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symbols: add is_preinterned fn to check if symbol was preinterned in compiler

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klensy 2022-08-20 15:13:41 +03:00
parent 36e530cb08
commit 0016356f2b
2 changed files with 6 additions and 1 deletions
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5
compiler/rustc_span/src/symbol.rs
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@ -2027,6 +2027,11 @@ impl Symbol {
pub fn can_be_raw(self) -> bool {
self != kw::Empty && self != kw::Underscore && !self.is_path_segment_keyword()
}
/// Is this symbol was interned in compiler's `symbols!` macro
pub fn is_preinterned(self) -> bool {
self.as_u32() < PREINTERNED_SYMBOLS_COUNT
}
}
impl Ident {