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142e25e356
The RFC only limits hyphens at the beginning of lines and not if they are indented or embedded in other content. Sticking to that approach was confirmed by the T-lang liason at https://github.com/rust-lang/rust/issues/141367#issuecomment-3202217544 There is a regression in error message quality which I'm leaving for someone if they feel this needs improving.
15 lines
338 B
Rust
15 lines
338 B
Rust
---cargo
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//~^ ERROR: unclosed frontmatter
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//@ compile-flags: --crate-type lib
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#![feature(frontmatter)]
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fn foo(x: i32) -> i32 {
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---x
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//~^ WARNING: use of a double negation [double_negations]
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}
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// this test is for the weird case that valid Rust code can have three dashes
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// within them and get treated as a frontmatter close.
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