Internally, IntegerParseStrategy currently parses as Int64 or Double (since that's what ICU supports) and then casts to the format output type. However, if the format output type is an unsigned integer or an integer of width less than 64 bits, this causes a crash. We should instead detect this and throw an error during parsing if the parsed number does not fit within the bounds of the specified output type.
jmschonfeld
commented
1 month ago
Internally,
IntegerParseStrategycurrently parses asInt64orDouble(since that's what ICU supports) and then casts to the format output type. However, if the format output type is an unsigned integer or an integer of width less than 64 bits, this causes a crash. We should instead detect this and throw an error during parsing if the parsed number does not fit within the bounds of the specified output type.Resolves rdar://129237031