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Текущая директория: /opt/BitGoJS/modules/utxo-core/dist/src/descriptor
Просмотр файла: derive.js
"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getDescriptorAtIndex = getDescriptorAtIndex;
exports.getDescriptorAtIndexCheckScript = getDescriptorAtIndexCheckScript;
const assert_1 = __importDefault(require("assert"));
const wasm_miniscript_1 = require("@bitgo/wasm-miniscript");
/**
* Get a descriptor at a specific derivation index.
* For wildcard descriptors (containing '*'), the index is required and used for derivation.
* For definite descriptors (not containing '*'), no index should be provided.
* @param descriptor - The descriptor to derive from
* @param index - The derivation index for wildcard descriptors
* @returns A new descriptor at the specified index for wildcard descriptors, or the original descriptor for definite ones
* @throws {Error} If index is undefined for a wildcard descriptor or if index is provided for a definite descriptor
*/
function getDescriptorAtIndex(descriptor, index) {
(0, assert_1.default)(descriptor instanceof wasm_miniscript_1.Descriptor);
wasm_miniscript_1.Descriptor.fromString(descriptor.toString(), 'derivable');
descriptor = wasm_miniscript_1.Descriptor.fromStringDetectType(descriptor.toString());
if (descriptor.hasWildcard()) {
if (index === undefined) {
throw new Error('Derivable descriptor requires an index');
}
return descriptor.atDerivationIndex(index);
}
else {
if (index !== undefined) {
throw new Error('Definite descriptor cannot be derived with index');
}
return descriptor;
}
}
function getDescriptorAtIndexCheckScript(descriptor, index, script, descriptorString = descriptor.toString()) {
(0, assert_1.default)(descriptor instanceof wasm_miniscript_1.Descriptor);
const descriptorAtIndex = getDescriptorAtIndex(descriptor, index);
if (!script.equals(descriptorAtIndex.scriptPubkey())) {
throw new Error(`Script mismatch: descriptor ${descriptorString} script=${script.toString('hex')}`);
}
(0, assert_1.default)(descriptorAtIndex instanceof wasm_miniscript_1.Descriptor);
return descriptorAtIndex;
}
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