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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/generic-associated-types/issue-70304.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/generic-associated-types/issue-70304.rs')
-rw-r--r-- | src/test/ui/generic-associated-types/issue-70304.rs | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/test/ui/generic-associated-types/issue-70304.rs b/src/test/ui/generic-associated-types/issue-70304.rs new file mode 100644 index 000000000..f778f985c --- /dev/null +++ b/src/test/ui/generic-associated-types/issue-70304.rs @@ -0,0 +1,57 @@ +#![feature(generic_associated_types)] + +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); +} |