rust/crates/parser/src/syntax_kind.rs
2021-09-06 18:54:16 +03:00

30 lines
653 B
Rust

//! Defines [`SyntaxKind`] -- a fieldless enum of all possible syntactic
//! constructs of the Rust language.
mod generated;
#[allow(unreachable_pub)]
pub use self::generated::{SyntaxKind, T};
impl From<u16> for SyntaxKind {
#[inline]
fn from(d: u16) -> SyntaxKind {
assert!(d <= (SyntaxKind::__LAST as u16));
unsafe { std::mem::transmute::<u16, SyntaxKind>(d) }
}
}
impl From<SyntaxKind> for u16 {
#[inline]
fn from(k: SyntaxKind) -> u16 {
k as u16
}
}
impl SyntaxKind {
#[inline]
pub fn is_trivia(self) -> bool {
matches!(self, SyntaxKind::WHITESPACE | SyntaxKind::COMMENT)
}
}