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Clone entire TokenCursor when collecting tokens #81472

Merged
merged 1 commit into from
Jan 31, 2021
Merged

Clone entire TokenCursor when collecting tokens #81472

merged 1 commit into from
Jan 31, 2021

Commits on Jan 28, 2021

  1. Clone entire TokenCursor when collecting tokens 

    Reverts PR rust-lang#80830
Fixes taiki-e/pin-project#312

We can have an arbitrary number of `None`-delimited group frames pushed
on the stack due to proc-macro invocations, which can legally be exited.
Attempting to account for this would add a lot of complexity for a tiny
performance gain, so let's just use the original strategy.
    @Aaron1011
    Aaron1011 committed Jan 28, 2021
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