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4 years agoAuto merge of #63820 - oli-obk:eager_const_eval, r=nikomatsakis
bors [Wed, 28 Aug 2019 07:29:07 +0000 (07:29 +0000)]
Auto merge of #63820 - oli-obk:eager_const_eval, r=nikomatsakis

Simplify eager normalization of constants

r? @nikomatsakis

4 years agoAuto merge of #63127 - kper:pr, r=nikomatsakis
bors [Wed, 28 Aug 2019 03:42:00 +0000 (03:42 +0000)]
Auto merge of #63127 - kper:pr, r=nikomatsakis

Cleanup: Consistently use `Param` instead of `Arg` #62426

Fixes #62426

4 years agoAuto merge of #63960 - ehuss:update-cargo, r=alexcrichton
bors [Tue, 27 Aug 2019 23:57:05 +0000 (23:57 +0000)]
Auto merge of #63960 - ehuss:update-cargo, r=alexcrichton

Update cargo

Update cargo

10 commits in 3f700ec43ce72305eb5315cfc710681f3469d4b4..22f7dd0495cd72ce2082d318d5a9b4dccb9c5b8c
2019-08-19 22:43:12 +0000 to 2019-08-27 16:10:51 +0000
- Update and improve zsh completion (rust-lang/cargo#7296)
- Document that `package` can be used in `[patch]` (rust-lang/cargo#7263)
- Fix `error:`/`warning:` coloring inconsistency with rustc (rust-lang/cargo#7294)
- Tests: Import rustc_plugin from its new location (rust-lang/cargo#7287)
- Update README azure badge. (rust-lang/cargo#7293)
- Update home dependencies to v0.5 (rust-lang/cargo#7277)
- Fix typo (rust-lang/cargo#7279)
- Update libgit2 dependencies (rust-lang/cargo#7275)
- Fix old lockfile encoding wrt newlines (rust-lang/cargo#7262)
- Fix dSYM uplifting when symlink is broken (rust-lang/cargo#7268)

4 years agoUpdate cargo
Eric Huss [Tue, 27 Aug 2019 21:03:32 +0000 (14:03 -0700)]
Update cargo

4 years agoAuto merge of #63922 - RalfJung:miri, r=nikomatsakis
bors [Tue, 27 Aug 2019 16:23:59 +0000 (16:23 +0000)]
Auto merge of #63922 - RalfJung:miri, r=nikomatsakis

update miri

Cc @oli-obk

Fixes https://github.com/rust-lang/rust/issues/63843

4 years agoChanging error messages and renaming tests #63127
Kevin Per [Tue, 27 Aug 2019 13:47:41 +0000 (15:47 +0200)]
Changing error messages and renaming tests #63127

`async-await/no-args-non-move-async-closure`
`generator/no-arguments-on-generators`

4 years agoupdate miri
Ralf Jung [Tue, 27 Aug 2019 13:49:47 +0000 (15:49 +0200)]
update miri

4 years agoAuto merge of #63639 - Mark-Simulacrum:rustdoc-clean-3, r=GuillaumeGomez
bors [Tue, 27 Aug 2019 12:45:16 +0000 (12:45 +0000)]
Auto merge of #63639 - Mark-Simulacrum:rustdoc-clean-3, r=GuillaumeGomez

rustdoc: general cleanup

4 years agoCleanup: Consistently use `Param` instead of `Arg` #62426
Kevin Per [Tue, 27 Aug 2019 11:24:32 +0000 (13:24 +0200)]
Cleanup: Consistently use `Param` instead of `Arg` #62426

4 years agoAuto merge of #63940 - Centril:rollup-47qe9gn, r=Centril
bors [Tue, 27 Aug 2019 06:18:24 +0000 (06:18 +0000)]
Auto merge of #63940 - Centril:rollup-47qe9gn, r=Centril

Rollup of 4 pull requests

Successful merges:

 - #62600 (libtest: add --show-output flag to print stdout of successful tests)
 - #63698 (Fixed floating point issue with asinh function)
 - #63761 (Propagate spans and attributes from proc macro definitions)
 - #63917 (Error when generator trait is not found)

Failed merges:

r? @ghost

4 years agoRollup merge of #63917 - lzutao:langitem_gen_63912, r=centril,cramert
Mazdak Farrokhzad [Tue, 27 Aug 2019 06:17:52 +0000 (08:17 +0200)]
Rollup merge of #63917 - lzutao:langitem_gen_63912, r=centril,cramert

Error when generator trait is not found

Closes #63912

4 years agoRollup merge of #63761 - petrochenkov:procattrs, r=eddyb
Mazdak Farrokhzad [Tue, 27 Aug 2019 06:17:51 +0000 (08:17 +0200)]
Rollup merge of #63761 - petrochenkov:procattrs, r=eddyb

Propagate spans and attributes from proc macro definitions

Thanks to https://github.com/rust-lang/rust/pull/63269 we now have spans and attributes from proc macro definitions available in metadata.

However, that PR didn't actually put them into use! This PR finishes that work.

Attributes `rustc_macro_transparency`, `allow_internal_unstable`, `allow_internal_unsafe`, `local_inner_macros`, `rustc_builtin_macro`, `stable`, `unstable`, `rustc_deprecated`, `deprecated` now have effect when applied to proc macro definition functions.
From those attributes only `deprecated` is both stable and supposed to be used in new code.
(`#![staged_api]` still cannot be used in proc macro crates for unrelated reasons though.)

`Span::def_site` from the proc macro API now returns the correct location of the proc macro definition.

Also, I made a mistake in https://github.com/rust-lang/rust/pull/63269#discussion_r312702919, loaded proc macros didn't actually use the resolver cache.
This PR fixes the caching issue, now proc macros go through the `Resolver::macro_map` cache as well.

(Also, the first commit turns `proc_macro::quote` into a regular built-in macro to reduce the number of places where `SyntaxExtension`s need to be manually created.)

4 years agoRollup merge of #63698 - Phosphorus15:master, r=nagisa
Mazdak Farrokhzad [Tue, 27 Aug 2019 06:17:49 +0000 (08:17 +0200)]
Rollup merge of #63698 - Phosphorus15:master, r=nagisa

Fixed floating point issue with asinh function

This should fixes #63271 , in which `asinh(-0.0)` returns `0.0` instead of `-0.0`.
according to @nagisa
>
>
> IEEE-754 (2008), section 9.2.1:
>
> > For the functions expm1, exp2m1, exp10m1, logp1, log2p1, log10p1, sin, tan, sinPi, atanPi, asin, atan, sinh, tanh, asinh, and atanh, f(+0) is +0 and f(−0) is −0 with no exception.
>
> and
>
> > sinh(±∞) and asinh(±∞) are ±∞ with no exception.

After ensuring that the function `asinh` is the only function affected (functions like `sin`, `sinh` are all based on `cmath` library or `llvm` intrinsics), and that `atanh` always gives the correct result. The only function to modify is `asinh`.

4 years agoRollup merge of #62600 - emmericp:libtest-add-show-output, r=gnzlbg
Mazdak Farrokhzad [Tue, 27 Aug 2019 06:17:48 +0000 (08:17 +0200)]
Rollup merge of #62600 - emmericp:libtest-add-show-output, r=gnzlbg

libtest: add --show-output flag to print stdout of successful tests

This pull request adds a new flag `--show-output` for tests to show the output of successful tests. For most formatters this was already supported just not exposed via the CLI (apparently only used by `librustdoc`). I've also added support for this option in the JSON formatter.

This kind of fixes https://github.com/rust-lang/rust/issues/54669 which wants `--format json` to work with `--nocapture`, which is... well, impossible. What this issue really calls for is `--show-output` as implemented here.

4 years agoShorten line during rendering instead of in markdown
Mark Rousskov [Mon, 12 Aug 2019 20:49:22 +0000 (16:49 -0400)]
Shorten line during rendering instead of in markdown

4 years agoInline recurse into only callsite
Mark Rousskov [Mon, 12 Aug 2019 20:43:26 +0000 (16:43 -0400)]
Inline recurse into only callsite

4 years agoTransition a few fmt::Display impls to functions
Mark Rousskov [Mon, 12 Aug 2019 18:36:09 +0000 (14:36 -0400)]
Transition a few fmt::Display impls to functions

This introduces a WithFormatter abstraction that permits one-time
fmt::Display on an arbitrary closure, created via `display_fn`. This
allows us to prevent allocation while still using functions instead of
structs, which are a bit unwieldy to thread arguments through as they
can't easily call each other (and are generally a bit opaque).

The eventual goal here is likely to move us off of the formatting
infrastructure entirely in favor of something more structured, but this
is a good step to move us in that direction as it makes, for example,
passing a context describing current state to the formatting impl much
easier.

4 years agoAuto merge of #63926 - Centril:rollup-6kckn9n, r=Centril
bors [Tue, 27 Aug 2019 00:07:38 +0000 (00:07 +0000)]
Auto merge of #63926 - Centril:rollup-6kckn9n, r=Centril

Rollup of 6 pull requests

Successful merges:

 - #63317 (Do not complain about unused code when used in `impl` `Self` type)
 - #63693 (Fully implement or-pattern parsing)
 - #63836 (VxWorks does not provide a way to set the task name except at creation time)
 - #63845 (Removed a confusing FnOnce example)
 - #63855 (Refactor feature gates)
 - #63921 (add link to FileCheck docs)

Failed merges:

r? @ghost

4 years agoInline RawMutableSpace
Mark Rousskov [Mon, 12 Aug 2019 16:57:48 +0000 (12:57 -0400)]
Inline RawMutableSpace

4 years agoStore only the current depth
Mark Rousskov [Mon, 12 Aug 2019 16:53:45 +0000 (12:53 -0400)]
Store only the current depth

Previously we stored the entire current path which is a bit expensive
and only ever accessed its length. This stores the length directly.

4 years agoRemove support for printing HRef in alternate mode
Mark Rousskov [Mon, 12 Aug 2019 15:18:25 +0000 (11:18 -0400)]
Remove support for printing HRef in alternate mode

The alternate mode merely prints out the passed in text which is largely
useless (as the text can simply be directly printed).

4 years agoRemove dead tracking of external param names
Mark Rousskov [Mon, 12 Aug 2019 11:32:38 +0000 (07:32 -0400)]
Remove dead tracking of external param names

4 years agoMutate DocContext from LibEmbargoVisitor and RustdocVisitor
Mark Rousskov [Mon, 12 Aug 2019 11:21:04 +0000 (07:21 -0400)]
Mutate DocContext from LibEmbargoVisitor and RustdocVisitor

We have &mut access, so remove the RefCell borrowing

4 years agoMove top-level Clean impl to function
Mark Rousskov [Mon, 12 Aug 2019 11:10:55 +0000 (07:10 -0400)]
Move top-level Clean impl to function

This allows us to pass it a `&mut DocContext` which will allow removal
of RefCells, etc. in the following commits. It's also somewhat a unique
Clean impl in that it previously ignored `self` (re-retriveing
hir::Crate), which it no longer needs to do.

4 years agoMove source HTML generation to own module
Mark Rousskov [Sun, 11 Aug 2019 20:11:53 +0000 (16:11 -0400)]
Move source HTML generation to own module

4 years agoproc_macro: Update `Span::def_site` to use the proc macro definition location
Vadim Petrochenkov [Tue, 20 Aug 2019 20:35:03 +0000 (23:35 +0300)]
proc_macro: Update `Span::def_site` to use the proc macro definition location

Which is no longer dummy and is available from metadata now.

4 years agometadata: Eliminate `FullProcMacro`
Vadim Petrochenkov [Tue, 20 Aug 2019 20:18:55 +0000 (23:18 +0300)]
metadata: Eliminate `FullProcMacro`

Fix caching of loaded proc macros

4 years agoRespect attributes on proc macro definitions
Vadim Petrochenkov [Tue, 20 Aug 2019 18:22:32 +0000 (21:22 +0300)]
Respect attributes on proc macro definitions

4 years agoRollup merge of #63921 - RalfJung:file-check, r=alexcrichton
Mazdak Farrokhzad [Mon, 26 Aug 2019 21:55:51 +0000 (23:55 +0200)]
Rollup merge of #63921 - RalfJung:file-check, r=alexcrichton

add link to FileCheck docs

Thanks @gnzlbg for pointing me to those docs.

4 years agoRollup merge of #63855 - killercup:refactor/feature-gates, r=Centril
Mazdak Farrokhzad [Mon, 26 Aug 2019 21:55:49 +0000 (23:55 +0200)]
Rollup merge of #63855 - killercup:refactor/feature-gates, r=Centril

Refactor feature gates

After #63824, this goes a few steps further by

- parsing doc comments in the macros to extract descriptions for feature gates, and
- introducing a common `Feature` type to replace the tuples used previously to improve readability.

The descriptions are not yet used, but I felt like this PR is a useful enough refactoring on its own.

r? @Centril

4 years agoRollup merge of #63845 - DevQps:47091-remove-bad-example, r=nikomatsakis
Mazdak Farrokhzad [Mon, 26 Aug 2019 21:55:47 +0000 (23:55 +0200)]
Rollup merge of #63845 - DevQps:47091-remove-bad-example, r=nikomatsakis

Removed a confusing FnOnce example

# Description
See #47091 for a discussion.

## Changes
- Removed an example that might suggest readers that square_x is (only) FnOnce.

closes #47091

4 years agoRollup merge of #63836 - Wind-River:master_003, r=alexcrichton
Mazdak Farrokhzad [Mon, 26 Aug 2019 21:55:46 +0000 (23:55 +0200)]
Rollup merge of #63836 - Wind-River:master_003, r=alexcrichton

VxWorks does not provide a way to set the task name except at creation time

Make set_name do thing as VxWorks does not provide a way to set the task name except at creation time.

r? @alexcrichton

cc @n-salim

4 years agoRollup merge of #63693 - Centril:polish-parse-or-pats, r=estebank
Mazdak Farrokhzad [Mon, 26 Aug 2019 21:55:44 +0000 (23:55 +0200)]
Rollup merge of #63693 - Centril:polish-parse-or-pats, r=estebank

Fully implement or-pattern parsing

Builds upon the initial parsing in https://github.com/rust-lang/rust/pull/61708 to fully implement or-pattern (`p | q`) parsing as specified in [the grammar section of RFC 2535](https://github.com/rust-lang/rfcs/blob/master/text/2535-or-patterns.md#grammar).

Noteworthy:

- We allow or-patterns in `[p | q, ...]`.
- We allow or-patterns in `let` statements and `for` expressions including with leading `|`.
- We improve recovery for `p || q` (+ tests for that in `multiple-pattern-typo.rs`).
- We improve recovery for `| p | q` in inner patterns (tests in `or-patterns-syntactic-fail.rs`).
- We rigorously test or-pattern parsing (in `or-patterns-syntactic-{pass,fail}.rs`).
- We harden the feature gating tests.
- We do **_not_** change `ast.rs`. That is, `ExprKind::Let.0` and `Arm.pats` still accept `Vec<P<Pat>>`.
   I was starting work on that but it would be cleaner to do this in a separate PR so this one has a narrower scope.

cc @dlrobertson
cc the tracking issue https://github.com/rust-lang/rust/issues/54883.

r? @estebank

4 years agoRollup merge of #63317 - estebank:dead-code, r=matthewjasper
Mazdak Farrokhzad [Mon, 26 Aug 2019 21:55:42 +0000 (23:55 +0200)]
Rollup merge of #63317 - estebank:dead-code, r=matthewjasper

Do not complain about unused code when used in `impl` `Self` type

Fix https://github.com/rust-lang/rust/issues/18290.

4 years agoproc_macro: Turn `quote` into a regular built-in macro
Vadim Petrochenkov [Mon, 19 Aug 2019 23:26:40 +0000 (02:26 +0300)]
proc_macro: Turn `quote` into a regular built-in macro

Previously in was implemented using a special hack in the metadata loader

4 years agoreview comment
Esteban Küber [Mon, 26 Aug 2019 20:25:27 +0000 (13:25 -0700)]
review comment

4 years agoparser: fix span for leading vert.
Mazdak Farrokhzad [Mon, 26 Aug 2019 20:14:31 +0000 (22:14 +0200)]
parser: fix span for leading vert.

4 years agoadd link to FileCheck docs
Ralf Jung [Mon, 26 Aug 2019 18:40:30 +0000 (20:40 +0200)]
add link to FileCheck docs

4 years agoError when generator trait is not found
Lzu Tao [Mon, 26 Aug 2019 17:51:52 +0000 (17:51 +0000)]
Error when generator trait is not found

4 years agoAuto merge of #63901 - estebank:unknown-receiver-type, r=zackmdavis
bors [Mon, 26 Aug 2019 17:33:50 +0000 (17:33 +0000)]
Auto merge of #63901 - estebank:unknown-receiver-type, r=zackmdavis

Point at method call on missing annotation error

Make it clearer where the type name that couldn't be inferred comes from.

Before:

```
error[E0282]: type annotations needed
 --> src/test/ui/span/type-annotations-needed-expr.rs:2:13
  |
2 |     let _ = (vec![1,2,3]).into_iter().sum() as f64; //~ ERROR E0282
  |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type for `S`
  |
  = note: type must be known at this point
```
after
```
error[E0282]: type annotations needed
 --> src/test/ui/span/type-annotations-needed-expr.rs:2:39
  |
2 |     let _ = (vec![1,2,3]).into_iter().sum() as f64; //~ ERROR E0282
  |                                       ^^^ cannot infer type for `S`
  |
  = note: type must be known at this point
```

CC #63852.

4 years agoAuto merge of #63897 - petrochenkov:prettycomma, r=estebank
bors [Mon, 26 Aug 2019 13:45:18 +0000 (13:45 +0000)]
Auto merge of #63897 - petrochenkov:prettycomma, r=estebank

pprust: Do not print spaces before some tokens

Fixes https://github.com/rust-lang/rust/issues/63896

r? @Mark-Simulacrum

4 years agoAuto merge of #63580 - wesleywiser:move_promoted_out, r=oli-obk
bors [Mon, 26 Aug 2019 07:48:24 +0000 (07:48 +0000)]
Auto merge of #63580 - wesleywiser:move_promoted_out, r=oli-obk

Move promoted MIR out of `mir::Body`

r? @oli-obk

4 years agoAuto merge of #62891 - vext01:improve-black-box-docs, r=RalfJung,Centril,gnzlbg
bors [Mon, 26 Aug 2019 04:10:54 +0000 (04:10 +0000)]
Auto merge of #62891 - vext01:improve-black-box-docs, r=RalfJung,Centril,gnzlbg

Improve the documentation for std::hint::black_box.

The other day a colleague was reviewing some of my code which was using `black_box` to block constant propogation. There was a little confusion because the documentation kind of implies that `black_box` is only useful for dead code elimination, and only in benchmarking scenarios.

The docs currently say:

> A function that is opaque to the optimizer, to allow benchmarks to pretend to use outputs to assist in avoiding dead-code elimination.

Here is our discussion, in which I show (using godbolt) that a black box can also block constant propagation:
https://github.com/softdevteam/yk/pull/21#discussion_r302985038

This change makes the docstring for `black_box` a little more general, and while we are here, I've added an example (the same one from our discussion).

![image](https://user-images.githubusercontent.com/604955/61701322-ddf1e400-ad35-11e9-878c-b5b44a20770c.png)

OK to go in?

4 years agoAuto merge of #62603 - cuviper:no-unwind-abort, r=joshtriplett
bors [Mon, 26 Aug 2019 00:27:17 +0000 (00:27 +0000)]
Auto merge of #62603 - cuviper:no-unwind-abort, r=joshtriplett

Permit unwinding through FFI by default

This repeats #62505 for master (Rust 1.38+), as #58794 is not yet resolved. This is a stopgap until a stable alternative is available, like [RFC 2699](https://github.com/rust-lang/rfcs/pull/2699), as long as progress is being made to that end.

r? @joshtriplett

4 years agoPoint at method call on missing annotation error
Esteban Küber [Sun, 25 Aug 2019 20:34:57 +0000 (13:34 -0700)]
Point at method call on missing annotation error

Make it clearer where the type name that couldn't be infered comes from.

4 years agoAuto merge of #61613 - sinkuu:impl_trait_inline, r=ollie27
bors [Sun, 25 Aug 2019 19:20:20 +0000 (19:20 +0000)]
Auto merge of #61613 - sinkuu:impl_trait_inline, r=ollie27

Support `impl Trait` in inlined documentation

`impl Trait` in argument position was not properly rendered when inlined from other crates. ([a live example on docs.rs](https://docs.rs/libp2p/0.8.1/libp2p/floodsub/struct.Floodsub.html#method.unsubscribe))

![old](https://user-images.githubusercontent.com/7091080/59089838-14ba9900-8946-11e9-830b-53b317bdecb4.png)

![new](https://user-images.githubusercontent.com/7091080/59089844-16845c80-8946-11e9-9fe3-8998af9d73ce.png)

4 years agoRefactor feature gate checking code
Pascal Hertleif [Sat, 24 Aug 2019 15:50:21 +0000 (17:50 +0200)]
Refactor feature gate checking code

Tries to clarify the filtering of active features and make the code more
expressive.

4 years agopprust: Do not print spaces before some tokens
Vadim Petrochenkov [Sun, 25 Aug 2019 17:41:52 +0000 (20:41 +0300)]
pprust: Do not print spaces before some tokens

4 years agoForce #[unwind(aborts)] in test/codegen/c-variadic.rs
Josh Stone [Fri, 10 May 2019 22:10:15 +0000 (15:10 -0700)]
Force #[unwind(aborts)] in test/codegen/c-variadic.rs

4 years agoRevert "Allow a dirty MirBuilt for make_extern and make_method_extern"
Josh Stone [Tue, 2 Apr 2019 21:53:57 +0000 (14:53 -0700)]
Revert "Allow a dirty MirBuilt for make_extern and make_method_extern"

This reverts commit b4a6f597934f16f89e27058a32a514c9572f148f.

4 years agoPermit unwinding through FFI by default
Mark Rousskov [Thu, 28 Feb 2019 00:21:31 +0000 (17:21 -0700)]
Permit unwinding through FFI by default

See #58794 for context.

4 years agoAuto merge of #63878 - phansch:update_clippy_submodule, r=Manishearth
bors [Sun, 25 Aug 2019 15:42:13 +0000 (15:42 +0000)]
Auto merge of #63878 - phansch:update_clippy_submodule, r=Manishearth

submodules: update Clippy from 2bcb615 to 05f603e

changes: https://github.com/rust-lang/rust-clippy/compare/2bcb615...05f603e

Should fix the Clippy toolstate.

4 years agosubmodules: update clippy from 2bcb6155948e2f8b86db08152a5f54bd5af625e5 to 05f603e6ce...
Philipp Hansch [Sun, 25 Aug 2019 10:54:31 +0000 (12:54 +0200)]
submodules: update clippy from 2bcb6155948e2f8b86db08152a5f54bd5af625e5 to 05f603e6cec63d0b2681a84d4a64a51bccac1624

4 years agoIntroduce and use `Feature` type for feature gates
Pascal Hertleif [Sat, 24 Aug 2019 15:50:21 +0000 (17:50 +0200)]
Introduce and use `Feature` type for feature gates

This replaces the ad-hoc tuples used in the different feature gate files
and unifies their content into a common type, leading to more readable
matches and other good stuff that comes from having named fields. It
also contains the description of each feature as extracted from the doc
comment.

4 years agoAuto merge of #63874 - spastorino:places-drive-by-cleanups, r=Centril
bors [Sun, 25 Aug 2019 08:06:06 +0000 (08:06 +0000)]
Auto merge of #63874 - spastorino:places-drive-by-cleanups, r=Centril

Places drive by cleanups

Small fixes of things meanwhile I was doing the box part of Place 2.0, based on @centril reviews.

4 years agoAuto merge of #63862 - Centril:match-cleanup, r=oli-obk
bors [Sun, 25 Aug 2019 04:26:26 +0000 (04:26 +0000)]
Auto merge of #63862 - Centril:match-cleanup, r=oli-obk

typeck: refactor patterns => `pat.rs`  + make the `def_bm` algo more declarative

Spurred by the relative difficulty I had in working up an explanation of how default match bindings work in https://github.com/rust-lang/rust/pull/63118#issuecomment-524161584, this PR refactors the type checking of patterns into `pat.rs`.

The PR is probably best read commit-by-commit and includes various changes beyond the following, which are the most important highlights:

- The algorithm for determining `def_bm` is encoded in a more declarative fashion now with important sub-steps divided into functions that make sense as logical units (and as described in the reference). This is done starting with *"extract `is_no_ref_pat`."* to *"extract `calc_default_binding_mode`"*.

- Dedicated functions like `check_pat_{lit,range,ident,tuple,box,ref,slice}` are then introduced for the various kinds of patterns to make things overall more readable.

- `fn check_pat_top(...)` becomes the sole entry point to type checking patterns.

   This will take care of initializing the default binding mode (hence: `def_bm`) to `BindByValue` and is called by all contexts that have a pattern that needs to be type checked (functions, `match`, `if let`, `let`, ...). The overall result is that the notion of `def_bm` is internal to checking patterns.

- Various diagnostics are extracted to dedicated functions to disturb the flow of type checking logic less.

r? @oli-obk

4 years agoparser: TopLevel -> RecoverComma.
Mazdak Farrokhzad [Sun, 25 Aug 2019 04:15:11 +0000 (06:15 +0200)]
parser: TopLevel -> RecoverComma.

4 years agoor_patterns: add run-rustfix tests.
Mazdak Farrokhzad [Sun, 25 Aug 2019 03:45:51 +0000 (05:45 +0200)]
or_patterns: add run-rustfix tests.

4 years agoparser: gracefully handle `fn foo(A | B: type)`.
Mazdak Farrokhzad [Sun, 25 Aug 2019 02:39:28 +0000 (04:39 +0200)]
parser: gracefully handle `fn foo(A | B: type)`.

4 years agoAdd a period at the end of the sentence
Santiago Pastorino [Sat, 24 Aug 2019 22:26:25 +0000 (15:26 -0700)]
Add a period at the end of the sentence

4 years agoJoin arms patterns, body is empty in all arms
Santiago Pastorino [Sat, 24 Aug 2019 21:19:32 +0000 (14:19 -0700)]
Join arms patterns, body is empty in all arms

4 years agoAllow lifetime parameters to be inferred
Santiago Pastorino [Sat, 24 Aug 2019 21:16:56 +0000 (14:16 -0700)]
Allow lifetime parameters to be inferred

4 years agoAuto merge of #63873 - Centril:rollup-jgglypd, r=Centril
bors [Sun, 25 Aug 2019 00:47:28 +0000 (00:47 +0000)]
Auto merge of #63873 - Centril:rollup-jgglypd, r=Centril

Rollup of 6 pull requests

Successful merges:

 - #62744 (Refactor `TinyList::contains` and `len` to iterate instead of recurse)
 - #63813 (Do not suggest `.try_into()` on `i32::from(x)`)
 - #63833 (Suggest calling closure with resolved return type when appropriate)
 - #63839 (Ensure miri can do bit ops on pointer values)
 - #63854 (Modifies how Arg, Arm, Field, FieldPattern and Variant are visited)
 - #63859 (Don't unwrap the result of `span_to_snippet`)

Failed merges:

r? @ghost

4 years agoRollup merge of #63859 - matthewjasper:check-snippet-result, r=Centril
Mazdak Farrokhzad [Sun, 25 Aug 2019 00:45:05 +0000 (02:45 +0200)]
Rollup merge of #63859 - matthewjasper:check-snippet-result, r=Centril

Don't unwrap the result of `span_to_snippet`

Closes #63800

4 years agoRollup merge of #63854 - c410-f3r:attrs-visit, r=petrochenkov
Mazdak Farrokhzad [Sun, 25 Aug 2019 00:45:04 +0000 (02:45 +0200)]
Rollup merge of #63854 - c410-f3r:attrs-visit, r=petrochenkov

Modifies how Arg, Arm, Field, FieldPattern and Variant are visited

Part of the necessary work to accomplish #63468.

4 years agoRollup merge of #63839 - oli-obk:intptrcast, r=RalfJung
Mazdak Farrokhzad [Sun, 25 Aug 2019 00:45:02 +0000 (02:45 +0200)]
Rollup merge of #63839 - oli-obk:intptrcast, r=RalfJung

Ensure miri can do bit ops on pointer values

r? @RalfJung

Fixes https://github.com/rust-lang/miri/issues/916

4 years agoRollup merge of #63833 - estebank:suggest-closure-call, r=petrochenkov
Mazdak Farrokhzad [Sun, 25 Aug 2019 00:45:01 +0000 (02:45 +0200)]
Rollup merge of #63833 - estebank:suggest-closure-call, r=petrochenkov

Suggest calling closure with resolved return type when appropriate

Follow up to #63337. CC #63100.

```
error[E0308]: mismatched types
  --> $DIR/fn-or-tuple-struct-without-args.rs:46:20
   |
LL |     let closure = || 42;
   |                   -- closure defined here
LL |     let _: usize = closure;
   |                    ^^^^^^^
   |                    |
   |                    expected usize, found closure
   |                    help: use parentheses to call this closure: `closure()`
   |
   = note: expected type `usize`
              found type `[closure@$DIR/fn-or-tuple-struct-without-args.rs:45:19: 45:24]`
```

4 years agoRollup merge of #63813 - estebank:int-from, r=varkor
Mazdak Farrokhzad [Sun, 25 Aug 2019 00:44:59 +0000 (02:44 +0200)]
Rollup merge of #63813 - estebank:int-from, r=varkor

Do not suggest `.try_into()` on `i32::from(x)`

Fix #63697.

4 years agoRollup merge of #62744 - llogiq:tiny-list-refactor, r=eddyb
Mazdak Farrokhzad [Sun, 25 Aug 2019 00:44:58 +0000 (02:44 +0200)]
Rollup merge of #62744 - llogiq:tiny-list-refactor, r=eddyb

Refactor `TinyList::contains` and `len` to iterate instead of recurse

None

4 years agoparser: 'while parsing this or-pattern...'
Mazdak Farrokhzad [Sat, 24 Aug 2019 23:50:21 +0000 (01:50 +0200)]
parser: 'while parsing this or-pattern...'

4 years agoparser: simplify parse_pat_with_or_{inner}
Mazdak Farrokhzad [Sat, 24 Aug 2019 23:00:19 +0000 (01:00 +0200)]
parser: simplify parse_pat_with_or_{inner}

4 years agotypeck/pat.rs: dedup in `check_pat_box`.
Mazdak Farrokhzad [Sat, 24 Aug 2019 22:27:55 +0000 (00:27 +0200)]
typeck/pat.rs: dedup in `check_pat_box`.

4 years agotypeck/pat.rs: dedup in `check_pat_ref`.
Mazdak Farrokhzad [Sat, 24 Aug 2019 22:08:28 +0000 (00:08 +0200)]
typeck/pat.rs: dedup in `check_pat_ref`.

4 years agoreview comment
Esteban Küber [Sat, 24 Aug 2019 21:54:35 +0000 (14:54 -0700)]
review comment

4 years agoparser: reword || recovery.
Mazdak Farrokhzad [Sat, 24 Aug 2019 21:44:28 +0000 (23:44 +0200)]
parser: reword || recovery.

4 years agoparser: extract recover_inner_leading_vert.
Mazdak Farrokhzad [Sat, 24 Aug 2019 21:10:46 +0000 (23:10 +0200)]
parser: extract recover_inner_leading_vert.

4 years agoparse_top_pat: silence leading vert gating sometimes.
Mazdak Farrokhzad [Sat, 24 Aug 2019 20:46:17 +0000 (22:46 +0200)]
parse_top_pat: silence leading vert gating sometimes.

4 years agoparser: bool -> TopLevel.
Mazdak Farrokhzad [Sat, 24 Aug 2019 20:12:19 +0000 (22:12 +0200)]
parser: bool -> TopLevel.

4 years agoparser: bool -> GateOr.
Mazdak Farrokhzad [Sat, 24 Aug 2019 19:43:28 +0000 (21:43 +0200)]
parser: bool -> GateOr.

4 years agoparser: better recovery for || in inner pats.
Mazdak Farrokhzad [Mon, 19 Aug 2019 00:40:24 +0000 (02:40 +0200)]
parser: better recovery for || in inner pats.

4 years agoor-patterns: harden feature gating tests.
Mazdak Farrokhzad [Sun, 18 Aug 2019 22:19:40 +0000 (00:19 +0200)]
or-patterns: harden feature gating tests.

4 years agomove `feature-gate-or_patterns.*` -> `ui/or-patterns/`
Mazdak Farrokhzad [Sun, 18 Aug 2019 21:57:43 +0000 (23:57 +0200)]
move `feature-gate-or_patterns.*` -> `ui/or-patterns/`

4 years agoor-patterns: add syntactic tests.
Mazdak Farrokhzad [Sun, 18 Aug 2019 21:53:08 +0000 (23:53 +0200)]
or-patterns: add syntactic tests.

4 years agomove `ui/or-pattern-mismatch` -> `ui/or-patterns/`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 21:07:21 +0000 (23:07 +0200)]
move `ui/or-pattern-mismatch` -> `ui/or-patterns/`.

4 years agoparser: drive-by: simplify `parse_arg_general`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 20:57:34 +0000 (22:57 +0200)]
parser: drive-by: simplify `parse_arg_general`.

4 years agoparser: `let` stmts & `for` exprs: allow or-patterns.
Mazdak Farrokhzad [Sun, 18 Aug 2019 20:54:07 +0000 (22:54 +0200)]
parser: `let` stmts & `for` exprs: allow or-patterns.

4 years agoparser: document `parse_pat`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 20:35:53 +0000 (22:35 +0200)]
parser: document `parse_pat`.

4 years agoparser: `parse_pats` -> `parse_top_pat{_unpack}`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 20:04:28 +0000 (22:04 +0200)]
parser: `parse_pats` -> `parse_top_pat{_unpack}`.

4 years agoparser: document `ban_unexpected_or_or`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 16:38:36 +0000 (18:38 +0200)]
parser: document `ban_unexpected_or_or`.

4 years agoparser: move `maybe_recover_unexpected_comma` to a more appropriate place.
Mazdak Farrokhzad [Sun, 18 Aug 2019 16:37:41 +0000 (18:37 +0200)]
parser: move `maybe_recover_unexpected_comma` to a more appropriate place.

4 years agoparser: use `eat_or_separator` for leading vert.
Mazdak Farrokhzad [Sun, 18 Aug 2019 16:34:35 +0000 (18:34 +0200)]
parser: use `eat_or_separator` for leading vert.

4 years agoparser: improve `parse_pat_with_or` docs.
Mazdak Farrokhzad [Sun, 18 Aug 2019 16:15:17 +0000 (18:15 +0200)]
parser: improve `parse_pat_with_or` docs.

4 years agoparser: extract `eat_or_separator`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 16:13:19 +0000 (18:13 +0200)]
parser: extract `eat_or_separator`.

4 years agoparser: integrate `maybe_recover_unexpected_comma` in `parse_pat_with_or`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 15:44:27 +0000 (17:44 +0200)]
parser: integrate `maybe_recover_unexpected_comma` in `parse_pat_with_or`.

4 years agoparser: extract `maybe_recover_unexpected_comma`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 15:11:12 +0000 (17:11 +0200)]
parser: extract `maybe_recover_unexpected_comma`.

4 years agoparser: simplify `parse_pat_with_or`.
Mazdak Farrokhzad [Sun, 18 Aug 2019 14:55:52 +0000 (16:55 +0200)]
parser: simplify `parse_pat_with_or`.

4 years agoparser: `multiple-pattern-typo`: cover more or-pattern places.
Mazdak Farrokhzad [Sun, 18 Aug 2019 14:52:49 +0000 (16:52 +0200)]
parser: `multiple-pattern-typo`: cover more or-pattern places.

4 years agoparser: move `multiple-pattern-typo` -> `or-patterns` directory.
Mazdak Farrokhzad [Sun, 18 Aug 2019 14:45:08 +0000 (16:45 +0200)]
parser: move `multiple-pattern-typo` -> `or-patterns` directory.

4 years agoparser: improve or-patterns recovery.
Mazdak Farrokhzad [Sun, 18 Aug 2019 14:35:19 +0000 (16:35 +0200)]
parser: improve or-patterns recovery.

4 years agoparser: refactor `parse_pat_with_or` + use it in [p0, p1, ..] pats.
Mazdak Farrokhzad [Sun, 18 Aug 2019 13:45:44 +0000 (15:45 +0200)]
parser: refactor `parse_pat_with_or` + use it in [p0, p1, ..] pats.