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bignumber.js
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Remove crypto require. Default POW_PRECISION to 0. Add set as config alias.

This commit is contained in:
Michael Mclaughlin 2016-11-09 22:51:14 +00:00
parent 4bc0fe696c
commit 4a80c36372
1 changed files with 31 additions and 21 deletions
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52
bignumber.js
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@ -12,7 +12,7 @@
*/
var BigNumber, cryptoObj, parseNumeric,
var BigNumber, parseNumeric,
isNumeric = /^-?(\d+(\.\d*)?|\.\d+)(e[+-]?\d+)?$/i,
mathceil = Math.ceil,
mathfloor = Math.floor,
@ -34,8 +34,6 @@
*/
MAX = 1E9; // 0 to MAX_INT32
if ( typeof crypto != 'undefined' ) cryptoObj = crypto;
/*
* Create and return a BigNumber constructor.
@ -127,7 +125,7 @@
// The maximum number of significant digits of the result of the toPower operation.
// If POW_PRECISION is 0, there will be unlimited significant digits.
POW_PRECISION = 100, // 0 to MAX
POW_PRECISION = 0, // 0 to MAX
// The format specification used by the BigNumber.prototype.toFormat method.
FORMAT = {
@ -364,7 +362,7 @@
* Ignore properties/parameters set to null or undefined.
* Return an object with the properties current values.
*/
BigNumber.config = function () {
BigNumber.config = BigNumber.set = function () {
var v, p,
i = 0,
r = {},
@ -444,9 +442,19 @@
// 'config() crypto unavailable: {crypto}'
if ( has( p = 'CRYPTO' ) ) {
if ( v === !!v || v === 1 || v === 0 ) {
CRYPTO = !!( v && cryptoObj );
if ( v && !CRYPTO && ERRORS ) raise( 2, 'crypto unavailable', cryptoObj );
if ( v === true || v === false || v === 1 || v === 0 ) {
if (v) {
v = typeof crypto == 'undefined';
if ( !v && crypto && (crypto.getRandomValues || crypto.randomBytes)) {
CRYPTO = true;
} else if (ERRORS) {
raise( 2, 'crypto unavailable', v ? void 0 : crypto );
} else {
CRYPTO = false;
}
} else {
CRYPTO = false;
}
} else if (ERRORS) {
raise( 2, p + notBool, v );
}
@ -536,9 +544,9 @@
if (CRYPTO) {
// Browsers supporting crypto.getRandomValues.
if ( cryptoObj && cryptoObj.getRandomValues ) {
if (crypto.getRandomValues) {
a = cryptoObj.getRandomValues( new Uint32Array( k *= 2 ) );
a = crypto.getRandomValues( new Uint32Array( k *= 2 ) );
for ( ; i < k; ) {
@ -555,7 +563,7 @@
// Probability that v >= 9e15, is
// 7199254740992 / 9007199254740992 ~= 0.0008, i.e. 1 in 1251
if ( v >= 9e15 ) {
b = cryptoObj.getRandomValues( new Uint32Array(2) );
b = crypto.getRandomValues( new Uint32Array(2) );
a[i] = b[0];
a[i + 1] = b[1];
} else {
@ -569,10 +577,10 @@
i = k / 2;
// Node.js supporting crypto.randomBytes.
} else if ( cryptoObj && cryptoObj.randomBytes ) {
} else if (crypto.randomBytes) {
// buffer
a = cryptoObj.randomBytes( k *= 7 );
a = crypto.randomBytes( k *= 7 );
for ( ; i < k; ) {
@ -585,7 +593,7 @@
( a[i + 4] << 16 ) + ( a[i + 5] << 8 ) + a[i + 6];
if ( v >= 9e15 ) {
cryptoObj.randomBytes(7).copy( a, i );
crypto.randomBytes(7).copy( a, i );
} else {
// 0 <= (v % 1e14) <= 99999999999999
@ -594,13 +602,18 @@
}
}
i = k / 7;
} else if (ERRORS) {
raise( 14, 'crypto unavailable', cryptoObj );
} else {
CRYPTO = false;
if (ERRORS) {
raise( 14, 'crypto unavailable',
crypto.getRandomValues || crypto.randomBytes );
}
}
}
// Use Math.random: CRYPTO is false or crypto is unavailable and ERRORS is false.
if (!i) {
// Use Math.random.
if (!CRYPTO) {
for ( ; i < k; ) {
v = random53bitInt();
@ -2726,9 +2739,6 @@
} else if ( typeof module != 'undefined' && module.exports ) {
module.exports = BigNumber;
// Split string stops browserify adding crypto shim.
if ( !cryptoObj ) try { cryptoObj = require('cry' + 'pto'); } catch (e) {}
// Browser.
} else {
if ( !globalObj ) globalObj = typeof self != 'undefined' ? self : Function('return this')();