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Document Token{Stream,Tree}::Display
more thoroughly.
#120220
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To expressly warn against the kind of proc macro implementation that was broken in rust-lang#119875.
I'm not totally set on the wording, and I am happy to hear any suggestions for improvements. |
@@ -191,6 +191,14 @@ impl ToString for TokenStream { | |||
/// Prints the token stream as a string that is supposed to be losslessly convertible back | |||
/// into the same token stream (modulo spans), except for possibly `TokenTree::Group`s | |||
/// with `Delimiter::None` delimiters and negative numeric literals. | |||
/// | |||
/// Note: the exact form of the output is subject to change, e.g. there might |
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You could consider placing the paragraphs inside <div class="warning"></div>
(with an empty line between the tags and the content) and remove the leading Note:
to make rustdoc render a warning block. This might be too much though.
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I was wondering if there was a better way to mark this paragraph, but I don't see any other use of this class in the library docs. But there are plenty of existing "Note:" examples. So I think I will leave it unchanged.
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Right, that's because warning blocks were added pretty recently and they haven't found much adoption yet. There's one use of them in the rustc docs since I encouraged Nils to make use of them once.
However, I see your point, do however you prefer.
@bors r+ rollup |
…cs, r=petrochenkov Document `Token{Stream,Tree}::Display` more thoroughly. To expressly warn against the kind of proc macro implementation that was broken in rust-lang#119875. r? `@petrochenkov`
…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#119664 (Fix tty detection for msys2's `/dev/ptmx`) - rust-lang#120104 (never_patterns: Count `!` bindings as diverging) - rust-lang#120109 (Move cmath into `sys`) - rust-lang#120143 (Consolidate logic around resolving built-in coroutine trait impls) - rust-lang#120159 (Track `verbose` and `verbose_internals`) - rust-lang#120188 (compiler: update freebsd and netbsd base specs.) - rust-lang#120216 (Fix a `trimmed_def_paths` assertion failure.) - rust-lang#120220 (Document `Token{Stream,Tree}::Display` more thoroughly.) - rust-lang#120233 (Revert stabilization of trait_upcasting feature) r? `@ghost` `@rustbot` modify labels: rollup
…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#119664 (Fix tty detection for msys2's `/dev/ptmx`) - rust-lang#120104 (never_patterns: Count `!` bindings as diverging) - rust-lang#120109 (Move cmath into `sys`) - rust-lang#120143 (Consolidate logic around resolving built-in coroutine trait impls) - rust-lang#120159 (Track `verbose` and `verbose_internals`) - rust-lang#120216 (Fix a `trimmed_def_paths` assertion failure.) - rust-lang#120220 (Document `Token{Stream,Tree}::Display` more thoroughly.) - rust-lang#120233 (Revert stabilization of trait_upcasting feature) r? `@ghost` `@rustbot` modify labels: rollup
Rollup merge of rust-lang#120220 - nnethercote:TokenStream-Display-docs, r=petrochenkov Document `Token{Stream,Tree}::Display` more thoroughly. To expressly warn against the kind of proc macro implementation that was broken in rust-lang#119875. r? ``@petrochenkov``
…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#119664 (Fix tty detection for msys2's `/dev/ptmx`) - rust-lang#120104 (never_patterns: Count `!` bindings as diverging) - rust-lang#120109 (Move cmath into `sys`) - rust-lang#120143 (Consolidate logic around resolving built-in coroutine trait impls) - rust-lang#120159 (Track `verbose` and `verbose_internals`) - rust-lang#120216 (Fix a `trimmed_def_paths` assertion failure.) - rust-lang#120220 (Document `Token{Stream,Tree}::Display` more thoroughly.) - rust-lang#120233 (Revert stabilization of trait_upcasting feature) r? `@ghost` `@rustbot` modify labels: rollup
To expressly warn against the kind of proc macro implementation that was broken in #119875.
r? @petrochenkov