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rust/compiler/rustc_middle
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Matthias Krüger 59dc2187ad
Rollup merge of #89738 - eddyb:extern-crate-recursion, r=nagisa 
ty::pretty: prevent infinite recursion for `extern crate` paths.

Fixes #55779, fixes #87932.

This fix is based on `@estebank's` idea in https://github.com/rust-lang/rust/issues/55779#issuecomment-614758510 - but instead of trying to get `try_print_visible_def_path_recur`'s cycle detection to work in this case, this PR "just" disables the "visible path" feature when printing the path to an `extern crate`, so that the old recursion chain of `try_print_visible_def_path -> print_def_path -> try_print_visible_def_path`, is now impossible.

Both tests have been confirmed to crash `rustc` because of a stack overflow, without the fix.
2021-10-17 18:18:55 +02:00
..
benches mv compiler to compiler/ 2020-08-30 18:45:07 +03:00
src Rollup merge of #89738 - eddyb:extern-crate-recursion, r=nagisa 2021-10-17 18:18:55 +02:00
Cargo.toml Implemented -Z randomize-layout 2021-09-30 14:50:06 -05:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

For more information about how rustc works, see the rustc dev guide.