Reduce safe integer range to exclude +/- 2^53 and match JavaScript safe-integer bounds #1240
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…pt safe-integer bounds
CertainLach
reviewed
May 13, 2025
That sounds like the tests need some more work. I'll see if I can improve it before merging. |
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As noted in #1217 (comment) and discussed in #1238.
Although 2^53 is representable (there is a bit-pattern for a IEEE-754 double precision float which represents this value), it is not safe because as @CertainLach pointed out, it is ambiguous/not distinguishable from 2^53+1 which is not representable and would be rounded down.
This also switches from a StaticError to a RuntimeError when encounting a non-integer-safe value since these values are runtime constructs not parse time (static).
@CertainLach if you have time to review, I'd appreciate it.
Fixes #1238.