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Issue #1240 - Part 9 - Fix incorrectly parsing decimal BigInt 0n. The decimal parser strips leading 0s, so prevent tokenbuf being empty.

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Brian Smith 2023-07-21 14:20:11 -05:00 • committed by roytam1
commit 4aa193b16b
1 changed files with 5 additions and 2 deletions
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7
js/src/frontend/TokenStream.cpp
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@ -1646,9 +1646,12 @@ TokenStream::getTokenInternal(TokenKind* ttp, Modifier modifier)
if (isBigInt) { if (isBigInt) {
size_t length = userbuf.addressOfNextRawChar() - numStart - 1; size_t length = userbuf.addressOfNextRawChar() - numStart - 1;
tokenbuf.clear(); tokenbuf.clear();
if(!tokenbuf.reserve(length)) if(!tokenbuf.reserve(length > 0 ? length : 1))
goto error; goto error;
tokenbuf.infallibleAppend(numStart, length); if(length > 0)
tokenbuf.infallibleAppend(numStart, length);
else
tokenbuf.infallibleAppend("0", 1);
tp->type = TOK_BIGINT; tp->type = TOK_BIGINT;
goto out; goto out;
} }