Commit Graph

292 Commits

Author SHA1 Message Date
David Tolnay
596e33ac32
Delete duplicated helpers from HIR printer 2021-12-05 12:45:51 -08:00
David Tolnay
33c29a3ad3
Pretty print async block without redundant space 2021-12-05 11:32:00 -08:00
Matthias Krüger
a8f8f746fc
Rollup merge of #91437 - dtolnay:emptybrace, r=nagisa
Pretty print empty blocks as {}

**Example:**

```rust
macro_rules! p {
    ($e:expr) => {
        println!("{}", stringify!($e));
    };
    ($i:item) => {
        println!("{}", stringify!($i));
    };
}

fn main() {
    p!(if true {});
    p!(struct S {});
}
```

**Before:**

```console
if true { }
struct S {
}
```

**After:**

```console
if true {}
struct S {}
```

This affects [`dbg!`](https://doc.rust-lang.org/std/macro.dbg.html), as well as ecosystem uses of stringify such as in [`anyhow::ensure!`](https://docs.rs/anyhow/1/anyhow/macro.ensure.html). Printing a `{ }` in today's heavily rustfmt'd world comes out looking jarring/sloppy.
2021-12-05 15:04:20 +01:00
Amanieu d'Antras
940b2eabad Add initial AST and MIR support for unwinding from inline assembly 2021-12-03 23:51:46 +01:00
David Tolnay
b516a8c5cb
Pretty print empty blocks as {} 2021-12-01 13:50:13 -08:00
Vadim Petrochenkov
141c6cc78e expand: Turn ast::Crate into a first class expansion target
And stop creating a fake `mod` item for the crate root when expanding a crate.
2021-11-28 15:48:55 +08:00
asquared31415
b233d3b5da Add support for specifying multiple clobber_abi in asm!
Allow multiple clobber_abi in asm

Update docs
Fix aarch64 test
Combine abis
Emit duplicate ABI error, empty ABI list error
multiple clobber_abi
2021-11-10 01:06:03 -05:00
bors
46b8e7488e Auto merge of #90668 - matthiaskrgr:clippy_nov7, r=jyn514
more clippy fixes
2021-11-07 20:04:54 +00:00
Matthias Krüger
5c454551da more clippy fixes 2021-11-07 16:59:05 +01:00
Vadim Petrochenkov
2834f57c45 ast: Fix naming conventions in AST structures
TraitKind -> Trait
TyAliasKind -> TyAlias
ImplKind -> Impl
FnKind -> Fn

All `*Kind`s in AST are supposed to be enums.

Tuple structs are converted to braced structs for the types above, and fields are reordered in syntactic order.

Also, mutable AST visitor now correctly visit spans in defaultness, unsafety, impl polarity and constness.
2021-11-07 21:38:17 +08:00
r00ster91
3c1d55422a Some "parenthesis" and "parentheses" fixes 2021-10-17 12:04:01 +02:00
Mark Rousskov
c746be2219 Migrate to 2021 2021-09-20 22:21:42 -04:00
Felix S. Klock II
91feb76d13 Revert "Implement Anonymous{Struct, Union} in the AST"
This reverts commit 059b68dd67.

Note that this was manually adjusted to retain some of the refactoring
introduced by commit 059b68dd67, so that it could
likewise retain the correction introduced in commit
5b4bc05fa5
2021-09-09 09:14:17 -04:00
Felix S. Klock II
5560f6d90a Revert "Fix ast expanded printing for anonymous types"
This reverts commit 5b4bc05fa5.
2021-09-09 09:14:16 -04:00
Cameron Steffen
89d2600d01 Add let-else to AST 2021-08-30 20:17:45 -05:00
bors
ae0b03bc6b Auto merge of #88262 - klensy:pprust-cow, r=nagisa
Cow'ify some pprust methods

Reduce number of potential needless de/allocations by using `Cow<'static, str>` instead of explicit `String` type.
2021-08-29 17:46:29 +00:00
inquisitivecrystal
8c62fa0575 Treat macros as HIR items 2021-08-28 00:16:34 -07:00
klensy
c565339c37 Convert some functions to return Cow<'static,str> instead of String to reduce potential reallocations 2021-08-25 00:24:44 +03:00
Caio
6aa9937a76 Introduce hir::ExprKind::Let - Take 2 2021-08-15 16:18:26 -03:00
Amanieu d'Antras
3fd463a5ca Add support for clobber_abi to asm! 2021-08-12 12:43:11 +01:00
bors
b53a93db2d Auto merge of #87535 - lf-:authors, r=Mark-Simulacrum
rfc3052 followup: Remove authors field from Cargo manifests

Since RFC 3052 soft deprecated the authors field, hiding it from
crates.io, docs.rs, and making Cargo not add it by default, and it is
not generally up to date/useful information for contributors, we may as well
remove it from crates in this repo.
2021-08-02 05:49:17 +00:00
Jade
3cf820e17d rfc3052: Remove authors field from Cargo manifests
Since RFC 3052 soft deprecated the authors field anyway, hiding it from
crates.io, docs.rs, and making Cargo not add it by default, and it is
not generally up to date/useful information, we should remove it from
crates in this repo.
2021-07-29 14:56:05 -07:00
Matthias Krüger
1c129f7b97 use vec![] macro to create Vector with first item inside instead of pushing to an empty vec![]
slightly reduces code bloat
2021-07-25 12:19:33 +02:00
Guillaume Gomez
a2654fb64c Rework SESSION_GLOBALS API to prevent overwriting it 2021-07-08 16:16:28 +02:00
Noah Lev
7ffec7028a rustc_ast_pretty: Don't print space after $
For example, this code:

    $arg:expr

used to be pretty-printed as:

    $ arg : expr

but is now pretty-printed as:

    $arg : expr
2021-07-03 16:35:18 -07:00
Yuki Okushi
de93434cf0
Rollup merge of #86358 - klensy:pp-loop, r=Mark-Simulacrum
fix pretty print for `loop`
2021-06-29 00:26:55 +09:00
bors
e6b4c252ea Auto merge of #86599 - Amanieu:asm_raw, r=nagisa
Add a "raw" option for asm! which ignores format string specifiers

This is useful when including raw assembly snippets using `include_str!`.
2021-06-25 20:44:28 +00:00
Amanieu d'Antras
d0443bb7c2 Add a "raw" option for asm! which ignores format string specifiers 2021-06-24 23:42:15 +01:00
klensy
ac72773215 fix pretty print for loop in mir and hir 2021-06-23 11:49:08 +03:00
bors
6a758ea7e4 Auto merge of #85193 - pnkfelix:readd-support-for-inner-attrs-within-match, r=nikomatsakis
Re-add support for parsing (and pretty-printing) inner-attributes in match body

Re-add support for parsing (and pretty-printing) inner-attributes within body of a `match`.

In other words, we can do `match EXPR { #![inner_attr] ARM_1 ARM_2 ... }` again.

I believe this unbreaks the only four crates that crater flagged as broken by PR #83312.

(I am putting this up so that the lang-team can check it out and decide whether it changes their mind about what to do regarding PR #83312.)
2021-06-22 21:17:12 +00:00
Yuki Okushi
4f8e0ebcc5
Use AttrVec for Arm, FieldDef, and Variant 2021-06-17 08:04:54 +09:00
Ryan Levick
6936349233 Add support for using qualified paths with structs in expression and pattern
position.
2021-06-10 13:18:41 +02:00
Pietro Albini
9e22b844dd remove cfg(bootstrap) 2021-05-24 11:07:48 -04:00
jedel1043
5b4bc05fa5 Fix ast expanded printing for anonymous types 2021-05-24 00:03:59 -05:00
jedel1043
059b68dd67 Implement Anonymous{Struct, Union} in the AST
Add unnamed_fields feature gate and gate unnamed fields on parsing
2021-05-16 09:49:16 -05:00
Aaron Hill
357c013ff5
Remove some unncessary spaces from pretty-printed tokenstream output
In addition to making the output look nicer for all crates, this also
aligns the pretty-printing output with what the `rental` crate expects.
This will allow us to eventually disable a backwards-compat hack in a
follow-up PR.
2021-05-15 12:05:03 -04:00
Amanieu d'Antras
5918ee4317 Add support for const operands and options to global_asm!
On x86, the default syntax is also switched to Intel to match asm!
2021-05-13 22:31:57 +01:00
Felix S. Klock II
75d6293128 Re-add support for parsing (and pretty-printing) inner-attributes within body of a match.
In other words, we can do `match EXPR { #![inner_attr] ARM_1 ARM_2 ... }` again.

I believe this unbreaks the only four crates that crater flagged as broken by PR 83312.

(I am putting this up so that the lang-team can check it out and decide whether
it changes their mind about what to do regarding PR 83312.)
2021-05-11 15:18:09 -04:00
Vadim Petrochenkov
1443c7646d parser: Remove support for inner attributes on non-block expressions 2021-05-03 13:33:53 +03:00
Amanieu d'Antras
32be124e30 Use AnonConst for asm! constants 2021-04-06 12:35:41 +01:00
Joshua Nelson
441dc3640a Remove (lots of) dead code
Found with https://github.com/est31/warnalyzer.

Dubious changes:
- Is anyone else using rustc_apfloat? I feel weird completely deleting
  x87 support.
- Maybe some of the dead code in rustc_data_structures, in case someone
  wants to use it in the future?
- Don't change rustc_serialize

  I plan to scrap most of the json module in the near future (see
  https://github.com/rust-lang/compiler-team/issues/418) and fixing the
  tests needed more work than I expected.

TODO: check if any of the comments on the deleted code should be kept.
2021-03-27 22:16:33 -04:00
kadmin
7116bb5c33 Update with comments 2021-03-23 17:16:20 +00:00
kadmin
ea2af70466 Update with comments
A bunch of nits fixed, and a new test for pretty printing the AST.
2021-03-23 17:16:20 +00:00
varkor
8ef81388e2 Some refactoring 2021-03-23 17:16:20 +00:00
kadmin
e4e5db4e42 Add has_default to GenericParamDefKind::Const
This currently creates a field which is always false on GenericParamDefKind for future use when
consts are permitted to have defaults

Update const_generics:default locations

Previously just ignored them, now actually do something about them.

Fix using type check instead of value

Add parsing

This adds all the necessary changes to lower const-generics defaults from parsing.

Change P<Expr> to AnonConst

This matches the arguments passed to instantiations of const generics, and makes it specific to
just anonymous constants.

Attempt to fix lowering bugs
2021-03-23 17:16:20 +00:00
mark
db5629adcb stabilize or_patterns 2021-03-19 19:45:32 -05:00
Vadim Petrochenkov
d1522b39dd ast: Reduce size of ExprKind by boxing fields of ExprKind::Struct 2021-03-16 11:41:24 +03:00
Vadim Petrochenkov
b25d3ba781 ast/hir: Rename field-related structures
StructField -> FieldDef ("field definition")
Field -> ExprField ("expression field", not "field expression")
FieldPat -> PatField ("pattern field", not "field pattern")

Also rename visiting and other methods working on them.
2021-03-16 11:41:24 +03:00
Dylan DPC
30f39fee9d
Rollup merge of #82238 - petrochenkov:nocratemod, r=Aaron1011
ast: Keep expansion status for out-of-line module items

I.e. whether a module `mod foo;` is already loaded from a file or not.
This is a pre-requisite to correctly treating inner attributes on such modules (https://github.com/rust-lang/rust/issues/81661).

With this change AST structures for `mod` items diverge even more for AST structure for the crate root, which previously used `ast::Mod`.
Therefore this PR removes `ast::Mod` from `ast::Crate` in the first commit, these two things are sufficiently different from each other, at least at syntactic level.
Customization points for visiting a "`mod` item or crate root" were also removed from AST visitors (`fn visit_mod`).
`ast::Mod` itself was refactored away in the second commit in favor of `ItemKind::Mod(Unsafe, ModKind)`.
2021-02-19 02:49:08 +01:00
Dylan DPC
66211f6657
Rollup merge of #82066 - matthewjasper:trait-ref-fix, r=jackh726
Ensure valid TraitRefs are created for GATs

This fixes `ProjectionTy::trait_ref` to use the correct substs. Places that need all of the substs have been updated to not use `trait_ref`.

r? ````@jackh726````
2021-02-18 16:57:34 +01:00
Vadim Petrochenkov
4a88165124 ast: Keep expansion status for out-of-line module items
Also remove `ast::Mod` which is mostly redundant now
2021-02-18 13:07:49 +03:00
Vadim Petrochenkov
eb65f15c78 ast: Stop using Mod in Crate
Crate root is sufficiently different from `mod` items, at least at syntactic level.

Also remove customization point for "`mod` item or crate root" from AST visitors.
2021-02-18 13:07:49 +03:00
Matthias Krüger
4390a61b64 avoid full-slicing slices
If we already have a slice, there is no need to get another full-range slice from that, just use the original.
clippy::redundant_slicing
2021-02-16 00:31:11 +01:00
Matthew Jasper
dfa581ff87 Fix pretty printing of generic associated type constraints 2021-02-13 19:29:55 +00:00
Eric Huss
cadffa74df Fix pretty printer macro_rules with semicolon. 2021-02-08 12:08:27 -08:00
Dániel Buga
b87e1ecdf0 Box the biggest ast::ItemKind variants 2021-02-01 09:23:39 +01:00
bjorn3
2bde7d21cc Remove unused dependency 2021-01-23 10:30:38 +01:00
Vadim Petrochenkov
71cd6f42a6 ast: Remove some indirection layers from values in key-value attributes 2021-01-09 21:50:39 +03:00
Vadim Petrochenkov
f915e3e5cf rustc_ast_pretty: Remove PrintState::insert_extra_parens
It's no longer necessary after #79472
2021-01-08 00:43:38 +03:00
Rémy Rakic
ea0f6396aa const_generics_defaults: don't use todo
So that at least it won't ICE for users whether or not they enable the gate. For developers the FIXMEs are enough.
2021-01-01 22:35:56 +01:00
Julian Knodt
61f33bfd29 first pass at default values for const generics
- Adds optional default values to const generic parameters in the AST
  and HIR
- Parses these optional default values
- Adds a `const_generics_defaults` feature gate
2021-01-01 10:55:10 +01:00
Mara Bos
9e8edc8c22
Rollup merge of #80495 - jyn514:rename-empty, r=petrochenkov
Rename kw::Invalid -> kw::Empty

See https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Is.20there.20a.20symbol.20for.20the.20empty.20string.3F/near/220054471
for context.

r? `@petrochenkov`
2020-12-30 20:56:58 +00:00
Joshua Nelson
edeac1778c Rename kw::Invalid -> kw::Empty
See https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Is.20there.20a.20symbol.20for.20the.20empty.20string.3F/near/220054471
for context.
2020-12-30 09:50:02 -05:00
Camelid
8d5dc8c2f0
Add missing commas to rustc_ast_pretty::pp docs 2020-12-28 14:23:20 -08:00
Thomas Bahn
b05ab18aec Fix pretty printing an AST representing &(mut ident)
`PatKind::Ref(PatKind::Ident(BindingMode::ByValue(Mutability::Mut), ..), ..)`
is an AST representing `&(mut ident)`. It was errorneously printed as
`&mut ident` which reparsed into a syntactically different AST.

This affected help diagnostics in the parser.
2020-12-20 13:11:07 +01:00
Jonas Schievink
f66af28641
Rollup merge of #79016 - fanzier:underscore-expressions, r=petrochenkov
Make `_` an expression, to discard values in destructuring assignments

This is the third and final step towards implementing destructuring assignment (RFC: rust-lang/rfcs#2909, tracking issue: #71126). This PR is the third and final part of #71156, which was split up to allow for easier review.

With this PR, an underscore `_` is parsed as an expression but is allowed *only* on the left-hand side of a destructuring assignment. There it simply discards a value, similarly to the wildcard `_` in patterns. For instance,
```rust
(a, _) = (1, 2)
```
will simply assign 1 to `a` and discard the 2. Note that for consistency,
```
_ = foo
```
is also allowed and equivalent to just `foo`.

Thanks to ````@varkor```` who helped with the implementation, particularly around pre-expansion gating.

r? ````@petrochenkov````
2020-11-15 13:39:48 +01:00
Jonas Schievink
f32191f78f
Rollup merge of #79005 - petrochenkov:noinjected, r=davidtwco
cleanup: Remove `ParseSess::injected_crate_name`

Its only remaining use is in pretty-printing where the necessary information can be easily re-computed.
2020-11-15 13:39:46 +01:00
Dylan DPC
4fcb617cbe
Rollup merge of #78980 - thiolliere:gui-fix-qpath, r=estebank
Fix rustc_ast_pretty print_qpath resulting in invalid macro input

related https://github.com/rust-lang/rust/issues/76874 (third case)

### Issue:

The input for a procedural macro is incorrect, for the rust code:
```rust

mod m {
    pub trait Tr {
        type Ts: super::Tu;
    }
}

trait Tu {
    fn dummy() { }
}

#[may_proc_macro]
fn foo() {
    <T as m::Tr>::Ts::dummy();
}
```
the macro will get the input:
```rust
fn foo() {
    <T as m::Tr>::dummy();
}
```
Thus `Ts` has disappeared.

### Fix:

This is due to invalid pretty print of qpath. This PR fix it.
2020-11-15 03:02:53 +01:00
Fabian Zaiser
8cf3564310 Add underscore expressions for destructuring assignments
Co-authored-by: varkor <github@varkor.com>
2020-11-14 13:53:12 +00:00
Vadim Petrochenkov
8766c0452c cleanup: Remove ParseSess::injected_crate_name 2020-11-13 00:59:57 +03:00
Mara Bos
755dd14e00
Rollup merge of #78836 - fanzier:struct-and-slice-destructuring, r=petrochenkov
Implement destructuring assignment for structs and slices

This is the second step towards implementing destructuring assignment (RFC: rust-lang/rfcs#2909, tracking issue: #71126). This PR is the second part of #71156, which was split up to allow for easier review.

Note that the first PR (#78748) is not merged yet, so it is included as the first commit in this one. I thought this would allow the review to start earlier because I have some time this weekend to respond to reviews. If ``@petrochenkov`` prefers to wait until the first PR is merged, I totally understand, of course.

This PR implements destructuring assignment for (tuple) structs and slices. In order to do this, the following *parser change* was necessary: struct expressions are not required to have a base expression, i.e. `Struct { a: 1, .. }` becomes legal (in order to act like a struct pattern).

Unfortunately, this PR slightly regresses the diagnostics implemented in #77283. However, it is only a missing help message in `src/test/ui/issues/issue-77218.rs`. Other instances of this diagnostic are not affected. Since I don't exactly understand how this help message works and how to fix it yet, I was hoping it's OK to regress this temporarily and fix it in a follow-up PR.

Thanks to ``@varkor`` who helped with the implementation, particularly around the struct rest changes.

r? ``@petrochenkov``
2020-11-12 19:46:09 +01:00
thiolliere
775f1e5acd fix pretty print for qpath 2020-11-12 12:47:25 +01:00
Fabian Zaiser
de84ad95b4 Implement destructuring assignment for structs and slices
Co-authored-by: varkor <github@varkor.com>
2020-11-11 12:10:52 +00:00
Vadim Petrochenkov
12de1e8985 Do not collect tokens for doc comments 2020-11-09 01:47:11 +03:00
Joshua Nelson
57c6ed0c07 Fix even more clippy warnings 2020-10-30 10:13:39 -04:00
Yuki Okushi
439ea4b621
Rollup merge of #77888 - LingMan:ast_pretty_tt_prepend_space, r=jyn514
Simplify a nested bool match

Logically this first eliminates the innermost match by merging the patterns.
Then, in a second step, turns the newly innermost match into a `matches!` call.
2020-10-30 18:00:45 +09:00
LingMan
13f0f49a4e Drop unneeded mut
These parameters don't get modified.
2020-10-20 16:42:51 +02:00
Santiago Pastorino
c3e8d7965c
Parse inline const expressions 2020-10-16 15:15:30 -03:00
LingMan
fcec76bde4 Simplify a nested bool match
Logically this first eliminates the innermost match by merging the patterns.
Then, in a second step, turns the newly innermost match into a `matches!` call.
2020-10-14 06:26:47 +02:00
bors
4ba5068815 Auto merge of #77135 - Aaron1011:pretty-ignore-paren, r=petrochenkov
Refactor AST pretty-printing to allow skipping insertion of extra parens

Fixes #75734
Makes progress towards #43081
Unblocks PR #76130

When pretty-printing an AST node, we may insert additional parenthesis
to ensure that precedence is properly preserved in code we output.
However, the proc macro implementation relies on comparing a
pretty-printed AST node to the captured `TokenStream`. Inserting extra
parenthesis changes the structure of the reparsed `TokenStream`, making
the comparison fail.

This PR refactors the AST pretty-printing code to allow skipping the
insertion of additional parenthesis. Several freestanding methods are
moved to trait methods on `PrintState`, which keep track of an internal
`insert_extra_parens` flag. This flag is normally `true`, but we expose
a public method which allows pretty-printing a nonterminal with
`insert_extra_parens = false`.

To avoid changing the public interface of `rustc_ast_pretty`, the
freestanding `_to_string` methods are changed to delegate to a
newly-crated `State`. The main pretty-printing code is moved to a new
`state` module to ensure that it does not accidentally call any of these
public helper functions (instead, the internal functions with the same
name should be used).
2020-10-14 00:26:50 +00:00
Yuki Okushi
083638cfcf
Rollup merge of #77886 - LingMan:ast_pretty_bool_matches, r=petrochenkov
Replace trivial bool matches with the `matches!` macro

This derives `PartialEq` on one enum (and two structs it contains) to enable the `==` operator for it. If there's some downside to this, I could respin with the `matches!` macro instead.
2020-10-14 06:02:35 +09:00
LingMan
7a23a71e51 Replace trivial bool matches with the matches! macro 2020-10-13 21:29:38 +02:00
LingMan
61e722f331 Use Option::unwrap_or instead of open-coding it 2020-10-13 04:30:17 +02:00
Aaron Hill
ea468f4270
Allow skipping extra paren insertion during AST pretty-printing
Fixes #74616
Makes progress towards #43081
Unblocks PR #76130

When pretty-printing an AST node, we may insert additional parenthesis
to ensure that precedence is properly preserved in code we output.
However, the proc macro implementation relies on comparing a
pretty-printed AST node to the captured `TokenStream`. Inserting extra
parenthesis changes the structure of the reparsed `TokenStream`, making
the comparison fail.

This PR refactors the AST pretty-printing code to allow skipping the
insertion of additional parenthesis. Several freestanding methods are
moved to trait methods on `PrintState`, which keep track of an internal
`insert_extra_parens` flag. This flag is normally `true`, but we expose
a public method which allows pretty-printing a nonterminal with
`insert_extra_parens = false`.

To avoid changing the public interface of `rustc_ast_pretty`, the
freestanding `_to_string` methods are changed to delegate to a
newly-crated `State`. The main pretty-printing code is moved to a new
`state` module to ensure that it does not accidentally call any of these
public helper functions (instead, the internal functions with the same
name should be used).
2020-10-11 12:09:48 -04:00
Aaron Hill
a20ae8901c
Move pprust code to a 'state' submodule 2020-10-11 12:09:48 -04:00
Aaron Hill
fec0479075
Fully integrate token collection for additional AST structs
This commit contains miscellaneous changes that don't fit into any of
the other commits in this PR
2020-09-10 17:58:14 -04:00
Aaron Hill
c1011165e6
Attach TokenStream to ast::Visibility
A `Visibility` does not have outer attributes, so we only capture tokens
when parsing a `macro_rules!` matcher
2020-09-10 17:33:06 -04:00
David Tolnay
fd4dd00dde
Syntactically permit unsafety on mods 2020-09-10 06:56:33 -07:00
bors
b4acb11033 Auto merge of #76170 - matklad:notrivia, r=petrochenkov
Remove trivia tokens

r? @ghost
2020-09-02 03:19:38 +00:00
Aleksey Kladov
5326361fc0 Remove trivia tokens 2020-09-01 11:39:11 +02:00
Aaron Hill
090b16717a
Factor out StmtKind::MacCall fields into MacCallStmt struct
In PR #76130, I add a fourth field, which makes using a tuple variant
somewhat unwieldy.
2020-08-30 18:38:53 -04:00
mark
9e5f7d5631 mv compiler to compiler/ 2020-08-30 18:45:07 +03:00