`collect_tokens_trailing_token` cleanups by nnethercote · Pull Request #127902 · rust-lang/rust

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…g_token-cleanups, r=petrochenkov

`collect_tokens_trailing_token` cleanups

More cleanups I made while understanding the code for processing `cfg_attr`, to fix test failures in rust-lang#124141.

r? ``@petrochenkov``

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The `Option`s within the `ReplaceRange`s within the hashmap are always
`None`. This PR omits them and inserts them when they are extracted from
the hashmap.
It's no shorter than `ret.attrs()`, and `ret.attrs()` is used multiple
times earlier in the function.
This puts it just before the `replace_ranges` initialization, which
makes sense because the two variables are closely related.
Currently in `collect_tokens_trailing_token`, `start_pos` and `end_pos`
are 1-indexed by `replace_ranges` is 0-indexed, which is really
confusing. Making them both 0-indexed makes debugging much easier.
Adding details, clarifying lots of little things, etc. In particular,
the commit adds details of an example. I find this very helpful, because
it's taken me a long time to understand how this code works.

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Jul 19, 2024
Rollup of 7 pull requests

Successful merges:

 - rust-lang#121533 (Handle .init_array link_section specially on wasm)
 - rust-lang#127825 (Migrate `macos-fat-archive`, `manual-link` and `archive-duplicate-names` `run-make` tests to rmake)
 - rust-lang#127891 (Tweak suggestions when using incorrect type of enum literal)
 - rust-lang#127902 (`collect_tokens_trailing_token` cleanups)
 - rust-lang#127928 (Migrate `lto-smoke-c` and `link-path-order` `run-make` tests to rmake)
 - rust-lang#127935 (Change `binary_asm_labels` to only fire on x86 and x86_64)
 - rust-lang#127953 ([compiletest] Search *.a when getting dynamic libraries on AIX)

r? `@ghost`
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rust-timer added a commit to rust-lang-ci/rust that referenced this pull request

Jul 19, 2024
Rollup merge of rust-lang#127902 - nnethercote:collect_tokens_trailing_token-cleanups, r=petrochenkov

`collect_tokens_trailing_token` cleanups

More cleanups I made while understanding the code for processing `cfg_attr`, to fix test failures in rust-lang#124141.

r? `@petrochenkov`

@nnethercote nnethercote deleted the collect_tokens_trailing_token-cleanups branch

July 21, 2024 23:48