rustc: Remove support for hyphens in crate names #23786
Merged
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This commit removes parser support for
extern crate "foo" as bar
as therenamed crate is now required to be an identifier. Additionally this commit
enables hard errors on crate names that contain hyphens in them, they must now
solely contain alphanumeric characters or underscores.
If the crate name is inferred from the file name, however, the file name
foo-bar.rs
will have the crate name inferred asfoo_bar
. If a binary isbeing emitted it will have the name
foo-bar
and a library will have the namelibfoo_bar.rlib
.This commit is a breaking change for a number of reasons:
rust_out
instead of
rust-out
.foo-bar.rs
is nowfoo_bar
which canaffect infrastructure such as logging.
[breaking-change]
Closes #23533