58 lines
2.4 KiB
JavaScript
58 lines
2.4 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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var bignumber_1 = require("@ethersproject/bignumber");
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var constants_1 = require("@ethersproject/constants");
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var abstract_coder_1 = require("./abstract-coder");
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var NumberCoder = /** @class */ (function (_super) {
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__extends(NumberCoder, _super);
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function NumberCoder(size, signed, localName) {
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var _this = this;
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var name = ((signed ? "int" : "uint") + (size * 8));
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_this = _super.call(this, name, name, localName, false) || this;
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_this.size = size;
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_this.signed = signed;
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return _this;
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}
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NumberCoder.prototype.encode = function (writer, value) {
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var v = bignumber_1.BigNumber.from(value);
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// Check bounds are safe for encoding
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var maxUintValue = constants_1.MaxUint256.maskn(writer.wordSize * 8);
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if (this.signed) {
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var bounds = maxUintValue.maskn(this.size * 8 - 1);
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if (v.gt(bounds) || v.lt(bounds.add(constants_1.One).mul(constants_1.NegativeOne))) {
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this._throwError("value out-of-bounds", value);
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}
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}
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else if (v.lt(constants_1.Zero) || v.gt(maxUintValue.maskn(this.size * 8))) {
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this._throwError("value out-of-bounds", value);
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}
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v = v.toTwos(this.size * 8).maskn(this.size * 8);
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if (this.signed) {
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v = v.fromTwos(this.size * 8).toTwos(8 * writer.wordSize);
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}
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return writer.writeValue(v);
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};
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NumberCoder.prototype.decode = function (reader) {
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var value = reader.readValue().maskn(this.size * 8);
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if (this.signed) {
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value = value.fromTwos(this.size * 8);
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}
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return reader.coerce(this.name, value);
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};
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return NumberCoder;
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}(abstract_coder_1.Coder));
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exports.NumberCoder = NumberCoder;
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