Struct napi::bindgen_prelude::BigInt

pub struct BigInt {
    pub sign_bit: bool,
    pub words: Vec<u64>,
}

https://nodejs.org/api/n-api.html#napi_create_bigint_words The resulting BigInt is calculated as: (–1)^sign_bit (words[0] × (2^64)^0 + words[1] × (2^64)^1 + …)

Fields

sign_bit: bool

true for negative numbers

words: Vec<u64>

Implementations

impl BigInt

pub fn get_u64(&self) -> (bool, u64, bool)

(signed, value, lossless) get the first word of the BigInt as u64 return true in the last element of tuple if the value is lossless or the value is truncated

pub fn get_i64(&self) -> (i64, bool)

(value, lossless) get the first word of the BigInt as i64 return true if the value is lossless or the value is truncated

pub fn get_i128(&self) -> (i128, bool)

(value, lossless) get the first two words of the BigInt as i128 return true if the value is lossless or the value is truncated

pub fn get_u128(&self) -> (bool, u128, bool)

(signed, value, lossless) get the first two words of the BigInt as u128 return true if the value is lossless or the value is truncated

Trait Implementations

impl Clone for BigInt

fn clone(&self) -> BigInt

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BigInt

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<i128> for BigInt

fn from(val: i128) -> Self

Converts to this type from the input type.

impl From<i64> for BigInt

fn from(val: i64) -> Self

Converts to this type from the input type.

impl From<u128> for BigInt

fn from(val: u128) -> Self

Converts to this type from the input type.

impl From<u64> for BigInt

fn from(val: u64) -> Self

Converts to this type from the input type.

impl FromNapiValue for BigInt

unsafe fn from_napi_value(env: napi_env, napi_val: napi_value) -> Result<Self>

Safety

fn from_unknown(value: JsUnknown) -> Result<Self>

impl ToNapiValue for BigInt

unsafe fn to_napi_value(env: napi_env, val: Self) -> Result<napi_value>

Safety

impl TypeName for BigInt

fn type_name() -> &'static str

fn value_type() -> ValueType

impl ValidateNapiValue for BigInt

unsafe fn validate(env: napi_env, napi_val: napi_value) -> Result<napi_value>

Safety