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BigNumber support

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This commit is contained in:
Marek Kotewicz
2015-01-16 10:47:43 +01:00
parent ec74fc05d4
commit fbcc6d0d25
7 changed files with 39 additions and 29 deletions
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26
lib/abi.js
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@ -26,6 +26,8 @@ if (process.env.NODE_ENV !== 'build') {
var web3 = require('./web3'); // jshint ignore:line
}
var BigNumber = require('bignumber.js');
// TODO: make these be actually accurate instead of falling back onto JS's doubles.
var hexToDec = function (hex) {
return parseInt(hex, 16).toString();
@ -84,24 +86,26 @@ var namedType = function (name) {
var setupInputTypes = function () {
/// Formats input value to byte representation of int
/// If value is negative, return it's two's complement
/// @returns right-aligned byte representation of int
var formatInt = function (value) {
var padding = 32 * 2;
if (typeof value === 'number') {
if (value < 0) {
// two's complement
// TODO: fix big numbers support
value = ((value) >>> 0).toString(16);
return padLeft(value, padding, 'f');
}
value = value.toString(16);
if (value instanceof BigNumber) {
if (value.lessThan(0))
value = new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(value).plus(1).toString(16);
else
value = value.toString(16);
}
else if (typeof value === 'number') {
if (value < 0)
value = new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(value).plus(1).toString(16);
else
value = new BigNumber(value).toString(16);
}
else if (value.indexOf('0x') === 0)
value = value.substr(2);
else if (typeof value === 'string')
value = value.toHex(value);
value = new BigNumber(value).toString(16);
else
value = (+value).toString(16);
return padLeft(value, padding);