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fix(boa): fixes panic on bigint size (#1415)

pull/1332/head
neeldug 3 years ago committed by GitHub
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  1. 9
      boa/src/bigint.rs

9
boa/src/bigint.rs

@ -169,6 +169,15 @@ impl JsBigInt {
return Err(context.construct_range_error("BigInt negative exponent"));
};
let num_bits = (x.inner.bits() as f64
* y.to_f64().expect("Unable to convert from BigUInt to f64"))
.floor()
+ 1f64;
if num_bits > 1_000_000_000f64 {
return Err(context.construct_range_error("Maximum BigInt size exceeded"));
}
Ok(Self::new(x.inner.as_ref().clone().pow(y)))
}

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