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Express contracts as part of function header and lower it to the contract lang items

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includes post-developed commit: do not suggest internal-only keywords as corrections to parse failures.

includes post-developed commit: removed tabs that creeped in into rustfmt tool source code.

includes post-developed commit, placating rustfmt self dogfooding.

includes post-developed commit: add backquotes to prevent markdown checking from trying to treat an attr as a markdown hyperlink/

includes post-developed commit: fix lowering to keep contracts from being erroneously inherited by nested bodies (like closures).

Rebase Conflicts:
 - compiler/rustc_parse/src/parser/diagnostics.rs
 - compiler/rustc_parse/src/parser/item.rs
 - compiler/rustc_span/src/hygiene.rs

Remove contracts keywords from diagnostic messages
This commit is contained in:
Celina G. Val 2025-01-08 16:38:25 -08:00
parent 777def87d5
commit 38eff16d0a
27 changed files with 405 additions and 17 deletions
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2
compiler/rustc_ast_passes/src/ast_validation.rs
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@ -917,7 +917,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> {
walk_list!(self, visit_attribute, &item.attrs);
return; // Avoid visiting again.
}
ItemKind::Fn(func @ box Fn { defaultness, generics: _, sig, body }) => {
ItemKind::Fn(func @ box Fn { defaultness, generics: _, sig, contract: _, body }) => {
self.check_defaultness(item.span, *defaultness);
let is_intrinsic =