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feat: Support for auto trait #278

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feat: Support for auto trait #278

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3 changes: 2 additions & 1 deletion grammar.js
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Original file line number Diff line number Diff line change
Expand Up @@ -238,7 +238,7 @@ module.exports = grammar({
alias(choice(...primitiveTypes), $.primitive_type),
prec.right(repeat1(choice(...TOKEN_TREE_NON_SPECIAL_PUNCTUATION))),
'\'',
'as', 'async', 'await', 'break', 'const', 'continue', 'default', 'enum', 'fn', 'for', 'gen',
'as', 'async', 'auto', 'await', 'break', 'const', 'continue', 'default', 'enum', 'fn', 'for', 'gen',
'if', 'impl', 'let', 'loop', 'match', 'mod', 'pub', 'return', 'static', 'struct', 'trait',
'type', 'union', 'unsafe', 'use', 'where', 'while',
),
Expand Down Expand Up @@ -509,6 +509,7 @@ module.exports = grammar({
trait_item: $ => seq(
optional($.visibility_modifier),
optional('unsafe'),
optional('auto'),
'trait',
field('name', $._type_identifier),
field('type_parameters', optional($.type_parameters)),
Expand Down
7 changes: 6 additions & 1 deletion test/corpus/declarations.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -1706,7 +1706,7 @@ unsafe impl Trait for dyn (::std::any::Any) + Send { }
(scoped_identifier
(identifier))
(identifier))
(type_identifier))))
(type_identifier))))
(type_identifier))
(declaration_list)))

Expand Down Expand Up @@ -1786,6 +1786,8 @@ pub trait Item: Clone + Eq + fmt::Debug {

unsafe trait Foo { }

unsafe auto trait Bar { }

--------------------------------------------------------------------------------

(source_file
Expand All @@ -1807,6 +1809,9 @@ unsafe trait Foo { }
(scoped_type_identifier
(identifier)
(type_identifier)))))
(trait_item
(type_identifier)
(declaration_list))
(trait_item
(type_identifier)
(declaration_list)))
Expand Down