Function getBigInt

lib.esm/utils/maths.js:69–91

(value, name)

 *  a BigInt, then an ArgumentError will be thrown for %%name%%.
 */
export function getBigInt(value, name) {
    switch (typeof (value)) {
        case "bigint": return value;
        case "number":
            assertArgument(Number.isInteger(value), "underflow", name || "value", value);
            assertArgument(value >= -maxValue && value <= maxValue, "overflow", name || "value", value);
            return BigInt(value);
        case "string":
            try {
                if (value === "") {
                    throw new Error("empty string");
                }
                if (value[0] === "-" && value[1] !== "-") {
                    return -BigInt(value.substring(1));
                }
                return BigInt(value);
            }
            catch (e) {
                assertArgument(false, `invalid BigNumberish string: ${e.message}`, name || "value", value);
            }
    }
    assertArgument(false, "invalid BigNumberish value", name || "value", value);
}
/**
 *  Returns %%value%% as a bigint, validating it is valid as a bigint
 *  value and that it is positive.