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authorbors <bors@rust-lang.org>2020-11-20 16:12:35 +0000
committerbors <bors@rust-lang.org>2020-11-20 16:12:35 +0000
commit593fe977a77ad5a7aec23c6cb0f86a3470221670 (patch)
tree60b0db4d2af9db796f7654aecb718e6ba87b8dfb /compiler/rustc_interface/src
parentc9c57fadc47c8ad986808fc0a47479f6d2043453 (diff)
parent9fca57ceb9a976b54602f86440f7411a359ff0d1 (diff)
downloadrust-593fe977a77ad5a7aec23c6cb0f86a3470221670.tar.gz
rust-593fe977a77ad5a7aec23c6cb0f86a3470221670.zip
Auto merge of #78104 - ssomers:btree_root_redux, r=Mark-Simulacrum
BTreeMap: replace Root with NodeRef<Owned, ...>

`NodeRef<marker::Owned, …>` already exists as a representation of root nodes, and it makes more sense to alias `Root` to that than to reuse the space-efficient `BoxedNode` that is oblivious to height, where height is required.

r? `@Mark-Simulacrum`
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