@fable-org/fable-library-js/Long.js

Core library used by F# projects compiled with fable.io

import { getPrefix, isValid } from "./Int32.js";
import { fromString } from "./BigInt.js";
import { Exception } from "./Util.js";
function getMaxValue(unsigned, radix, isNegative) {
    switch (radix) {
        case 2: return unsigned ?
            "1111111111111111111111111111111111111111111111111111111111111111" :
            (isNegative ? "1000000000000000000000000000000000000000000000000000000000000000"
                : "111111111111111111111111111111111111111111111111111111111111111");
        case 8: return unsigned ?
            "1777777777777777777777" :
            (isNegative ? "1000000000000000000000" : "777777777777777777777");
        case 10: return unsigned ?
            "18446744073709551615" :
            (isNegative ? "9223372036854775808" : "9223372036854775807");
        case 16: return unsigned ?
            "FFFFFFFFFFFFFFFF" :
            (isNegative ? "8000000000000000" : "7FFFFFFFFFFFFFFF");
        default: throw new Exception("Invalid radix.");
    }
}
export function parse(str, style, unsigned, _bitsize, radix) {
    const res = isValid(str, style, radix);
    if (res != null) {
        const lessOrEqual = (x, y) => {
            const len = Math.max(x.length, y.length);
            return x.padStart(len, "0") <= y.padStart(len, "0");
        };
        const isNegative = res.sign === "-";
        const maxValue = getMaxValue(unsigned || res.radix !== 10, res.radix, isNegative);
        if (lessOrEqual(res.digits.toUpperCase(), maxValue)) {
            str = getPrefix(res.radix) + res.digits;
            str = isNegative ? res.sign + str : str;
            return fromString(str);
        }
    }
    throw new Exception(`The input string ${str} was not in a correct format.`);
}
export function tryParse(str, style, unsigned, bitsize, defValue) {
    try {
        defValue.contents = parse(str, style, unsigned, bitsize);
        return true;
    }
    catch {
        return false;
    }
}