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Diffstat (limited to 'src/test/rustdoc/comment-in-doctest.rs')
| -rw-r--r-- | src/test/rustdoc/comment-in-doctest.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/rustdoc/comment-in-doctest.rs b/src/test/rustdoc/comment-in-doctest.rs new file mode 100644 index 000000000..5691d1735 --- /dev/null +++ b/src/test/rustdoc/comment-in-doctest.rs @@ -0,0 +1,20 @@ +// compile-flags:--test + +// comments, both doc comments and regular ones, used to trick rustdoc's doctest parser into +// thinking that everything after it was part of the regular program. combined with the librustc_ast +// parser loop failing to detect the manual main function, it would wrap everything in `fn main`, +// which would cause the doctest to fail as the "extern crate" declaration was no longer valid. +// oddly enough, it would pass in 2018 if a crate was in the extern prelude. see +// https://github.com/rust-lang/rust/issues/56727 + +//! ``` +//! // crate: proc-macro-test +//! //! this is a test +//! +//! // used to pull in proc-macro specific items +//! extern crate proc_macro; +//! +//! use proc_macro::TokenStream; +//! +//! # fn main() {} +//! ``` |