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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/algo-msgpack-with-bigint/dist
Просмотр файла: ExtensionCodec.js
"use strict";
// ExtensionCodec to handle MessagePack extensions
Object.defineProperty(exports, "__esModule", { value: true });
exports.ExtensionCodec = void 0;
const ExtData_1 = require("./ExtData");
const timestamp_1 = require("./timestamp");
class ExtensionCodec {
constructor() {
// built-in extensions
this.builtInEncoders = [];
this.builtInDecoders = [];
// custom extensions
this.encoders = [];
this.decoders = [];
this.register(timestamp_1.timestampExtension);
}
register({ type, encode, decode, }) {
if (type >= 0) {
// custom extensions
this.encoders[type] = encode;
this.decoders[type] = decode;
}
else {
// built-in extensions
const index = 1 + type;
this.builtInEncoders[index] = encode;
this.builtInDecoders[index] = decode;
}
}
tryToEncode(object, context) {
// built-in extensions
for (let i = 0; i < this.builtInEncoders.length; i++) {
const encoder = this.builtInEncoders[i];
if (encoder != null) {
const data = encoder(object, context);
if (data != null) {
const type = -1 - i;
return new ExtData_1.ExtData(type, data);
}
}
}
// custom extensions
for (let i = 0; i < this.encoders.length; i++) {
const encoder = this.encoders[i];
if (encoder != null) {
const data = encoder(object, context);
if (data != null) {
const type = i;
return new ExtData_1.ExtData(type, data);
}
}
}
if (object instanceof ExtData_1.ExtData) {
// to keep ExtData as is
return object;
}
return null;
}
decode(data, type, context) {
const decoder = type < 0 ? this.builtInDecoders[-1 - type] : this.decoders[type];
if (decoder) {
return decoder(data, type, context);
}
else {
// decode() does not fail, returns ExtData instead.
return new ExtData_1.ExtData(type, data);
}
}
}
exports.ExtensionCodec = ExtensionCodec;
ExtensionCodec.defaultCodec = new ExtensionCodec();
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