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538 Commits

Author SHA1 Message Date
Lukas Wirth
28ca371755 Consider trait to be in scope for trait-impl 2021-05-25 16:16:29 +02:00
bors[bot]
33fdd512e3
Merge #8987 
8987: Fix lowering of FnOnce() without return type r=flodiebold a=flodiebold

This should result in an implicit `-> ()`, not leaving out the binding.

Co-authored-by: Florian Diebold <flodiebold@gmail.com>
 2021-05-25 13:25:15 +00:00
Florian Diebold
7c6f764ad6 Hide -> () in Fn traits 2021-05-25 15:23:52 +02:00
Lukas Wirth
3ee4e6c54c Fix type inference not working for new Try trait 2021-05-25 14:59:54 +02:00
Florian Diebold
35c948ff4a Fix lowering of FnOnce() without return type 
This should result in an implicit `-> ()`, not leaving out the binding.
 2021-05-25 14:29:53 +02:00
Florian Diebold
c33ee36d2a Minor test fixes / new tests 2021-05-25 13:07:18 +02:00
Florian Diebold
b26a472ccb Fix type mismatch caused by macros 
MacroStmts should be completely transparent, but it prevented
coercion. (I should maybe give `infer_expr` and `infer_expr_inner`
better names.)
 2021-05-25 11:15:02 +02:00
Aleksey Kladov
45112aa8c0 internal: rename hypothetical -> speculative 
Lets steal this good naming from Roslyn before I forget about it yet
again.
 2021-05-24 22:21:25 +03:00
bors[bot]
c139eff5b8
Merge #8963 
8963: Bump deps r=matklad a=lnicola



Co-authored-by: Laurențiu Nicola <lnicola@dend.ro>
 2021-05-24 15:34:52 +00:00
Laurențiu Nicola
74f1b21b08 Bump chalk 2021-05-24 16:27:24 +03:00
Jonas Schievink
8ebb8d29e1 internal: intern TypeBounds 
Doesn't save much memory (~2 mb), but interning things is generally a
good pattern to follow
 2021-05-24 15:13:23 +02:00
Florian Diebold
4a6cdd776d Record method call substs and use them in call info 2021-05-23 18:24:21 +02:00
Florian Diebold
a5d85a6356 Add test for #8931 and better checking 2021-05-23 12:52:41 +02:00
Florian Diebold
a88c7c04d2 Add last remaining module docstring 2021-05-22 16:39:56 +02:00
Florian Diebold
63614aafad Resolve any lifetime variables to 'static after inference 
Chalk's unification can sometimes create lifetime variables, which we
currently don't really deal with, but at least we don't want to leak
them outside of inference.

Should fix #8919.
 2021-05-22 14:27:22 +02:00
Florian Diebold
ef558c97d0 Clean up visibilities 2021-05-21 19:51:21 +02:00
Florian Diebold
67f1a08fd8 Some remaining cleanups 2021-05-21 18:23:03 +02:00
Florian Diebold
e9d1550001 Fix test after rebase 2021-05-21 18:23:03 +02:00
Florian Diebold
6e5637983c Record type mismatches for failed coercions in match etc. 2021-05-21 18:23:03 +02:00
Florian Diebold
556c9cebdb Refactor expectation handling 
So as to not use `TyKind::Error` as "no expectation".
 2021-05-21 18:23:03 +02:00
Florian Diebold
99c73537fa Remove TypeVariableTable 2021-05-21 17:49:09 +02:00
Florian Diebold
9716c0b949 Deal with goals arising from unification 2021-05-21 17:49:09 +02:00
Florian Diebold
4bd446f5b3 Get rid of resolve_ty_as_possible 
Instead use shallow resolving where necessary.
 2021-05-21 17:49:07 +02:00
Florian Diebold
a78f0076ab Make resolve_ty_shallow return Ty 2021-05-21 17:48:34 +02:00
Florian Diebold
1250ddc5cf Rework obligation handling 
We can't do the easy hack that we did before anymore, where we kept
track of whether any inference variables changed since the last time we
rechecked obligations. Instead, we store the obligations in
canonicalized form; that way we can easily check the inference variables
to see whether they have changed since the goal was canonicalized.
 2021-05-21 17:48:34 +02:00
Florian Diebold
a3d9cac690 Fix another panic 2021-05-21 17:48:34 +02:00
Florian Diebold
29266ada04 Improve debug printing without TLS 2021-05-21 17:48:34 +02:00
Florian Diebold
7c423f5b88 Fix panic 2021-05-21 17:48:34 +02:00
Florian Diebold
8397734cfe Fix HIR expecting errors to unify with anything 2021-05-21 17:48:34 +02:00
Florian Diebold
b939a6dcac Fix if/else coercion 2021-05-21 17:48:34 +02:00
Florian Diebold
212f0477f2 Make diverging type variables work again 
Chalk doesn't know about the `diverging` flag, so we need to instead
propagate it before fully resolving the variables.
 2021-05-21 17:48:34 +02:00
Florian Diebold
32fc944263 Fix handling of diverging branches in match coercion 
Fixes #7626.
 2021-05-21 17:48:34 +02:00
Florian Diebold
a09079f27a Fix coercion of two closures to a function pointer 
Fixes #8604.
 2021-05-21 17:48:34 +02:00
Florian Diebold
afa6be2435 Update tests with expected changes 2021-05-21 17:48:34 +02:00
Florian Diebold
3379a52dff Make type resolver a proper folder, make it resolve consts as well 2021-05-21 17:48:34 +02:00
Florian Diebold
278f5b043d Fix fallback to bound vars in unify 2021-05-21 17:48:34 +02:00
Florian Diebold
aebcf7b5d4 Better Debug impl for InternedWrapper 2021-05-21 17:48:34 +02:00
Florian Diebold
0f7f1f0705 Temporary fix for unknown expectations 2021-05-21 17:48:34 +02:00
Florian Diebold
4ca1981c91 Fix warnings & format 2021-05-21 17:48:34 +02:00
Florian Diebold
693582946f Rewrite coercion using the new unification 2021-05-21 17:48:33 +02:00
Florian Diebold
84074cb185 Remove our unification code, use Chalk's instead 2021-05-21 17:48:33 +02:00
Dawer
e2b1c69f74 Check patterns for type match recursively. 2021-05-19 11:08:59 +05:00
Dawer
472317c008 internal: Record mismatches of pattern types. 2021-05-19 11:08:59 +05:00
bors[bot]
a57bd59f35
Merge #8813 
8813: Get some more array lengths! r=lf- a=lf-

This is built on #8799 and thus contains its changes. I'll rebase it onto master when that one gets merged. It adds support for r-a understanding the length of:

* `let a: [u8; 2] = ...`
* `let a = b"aaa"`
* `let a = [0u8; 4]`

I have added support for getting the values of byte strings, which was not previously there. I am least confident in the correctness of this part and it probably needs some more tests, as we currently have only one test that exercised that part (!).

Fixes #2922.

Co-authored-by: Jade <software@lfcode.ca>
 2021-05-16 01:53:12 +00:00
Jade
de0ed9860d Address final feedback 
* rename ConstExtension->ConstExt
* refactor a manual construction of a Const
 2021-05-15 18:51:18 -07:00
Dawer
2abb4c99fe Fix false positive "Missing match arm". 2021-05-15 00:18:59 +05:00
Jade
78d6b88f21 Add more tests, refactor array lengths/consteval work 
Fix #2922: add unknown length as a condition for a type having unknown.

Incorporate reviews:

* Extract some of the const evaluation workings into functions
* Add fixmes on the hacks
* Add tests for impls on specific array lengths (these work!!! 😁)
* Add tests for const generics (indeed we don't support it yet)
 2021-05-14 01:39:28 -07:00
Jade
32c600664e Test lowering byte strings some more 2021-05-12 21:22:46 -07:00
Jade
e666589e63 Add support for lengths in array repeats, if they are literals 
Now we will get the type of `[0u8; 4]`.
 2021-05-12 21:22:46 -07:00
Jade
73023c0299 Support length for ByteStrings 
I am not confident that my added byte string parsing is right.
 2021-05-12 21:22:46 -07:00