saepenatus
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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
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JavaScript
"use strict";
import { BigNumber } from "@ethersproject/bignumber";
import { MaxUint256, NegativeOne, One, Zero } from "@ethersproject/constants";
import { Coder } from "./abstract-coder";
export class NumberCoder extends Coder {
constructor(size, signed, localName) {
const name = ((signed ? "int" : "uint") + (size * 8));
super(name, name, localName, false);
this.size = size;
this.signed = signed;
}
defaultValue() {
return 0;
}
encode(writer, value) {
let v = BigNumber.from(value);
// Check bounds are safe for encoding
let maxUintValue = MaxUint256.mask(writer.wordSize * 8);
if (this.signed) {
let bounds = maxUintValue.mask(this.size * 8 - 1);
if (v.gt(bounds) || v.lt(bounds.add(One).mul(NegativeOne))) {
this._throwError("value out-of-bounds", value);
}
}
else if (v.lt(Zero) || v.gt(maxUintValue.mask(this.size * 8))) {
this._throwError("value out-of-bounds", value);
}
v = v.toTwos(this.size * 8).mask(this.size * 8);
if (this.signed) {
v = v.fromTwos(this.size * 8).toTwos(8 * writer.wordSize);
}
return writer.writeValue(v);
}
decode(reader) {
let value = reader.readValue().mask(this.size * 8);
if (this.signed) {
value = value.fromTwos(this.size * 8);
}
return reader.coerce(this.name, value);
}
}
//# sourceMappingURL=number.js.map