rust/tests/ui/frontmatter/frontmatter-whitespace-1.rs

  ---
//~^ ERROR: invalid preceding whitespace for frontmatter opening
//~^^ ERROR: unclosed frontmatter
  ---

#![feature(frontmatter)]

// check that whitespaces should not precede the frontmatter opening or close.

fn main() {}
Implement RFC 3503: frontmatters Supercedes #137193 2025-04-12 15:53:46 +00:00			`---`
			`//~^ ERROR: invalid preceding whitespace for frontmatter opening`
fix(lexer): Don't require frontmatters to be escaped with indented fences 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. 2025-08-22 10:46:47 -05:00			`//~^^ ERROR: unclosed frontmatter`
Implement RFC 3503: frontmatters Supercedes #137193 2025-04-12 15:53:46 +00:00			`---`

			`#![feature(frontmatter)]`

			`// check that whitespaces should not precede the frontmatter opening or close.`

			`fn main() {}`