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4012 commits

Author SHA1 Message Date
Aleksey Kladov
914e1f4564 glue tokens when building token stream 2019-08-19 21:59:33 +03:00
Aleksey Kladov
8b932dfda7 remove composite tokens support from the lexer 2019-08-19 21:59:09 +03:00
bors
ef1ecbefb8 Auto merge of #62948 - matklad:failable-file-loading, r=petrochenkov 
Normalize newlines when loading files

Fixes #62865
 2019-08-18 04:37:01 +00:00
Dan Robertson
1870537f27
initial implementation of or-pattern parsing 
Initial implementation of parsing or-patterns e.g., `Some(Foo | Bar)`.
This is a partial implementation of RFC 2535.
 2019-08-17 15:55:40 +00:00
Mazdak Farrokhzad
4087fc583e Feature gate 'yield ?' pre-expansion. 2019-08-16 19:24:15 +02:00
Vadim Petrochenkov
136db2235a hygiene: ExpnInfo -> ExpnData 
For naming consistency with everything else in this area
 2019-08-15 20:41:45 +03:00
Vadim Petrochenkov
74190a5e1c syntax_pos: Remove the duplicate global edition 
It was introduced to avoid going through `hygiene_data`, but now it's read only once, when `ParseSess` is created, so going through a lock is ok.
 2019-08-15 20:41:45 +03:00
Vadim Petrochenkov
73dee258c1 hygiene: Remove Options from functions returning ExpnInfo 
The expansion info is not optional and should always exist
 2019-08-15 20:39:27 +03:00
Vadim Petrochenkov
6cb28b6617 Ident::with_empty_ctxt -> Ident::with_dummy_span 
`Ident` has had a full span rather than just a `SyntaxContext` for a long time now.
 2019-08-15 20:39:26 +03:00
Vadim Petrochenkov
67d6ce4206 syntax_pos: NO_EXPANSION/SyntaxContext::empty() -> SyntaxContext::root() 
For consistency with `ExpnId::root`.

Also introduce a helper `Span::with_root_ctxt` for creating spans with `SyntaxContext::root()` context
 2019-08-15 20:38:12 +03:00
Vadim Petrochenkov
dfcbe75900 syntax_pos: Introduce a helper for checking whether a span comes from expansion 2019-08-15 20:38:12 +03:00
Vadim Petrochenkov
a6182711ef Remove Spanned from {ast,hir}::FieldPat 2019-08-15 12:31:50 +03:00
Vadim Petrochenkov
433b1e36e1 Remove Spanned from ast::Mac 2019-08-15 11:45:28 +03:00
Vadim Petrochenkov
73d2da0894 Remove Spanned from mk_name_value_item_str and expr_to_spanned_string 2019-08-15 11:44:22 +03:00
Mazdak Farrokhzad
ad44d42750
Rollup merge of #63543 - c410-f3r:variant, r=c410-f3r 
Merge Variant and Variant_

Extracted from #63468.
 2019-08-14 22:56:29 +02:00
Mazdak Farrokhzad
d4ecc6f5c0
Rollup merge of #63542 - c410-f3r:node_ids, r=petrochenkov 
Add NodeId for Arm, Field and FieldPat

Extracted from #63468
 2019-08-14 22:56:28 +02:00
Mazdak Farrokhzad
aaeff01446
Rollup merge of #63490 - Centril:cleanup-pat-parser, r=petrochenkov 
libsyntax: cleanup and refactor `pat.rs`

A smaller refactoring & cleanup of `pat.rs` (best read commit by commit).

r? @petrochenkov
 2019-08-14 22:56:21 +02:00
Mazdak Farrokhzad
7178cf5f97
Rollup merge of #62984 - nathanwhit:extra_semi_lint, r=varkor 
Add lint for excess trailing semicolons

Closes #60876.
A caveat (not necessarily a negative, but something to consider) with this implementation is that excess semicolons after return/continue/break now also cause an 'unreachable statement' warning.

For the following example:
```
fn main() {
    extra_semis();
}
fn extra_semis() -> i32 {
    let mut sum = 0;;;
    for i in 0..10 {
        if i == 5 {
            continue;;
        } else if i == 9 {
            break;;
        } else {
            sum += i;;
        }
    }
    return sum;;
}
```
The output is:
```
warning: unnecessary trailing semicolons
 --> src/main.rs:5:21
  |
5 |     let mut sum = 0;;;
  |                     ^^ help: remove these semicolons
  |
  = note: `#[warn(redundant_semicolon)]` on by default

warning: unnecessary trailing semicolon
 --> src/main.rs:8:22
  |
8 |             continue;;
  |                      ^ help: remove this semicolon

warning: unnecessary trailing semicolon
  --> src/main.rs:10:19
   |
10 |             break;;
   |                   ^ help: remove this semicolon

warning: unnecessary trailing semicolon
  --> src/main.rs:12:22
   |
12 |             sum += i;;
   |                      ^ help: remove this semicolon

warning: unnecessary trailing semicolon
  --> src/main.rs:15:16
   |
15 |     return sum;;
   |                ^ help: remove this semicolon

warning: unreachable statement
 --> src/main.rs:8:22
  |
8 |             continue;;
  |                      ^
  |
  = note: `#[warn(unreachable_code)]` on by default

warning: unreachable statement
  --> src/main.rs:10:19
   |
10 |             break;;
   |                   ^

warning: unreachable statement
  --> src/main.rs:15:16
   |
15 |     return sum;;
   |                ^

```
 2019-08-14 22:56:18 +02:00
Caio
6a42b0b28d Merge Variant and Variant_ 2019-08-14 14:47:01 -03:00
Aleksey Kladov
911398b96c remove special handling of \r\n from the lexer 2019-08-14 16:38:40 +03:00
Mazdak Farrokhzad
a8bb3756b6
Rollup merge of #63530 - ehuss:typo-statemement, r=centril 
Fix typo in error message.
 2019-08-14 04:18:57 +02:00
Mazdak Farrokhzad
c824839471
Rollup merge of #63475 - iluuu1994:issue-62632, r=Centril 
Bring back suggestion for splitting `<-` into `< -`

Closes #62632
 2019-08-14 04:18:42 +02:00
Caio
9348af8396 Add NodeId for Arm, Field and FieldPat 2019-08-13 22:42:10 -03:00
Eric Huss
643ddfaaa8
Apply Centril's suggestion 
Co-Authored-By: Mazdak Farrokhzad <twingoow@gmail.com>
 2019-08-13 15:09:11 -07:00
Eric Huss
ea1a9a0e2b Fix typo in error message. 2019-08-13 11:21:09 -07:00
nathanwhit
71415ef9bd Parse excess semicolons as empty stmts for linting 2019-08-12 10:14:07 -04:00
Eduard-Mihai Burtescu
34dcca20e5 syntax: account for CVarArgs being in the argument list. 2019-08-12 15:28:10 +03:00
Mazdak Farrokhzad
c8fc4c106c extract parse_pat_{tuple_}struct + recover_one_fewer_dotdot 2019-08-12 12:50:44 +02:00
Mazdak Farrokhzad
ddf734deb2 extract fatal_unexpected_non_pat 2019-08-12 12:50:44 +02:00
Mazdak Farrokhzad
37f37a5df1 parser/pat: minor misc cleanup 2019-08-12 12:50:44 +02:00
Mazdak Farrokhzad
49740b792d extract parse_pat_range_starting_with_lit 2019-08-12 12:50:44 +02:00
Mazdak Farrokhzad
e6f980f9b8 extract parse_pat_range_starting_with_path 2019-08-12 12:50:44 +02:00
Mazdak Farrokhzad
e32bd69d0f extract parse_pat_mac_invoc 2019-08-12 12:50:44 +02:00
Mazdak Farrokhzad
231da7e044 extract ban_pat_range_if_ambiguous 2019-08-12 12:50:44 +02:00
Mazdak Farrokhzad
3b651330e0 extract recover_pat_ident_mut_first 2019-08-12 12:50:44 +02:00
Ilija Tovilo
91af5c2daf
Bring back suggestion for splitting <- into < - 
Closes #62632
 2019-08-12 10:46:34 +02:00
Mazdak Farrokhzad
c69b3ede8a extract parse_pat_tuple_or_parens 2019-08-12 09:28:49 +02:00
Mazdak Farrokhzad
90793c0f12 extract parse_pat_deref 2019-08-12 09:28:49 +02:00
Mazdak Farrokhzad
a4af9d1ac2 parse_pat_with_range_pat: remove unnecessary assignments. 2019-08-12 09:28:49 +02:00
Mazdak Farrokhzad
bcfcbfc923 parser: {check,expect}_lifetime into ty.rs 2019-08-11 20:46:34 +02:00
Mazdak Farrokhzad
385d07f359 parser: move into generics.rs 2019-08-11 20:44:09 +02:00
Mazdak Farrokhzad
d6d93b3d82 parser: move into stmt.rs 2019-08-11 20:32:29 +02:00
Mazdak Farrokhzad
28db7c5968 parser: move parse_fn_block_decl into expr.rs 2019-08-11 20:04:09 +02:00
Mazdak Farrokhzad
848ec4aa3c parser: move parse_ident_or_underscore into item.rs 2019-08-11 20:00:38 +02:00
Mazdak Farrokhzad
3dbfbafe3e parser: split into {ty, path}.rs 2019-08-11 19:59:27 +02:00
Mazdak Farrokhzad
e81347c368 parser: split into {item,module}.rs 2019-08-11 18:34:42 +02:00
Mazdak Farrokhzad
e742de2569 parser: split into pat.rs 2019-08-11 15:24:37 +02:00
Mazdak Farrokhzad
81e6b5094e parser: split into expr.rs 2019-08-11 13:14:30 +02:00
Esteban Küber
b7f7756566 Recover parser from foo(_, _) 2019-08-09 07:18:05 -07:00
Aleksey Kladov
58ac81a60f add unknown token 2019-08-05 13:15:11 +03:00