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Rollup merge of #140035 - fee1-dead-contrib:push-oszwkkvmpkks, r=jieyouxu,wesleywiser

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Implement RFC 3503: frontmatters

Tracking issue: #136889

Supercedes #137193. This implements [RFC 3503](https://github.com/rust-lang/rfcs/blob/master/text/3503-frontmatter.md).

This might break rust-analyzer. Will look into how to fix that.

Suggestions welcome for how to improve diagnostics.
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Stuart Cook 2025-05-06 16:28:39 +10:00 • committed by GitHub
commit 9f4e2cc51d
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1
crates/syntax/rust.ungram
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@ -133,6 +133,7 @@ Meta =
SourceFile =
'#shebang'?
'#frontmatter'?
Attr*
Item*

4
crates/syntax/src/ast/generated/nodes.rs
View file

@ -1524,6 +1524,10 @@ impl ast::HasAttrs for SourceFile {}
impl ast::HasDocComments for SourceFile {}
impl ast::HasModuleItem for SourceFile {}
impl SourceFile {
#[inline]
pub fn frontmatter_token(&self) -> Option<SyntaxToken> {
support::token(&self.syntax, T![frontmatter])
}
#[inline]
pub fn shebang_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![shebang]) }
}