rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Touch up TokenSet a bit

Browse Source
This commit is contained in:
Aleksey Kladov
2019-12-19 17:13:08 +01:00
parent a766f63650
commit 0ed8ce096d
4 changed files with 6 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
crates/ra_parser/src/token_set.rs
View File

@@ -1,4 +1,4 @@
//! FIXME: write short doc here
//! A bit-set of `SyntaxKind`s.
use crate::SyntaxKind;
@@ -7,9 +7,7 @@ use crate::SyntaxKind;
pub(crate) struct TokenSet(u128);
impl TokenSet {
pub(crate) const fn empty() -> TokenSet {
TokenSet(0)
}
pub(crate) const EMPTY: TokenSet = TokenSet(0);
pub(crate) const fn singleton(kind: SyntaxKind) -> TokenSet {
TokenSet(mask(kind))
@@ -30,7 +28,7 @@ const fn mask(kind: SyntaxKind) -> u128 {
#[macro_export]
macro_rules! token_set {
($($t:expr),*) => { TokenSet::empty()$(.union(TokenSet::singleton($t)))* };
($($t:expr),*) => { TokenSet::EMPTY$(.union(TokenSet::singleton($t)))* };
($($t:expr),* ,) => { token_set!($($t),*) };
}