rustc: Remove support for hyphens in crate names #23786
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This commit removes parser support for `extern crate "foo" as bar` as the renamed 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 as `foo_bar`. If a binary is being emitted it will have the name `foo-bar` and a library will have the name `libfoo_bar.rlib`. This commit is a breaking change for a number of reasons: * Old syntax is being removed. This was previously only issuing warnings. * The output for the compiler when input is received on stdin is now `rust_out` instead of `rust-out`. * The crate name for a crate in the file `foo-bar.rs` is now `foo_bar` which can affect infrastructure such as logging. [breaking-change]
Conflicts: src/libsyntax/parse/parser.rs
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This is currently rebased on #23738 for convenience. |
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r? @brson |
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@bors r+ |
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📌 Commit e77db16 has been approved by |
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Conflicts: src/test/auxiliary/static-function-pointer-aux.rs src/test/auxiliary/trait_default_method_xc_aux.rs src/test/run-pass/issue-4545.rs
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This commit removes parser support for
extern crate "foo" as baras 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.rswill have the crate name inferred asfoo_bar. If a binary isbeing emitted it will have the name
foo-barand a library will have the namelibfoo_bar.rlib.This commit is a breaking change for a number of reasons:
rust_outinstead of
rust-out.foo-bar.rsis nowfoo_barwhich canaffect infrastructure such as logging.
[breaking-change]
Closes #23533