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Inline Parser::nonterminal_may_begin_with.

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This commit is contained in:
Nicholas Nethercote 2022-04-20 14:13:49 +10:00
parent f9235db37e
commit d2b9bbbf78
1 changed files with 4 additions and 2 deletions
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6
compiler/rustc_parse/src/parser/nonterminal.rs
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@ -11,8 +11,10 @@ use crate::parser::{FollowedByType, ForceCollect, NtOrTt, Parser, PathStyle};
impl<'a> Parser<'a> {
/// Checks whether a non-terminal may begin with a particular token.
///
/// Returning `false` is a *stability guarantee* that such a matcher will *never* begin with that
/// token. Be conservative (return true) if not sure.
/// Returning `false` is a *stability guarantee* that such a matcher will *never* begin with
/// that token. Be conservative (return true) if not sure. Inlined because it has a single call
/// site.
#[inline]
pub fn nonterminal_may_begin_with(kind: NonterminalKind, token: &Token) -> bool {
/// Checks whether the non-terminal may contain a single (non-keyword) identifier.
fn may_be_ident(nt: &token::Nonterminal) -> bool {