refactor(embedded): Switch to syn for parsing doc comments
#12258
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The hope is this will result in more resilient comment handling, being more consistent with rustdoc. I also hoped for less code but `syn` is doing less than I had expected, requiring us to copy code over from other parts of rust. It seems every proc macro has to do this but there is no guide to it, so they all do it differently, only covering the cases they thought to test for. Note that this still won't support `include_str!()`.
weihanglo
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Could we have some more test cases:
- A mix of normal and inner comment. This didn't work for the
clapexample
with the regex implementation, but with syn it works. For example,// I am a normal comment //! ```cargo //! ...
- A mix of multi single and multi-line docs. For example
rustdocallows this:/// ``` /// assert!(true); /** * assert!(false, "you shall not pass"); * ``` */
- Should we add tests for raw
#[doc]attirbutes? Not really a blocker though.
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Jun 17, 2023
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refactor(embedded): Switch to `syn` for parsing doc comments This is a follow up to #12245 which is working to resolve #12207 The hope is this will result in more resilient comment handling, being more consistent with rustdoc. I also hoped for less code but `syn` is doing less than I had expected, requiring us to copy code over from other parts of rust. It seems every proc macro has to do this but there is no guide to it, so they all do it differently, only covering the cases they thought to test for. Note that this still won't support `include_str!()`.
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Spurious I guess? @bors retry |
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Update cargo 12 commits in 0c14026aa84ee2ec4c67460c0a18abc8519ca6b2..dead4b8740c4b6a8ed5211e37c99cf81d01c3b1c 2023-06-14 18:43:05 +0000 to 2023-06-20 20:07:17 +0000 - Convert valid feature name warning to an error. (rust-lang/cargo#12291) - fix(embedded): Don't pollute script dir with lockfile (rust-lang/cargo#12284) - fix: remove `-Zjobserver-per-rustc` again (rust-lang/cargo#12285) - docs: some tweaks around `cargo test` (rust-lang/cargo#12288) - Enable `doctest-in-workspace` by default (rust-lang/cargo#12221) - fix(embedded): Don't auto-discover build.rs files (rust-lang/cargo#12283) - fix(embeded): Don't pollute the scripts dir with `target/` (rust-lang/cargo#12282) - feat: prepare for the next lockfile bump (rust-lang/cargo#12279) - fix(embedded): Don't create an intermediate manifest (rust-lang/cargo#12268) - refactor(embedded): Switch to `syn` for parsing doc comments (rust-lang/cargo#12258) - fix(embedded): Align package name sanitization with cargo-new (rust-lang/cargo#12255) - Clarify the default behavior of cargo-install. (rust-lang/cargo#12276) r? `@ghost`
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This is a follow up to #12245 which is working to resolve #12207
The hope is this will result in more resilient comment handling, being more consistent with rustdoc.
I also hoped for less code but
synis doing less than I had expected, requiring us to copy code over from other parts of rust. It seems every proc macro has to do this but there is no guide to it, so they all do it differently, only covering the cases they thought to test for.See https://rust-lang.zulipchat.com/#narrow/stream/266220-rustdoc/topic/.E2.9C.94.20Stripping.20of.20doc-comment.20leading.20characters for some technical conversation on using
synand the gap betweensynand what rustc does.Note that this still won't support
include_str!().