@polkadot/types-codec
Version:
Implementation of the SCALE codec
71 lines (70 loc) • 2.18 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.LinkageResult = exports.Linkage = void 0;
const Option_js_1 = require("../base/Option.js");
const Tuple_js_1 = require("../base/Tuple.js");
const Vec_js_1 = require("../base/Vec.js");
const Struct_js_1 = require("../native/Struct.js");
const EMPTY = new Uint8Array();
/**
* @name Linkage
* @description The wrapper for the result from a LinkedMap
*/
class Linkage extends Struct_js_1.Struct {
constructor(registry, Type, value) {
super(registry, {
previous: Option_js_1.Option.with(Type),
// eslint-disable-next-line sort-keys
next: Option_js_1.Option.with(Type)
}, value);
}
static withKey(Type) {
return class extends Linkage {
constructor(registry, value) {
super(registry, Type, value);
}
};
}
/**
* @description Returns the next item the Linkage is pointing to
*/
get previous() {
return this.get('previous');
}
/**
* @description Returns the previous item the Linkage is pointing to
*/
get next() {
return this.get('next');
}
/**
* @description Returns the base runtime type name for this instance
*/
toRawType() {
return `Linkage<${this.next.toRawType(true)}>`;
}
/**
* @description Custom toU8a which with bare mode does not return the linkage if empty
*/
toU8a(isBare) {
// As part of a storage query (where these appear), in the case of empty, the values
// are NOT populated by the node - follow the same logic, leaving it empty
return this.isEmpty
? EMPTY
: super.toU8a(isBare);
}
}
exports.Linkage = Linkage;
/**
* @name LinkageResult
* @description A Linkage keys/Values tuple
*/
class LinkageResult extends Tuple_js_1.Tuple {
constructor(registry, [TypeKey, keys], [TypeValue, values]) {
super(registry, {
Keys: Vec_js_1.Vec.with(TypeKey),
Values: Vec_js_1.Vec.with(TypeValue)
}, [keys, values]);
}
}
exports.LinkageResult = LinkageResult;