` error[E0210]: type parameter `F` must be used as the type parameter for some local type (e.g., `MyStruct<F>`) --> src\liballoc\boxed.rs:1098:1 | 1098 | impl<F: ?Sized + Future + Unpin> Future for Box<F> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type parameter `F` must be used as the type parameter for some local type ``` This PR relaxes `uncover_fundamental_ty` to skip local fundamental types. I didn't add a test since `liballoc` already fails to compile, but I can add one if needed. r? @nikomatsakis cc rust-lang#63599
…nsion, r=davidtwco Don't ICE for completely unexpandable `impl Trait` types Save the resolution of these types (to themselves) to the typeck tables so that they will eventually reach E0720. closes rust-lang#65561
…omatsakis Remove lint callback from driver This is leftover from a restructuring of lint registration for drivers; it should now happen via the register_lints field on Config rather than this function. This is not used by anyone to my knowledge (including the compiler itself); it was introduced in an abandoned refactor in rust-lang#65193.
…r=eddyb Clean up `check_consts` now that new promotion pass is implemented `check_consts::resolver` contained a layer of abstraction (`QualifResolver`) to allow the existing, eager style of qualif propagation to work with either a dataflow results cursor or by applying the transfer function directly (if dataflow was not needed e.g. for promotion). However, rust-lang#63812 uses a different, lazy paradigm for checking promotability, which makes this unnecessary. This PR cleans up `check_consts::validation` to use `FlowSensitiveResolver` directly, instead of through the now obselete `QualifResolver` API. Also, this contains a few commits (the first four) that address some FIXMEs in rust-lang#63812 regarding code duplication. They could be split out, but I think they will be relatively noncontroversial? Notably, `validation::Mode` is renamed to `ConstKind` and used in `promote_consts` to denote what kind of item we are in. This is best reviewed commit-by-commit and is low priority. r? @eddyb
… r=varkor Add long error explaination for E0666 In the spirit of the month of spooks, here's a long explanation for E0666 for rust-lang#61137.
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@bors r+ p=6 rollup=never |
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📌 Commit b5b4f9b has been approved by |
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Oct 27, 2019
Rollup of 6 pull requests Successful merges: - #65566 (Use heuristics to suggest assignment) - #65738 (Coherence should allow fundamental types to impl traits when they are local) - #65777 (Don't ICE for completely unexpandable `impl Trait` types) - #65834 (Remove lint callback from driver) - #65839 (Clean up `check_consts` now that new promotion pass is implemented) - #65855 (Add long error explaination for E0666) Failed merges: r? @ghost
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☀️ Test successful - checks-azure |
This was referenced Oct 27, 2019
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Successful merges:
impl Traittypes #65777 (Don't ICE for completely unexpandableimpl Traittypes)check_constsnow that new promotion pass is implemented #65839 (Clean upcheck_constsnow that new promotion pass is implemented)Failed merges:
r? @ghost