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Avoid recursion in de-gensym functions.

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This commit is contained in:
Nicholas Nethercote 2019-05-09 11:54:47 +10:00
parent 8c465b4efa
commit c2cae7bbc3
1 changed files with 5 additions and 2 deletions
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7
src/libsyntax_pos/symbol.rs
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@ -492,7 +492,7 @@ impl Interner {
if (symbol.0.as_usize()) < self.strings.len() {
symbol
} else {
self.interned(self.gensyms[(SymbolIndex::MAX_AS_U32 - symbol.0.as_u32()) as usize])
self.gensyms[(SymbolIndex::MAX_AS_U32 - symbol.0.as_u32()) as usize]
}
}
@ -513,7 +513,10 @@ impl Interner {
pub fn get(&self, symbol: Symbol) -> &str {
match self.strings.get(symbol.0.as_usize()) {
Some(string) => string,
None => self.get(self.gensyms[(SymbolIndex::MAX_AS_U32 - symbol.0.as_u32()) as usize]),
None => {
let symbol = self.gensyms[(SymbolIndex::MAX_AS_U32 - symbol.0.as_u32()) as usize];
self.strings[symbol.0.as_usize()]
}
}
}
}