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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/generic-associated-types/issue-70304.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/generic-associated-types/issue-70304.rs')
-rw-r--r-- | tests/ui/generic-associated-types/issue-70304.rs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/ui/generic-associated-types/issue-70304.rs b/tests/ui/generic-associated-types/issue-70304.rs new file mode 100644 index 000000000..8898d4c7d --- /dev/null +++ b/tests/ui/generic-associated-types/issue-70304.rs @@ -0,0 +1,55 @@ +trait Document { + type Cursor<'a>: DocCursor<'a>; + //~^ ERROR: missing required bound on `Cursor` + + fn cursor(&self) -> Self::Cursor<'_>; +} + +struct DocumentImpl {} + +impl Document for DocumentImpl { + type Cursor<'a> = DocCursorImpl<'a>; + + fn cursor(&self) -> Self::Cursor<'_> { + DocCursorImpl { document: &self } + } +} + +trait DocCursor<'a> {} + +struct DocCursorImpl<'a> { + document: &'a DocumentImpl, +} + +impl<'a> DocCursor<'a> for DocCursorImpl<'a> {} + +struct Lexer<'d, Cursor> +where + Cursor: DocCursor<'d>, +{ + cursor: Cursor, + _phantom: std::marker::PhantomData<&'d ()>, +} + +impl<'d, Cursor> Lexer<'d, Cursor> +where + Cursor: DocCursor<'d>, +{ + pub fn from<Doc>(document: &'d Doc) -> Lexer<'d, Cursor> + where + Doc: Document<Cursor<'d> = Cursor>, + { + Lexer { cursor: document.cursor(), _phantom: std::marker::PhantomData } + } +} + +fn create_doc() -> impl Document<Cursor<'_> = DocCursorImpl<'_>> { + //~^ ERROR `'_` cannot be used here [E0637] + //~| ERROR: missing lifetime specifier + DocumentImpl {} +} + +pub fn main() { + let doc = create_doc(); + let lexer: Lexer<'_, DocCursorImpl<'_>> = Lexer::from(&doc); +} |