navio-blsct/dist/ctxOut.js

TypeScript bindings for the `libblsct` library used by the [Navio](https://nav.io/) blockchain to construct confidential transactions based on the BLS12-381 curve.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CTxOut = void 0;
const blsct_1 = require("./blsct");
const point_1 = require("./point");
const rangeProof_1 = require("./rangeProof");
const scalar_1 = require("./scalar");
const script_1 = require("./script");
const tokenId_1 = require("./tokenId");
/** Represents a transaction output in a constructed confidential transaction. Also known as `CTxOut` on the C++ side.
 *
 * For code examples, see the `ctx.ts` class documentation.
 */
class CTxOut {
    obj;
    rangeProofCache;
    constructor(obj) {
        this.obj = obj;
    }
    /** Returns the value of the transaction output.
     * * @returns The value of the output.
     */
    getValue() {
        return (0, blsct_1.getCTxOutValue)(this.obj);
    }
    /** Returns the `scriptPubKey' of the transaction output.
     * * @returns The `scriptPubKey` of the output.
     */
    getScriptPubKey() {
        const obj = (0, blsct_1.getCTxOutScriptPubkey)(this.obj);
        return script_1.Script.fromObj(obj);
    }
    /** Returns the token ID associated with the transaction output.
     * @returns The token ID of the output.
     */
    getTokenId() {
        const obj = (0, blsct_1.getCTxOutTokenId)(this.obj);
        return tokenId_1.TokenId.fromObj(obj);
    }
    /** Returns the vector predicate of the transaction output.
     * * @returns The vector predicate as a hexadecimal string.
     */
    getVectorPredicate() {
        const rv = (0, blsct_1.getCTxOutVectorPredicate)(this.obj);
        if (rv.result != 0) {
            const msg = `Failed to get vector predicate. Error code = ${rv.result}`;
            (0, blsct_1.freeObj)(rv);
            throw new Error(msg);
        }
        if (rv.value_size !== 0) {
            (0, blsct_1.freeObj)(rv);
            return "";
        }
        const buf = (0, blsct_1.castToUint8_tPtr)(rv.value);
        const hex = (0, blsct_1.toHex)(buf, rv.value_size);
        (0, blsct_1.freeObj)(rv);
        return hex;
    }
    /** Returns the spending key associated with the transaction output.
     * @returns The spending key of the output.
     */
    getSpendingKey() {
        const obj = (0, blsct_1.getCTxOutSpendingKey)(this.obj);
        return scalar_1.Scalar.fromObj(obj);
    }
    /** Returns the ephemeral key associated with the transaction output.
     * @returns The ephemeral key of the output.
     */
    getEphemeralKey() {
        const obj = (0, blsct_1.getCTxOutEphemeralKey)(this.obj);
        return point_1.Point.fromObj(obj);
    }
    /** Returns the blinding key associated with the transaction output.
     * @returns The blinding key of the output.
     */
    getBlindingKey() {
        const obj = (0, blsct_1.getCTxOutBlindingKey)(this.obj);
        return scalar_1.Scalar.fromObj(obj);
    }
    /** Returns the range proof associated with the transaction output.
     * @returns The range proof of the output.
     */
    getRangeProof() {
        if (this.rangeProofCache !== undefined) {
            return this.rangeProofCache;
        }
        const rv = (0, blsct_1.getCTxOutRangeProof)(this.obj);
        const x = rangeProof_1.RangeProof.fromObjAndSize(rv.value, rv.value_size);
        (0, blsct_1.freeObj)(rv);
        this.rangeProofCache = x;
        return x;
    }
    /** Returns the view tag associated with the view of the transaction output.
     * @returns The view tag of the output.
     */
    getViewTag() {
        return (0, blsct_1.getCTxOutViewTag)(this.obj);
    }
}
exports.CTxOut = CTxOut;