saepenatus
Version:
Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul
57 lines • 1.74 kB
JavaScript
;
import { Coder } from "./abstract-coder";
import { pack, unpack } from "./array";
export class TupleCoder extends 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);
this.coders = coders;
}
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) {
return pack(writer, this.coders, value);
}
decode(reader) {
return reader.coerce(this.name, unpack(reader, this.coders));
}
}
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