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ffa2e7ae8f
rust/compiler/rustc_middle
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bors ffa2e7ae8f Auto merge of #77255 - Aaron1011:feature/collect-attr-tokens, r=petrochenkov 
Unconditionally capture tokens for attributes.

This allows us to avoid synthesizing tokens in `prepend_attr`, since we
have the original tokens available.

We still need to synthesize tokens when expanding `cfg_attr`,
but this is an unavoidable consequence of the syntax of `cfg_attr` -
the user does not supply the `#` and `[]` tokens that a `cfg_attr`
expands to.

This is based on PR https://github.com/rust-lang/rust/pull/77250 - this PR exposes a bug in the current `collect_tokens` implementation, which is fixed by the rewrite.
2020-10-24 19:23:32 +00:00
..
benches mv compiler to compiler/ 2020-08-30 18:45:07 +03:00
src Auto merge of #77255 - Aaron1011:feature/collect-attr-tokens, r=petrochenkov 2020-10-24 19:23:32 +00:00
Cargo.toml Update chalk to 0.32.0 2020-10-08 13:17:01 +02:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

For more information about how rustc works, see the rustc dev guide.