refactor: Use more serde_untagged #12581
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I felt this does a good job of cleaning up the code and by using it more, new uses are more likely to use it. Due to an error reporting limitation in `serde_untagged`, I'm not using this for some `MaybeWorkspace` types because it makes the errors worse. I also held off on some config visitors because they seemed more complicated and I didn't want to risk that code.
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Update cargo 21 commits in 96fe1c9e1aecd8f57063e3753969bb6418fd2fd5..d14c85f4e6e7671673b1a1bc87231ff7164761e1 2023-08-29 20:10:34 +0000 to 2023-09-05 22:28:10 +0000 - fix(resolver): Make resolver behavior independent of package order (rust-lang/cargo#12602) - cargo-credential: change serialization of cache expiration (rust-lang/cargo#12622) - Update registry-web-api.md yank/unyank comments (rust-lang/cargo#12619) - test: new options of debuginfo are no longer unstable (rust-lang/cargo#12618) - use split_once for cleaner code (rust-lang/cargo#12615) - stop using lazy_static (rust-lang/cargo#12616) - doc: adjust all doc headings one level up (rust-lang/cargo#12595) - chore(deps): update compatible (rust-lang/cargo#12609) - chore(deps): update rust crate cargo_metadata to 0.17.0 (rust-lang/cargo#12610) - Prepare for partial-version package specs (rust-lang/cargo#12591) - refactor: Use more serde_untagged (rust-lang/cargo#12581) - fix(cli): Help users know possible `--target` values (rust-lang/cargo#12607) - Tab completion for --target uses rustup but fallsback to rustc (rust-lang/cargo#12606) - Fewer temporary needless strings (rust-lang/cargo#12604) - fix(help): Provide better commands heading for styling (rust-lang/cargo#12593) - fix(update): Clarify meaning of --aggressive as --recursive (rust-lang/cargo#12544) - docs(changelog): Clarify language for Cargo.lock policy (rust-lang/cargo#12601) - fix typo: "default branch branch" -> "default branch" (rust-lang/cargo#12598) - fix: add error for unsupported credential provider version (rust-lang/cargo#12590) - fix(help): Explain --explain (rust-lang/cargo#12592) - fix(help): Remove redundant information from new/init (rust-lang/cargo#12594) r? ghost
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This was broken in rust-lang#12581
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Errors like this aren't too helpful ``` error: stderr did not match: 1 1 error: failed to parse manifest at `[..]`2 2 3 3 Caused by:4 4 TOML parse error at line 3, column 275 5 |6 6 3 | version = 17 7 | ^8 - invalid type: integer `1`, expected SemVer version 8 + invalid type: integer `1`, expected a string or workspace ``` This was broken in rust-lang#12581
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fix(test): Add back in newlines to diffs Errors like this aren't too helpful ``` error: stderr did not match: 1 1 error: failed to parse manifest at `[..]`2 2 3 3 Caused by:4 4 TOML parse error at line 3, column 275 5 |6 6 3 | version = 17 7 | ^8 - invalid type: integer `1`, expected SemVer version 8 + invalid type: integer `1`, expected a string or workspace ``` This was broken in #12581
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What does this PR try to resolve?
This is a follow up to #12574 that replaces hand-implemented Visitors with
serde_untaggedbecause I felt it is cleaner codeDue to an error reporting limitation in
serde_untagged, I'm not usingthis for some
MaybeWorkspacetypes because it makes the errors worse. See dtolnay/serde-untagged#2I also held off on some config visitors because they seemed more
complicated and I didn't want to risk that code.
How should we test and review this PR?
The main caveat is we might not have tests for every single error case.
Additional information