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Add way to dump the AST #10485

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emberian opened this issue Nov 14, 2013 · 2 comments
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Add way to dump the AST #10485

emberian opened this issue Nov 14, 2013 · 2 comments
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C-enhancement Category: An issue proposing an enhancement or a PR with one. E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.

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@emberian
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We have the ability to serialize the AST, we should use it! Probably --emit-ast would dump JSON after phase 2.
@osa1 osa1 mentioned this issue Nov 29, 2013
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@Arnavion
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Arnavion commented May 3, 2016

For anyone who googles rust dump ast and lands here (and doesn't look at the commit that closed this), it's rustc -Z ast-json foo.rs

@spinda spinda mentioned this issue Nov 19, 2016
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@V0ldek
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V0ldek commented Feb 8, 2023

This doesn't work.

rustc +nightly -Z ast-json                                                                                
error: unknown unstable option: `ast-json`

I can see an unpretty=ast-tree option, but that dumps the AST in a non-json format.

How do you get a JSON dump?

flip1995 pushed a commit to flip1995/rust that referenced this issue Apr 7, 2023
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Auto merge of rust-lang#10497 - y21:outer_doc_comment_bang, r=dswij
4a2cb5a 
new lint: suspicious_doc_comments

Fixes rust-lang#10485.

This PR adds a new lint (`suspicious_doc_comments`) that triggers when the user writes `///!` or `/**!`.
This is almost certainly a mistake and the user probably meant to write an inner doc comment (`//!`, `/*!`) to document the module or crate that this comment is contained in.

changelog: [`suspicious_doc_comments`]: new lint
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C-enhancement Category: An issue proposing an enhancement or a PR with one. E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.
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@steveklabnik @emberian @Arnavion @V0ldek