rust/crates/syntax/test_data/parser/err/0045_item_modifiers.rast

SOURCE_FILE@0..50
  ERROR@0..6
    UNSAFE_KW@0..6 "unsafe"
  WHITESPACE@6..7 " "
  FN@7..24
    ASYNC_KW@7..12 "async"
    WHITESPACE@12..13 " "
    FN_KW@13..15 "fn"
    WHITESPACE@15..16 " "
    NAME@16..19
      IDENT@16..19 "foo"
    PARAM_LIST@19..21
      L_PAREN@19..20 "("
      R_PAREN@20..21 ")"
    WHITESPACE@21..22 " "
    BLOCK_EXPR@22..24
      STMT_LIST@22..24
        L_CURLY@22..23 "{"
        R_CURLY@23..24 "}"
  WHITESPACE@24..25 "\n"
  CONST@25..40
    UNSAFE_KW@25..31 "unsafe"
    WHITESPACE@31..32 " "
    CONST_KW@32..37 "const"
    WHITESPACE@37..38 " "
    ERROR@38..40
      FN_KW@38..40 "fn"
  WHITESPACE@40..41 " "
  MACRO_CALL@41..46
    PATH@41..44
      PATH_SEGMENT@41..44
        NAME_REF@41..44
          IDENT@41..44 "bar"
    TOKEN_TREE@44..46
      L_PAREN@44..45 "("
      R_PAREN@45..46 ")"
  WHITESPACE@46..47 " "
  ERROR@47..49
    L_CURLY@47..48 "{"
    R_CURLY@48..49 "}"
  WHITESPACE@49..50 "\n"
error 6..6: expected existential, fn, trait or impl
error 38..38: expected a name
error 40..40: missing type for `const` or `static`
error 40..40: expected SEMICOLON
error 44..44: expected BANG
error 46..46: expected SEMICOLON
error 47..47: expected an item
Convert tests to text-size 2020-04-24 16:51:02 -05:00			`SOURCE_FILE@0..50`
			`ERROR@0..6`
			`UNSAFE_KW@0..6 "unsafe"`
			`WHITESPACE@6..7 " "`
Rename FnDef -> Fn 2020-07-30 07:51:08 -05:00			`FN@7..24`
Convert tests to text-size 2020-04-24 16:51:02 -05:00			`ASYNC_KW@7..12 "async"`
			`WHITESPACE@12..13 " "`
			`FN_KW@13..15 "fn"`
			`WHITESPACE@15..16 " "`
			`NAME@16..19`
			`IDENT@16..19 "foo"`
			`PARAM_LIST@19..21`
			`L_PAREN@19..20 "("`
			`R_PAREN@20..21 ")"`
			`WHITESPACE@21..22 " "`
			`BLOCK_EXPR@22..24`
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 04:12:57 -05:00			`STMT_LIST@22..24`
			`L_CURLY@22..23 "{"`
			`R_CURLY@23..24 "}"`
Convert tests to text-size 2020-04-24 16:51:02 -05:00			`WHITESPACE@24..25 "\n"`
feat: improve parser error recovery for function parameters 2021-07-17 14:41:04 -05:00			`CONST@25..40`
Convert tests to text-size 2020-04-24 16:51:02 -05:00			`UNSAFE_KW@25..31 "unsafe"`
Parse default unsafe & default const 2020-06-03 14:21:47 -05:00			`WHITESPACE@31..32 " "`
Convert tests to text-size 2020-04-24 16:51:02 -05:00			`CONST_KW@32..37 "const"`
			`WHITESPACE@37..38 " "`
Parse default unsafe & default const 2020-06-03 14:21:47 -05:00			`ERROR@38..40`
			`FN_KW@38..40 "fn"`
feat: improve parser error recovery for function parameters 2021-07-17 14:41:04 -05:00			`WHITESPACE@40..41 " "`
			`MACRO_CALL@41..46`
			`PATH@41..44`
			`PATH_SEGMENT@41..44`
			`NAME_REF@41..44`
			`IDENT@41..44 "bar"`
			`TOKEN_TREE@44..46`
			`L_PAREN@44..45 "("`
			`R_PAREN@45..46 ")"`
Parse default unsafe & default const 2020-06-03 14:21:47 -05:00			`WHITESPACE@46..47 " "`
			`ERROR@47..49`
			`L_CURLY@47..48 "{"`
			`R_CURLY@48..49 "}"`
Convert tests to text-size 2020-04-24 16:51:02 -05:00			`WHITESPACE@49..50 "\n"`
			`error 6..6: expected existential, fn, trait or impl`
Parse default unsafe & default const 2020-06-03 14:21:47 -05:00			`error 38..38: expected a name`
feat: improve parser error recovery for function parameters 2021-07-17 14:41:04 -05:00			error 40..40: missing type for `const` or `static`
			`error 40..40: expected SEMICOLON`
			`error 44..44: expected BANG`
Parse default unsafe & default const 2020-06-03 14:21:47 -05:00			`error 46..46: expected SEMICOLON`
			`error 47..47: expected an item`