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Текущая директория: /opt/BitGoJS/modules/utxo-core/dist/src
Просмотр файла: Output.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isMaxOutput = isMaxOutput;
exports.getMaxOutput = getMaxOutput;
exports.getOutputSum = getOutputSum;
exports.getFixedOutputSum = getFixedOutputSum;
exports.toFixedOutputs = toFixedOutputs;
/**
* @return true if the output is a max output
*/
function isMaxOutput(output) {
return output.value === 'max';
}
/**
* @return the max output if there is one
* @throws if there are multiple max outputs
*/
function getMaxOutput(outputs) {
const max = outputs.filter((isMaxOutput));
if (max.length === 0) {
return undefined;
}
if (max.length > 1) {
throw new Error('Multiple max outputs');
}
return max[0];
}
/**
* @return the sum of the outputs
*/
function getOutputSum(outputs) {
return outputs.reduce((sum, output) => sum + output.value, 0n);
}
/**
* @return the sum of the outputs that are not 'max'
*/
function getFixedOutputSum(outputs) {
return getOutputSum(outputs.filter((o) => !isMaxOutput(o)));
}
/**
* @param outputs
* @param params
* @return the outputs with the 'max' output replaced with the max amount
*/
function toFixedOutputs(outputs, params) {
// assert that there is at most one max output
const maxOutput = getMaxOutput(outputs);
return outputs.map((output) => {
if (isMaxOutput(output)) {
if (output !== maxOutput) {
throw new Error('illegal state');
}
return { ...output, value: params.maxAmount };
}
else {
return output;
}
});
}
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