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* Rework find_super_trait_path to protect against cyclesFlorian Diebold2020-02-221-0/+38
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* Add &dyn Trait -> &dyn SuperTrait coercion, and fix &T -> &dyn TraitFlorian Diebold2020-02-221-14/+26
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* Implement dyn Trait unsizing as wellFlorian Diebold2020-02-221-1/+7
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* Implement unsize coercion using proper trait solvingFlorian Diebold2020-02-221-0/+82
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* Fix handling of const patternsFlorian Diebold2020-02-211-1/+45
| | | | | | | | | E.g. in `match x { None => ... }`, `None` is a path pattern (resolving to the option variant), not a binding. To determine this, we need to try to resolve the name during lowering. This isn't too hard since we already need to resolve names for macro expansion anyway (though maybe a bit hacky). Fixes #1618.
* Normalize associated types in types coming from ChalkFlorian Diebold2020-02-211-0/+42
| | | | Fixes #3232.
* Exclude methods from non-parameter types introduced by generic constraintsLaurențiu Nicola2020-02-191-0/+23
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* Fix coercion of &T to itselfFlorian Diebold2020-02-161-0/+22
| | | | | The autoderef coercion logic did not handle matching placeholders. This led to some type mismatches.
* Merge #3147bors[bot]2020-02-141-0/+32
|\ | | | | | | | | | | | | | | 3147: Check that impl self type matches up with expected self type in path mode r=matklad a=flodiebold Fixes #3144. Co-authored-by: Florian Diebold <[email protected]>
| * Check that impl self type matches up with expected self type in path modeFlorian Diebold2020-02-141-0/+32
| | | | | | | | Fixes #3144.
* | Make Self implement the trait inside trait default methodsFlorian Diebold2020-02-141-0/+48
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* Don't let unknown match arms fall back to !Florian Diebold2020-02-111-0/+17
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* Add two more testsFlorian Diebold2020-02-071-0/+51
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* Don't print implicit type args from impl TraitFlorian Diebold2020-02-071-11/+11
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* Deal better with implicit type parameters and argument listsFlorian Diebold2020-02-071-0/+108
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* Clean up RPIT a bitFlorian Diebold2020-02-071-13/+11
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* Fix APIT some moreFlorian Diebold2020-02-071-23/+28
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* Change Ty::Param to contain param IDFlorian Diebold2020-02-072-3/+2
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* WIP use params for APITFlorian Diebold2020-02-071-0/+53
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* Fix assoc type selectionFlorian Diebold2020-02-071-3/+3
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* Fix another testFlorian Diebold2020-02-071-2/+2
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* Fix enum constructorsFlorian Diebold2020-02-072-5/+5
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* Fix printing of function typesFlorian Diebold2020-02-076-69/+69
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* Lower impl trait to variables, move away from using placeholders where they ↵Florian Diebold2020-02-071-1/+1
| | | | don't belong
* wip implement lowering modeFlorian Diebold2020-02-071-20/+8
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* Standard formatting for array typesAleksey Kladov2020-01-284-88/+88
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* Ignore failing impl Trait testsFlorian Diebold2020-01-271-0/+2
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* Fix inference for shift operatorsFlorian Diebold2020-01-171-0/+21
| | | | Fixes #2602.
* Use dummy value for line! and column! macroEdwin Cheng2020-01-141-2/+2
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* Fix various names, e.g. Iterator not resolving in core preludeFlorian Diebold2020-01-111-0/+54
| | | | | | | | | | | | | Basically, `Iterator` is re-exported via several steps, which happened to not be resolved yet when we got to the prelude import, but since the name resolved to the reexport from `core::iter` (just to no actual items), we gave up trying to resolve it further. Maybe part of the problem is that we can have `PartialResolvedImport::Unresolved` or `PartialResolvedImport::Indeterminate` with `None` in all namespaces, and handle them differently. Fixes #2683.
* Add test for macro expansion in various expressionsFlorian Diebold2020-01-101-0/+81
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* Expand PAREN_EXPR as expressionEdwin Cheng2020-01-101-0/+17
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* Fix #2705Florian Diebold2020-01-031-0/+17
| | | | | | | | The `-` turned into a `+` during a refactoring. The original issue was caused by `Read` resolving wrongly to a trait without type parameters instead of a struct with one parameter; this only fixes the crash, not the wrong resolution.
* Resolve traits in infer using lang item infrastructureEmil Lauridsen2019-12-292-0/+6
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* Don't add non-impl/trait containers to scopeAleksey Kladov2019-12-292-1/+38
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* Merge #2661bors[bot]2019-12-241-0/+57
|\ | | | | | | | | | | | | | | | | | | | | | | 2661: Implement infer await from async function r=flodiebold a=edwin0cheng This PR is my attempt for trying to add support for infer `.await` expression from an `async` function, by desugaring its return type to `Impl Future<Output=RetType>`. Note that I don't know it is supposed to desugaring it in that phase, if it is not suitable in current design, just feel free to reject it :) r=@flodiebold Co-authored-by: Edwin Cheng <[email protected]>
| * Implement infer await from async funcEdwin Cheng2019-12-241-0/+57
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* | Filter out error predicates in type bounds as wellFlorian Diebold2019-12-221-0/+17
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* | Introduce our own Chalk TypeFamily, instead of using ChalkIrFlorian Diebold2019-12-221-2/+2
|/ | | | | | It's not very different, except we can directly use Salsa IDs instead of casting them. This means we need to refactor the handling of errors to get rid of UNKNOWN_TRAIT though.
* Rudimentary name resolution for local itemsAleksey Kladov2019-12-221-6/+6
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* Recursive collect macros in impl itemsEdwin Cheng2019-12-201-0/+23
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* Merge #2623bors[bot]2019-12-201-0/+19
|\ | | | | | | | | | | | | | | | | | | 2623: Add support macros in impl blocks r=matklad a=edwin0cheng This PR add support for macros in impl blocks, which reuse `Expander` for macro expansion. see also: #2459 Co-authored-by: Edwin Cheng <[email protected]>
| * Add support macros in impl blocksEdwin Cheng2019-12-201-0/+19
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* | Coerce closures to fn pointersFlorian Diebold2019-12-202-5/+44
| | | | | | | | E.g. `let x: fn(A) -> B = |x| { y };`
* | Fix coercion of last expression in function bodyFlorian Diebold2019-12-201-0/+16
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* | Handle closure return typesFlorian Diebold2019-12-202-0/+86
|/ | | | Fixes #2547.
* Add std::ops::Index support for inferingEdwin Cheng2019-12-191-0/+32
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* Add test markFlorian Diebold2019-12-151-2/+6
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* Handle impl Trait more correctlyFlorian Diebold2019-12-151-0/+31
| | | | | | | When calling a function, argument-position impl Trait is transparent; same for return-position impl Trait when inside the function. So in these cases, we need to represent that type not by `Ty::Opaque`, but by a type variable that can be unified with whatever flows into there.
* Add test for unifying impl TraitFlorian Diebold2019-12-151-1/+27
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