ccxt
Version:
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JavaScript
;
Object.defineProperty(exports, '__esModule', { value: true });
var properties = require('../utils/properties.js');
var typed = require('../typed.js');
var abstractCoder = require('./abstract-coder.js');
var array = require('./array.js');
// ----------------------------------------------------------------------------
/**
* @_ignore
*/
class TupleCoder extends abstractCoder.Coder {
constructor(coders, localName) {
let dynamic = false;
const types = [];
coders.forEach((coder) => {
if (coder.dynamic) {
dynamic = true;
}
types.push(coder.type);
});
const type = ("tuple(" + types.join(",") + ")");
super("tuple", type, localName, dynamic);
properties.defineProperties(this, { coders: Object.freeze(coders.slice()) });
}
defaultValue() {
const values = [];
this.coders.forEach((coder) => {
values.push(coder.defaultValue());
});
// We only output named properties for uniquely named coders
const uniqueNames = this.coders.reduce((accum, coder) => {
const name = coder.localName;
if (name) {
if (!accum[name]) {
accum[name] = 0;
}
accum[name]++;
}
return accum;
}, {});
// Add named values
this.coders.forEach((coder, index) => {
let name = coder.localName;
if (!name || uniqueNames[name] !== 1) {
return;
}
if (name === "length") {
name = "_length";
}
if (values[name] != null) {
return;
}
values[name] = values[index];
});
return Object.freeze(values);
}
encode(writer, _value) {
const value = typed.Typed.dereference(_value, "tuple");
return array.pack(writer, this.coders, value);
}
decode(reader) {
return array.unpack(reader, this.coders);
}
}
exports.TupleCoder = TupleCoder;