Commit graph

22 commits

Author SHA1 Message Date
Aleksey Kladov
2bf81922f7 internal: more reasonable grammar for blocks
Consider these expples

        { 92 }
  async { 92 }
    'a: { 92 }
   #[a] { 92 }

Previously the tree for them were

  BLOCK_EXPR
    { ... }

  EFFECT_EXPR
    async
    BLOCK_EXPR
      { ... }

  EFFECT_EXPR
    'a:
    BLOCK_EXPR
      { ... }

  BLOCK_EXPR
    #[a]
    { ... }

As you see, it gets progressively worse :) The last two items are
especially odd. The last one even violates the balanced curleys
invariant we have (#10357) The new approach is to say that the stuff in
`{}` is stmt_list, and the block is stmt_list + optional modifiers

  BLOCK_EXPR
    STMT_LIST
      { ... }

  BLOCK_EXPR
    async
    STMT_LIST
      { ... }

  BLOCK_EXPR
    'a:
    STMT_LIST
      { ... }

  BLOCK_EXPR
    #[a]
    STMT_LIST
      { ... }
2021-09-26 19:16:09 +03:00
Aleksey Kladov
56964c9bd3 feat: allow attributes on all expressions
Attrs are syntactically valid on any expression, even if they are not
allowed semantically everywhere yet.
2021-09-25 22:19:27 +03:00
Aleksey Kladov
3474e3b3b1 intenral: more local tests for statics 2021-09-18 01:02:43 +03:00
Aleksey Kladov
77e8421d0f internal: more local parsing tests for macros 2021-09-17 22:21:57 +03:00
Aleksey Kladov
55078c81e0 internal: more local test for mod item 2021-09-17 21:53:24 +03:00
Lukas Wirth
4de447b293 Attach comma token to MATCH_ARM instead of MATCH_ARM_LIST 2021-07-29 23:02:52 +02:00
Lukas Wirth
02d25ab60d Fix parser tests for 1.53 2021-06-17 18:09:44 +02:00
Aleksey Kladov
067e97d149 internal: enforce no #[ignore] and no #[should_panic] 2021-06-15 16:54:43 +03:00
Jonas Schievink
1d6eef1350 Update ungrammar 2021-06-11 18:34:30 +02:00
Lukas Wirth
4b5b54279a Attach comments to ast::Impl 2021-05-15 17:32:28 +02:00
Aleksey Kladov
5f89a60f1a fix: false positive about inner attrs in docs
closes #8541
2021-04-19 17:11:49 +03:00
Jonas Schievink
022a0f061e Correctly parse attributes on fn parameters 2021-03-17 18:28:27 +01:00
Lukas Wirth
70d43c3faf Add validation for mutable const items 2021-01-24 02:17:41 +01:00
Lukas Wirth
98718e0544 Wrap remaining self/super/crate in Name{Ref} 2021-01-15 22:18:43 +01:00
Lukas Wirth
cb863390f2 Handle self/super/crate in PathSegment as NameRef 2021-01-15 19:21:23 +01:00
Lukas Wirth
4be9ed675e Properly attach attributes to Param instead of parent ParamList 2020-12-20 20:30:18 +01:00
Lukas Wirth
dd496223f5 Node-ify lifetimes 2020-12-16 14:16:09 +01:00
Jonas Schievink
c1cb595382 Move to upstream macro_rules! model 2020-12-15 15:37:37 +01:00
David Tolnay
8a11da40a7
Parse unsafe extern block 2020-11-22 20:44:56 -08:00
Aleksey Kladov
a27186636d Fix attachment of inner doc comments 2020-11-12 12:09:12 +01:00
Lukas Wirth
6f38552edb Add validation check for ambiguous trait objects 2020-10-06 23:52:00 +02:00
Aleksey Kladov
a1c187eef3 Rename ra_syntax -> syntax 2020-08-12 18:30:53 +02:00