rust/crates/syntax/test_data/parser/fragments/stmt/ok
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
..
0000_expr_block.rast internal: more reasonable grammar for blocks 2021-09-26 19:16:09 +03:00
0000_expr_block.rs
0000_expr.rast
0000_expr.rs
0000_fn_call.rast
0000_fn_call.rs
0000_let_stmt.rast
0000_let_stmt.rs
0000_macro_let_stmt.rast
0000_macro_let_stmt.rs
0000_macro_unterminated_let_stmt.rast
0000_macro_unterminated_let_stmt.rs
0000_struct_item.rast
0000_struct_item.rs
0000_unterminated_fn_call.rast
0000_unterminated_fn_call.rs
0000_unterminated_let_stmt.rast
0000_unterminated_let_stmt.rs