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Rollup merge of #110394 - scottmcm:less-idx-new, r=WaffleLapkin

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Various minor Idx-related tweaks

Nothing particularly exciting here, but a couple of things I noticed as I was looking for more index conversions to simplify.

cc https://github.com/rust-lang/compiler-team/issues/606
r? `@WaffleLapkin`
This commit is contained in:
Matthias Krüger 2023-04-17 18:13:35 +02:00 • committed by GitHub
commit 0790996a07
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17 changed files with 55 additions and 52 deletions
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8
compiler/rustc_ast/src/node_id.rs
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@ -9,14 +9,14 @@ rustc_index::newtype_index! {
///
/// [`DefId`]: rustc_span::def_id::DefId
#[debug_format = "NodeId({})"]
pub struct NodeId {}
pub struct NodeId {
/// The [`NodeId`] used to represent the root of the crate.
const CRATE_NODE_ID = 0;
}
}
rustc_data_structures::define_id_collections!(NodeMap, NodeSet, NodeMapEntry, NodeId);
/// The [`NodeId`] used to represent the root of the crate.
pub const CRATE_NODE_ID: NodeId = NodeId::from_u32(0);
/// When parsing and at the beginning of doing expansions, we initially give all AST nodes
/// this dummy AST [`NodeId`]. Then, during a later phase of expansion, we renumber them
/// to have small, positive IDs.