bjoernager/rust
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rustc_index: Add a ZERO constant to index types

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It is commonly used.
This commit is contained in:
Vadim Petrochenkov 2024-04-03 17:49:59 +03:00
parent ceab6128fa
commit b40ea03f8a
42 changed files with 80 additions and 90 deletions
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2
compiler/rustc_span/src/def_id.rs
View file

@ -22,7 +22,7 @@ rustc_index::newtype_index! {
/// Item definitions in the currently-compiled crate would have the `CrateNum`
/// `LOCAL_CRATE` in their `DefId`.
pub const LOCAL_CRATE: CrateNum = CrateNum::from_u32(0);
pub const LOCAL_CRATE: CrateNum = CrateNum::ZERO;
impl CrateNum {
#[inline]

4
compiler/rustc_span/src/hygiene.rs
View file

@ -165,7 +165,7 @@ pub enum Transparency {
impl LocalExpnId {
/// The ID of the theoretical expansion that generates freshly parsed, unexpanded AST.
pub const ROOT: LocalExpnId = LocalExpnId::from_u32(0);
pub const ROOT: LocalExpnId = LocalExpnId::ZERO;
#[inline]
fn from_raw(idx: ExpnIndex) -> LocalExpnId {
@ -242,7 +242,7 @@ impl ExpnId {
/// The ID of the theoretical expansion that generates freshly parsed, unexpanded AST.
/// Invariant: we do not create any ExpnId with local_id == 0 and krate != 0.
pub const fn root() -> ExpnId {
ExpnId { krate: LOCAL_CRATE, local_id: ExpnIndex::from_u32(0) }
ExpnId { krate: LOCAL_CRATE, local_id: ExpnIndex::ZERO }
}
#[inline]

2
compiler/rustc_span/src/source_map/tests.rs
View file

@ -243,7 +243,7 @@ fn t10() {
src_hash,
stable_id,
source_len.to_u32(),
CrateNum::new(0),
CrateNum::ZERO,
FreezeLock::new(lines.read().clone()),
multibyte_chars,
non_narrow_chars,